SPIROBIFLUORENE DERIVATIVES FOR USE IN ELECTRONIC DEVICES

The present application relates to a spirobifluorene derivative of a formula (I) defined hereinafter which is suitable for use in electronic devices, especially organic electroluminescent devices (OLEDs).

Electronic devices in the context of this application are understood to mean what are called organic electronic devices, which contain organic semiconductor materials as functional materials. More particularly, these are understood to mean OLEDs.

The construction of OLEDs in which organic compounds are used as functional materials is common knowledge in the prior art. In general, the term OLEDs is understood to mean electronic devices which have one or more layers comprising organic compounds and emit light on application of electrical voltage.

In electronic devices, especially OLEDs, there is great interest in improving the performance data, especially lifetime, efficiency and operating voltage. In these aspects, it has not yet been possible to find any entirely

satisfactory solution.

A great influence on the performance data of electronic devices is possessed by layers having a hole-transporting function, for example hole- injecting layers, hole transport layers, electron blocking layers and also emitting layers. For use in these layers, there is a continuous search for new materials having hole-transporting properties.

In the course of the present invention, it has been found that

spirobifluorene derivatives which have an amine or bridged amine group in the 2-position, and a further substituent which is selected from particular chemical groups in one of the 5, 6, and 8-position of the spirobifluorene, are very well suited for use as materials with hole transporting function, in particular for use as materials of the hole transporting layer, the electron blocking layer and the emitting layer, more particularly for use in the electron blocking layer. An electron blocking layer is understood in this context to be a layer which is directly adjacent to the emitting layer on the anode side, and which serves to block electrons which are present in the emitting layer from entering the hole transporting layers of the OLED.

When used in electronic devices, in particular in OLEDs, they lead to excellent results in terms of lifetime, operating voltage and quantum efficiency of the devices. The compounds are also characterized by very good hole-conducting properties, very good electron-blocking properties, high glass transition temperature, high oxidation stability, good solubility, high thermal stability, and low sublimation temperature.

The present application therefore relates to a compound of the formula (I)

Formula (I), where the variables are defined as follows: A is C or Si;

Z ¹ is, identically or differently on each occurrence, selected from CR ¹ , CR ² and N;

Z ² is, identically or differently on each occurrence, selected from CR ² and N; is, identically or differently on each occurrence, selected from CR ³ and N;

Ar ^L is, identically or differently on each occurrence, selected from

aromatic ring systems having 6 to 40 aromatic ring atoms, which may be substituted by one or more radicals R ⁴ , and heteroaromatic ring systems having 5 to 40 aromatic ring atoms, which may be substituted by one or more radicals R ⁴ ; Ar ¹ is, identically or differently, selected from aromatic ring systems having 6 to 40 aromatic ring atoms, which may be substituted by one or more radicals R ⁴ , and heteroaromatic ring systems having 5 to 40 aromatic ring atoms, which may be substituted by one or more radicals R ⁴ ; is a single bond or is a divalent group selected from C(R ⁴ )2, N(R ⁴ ), O, and S;

R ¹ is selected, identically or differently on each occurrence, from

Si(R ⁵ )3, straight-chain alkyl, alkoxy or thioalkyl groups having 1 to 20 C atoms, branched or cyclic alkyl, alkoxy or thioalkyl groups having 3 to 20 C atoms, aromatic ring systems having 6 to 40 aromatic ring atoms, and heteroaromatic ring systems having 5 to 40 aromatic ring atoms, where the said alkyl, alkoxy and thioalkyl groups and the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ ;

: ³ are selected, identically or differently on each occurrence, from H, D, F, CI, Br, I, C(=O)R ⁵ , CN, Si(R ⁵ ) ₃ , N(R ⁵ ) ₂ , P(=O)(R ⁵ ) ₂ , OR ⁵ , S(=O)R ⁵ , S(=O) ₂ R ⁵ , SCN, SF ₅ , straight-chain alkyl or alkoxy groups having 1 to 20 C atoms, branched or cyclic alkyl or alkoxy groups having 3 to 20 C atoms, alkenyl or alkynyl groups having 2 to 20 C atoms, aromatic ring systems having 6 to 40 aromatic ring atoms, and heteroaromatic ring systems having 5 to 40 aromatic ring atoms; where two or more radicals selected from radicals R ² and R ³ may be connected to each other to form a ring; where the said alkyl, alkoxy, alkenyl and alkynyl groups and the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ , and where one or more CH ₂ groups in the said alkyl, alkoxy, alkenyl and alkynyl groups may in each case be replaced by -R ⁵ C=CR ⁵ -, -C≡C-, Si(R ⁵ ) ₂ , C=O, C=NR ⁵ ,

-C(=O)O-, -C(=O)NR ⁵ -, NR ⁵ , P(=O)(R ⁵ ), -O-, -S-, SO or SO ₂ ; is, identically or differently at each occurrence, selected from H, D, F, C(=O)R ⁵ , CN, Si(R ⁵ ) ₃ , N(R ⁵ ) ₂ , P(=O)(R ⁵ ) ₂ , OR ⁵ , S(=O)R ⁵ , S(=O) ₂ R ⁵ , straight-chain alkyl or alkoxy groups having 1 to 20 C atoms, branched or cyclic alkyl or alkoxy groups having 3 to 20 C atoms, alkenyl or alkynyl groups having 2 to 20 C atoms, aromatic ring systems having 6 to 40 aromatic ring atoms, and

heteroaromatic ring systems having 5 to 40 aromatic ring atoms; where two or more radicals R ⁴ may be connected to each other to form a ring; where the said alkyl, alkoxy, alkenyl and alkynyl groups and the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ , and where one or more CH ₂ groups in the said alkyl, alkoxy, alkenyl and alkynyl groups may in each case be replaced by -R ⁵ C=CR ⁵ -, -C≡C- , Si(R ⁵ ) ₂ , C=O, C=NR ⁵ , -C(=O)O-, -C(=O)NR ⁵ -, NR ⁵ , P(=O)(R ⁵ ), -O- , -S-, SO or SO ₂ ; is, identically or differently at each occurrence, selected from H, D, F, C(=O)R ⁶ , CN, Si(R ⁶ ) ₃ , N(R ⁶ ) ₂ , P(=O)(R ⁶ ) ₂ , OR ⁶ , S(=O)R ⁶ , S(=O) ₂ R ⁶ , straight-chain alkyl or alkoxy groups having 1 to 20 C atoms, branched or cyclic alkyl or alkoxy groups having 3 to 20 C atoms, alkenyl or alkynyl groups having 2 to 20 C atoms, aromatic ring systems having 6 to 40 aromatic ring atoms, and

heteroaromatic ring systems having 5 to 40 aromatic ring atoms; where two or more radicals R ⁵ may be connected to each other to form a ring; where the said alkyl, alkoxy, alkenyl and alkynyl groups and the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁶ , and where one or more Ch groups in the said alkyl, alkoxy, alkenyl and alkynyl groups may in each case be replaced by -R ⁶ C=CR ⁶ -, -C≡C- , Si(R ⁶ ) ₂ , C=O, C=NR ⁶ , -C(=0)0-, -C(=O)NR ⁶ -, NR ⁶ , P(=O)(R ⁶ ), -O-

, -S-, SO or SO ₂ ; is selected, identically or differently at each occurrence, from H, D, F, CN, alkyl groups having 1 to 20 C atoms, aromatic ring systems having 6 to 40 C atoms, and heteroaromatic ring systems having 5 to 40 aromatic ring atoms; where two or more radicals R ⁶ may be connected to each other to form a ring; and where the said alkyl groups, aromatic ring systems and heteroaromatic ring systems may be substituted by F and CN; is on each occurrence, identically or differently, 0 or 1 ; where in the case of k=0, the group Ar ^L is not present and the nitrogen atom and the spirobifluorene group are directly connected; m is on each occurrence, identically or differently, 0 or 1 , where in the case of m=0, the group E is not present and the groups Ar ¹ are not connected; characterized in that at least one of groups Z ¹ is CR ¹ .

The circles drawn in the six-rings of formula (I) mean that the respective rings have aromaticity, resulting from alternation of double bonds and single bonds between the atoms forming the rings.

The following definitions apply to the chemical groups used as general definitions. They only apply insofar as no more specific definitions are given.

An aryl group in the sense of this invention contains 6 to 40 aromatic ring atoms, of which none is a heteroatom. An aryl group here is taken to mean either a simple aromatic ring, for example benzene, or a condensed aromatic polycyde, for example naphthalene, phenanthrene, or anthracene. A condensed aromatic polycyde in the sense of the present application consists of two or more simple aromatic rings condensed with one another.

A heteroaryl group in the sense of this invention contains 5 to 40 aromatic ring atoms, at least one of which is a heteroatom. The heteroatoms are preferably selected from N, O and S. A heteroaryl group here is taken to mean either a simple heteroaromatic ring, such as pyridine, pyrimidine or thiophene, or a condensed heteroaromatic polycyde, such as quinoline or carbazole. A condensed heteroaromatic polycyde in the sense of the present application consists of two or more simple heteroaromatic rings condensed with one another. An aryl or heteroaryl group, which may in each case be substituted by the above-mentioned radicals and which may be linked to the aromatic or heteroaromatic ring system via any desired positions, is taken to mean, in particular, groups derived from benzene, naphthalene, anthracene, phenanthrene, pyrene, dihydropyrene, chrysene, perylene, fluoranthene, benz- anthracene, benzophenanthrene, tetracene, pentacene, benzopyrene, furan, benzofuran, isobenzofuran, dibenzofuran, thiophene, benzothio- phene, isobenzothiophene, dibenzothiophene, pyrrole, indole, isoindole, carbazole, pyridine, quinoline, isoquinoline, acridine, phenanthridine, benzo-5,6-quinoline, benzo-6,7-quinoline, benzo-7,8-quinoline, pheno- thiazine, phenoxazine, pyrazole, indazole, imidazole, benzimidazole, naphthimidazole, phenanthrimidazole, pyridimidazole, pyrazinimidazole, quinoxalinimidazole, oxazole, benzoxazole, naphthoxazole, anthroxazole, phenanthroxazole, isoxazole, 1 ,2-thiazole, 1 ,3-thiazole, benzothiazole, pyridazine, benzopyridazine, pyrimidine, benzopyrimidine, quinoxaline, pyrazine, phenazine, naphthyridine, azacarbazole, benzocarboline, phen- anthroline, 1 ,2,3-triazole, 1 ,2,4-triazole, benzotriazole, 1 ,2,3-oxadiazole, 1 ,2,4-oxadiazole, 1 ,2,5-oxadiazole, 1 ,3,4-oxadiazole, 1 ,2,3-thiadiazole, 1 ,2,4-thiadiazole, 1 ,2,5-thiadiazole, 1 ,3,4-thiadiazole, 1 ,3,5-triazine, 1 ,2,4- triazine, 1 ,2,3-triazine, tetrazole, 1 ,2,4,5-tetrazine, 1 ,2,3,4-tetrazine, 1 ,2,3,5-tetrazine, purine, pteridine, indolizine and benzothiadiazole. An aromatic ring system in the sense of this invention contains 6 to 40 C atoms in the ring system and does not comprise any heteroatoms as aromatic ring atoms. An aromatic ring system in the sense of this application therefore does not comprise any heteroaryl groups. An aromatic ring system in the sense of this invention is intended to be taken to mean a system which does not necessarily contain only aryl groups, but instead in which, in addition, a plurality of aryl groups may be connected by a non-aromatic unit such as one or more optionally substituted C, Si, N, O or S atoms. The non-aromatic unit in such case comprises preferably less than 10% of the atoms other than H, relative to the total number of atoms other than H of the whole aromatic ring system. Thus, for example, systems such as 9,9'-spirobifluorene, 9,9'-diarylfluorene, triarylamine, diaryl ether, and stilbene are also intended to be taken to be aromatic ring systems in the sense of this invention, as are systems in which two or more aryl groups are connected, for example, by a linear or cyclic alkyl, alkenyl or alkynyl group or by a silyl group. Furthermore, systems in which two or more aryl groups are linked to one another via single bonds are also taken to be aromatic ring systems in the sense of this invention, such as, for example, systems such as biphenyl and terphenyl.

Preferably, an aromatic ring system is understood to be a chemical group, in which the aryl groups which constitute the chemical group are

conjugated with each other. This means that the aryl groups are connected with each other via single bonds or via connecting units which have a free pi electron pair which can take part in the conjugation. The connecting units are preferably selected from nitrogen atoms, single C=C units, single C≡C units, multiple C=C units and/or C≡C units which are conjugated with each other, -O-, and -S-. A heteroaromatic ring system in the sense of this invention contains 5 to 40 aromatic ring atoms, at least one of which is a heteroatom. The

heteroatoms are preferably selected from N, O or S. A heteroaromatic ring system is defined as an aromatic ring system above, with the difference that it must obtain at least one heteroatom as one of the aromatic ring atoms. It thereby differs from an aromatic ring system according to the definition of the present application, which cannot comprise any

heteroatom as aromatic ring atom.

An aromatic ring system having 6 to 40 aromatic ring atoms or a heteroaro- matic ring system having 5 to 40 aromatic ring atoms is in particular a group which is derived from the above mentioned aryl or heteroaryl groups, or from biphenyl, terphenyl, quaterphenyl, fluorene, spirobifluorene, dihydrophenanthrene, dihydropyrene, tetrahydropyrene, indenofluorene, truxene, isotruxene, spirotruxene, spiroisotruxene, and indenocarbazole.

For the purposes of the present invention, a straight-chain alkyl group having 1 to 20 C atoms or a branched or cyclic alkyl group having 3 to 20 C atoms or an alkenyl or alkynyl group having 2 to 20 C atoms, in which, in addition, individual H atoms or Ch groups may be substituted by the groups mentioned above under the definition of the radicals, is preferably taken to mean the radicals methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, t-butyl, 2-methyl butyl, n-pentyl, s-pentyl, cyclopentyl, neopentyl, n-hexyl, cyclohexyl, neohexyl, n-heptyl, cycloheptyl, n-octyl, cyclooctyl, 2-ethylhexyl, trifluoromethyl, pentafluoroethyl, 2,2,2-trifluoroethyl, ethenyl, propenyl, butenyl, pentenyl, cyclopentenyl, hexenyl, cyclohexenyl, hep- tenyl, cycloheptenyl, octenyl, cyclooctenyl, ethynyl, propynyl, butynyl, pen- tynyl, hexynyl or octynyl.

An alkoxy or thioalkyl group having 1 to 20 C atoms is preferably taken to mean methoxy, trifluoromethoxy, ethoxy, n-propoxy, i-propoxy, n-butoxy, i-butoxy, s-butoxy, t-butoxy, n-pentoxy, s-pentoxy, 2-methyl butoxy, n-hexoxy, cyclohexyloxy, n-heptoxy, cycloheptyloxy, n-octyloxy, cyclooctyl- oxy, 2-ethylhexyloxy, pentafluoroethoxy, 2,2,2-trifluoroethoxy, methylthio, ethylthio, n-propylthio, i-propylthio, n-butylthio, i-butylthio, s-butylthio, t-butylthio, n-pentylthio, s-pentylthio, n-hexylthio, cyclohexylthio, n-heptyl- thio, cycloheptylthio, n-octylthio, cyclooctylthio, 2-ethylhexylthio, trifluoro- methylthio, pentafluoroethylthio, 2,2,2-trifluoroethylthio, ethenylthio, propenylthio, butenylthio, pentenylthio, cyclopentenylthio, hexenylthio, cyclohexenylthio, heptenylthio, cycloheptenylthio, octenylthio, cyclooctenyl- thio, ethynylthio, propynylthio, butynylthio, pentynylthio, hexynylthio, heptynylthio or octynylthio. Preferably, in compounds of formula (I), group A is C. Furthermore, preferably, Z ¹ is selected from CR ¹ and CR ² . Furthermore, preferably, Z ² is CR ² . Furthermore, preferably, Z ³ is CR ³ .

Furthermore, it is preferred that a maximum of three groups which are selected from groups Z ¹ , Z ² and Z ³ per aromatic ring of the compound of formula (I) is N. More preferably, in the compound of formula (I), a maximum of three groups selected from groups Z ¹ , Z ² and Z ³ is N. Preferably, group Ar ^L is selected from aromatic ring systems having 6 to 30 aromatic ring atoms, which may be substituted by one or more radicals R ⁴ . It is particularly preferred if Ar ^L is selected from divalent groups derived from benzene, biphenyl, terphenyl, naphthyl, fluorenyl, indenofluorenyl, spirobifluorenyl, dibenzofuranyl, dibenzothiophenyl, and carbazolyl, which may each be substituted by one or more radicals R ⁴ . Most preferably, Ar ^L is a divalent group derived from benzene, which may be substituted by one or more radicals R ⁴ .

Preferred groups Ar ^L conform to the following formulae

Ar ^L -1 Ar ^L -2 Ar ^L -3

Ar ^L -46 Ar ^L -47 Ar ^L -48

Ar ^L -49 Ar ^L -50 Ar ^L -51

Ar ^L -52 Ar ^L -53 Ar ^L -54

Ar ^L -55 Ar ^L -56 ^L -57

Ar ^L -58 Ar ^L -59 Ar ^L -60

where the dotted lines represent the bonds of the divalent group to the rest of the formula (I). Particularly preferred among the groups above are the groups according to one of formulae Ar ^L -1 , Ar ^L -2, Ar ^L -3, Ar ^L -4, Ar ^L -15, Ar ^L -20, Ar ^L -25, and Ar ^L - 36. It is preferred that index k is 0, meaning that the group Ar ^L is not present, so that the spirobifluorene and the nitrogen atom of the amine are directly connected with each other.

Preferably, groups Ar ¹ are, identically or differently, selected from radicals derived from the following groups, which are each optionally substituted by one or more radicals R ⁴ , or from combinations of 2 or 3 radicals derived from the following groups, which are each optionally substituted by one or more radicals R ⁴ : phenyl, biphenyl, terphenyl, quaterphenyl, naphthyl, fluorenyl, especially 9,9'-dimethylfluorenyl and 9,9'-diphenylfluorenyl, benzofluorenyl, spirobifluorenyl, indenofluorenyl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, benzofuranyl, benzothiophenyl, indolyl, quinolinyl, pyridyl, pyrimidyl, pyrazinyl, pyridazinyl and triazinyl.

Particularly preferred groups Ar ¹ are, identically or differently, selected from phenyl, biphenyl, terphenyl, quaterphenyl, naphthyl, fluorenyl, especially

9,9'-dimethylfluorenyl and 9,9'-diphenylfluorenyl, benzofluorenyl, spirobifluorenyl, indenofluorenyl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, benzofuranyl, benzothiophenyl, benzofused dibenzofuranyl, benzofused dibenzothiophenyl, naphthyl-substituted phenyl, fluorenyl- substituted phenyl, spirobifluorenyl-substituted phenyl, dibenzofuranyl- substituted phenyl, dibenzothiophenyl-substituted phenyl, carbazolyl- substituted phenyl, pyridyl-substituted phenyl, pyrimidyl-substituted phenyl, and triazinyl-substituted phenyl, each of which may optionally be

substituted by one or more radicals R ⁴ .

Preferably, groups Ar ¹ are, at each occurrence, selected differently.

Preferred groups Ar ¹ are, identically or differently, selected from groups of the following formulae

Ar-49 Ar-50

Ar-53

Ar-54 Ar-55 Ar-56

Ar-57 Ar-58 Ar-59

Ar-60 Ar-61 Ar-62

Ar-63 Ar-64 Ar-65

Ar-66 Ar-67 Ar-68

0

Ar-106 Ar-107 Ar-108

Ar-109 Ar-110 Ar-111

Ar-112 Ar-113

Ar-114 Ar-115 Ar-116

^^^^

^^^^

Ar-117 Ar-118 Ar-119

Ar-134 Ar-135 Ar-136

Ar-137 Ar-138 Ar-139

Ar-140 Ar-141 Ar-142

Ar-143 Ar-144 Ar-145

Ar-146 Ar-147 Ar-148

Ar-182 Ar-183 Ar-184

Ar-185 Ar-186 Ar-187

Ar-188 r-189 Ar-190

Ar-191

Ar-192 Ar-193 Ar-194

Ar-213 Ar-214 Ar-215

Ar-216 Ar-217 Ar-218

Ar-219 Ar-220 Ar-221

Ar-222 Ar-223 Ar-224

Ar-225 Ar-226 Ar-227

Ar-250 Ar-251 Ar-252 where the groups may be substituted at the free positions with groups R ⁴ , but are preferably unsubstituted in these positions, and where the dotted line symbolizes the bonding position to the nitrogen atom.

Particularly preferred groups Ar ¹ are groups which conform to one of above formulae Ar-1 , Ar-2, Ar-4, Ar-5, Ar-74, Ar-78, Ar-82, Ar-1 17, Ar-134, Ar- 139, Ar-150, and Ar-172.

According to a preferred embodiment, index m is 0, meaning that groups Ar ¹ are not connected by a group E.

According to an alternative embodiment, which may be preferred under certain conditions, index m is 1 , meaning that groups Ar ¹ are connected by a group E.

In the case that groups Ar ¹ are connected by a group E, it is preferred that groups Ar ¹ are selected, identically or differently, from phenyl and fluorenyl, each of which may be substituted by one or more groups R ⁴ . Furthermore, in such case, it is preferred that the group E which connects the groups Ar ¹ is located on the respective group Ar ¹ , preferably on the respective group Ar ¹ which is phenyl or fluorenyl, in ortho-position to the bond of the group Ar ¹ to the amine nitrogen atom. Furthermore, preferably, in such case a six-ring with the amine nitrogen atom is formed of the groups Ar ¹ and E if E is selected from C(R ⁴ )2, NR ⁴ , O and S; and a five-ring is formed if E is a single bond.

In the case that groups Ar ¹ are connected by a group E, particularly preferred embodiments of the moieties where the groups may be substituted at the free positions with groups R ⁴ , but are preferably unsubstituted in these positions, and where the dotted line symbolizes the bonding position to the nitrogen atom.

For the case m=0, particularly preferable moieties

in formula (I) conform to the following formulae

A-2

A-3 A-4

A-5 A-6

A-15 A-16

A-17 A-18

A-19 A-20

A-21 A-22

A-23 A-24

A-25 A-26

A-27 A-28 -29

A-31 A-32

A-33 A-34

A-35 A-36

A-37 A-38

A-39 A-40

A-41 A-42

A-45 A-46

A-47 A-48 where the groups may be substituted at the free positions with groups R ⁴ , but are preferably unsubstituted in these positions, and where the dotted line symbolizes the bonding position to the spirobifluorene moiety of formula (I).

Groups R ¹ are preferably selected, identically or differently, from

aromatic ring systems having 6 to 30 aromatic ring atoms, and

heteroaromatic ring systems having 5 to 30 aromatic ring atoms, where the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ ; particularly preferably selected, identically or differently, from

phenyl, biphenyl, terphenyl, quaterphenyl, naphthyl, fluorenyl, especially 9,9'-dimethylfluorenyl and 9,9'-diphenylfluorenyl, benzofluorenyl, spirobifluorenyl, indenofluorenyl, dibenzofuranyl, dibenzothiophenyl, carbazolyl, benzofuranyl, benzothiophenyl, benzofused dibenzofuranyl, benzofused dibenzothiophenyl, naphthyl-substituted phenyl, fluorenyl- substituted phenyl, spirobifluorenyl-substituted phenyl, dibenzofuranyl- substituted phenyl, dibenzothiophenyl-substituted phenyl, carbazolyl- substituted phenyl, pyridyl-substituted phenyl, pyrimidyl-substituted phenyl, and triazinyl-substituted phenyl, each of which may optionally be

substituted by one or more radicals R ⁵ .

For embodiments as groups R ¹ , the same preferred embodiments regarding groups Ar ^L , Ar ¹ , E, and indices k and m apply, as mentioned above in the context of groups

of formula (I). Particularly preferred groups R ¹ are groups which confornn to the following groups

R-16 R-17 R-18

R-19 R-20 R-21

R-22 R-23 R-24

R-25 R-26 R-27

R-28 R-29 R-30

R-31 R-32 R-33 R-67 R-68 R-69

R-70

R-73 R-74 R-75

R-76 R-77 R-78 R-113 R-114

R-115 R-116 R-117

R-118 R-119 R-120

R-121 R-123

R-127 R-128 R-129

R-171 R-172

R-174

R-175 R-176

R-177 R-178

R-179 R-180

R-181 R-182

R-183 R-184

R-185 R-186 R-195 R-196

R-197 R-198

R-199 R-200

R-201 R-202

R-203 R-204

R-205 R-206

R-207 R-208

R-21 1 R-212 where the groups may be substituted at the free positions with groups R ⁵ , but are preferably unsubstituted in these positions, and where the dotted line symbolizes the bonding position to the spirobifluorene moiety of formula (I). Particularly preferred groups R ¹ are groups conforming to one of formulae R-1 , R-2, R-21 , R-58, and R-66.

Groups R ² and R ³ are preferably selected, identically or differently, from H, F, straight-chain alkyl groups having 1 to 20 C atoms, branched or cyclic alkyl groups having 3 to 20 C atoms, aromatic ring systems having 6 to 30 aromatic ring atoms, and heteroaromatic ring systems having 5 to 30 aromatic ring atoms, where the said alkyl groups, aromatic ring systems and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ . More preferably, groups R ² are H. More preferably, groups R ³ are selected, identically or differently, from H, F, methyl, tert- butyl, and phenyl. Most preferably, groups R ³ are H.

Groups R ⁴ are preferably selected, identically or differently, from H, F, CN, Si(R ⁵ )3, straight-chain alkyl groups having 1 to 20 C atoms, branched or cyclic alkyl groups having 3 to 20 C atoms, aromatic ring systems having 6 to 40 aromatic ring atoms, and heteroaromatic ring systems having 5 to 40 aromatic ring atoms; where two or more radicals R ⁴ may be connected to each other to form a ring; where the said alkyl groups and the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ .

Groups R ⁵ are preferably selected, identically or differently, from H, F, CN, Si(R ⁶ )3, straight-chain alkyl groups having 1 to 20 C atoms, branched or cyclic alkyl groups having 3 to 20 C atoms, aromatic ring systems having 6 to 40 aromatic ring atoms, and heteroaromatic ring systems having 5 to 40 aromatic ring atoms; where two or more radicals R ⁵ may be connected to each other to form a ring; where the said alkyl groups and the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁶ .

Preferably, one, and not more than one group Z ¹ in formula (I) is CR ¹ . Furthermore, preferably, the group Z ¹ which is located in the ortho-position to the bond between the two six-rings is CR ¹ . Preferably, in this case, the other groups Z ¹ are CR ² . Formula (I) preferably conforms to one of formulae (l-A) to (l-C)

where the variables occurring are defined as above. Preferably, the variables conform to their above-described embodiments.

Among formulae (l-A), (l-B) and (l-C), formula (l-A) is preferred.

Preferred embodiments of formula (I) conform to one of formulae (l-A-1 ) to (l-C-2) where the variables occurring are as defined above, and R ¹¹ is selected from F, CI, Br, I, CN, SCN, SF ₅ , Si(R ⁵ ) ₃ , straight-chain alkyl, alkoxy or thioalkyi groups having 1 to 20 C atoms, branched or cyclic alkyl, alkoxy or thioalkyi groups having 3 to 20 C atoms, aromatic ring systems having 6 to 40 aromatic ring atoms, and heteroaromatic ring systems having 5 to 40 aromatic ring atoms, where the said alkyl, alkoxy and thioalkyi groups and the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ , and is preferably selected from aromatic ring systems having 6 to 30 aromatic ring atoms, and

heteroaromatic ring systems having 5 to 30 aromatic ring atoms, where the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ .

Among the above formulae, formulae (l-A-1 ) and (l-A-2) are preferred.

Particularly preferably embodiments of formula (I) conform to one of formulae (l-A-1 -1 ) to (l-C-2-2)

Formula (l-A-1 -1 ) Formula (l-A-1 -2)

where the variables occurring are defined as above, and where R ³¹ is selected, identically or differently, from H, D, F, C(=O)R ⁵ , CN, Si(R ⁵ ) ₃ , N(R ⁵ ) ₂ , P(=O)(R ⁵ ) ₂ , OR ⁵ , S(=O)R ⁵ , S(=O) ₂ R ⁵ , straight-chain alkyl or alkoxy groups having 1 to 20 C atoms, branched or cyclic alkyl or alkoxy groups having 3 to 20 C atoms, alkenyl or alkynyl groups having 2 to 20 C atoms, aromatic ring systems having 6 to 40 aromatic ring atoms, and

heteroaromatic ring systems having 5 to 40 aromatic ring atoms; where two or more radicals R ³¹ may be connected to each other to form a ring; where the said alkyl, alkoxy, alkenyl and alkynyl groups and the said aromatic and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ , and where one or more CH ₂ groups in the said alkyl, alkoxy, alkenyl and alkynyl groups may in each case be replaced

by -R ⁵ C=CR ⁵ -, -C≡C-, Si(R ⁵ ) ₂ , C=O, C=NR ⁵ ,

-C(=O)O-, -C(=O)NR ⁵ -, NR ⁵ , P(=O)(R ⁵ ), -O-, -S-, SO or SO ₂ , where at least one group R ³¹ is different from H and D. Preferably, R ³¹ is selected, identically or differently on each occurrence, from H, F, straight-chain alkyl groups having 1 to 20 C atoms, branched or cyclic alkyl groups having 3 to 20 C atoms, aromatic ring systems having 6 to 30 aromatic ring atoms, and heteroaromatic ring systems having 5 to 30 aromatic ring atoms, where the said alkyl groups, aromatic ring systems and heteroaromatic ring systems may in each case be substituted by one or more radicals R ⁵ , where at least one group R ³¹ is different from H. More preferably, R ³¹ is selected, identically or differently on each occurrence, from H, F, methyl, tert-butyl, and phenyl, where at least one group R ³¹ is different from H. Most preferably, both groups R ³¹ are different from H and D for the above embodiments.

Among the above formulae, formulae (l-A-1 -1 ), (l-A-1 -2), (l-A-2-1 ) and (l-A- 2-2) are preferred. Particularly preferred are formulae (l-A-1 -1 ) and (l-A-2-

1 )-

Particularly preferred specific compounds are the following compounds, which conform to the formula (l-A-2-2-1 ) below

formula (l-A-2-2-1 ), in which R ³¹ , Ar ^1~1 and Ar ^1~2 are specified as shown in the list below

(formulae Ar-1 to Ar-172 are as specified above):

No. Ar ^1"1 Ar ^1"2 No. Ar ^1"1 Ar ^1"2

C-1 H Ar-1 Ar-1 C-157 Methyl Ar-1 Ar-1

C-2 Ar-2 C-158 Ar-2

C-3 Ar-4 C-159 Ar-4

C-4 Ar-5 C-160 Ar-5

C-5 Ar-74 C-161 Ar-74

C-6 Ar-78 C-162 Ar-78 C-7 Ar-82 C-163 Ar-82

C-8 Ar-1 17 C-164 Ar-1 17

C-9 Ar-134 C-165 Ar-134

C-10 Ar-139 C-166 Ar-139

C-1 1 Ar-150 C-167 Ar-150

C-12 Ar-172 C-168 Ar-172

C-13 Ar-2 Ar-2 C-169 Ar-2 Ar-2

C-14 Ar-4 C-170 Ar-4

C-15 Ar-5 C-171 Ar-5

C-16 Ar-74 C-172 Ar-74

C-17 Ar-78 C-173 Ar-78

C-18 Ar-82 C-174 Ar-82

C-19 Ar-1 17 C-175 Ar-1 17

C-20 Ar-134 C-176 Ar-134

C-21 Ar-139 C-177 Ar-139

C-22 Ar-150 C-178 Ar-150

C-23 Ar-172 C-179 Ar-172

C-24 Ar-4 Ar-4 C-180 Ar-4 Ar-4

C-25 Ar-5 C-181 Ar-5

C-26 Ar-74 C-182 Ar-74

C-27 Ar-78 C-183 Ar-78

C-28 Ar-82 C-184 Ar-82

C-29 Ar-1 17 C-185 Ar-1 17

C-30 Ar-134 C-186 Ar-134

C-31 Ar-139 C-187 Ar-139

C-32 Ar-150 C-188 Ar-150

C-33 Ar-172 C-189 Ar-172

C-34 Ar-5 Ar-5 C-190 Ar-5 Ar-5

C-35 Ar-74 C-191 Ar-74

C-36 Ar-78 C-192 Ar-78

C-37 Ar-82 C-193 Ar-82

C-38 Ar-1 17 C-194 Ar-1 17

C-39 Ar-134 C-195 Ar-134

C-40 Ar-139 C-196 Ar-139

C-41 Ar-150 C-197 Ar-150

C-42 Ar-172 C-198 Ar-172

C-43 Ar-74 Ar-74 C-199 Ar-74 Ar-74

C-44 Ar-78 C-200 Ar-78

C-45 Ar-82 C-201 Ar-82

C-46 Ar-1 17 C-202 Ar-1 17

C-47 Ar-134 C-203 Ar-134

C-48 Ar-139 C-204 " Ar-139 C-49 Ar-150 C-205 Ar-150

C-50 Ar-172 C-206 Ar-172

C-51 Ar-78 Ar-78 C-207 Ar-78 Ar-78

C-52 Ar-82 C-208 Ar-82

C-53 Ar-1 17 C-209 Ar-1 17

C-54 Ar-134 C-210 Ar-134

C-55 Ar-139 C-21 1 Ar-139

C-56 Ar-150 C-212 Ar-150

C-57 Ar-172 C-213 Ar-172

C-58 Ar-82 Ar-82 C-214 Ar-82 Ar-82

C-59 Ar-1 17 C-215 Ar-1 17

C-60 Ar-134 C-216 Ar-134

C-61 Ar-139 C-217 Ar-139

C-62 Ar-150 C-218 Ar-150

C-63 Ar-172 C-219 Ar-172

C-64 Ar-1 17 Ar-1 17 C-220 Ar-1 17 Ar-1 17

C-65 Ar-134 C-221 Ar-134

C-66 Ar-139 C-222 Ar-139

C-67 Ar-150 C-223 Ar-150

C-68 Ar-172 C-224 Ar-172

C-69 Ar-134 Ar-134 C-225 Ar-134 Ar-134

C-70 Ar-139 C-226 Ar-139

C-71 Ar-150 C-227 Ar-150

C-72 Ar-172 C-228 Ar-172

C-73 Ar-139 Ar-139 C-229 Ar-139 Ar-139

C-74 Ar-150 C-230 Ar-150

C-75 Ar-172 C-231 Ar-172

C-76 Ar-150 Ar-150 C-232 Ar-150 Ar-150

C-77 Ar-172 C-233 Ar-172

C-78 Ar-172 Ar-172 C-234 Ar-172 Ar-172

C-79 F Ar-1 Ar-1 C-235 tert-Butyl Ar-1 Ar-1

C-80 Ar-2 C-236 Ar-2

C-81 Ar-4 C-237 Ar-4

C-82 Ar-5 C-238 Ar-5

C-83 Ar-74 C-239 Ar-74

C-84 Ar-78 C-240 Ar-78

C-85 Ar-82 C-241 Ar-82

C-86 Ar-1 17 C-242 Ar-1 17

C-87 Ar-134 C-243 Ar-134

C-88 Ar-139 C-244 Ar-139

C-89 Ar-150 C-245 Ar-150

C-90 Ar-172 C-246 " Ar-172 C-91 Ar-2 Ar-2 C-247 Ar-2 Ar-2

C-92 Ar-4 C-248 Ar-4

C-93 Ar-5 C-249 Ar-5

C-94 Ar-74 C-250 Ar-74

C-95 Ar-78 C-251 Ar-78

C-96 Ar-82 C-252 Ar-82

C-97 Ar-1 17 C-253 Ar-1 17

C-98 Ar-134 C-254 Ar-134

C-99 Ar-139 C-255 Ar-139

C-100 Ar-150 C-256 Ar-150

C-101 Ar-172 C-257 Ar-172

C-102 Ar-4 Ar-4 C-258 Ar-4 Ar-4

C-103 Ar-5 C-259 Ar-5

C-104 Ar-74 C-260 Ar-74

C-105 Ar-78 C-261 Ar-78

C-106 Ar-82 C-262 Ar-82

C-107 Ar-1 17 C-263 Ar-1 17

C-108 Ar-134 C-264 Ar-134

C-109 Ar-139 C-265 Ar-139

C-1 10 Ar-150 C-266 Ar-150

C-1 1 1 Ar-172 C-267 Ar-172

C-1 12 Ar-5 Ar-5 C-268 Ar-5 Ar-5

C-1 13 Ar-74 C-269 Ar-74

C-1 14 Ar-78 C-270 Ar-78

C-1 15 Ar-82 C-271 Ar-82

C-1 16 Ar-1 17 C-272 Ar-1 17

C-1 17 Ar-134 C-273 Ar-134

C-1 18 Ar-139 C-274 Ar-139

C-1 19 Ar-150 C-275 Ar-150

C-120 Ar-172 C-276 Ar-172

C-121 Ar-74 Ar-74 C-277 Ar-74 Ar-74

C-122 Ar-78 C-278 Ar-78

C-123 Ar-82 C-279 Ar-82

C-124 Ar-1 17 C-280 Ar-1 17

C-125 Ar-134 C-281 Ar-134

C-126 Ar-139 C-282 Ar-139

C-127 Ar-150 C-283 Ar-150

C-128 Ar-172 C-284 Ar-172

C-129 Ar-78 Ar-78 C-285 Ar-78 Ar-78

C-130 Ar-82 C-286 Ar-82

C-131 Ar-1 17 C-287 Ar-1 17

C-132 Ar-134 C-288 " Ar-134 C-133 Ar-139 C-289 Ar-139

C-134 Ar-150 C-290 Ar-150

C-135 Ar-172 C-291 Ar-172

C-136 Ar-82 Ar-82 C-292 Ar-82 Ar-82

C-137 Ar-1 17 C-293 Ar-1 17

C-138 Ar-134 C-294 Ar-134

C-139 Ar-139 C-295 Ar-139

C-140 Ar-150 C-296 Ar-150

C-141 Ar-172 C-297 Ar-172

C-142 Ar-1 17 Ar-1 17 C-298 Ar-1 17 Ar-1 17

C-143 Ar-134 C-299 Ar-134

C-144 Ar-139 C-300 Ar-139

C-145 Ar-150 C-301 Ar-150

C-146 Ar-172 C-302 Ar-172

C-147 Ar-134 Ar-134 C-303 Ar-134 Ar-134

C-148 Ar-139 C-304 Ar-139

C-149 Ar-150 C-305 Ar-150

C-150 Ar-172 C-306 Ar-172

C-151 Ar-139 Ar-139 C-307 Ar-139 Ar-139

C-152 Ar-150 C-308 Ar-150

C-153 Ar-172 C-309 Ar-172

C-154 Ar-150 Ar-150 C-310 Ar-150 Ar-150

C-155 Ar-172 C-31 1 Ar-172

C-156 Ar-172 Ar-172 C-312 Ar-172 Ar-172

Furthermore preferred are compounds which correspond to the compounds C-1 to C-312 above, with the exception that they are derived from the following formulae

\

Formula (l-A-2-2-4) where Ar ^L is phenylene, preferably 1 ,4-phenylene, and where R ³¹ , Ar ^1"1 and Ar ^1-2 are specified as shown for the corresponding compounds C-1 to C-312.

Particularly preferred specific compounds are the following compounds, which conform to the formula (l-A-1 -2-1 ) below

formula (l-A-1 -2-1 ) in which R ¹¹ , R ³¹ , Ar ^1"1 and Ar ^1"2 are specified as shown in the list below (formulae Ar-1 to Ar-172 and R-1 to R-66 are as specified above):

No. R Ar ^1"1 Ar ^1"2 No. R Ar ^1"1 Ar ^1"2

C-313 R-1 H Ar-1 Ar-1 C-1093 Methyl Ar-1 Ar-1

C-314 Ar-2 C-1094 Ar-2

C-315 Ar-4 C-1095 Ar-4

C-316 Ar-5 C-1096 Ar-5

C-317 Ar-74 C-1097 Ar-74

C-318 Ar-78 C-1098 " Ar-78 C-319 Ar-82 C-1099 Ar-82

C-320 Ar-117 C-1100 Ar-117

C-321 Ar-134 C-1101 Ar-134

C-322 Ar-139 C-1102 Ar-139

C-323 Ar-150 C-1103 Ar-150

C-324 Ar-172 C-1104 Ar-172

C-325 Ar-2 Ar-2 C-1105 Ar-2 Ar-2

C-326 Ar-4 C-1106 Ar-4

C-327 Ar-5 C-1107 Ar-5

C-328 Ar-74 C-1108 Ar-74

C-329 Ar-78 C-1109 Ar-78

C-330 Ar-82 C-1110 Ar-82

C-331 Ar-117 C-1111 Ar-117

C-332 Ar-134 C-1112 Ar-134

C-333 Ar-139 C-1113 Ar-139

C-334 Ar-150 C-1114 Ar-150

C-335 Ar-172 C-1115 Ar-172

C-336 Ar-4 Ar-4 C-1116 Ar-4 Ar-4

C-337 Ar-5 C-1117 Ar-5

C-338 Ar-74 C-1118 Ar-74

C-339 Ar-78 C-1119 Ar-78

C-340 Ar-82 C-1120 Ar-82

C-341 Ar-117 C-1121 Ar-117

C-342 Ar-134 C-1122 Ar-134

C-343 Ar-139 C-1123 Ar-139

C-344 Ar-150 C-1124 Ar-150

C-345 Ar-172 C-1125 Ar-172

C-346 Ar-5 Ar-5 C-1126 Ar-5 Ar-5

C-347 Ar-74 C-1127 Ar-74

C-348 Ar-78 C-1128 Ar-78

C-349 Ar-82 C-1129 Ar-82

C-350 Ar-117 C-1130 Ar-117

C-351 Ar-134 C-1131 Ar-134

C-352 Ar-139 C-1132 Ar-139

C-353 Ar-150 C-1133 Ar-150

C-354 Ar-172 C-1134 Ar-172

C-355 Ar-74 Ar-74 C-1135 Ar-74 Ar-74

C-356 Ar-78 C-1136 Ar-78

C-357 Ar-82 C-1137 Ar-82

C-358 Ar-117 C-1138 Ar-117

C-359 Ar-134 C-1139 Ar-134

C-360 Ar-139 C-1140 Ar-139 C-361 Ar-150 C-1141 Ar-150

C-362 Ar-172 C-1142 Ar-172

C-363 Ar-78 Ar-78 C-1143 Ar-78 Ar-78

C-364 Ar-82 C-1144 Ar-82

C-365 Ar-117 C-1145 Ar-117

C-366 Ar-134 C-1146 Ar-134

C-367 Ar-139 C-1147 Ar-139

C-368 Ar-150 C-1148 Ar-150

C-369 Ar-172 C-1149 Ar-172

C-370 Ar-82 Ar-82 C-1150 Ar-82 Ar-82

C-371 Ar-117 C-1151 Ar-117

C-372 Ar-134 C-1152 Ar-134

C-373 Ar-139 C-1153 Ar-139

C-374 Ar-150 C-1154 Ar-150

C-375 Ar-172 C-1155 Ar-172

C-376 Ar-117 Ar-117 C-1156 Ar-117 Ar-117

C-377 Ar-134 C-1157 Ar-134

C-378 Ar-139 C-1158 Ar-139

C-379 Ar-150 C-1159 Ar-150

C-380 Ar-172 C-1160 Ar-172

C-381 Ar-134 Ar-134 C-1161 Ar-134 Ar-134

C-382 Ar-139 C-1162 Ar-139

C-383 Ar-150 C-1163 Ar-150

C-384 Ar-172 C-1164 Ar-172

C-385 Ar-139 Ar-139 C-1165 Ar-139 Ar-139

C-386 Ar-150 C-1166 Ar-150

C-387 Ar-172 C-1167 Ar-172

C-388 Ar-150 Ar-150 C-1168 Ar-150 Ar-150

C-389 Ar-172 C-1169 Ar-172

C-390 Ar-172 Ar-172 C-1170 Ar-172 Ar-172

C-391 F Ar-1 Ar-1 C-1171 tert-Butyl Ar-1 Ar-1

C-392 Ar-2 C-1172 Ar-2

C-393 Ar-4 C-1173 Ar-4

C-394 Ar-5 C-1174 Ar-5

C-395 Ar-74 C-1175 Ar-74

C-396 Ar-78 C-1176 Ar-78

C-397 Ar-82 C-1177 Ar-82

C-398 Ar-117 C-1178 Ar-117

C-399 Ar-134 C-1179 Ar-134

C-400 Ar-139 C-1180 Ar-139

C-401 Ar-150 C-1181 Ar-150

C-402 Ar-172 C-1182 Ar-172 C-403 Ar-2 Ar-2 C-1183 Ar-2 Ar-2

C-404 Ar-4 C-1184 Ar-4

C-405 Ar-5 C-1185 Ar-5

C-406 Ar-74 C-1186 Ar-74

C-407 Ar-78 C-1187 Ar-78

C-408 Ar-82 C-1188 Ar-82

C-409 Ar-117 C-1189 Ar-117

C-410 Ar-134 C-1190 Ar-134

C-411 Ar-139 C-1191 Ar-139

C-412 Ar-150 C-1192 Ar-150

C-413 Ar-172 C-1193 Ar-172

C-414 Ar-4 Ar-4 C-1194 Ar-4 Ar-4

C-415 Ar-5 C-1195 Ar-5

C-416 Ar-74 C-1196 Ar-74

C-417 Ar-78 C-1197 Ar-78

C-418 Ar-82 C-1198 Ar-82

C-419 Ar-117 C-1199 Ar-117

C-420 Ar-134 C-1200 Ar-134

C-421 Ar-139 C-1201 Ar-139

C-422 Ar-150 C-1202 Ar-150

C-423 Ar-172 C-1203 Ar-172

C-424 Ar-5 Ar-5 C-1204 Ar-5 Ar-5

C-425 Ar-74 C-1205 Ar-74

C-426 Ar-78 C-1206 Ar-78

C-427 Ar-82 C-1207 Ar-82

C-428 Ar-117 C-1208 Ar-117

C-429 Ar-134 C-1209 Ar-134

C-430 Ar-139 C-1210 Ar-139

C-431 Ar-150 C-1211 Ar-150

C-432 Ar-172 C-1212 Ar-172

C-433 Ar-74 Ar-74 C-1213 Ar-74 Ar-74

C-434 Ar-78 C-1214 Ar-78

C-435 Ar-82 C-1215 Ar-82

C-436 Ar-117 C-1216 Ar-117

C-437 Ar-134 C-1217 Ar-134

C-438 Ar-139 C-1218 Ar-139

C-439 Ar-150 C-1219 Ar-150

C-440 Ar-172 C-1220 Ar-172

C-441 Ar-78 Ar-78 C-1221 Ar-78 Ar-78

C-442 Ar-82 C-1222 Ar-82

C-443 Ar-117 C-1223 Ar-117

C-444 Ar-134 C-1224 Ar-134 C-445 Ar-139 C-1225 Ar-139

C-446 Ar-150 C-1226 Ar-150

C-447 Ar-172 C-1227 Ar-172

C-448 Ar-82 Ar-82 C-1228 Ar-82 Ar-82

C-449 Ar-1 17 C-1229 Ar-1 17

C-450 Ar-134 C-1230 Ar-134

C-451 Ar-139 C-1231 Ar-139

C-452 Ar-150 C-1232 Ar-150

C-453 Ar-172 C-1233 Ar-172

C-454 Ar-1 17 Ar-1 17 C-1234 Ar-1 17 Ar-1 17

C-455 Ar-134 C-1235 Ar-134

C-456 Ar-139 C-1236 Ar-139

C-457 Ar-150 C-1237 Ar-150

C-458 Ar-172 C-1238 Ar-172

C-459 Ar-134 Ar-134 C-1239 Ar-134 Ar-134

C-460 Ar-139 C-1240 Ar-139

C-461 Ar-150 C-1241 Ar-150

C-462 Ar-172 C-1242 Ar-172

C-463 Ar-139 Ar-139 C-1243 Ar-139 Ar-139

C-464 Ar-150 C-1244 Ar-150

C-465 Ar-172 C-1245 Ar-172

C-466 Ar-150 Ar-150 C-1246 Ar-150 Ar-150

C-467 Ar-172 C-1247 Ar-172

C-468 Ar-172 Ar-172 C-1248 Ar-172 Ar-172

C-469 Methyl Ar-1 Ar-1 C-1249 R-58 H Ar-1 Ar-1

C-470 Ar-2 C-1250 Ar-2

C-471 Ar-4 C-1251 Ar-4

C-472 Ar-5 C-1252 Ar-5

C-473 Ar-74 C-1253 Ar-74

C-474 Ar-78 C-1254 Ar-78

C-475 Ar-82 C-1255 Ar-82

C-476 Ar-1 17 C-1256 Ar-1 17

C-477 Ar-134 C-1257 Ar-134

C-478 Ar-139 C-1258 Ar-139

C-479 Ar-150 C-1259 Ar-150

C-480 Ar-172 C-1260 Ar-172

C-481 Ar-2 Ar-2 C-1261 Ar-2 Ar-2

C-482 Ar-4 C-1262 Ar-4

C-483 Ar-5 C-1263 Ar-5

C-484 Ar-74 C-1264 Ar-74

C-485 Ar-78 C-1265 Ar-78

C-486 Ar-82 C-1266 Ar-82 C-487 Ar-1 17 C-1267 Ar-1 17

C-488 Ar-134 C-1268 Ar-134

C-489 Ar-139 C-1269 Ar-139

C-490 Ar-150 C-1270 Ar-150

C-491 Ar-172 C-1271 Ar-172

C-492 Ar-4 Ar-4 C-1272 Ar-4 Ar-4

C-493 Ar-5 C-1273 Ar-5

C-494 Ar-74 C-1274 Ar-74

C-495 Ar-78 C-1275 Ar-78

C-496 Ar-82 C-1276 Ar-82

C-497 Ar-1 17 C-1277 Ar-1 17

C-498 Ar-134 C-1278 Ar-134

C-499 Ar-139 C-1279 Ar-139

C-500 Ar-150 C-1280 Ar-150

C-501 Ar-172 C-1281 Ar-172

C-502 Ar-5 Ar-5 C-1282 Ar-5 Ar-5

C-503 Ar-74 C-1283 Ar-74

C-504 Ar-78 C-1284 Ar-78

C-505 Ar-82 C-1285 Ar-82

C-506 Ar-1 17 C-1286 Ar-1 17

C-507 Ar-134 C-1287 Ar-134

C-508 Ar-139 C-1288 Ar-139

C-509 Ar-150 C-1289 Ar-150

C-510 Ar-172 C-1290 Ar-172

C-51 1 Ar-74 Ar-74 C-1291 Ar-74 Ar-74

C-512 Ar-78 C-1292 Ar-78

C-513 Ar-82 C-1293 Ar-82

C-514 Ar-1 17 C-1294 Ar-1 17

C-515 Ar-134 C-1295 Ar-134

C-516 Ar-139 C-1296 Ar-139

C-517 Ar-150 C-1297 Ar-150

C-518 Ar-172 C-1298 Ar-172

C-519 Ar-78 Ar-78 C-1299 Ar-78 Ar-78

C-520 Ar-82 C-1300 Ar-82

C-521 Ar-1 17 C-1301 Ar-1 17

C-522 Ar-134 C-1302 Ar-134

C-523 Ar-139 C-1303 Ar-139

C-524 Ar-150 C-1304 Ar-150

C-525 Ar-172 C-1305 Ar-172

C-526 Ar-82 Ar-82 C-1306 Ar-82 Ar-82

C-527 Ar-1 17 C-1307 Ar-1 17

C-528 " Ar-134 C-1308 " Ar-134 C-529 Ar-139 C-1309 Ar-139

C-530 Ar-150 C-1310 Ar-150

C-531 Ar-172 C-131 1 Ar-172

C-532 Ar-1 17 Ar-1 17 C-1312 Ar-1 17 Ar-1 17

C-533 Ar-134 C-1313 Ar-134

C-534 Ar-139 C-1314 Ar-139

C-535 Ar-150 C-1315 Ar-150

C-536 Ar-172 C-1316 Ar-172

C-537 Ar-134 Ar-134 C-1317 Ar-134 Ar-134

C-538 Ar-139 C-1318 Ar-139

C-539 Ar-150 C-1319 Ar-150

C-540 Ar-172 C-1320 Ar-172

C-541 Ar-139 Ar-139 C-1321 Ar-139 Ar-139

C-542 Ar-150 C-1322 Ar-150

C-543 Ar-172 C-1323 Ar-172

C-544 Ar-150 Ar-150 C-1324 Ar-150 Ar-150

C-545 Ar-172 C-1325 Ar-172

C-546 Ar-172 Ar-172 C-1326 Ar-172 Ar-172

C-547 tert-Butyl Ar-1 Ar-1 C-1327 F Ar-1 Ar-1

C-548 Ar-2 C-1328 Ar-2

C-549 Ar-4 C-1329 Ar-4

C-550 Ar-5 C-1330 Ar-5

C-551 Ar-74 C-1331 Ar-74

C-552 Ar-78 C-1332 Ar-78

C-553 Ar-82 C-1333 Ar-82

C-554 Ar-1 17 C-1334 Ar-1 17

C-555 Ar-134 C-1335 Ar-134

C-556 Ar-139 C-1336 Ar-139

C-557 Ar-150 C-1337 Ar-150

C-558 Ar-172 C-1338 Ar-172

C-559 Ar-2 Ar-2 C-1339 Ar-2 Ar-2

C-560 Ar-4 C-1340 Ar-4

C-561 Ar-5 C-1341 Ar-5

C-562 Ar-74 C-1342 Ar-74

C-563 Ar-78 C-1343 Ar-78

C-564 Ar-82 C-1344 Ar-82

C-565 Ar-1 17 C-1345 Ar-1 17

C-566 Ar-134 C-1346 Ar-134

C-567 Ar-139 C-1347 Ar-139

C-568 Ar-150 C-1348 Ar-150

C-569 Ar-172 C-1349 Ar-172

C-570 Ar-4 Ar-4 C-1350 Ar-4 Ar-4 C-571 Ar-5 C-1351 Ar-5

C-572 Ar-74 C-1352 Ar-74

C-573 Ar-78 C-1353 Ar-78

C-574 Ar-82 C-1354 Ar-82

C-575 Ar-1 17 C-1355 Ar-1 17

C-576 Ar-134 C-1356 Ar-134

C-577 Ar-139 C-1357 Ar-139

C-578 Ar-150 C-1358 Ar-150

C-579 Ar-172 C-1359 Ar-172

C-580 Ar-5 Ar-5 C-1360 Ar-5 Ar-5

C-581 Ar-74 C-1361 Ar-74

C-582 Ar-78 C-1362 Ar-78

C-583 Ar-82 C-1363 Ar-82

C-584 Ar-1 17 C-1364 Ar-1 17

C-585 Ar-134 C-1365 Ar-134

C-586 Ar-139 C-1366 Ar-139

C-587 Ar-150 C-1367 Ar-150

C-588 Ar-172 C-1368 Ar-172

C-589 Ar-74 Ar-74 C-1369 Ar-74 Ar-74

C-590 Ar-78 C-1370 Ar-78

C-591 Ar-82 C-1371 Ar-82

C-592 Ar-1 17 C-1372 Ar-1 17

C-593 Ar-134 C-1373 Ar-134

C-594 Ar-139 C-1374 Ar-139

C-595 Ar-150 C-1375 Ar-150

C-596 Ar-172 C-1376 Ar-172

C-597 Ar-78 Ar-78 C-1377 Ar-78 Ar-78

C-598 Ar-82 C-1378 Ar-82

C-599 Ar-1 17 C-1379 Ar-1 17

C-600 Ar-134 C-1380 Ar-134

C-601 Ar-139 C-1381 Ar-139

C-602 Ar-150 C-1382 Ar-150

C-603 Ar-172 C-1383 Ar-172

C-604 Ar-82 Ar-82 C-1384 Ar-82 Ar-82

C-605 Ar-1 17 C-1385 Ar-1 17

C-606 Ar-134 C-1386 Ar-134

C-607 Ar-139 C-1387 Ar-139

C-608 Ar-150 C-1388 Ar-150

C-609 Ar-172 C-1389 Ar-172

C-610 Ar-1 17 Ar-1 17 C-1390 Ar-1 17 Ar-1 17

C-61 1 Ar-134 C-1391 Ar-134

C-612 Ar-139 C-1392 Ar-139 C-613 Ar-150 C-1393 Ar-150

C-614 Ar-172 C-1394 Ar-172

C-615 Ar-134 Ar-134 C-1395 Ar-134 Ar-134

C-616 Ar-139 C-1396 Ar-139

C-617 Ar-150 C-1397 Ar-150

C-618 Ar-172 C-1398 Ar-172

C-619 Ar-139 Ar-139 C-1399 Ar-139 Ar-139

C-620 Ar-150 C-1400 Ar-150

C-621 Ar-172 C-1401 Ar-172

C-622 Ar-150 Ar-150 C-1402 Ar-150 Ar-150

C-623 Ar-172 C-1403 Ar-172

C-624 Ar-172 Ar-172 C-1404 Ar-172 Ar-172

C-625 R-2 H Ar-1 Ar-1 C-1405 Methyl Ar-1 Ar-1

C-626 Ar-2 C-1406 Ar-2

C-627 Ar-4 C-1407 Ar-4

C-628 Ar-5 C-1408 Ar-5

C-629 Ar-74 C-1409 Ar-74

C-630 Ar-78 C-1410 Ar-78

C-631 Ar-82 C-141 1 Ar-82

C-632 Ar-1 17 C-1412 Ar-1 17

C-633 Ar-134 C-1413 Ar-134

C-634 Ar-139 C-1414 Ar-139

C-635 Ar-150 C-1415 Ar-150

C-636 Ar-172 C-1416 Ar-172

C-637 Ar-2 Ar-2 C-1417 Ar-2 Ar-2

C-638 Ar-4 C-1418 Ar-4

C-639 Ar-5 C-1419 Ar-5

C-640 Ar-74 C-1420 Ar-74

C-641 Ar-78 C-1421 Ar-78

C-642 Ar-82 C-1422 Ar-82

C-643 Ar-1 17 C-1423 Ar-1 17

C-644 Ar-134 C-1424 Ar-134

C-645 Ar-139 C-1425 Ar-139

C-646 Ar-150 C-1426 Ar-150

C-647 Ar-172 C-1427 Ar-172

C-648 Ar-4 Ar-4 C-1428 Ar-4 Ar-4

C-649 Ar-5 C-1429 Ar-5

C-650 Ar-74 C-1430 Ar-74

C-651 Ar-78 C-1431 Ar-78

C-652 Ar-82 C-1432 Ar-82

C-653 Ar-1 17 C-1433 Ar-1 17

C-654 Ar-134 C-1434 Ar-134 C-655 Ar-139 C-1435 Ar-139

C-656 Ar-150 C-1436 Ar-150

C-657 Ar-172 C-1437 Ar-172

C-658 Ar-5 Ar-5 C-1438 Ar-5 Ar-5

C-659 Ar-74 C-1439 Ar-74

C-660 Ar-78 C-1440 Ar-78

C-661 Ar-82 C-1441 Ar-82

C-662 Ar-1 17 C-1442 Ar-1 17

C-663 Ar-134 C-1443 Ar-134

C-664 Ar-139 C-1444 Ar-139

C-665 Ar-150 C-1445 Ar-150

C-666 Ar-172 C-1446 Ar-172

C-667 Ar-74 Ar-74 C-1447 Ar-74 Ar-74

C-668 Ar-78 C-1448 Ar-78

C-669 Ar-82 C-1449 Ar-82

C-670 Ar-1 17 C-1450 Ar-1 17

C-671 Ar-134 C-1451 Ar-134

C-672 Ar-139 C-1452 Ar-139

C-673 Ar-150 C-1453 Ar-150

C-674 Ar-172 C-1454 Ar-172

C-675 Ar-78 Ar-78 C-1455 Ar-78 Ar-78

C-676 Ar-82 C-1456 Ar-82

C-677 Ar-1 17 C-1457 Ar-1 17

C-678 Ar-134 C-1458 Ar-134

C-679 Ar-139 C-1459 Ar-139

C-680 Ar-150 C-1460 Ar-150

C-681 Ar-172 C-1461 Ar-172

C-682 Ar-82 Ar-82 C-1462 Ar-82 Ar-82

C-683 Ar-1 17 C-1463 Ar-1 17

C-684 Ar-134 C-1464 Ar-134

C-685 Ar-139 C-1465 Ar-139

C-686 Ar-150 C-1466 Ar-150

C-687 Ar-172 C-1467 Ar-172

C-688 Ar-1 17 Ar-1 17 C-1468 Ar-1 17 Ar-1 17

C-689 Ar-134 C-1469 Ar-134

C-690 Ar-139 C-1470 Ar-139

C-691 Ar-150 C-1471 Ar-150

C-692 Ar-172 C-1472 Ar-172

C-693 Ar-134 Ar-134 C-1473 Ar-134 Ar-134

C-694 Ar-139 C-1474 Ar-139

C-695 Ar-150 C-1475 Ar-150

C-696 Ar-172 C-1476 Ar-172 C-697 Ar-139 Ar-139 C-1477 Ar-139 Ar-139

C-698 Ar-150 C-1478 Ar-150

C-699 Ar-172 C-1479 Ar-172

C-700 Ar-150 Ar-150 C-1480 Ar-150 Ar-150

C-701 Ar-172 C-1481 Ar-172

C-702 Ar-172 Ar-172 C-1482 Ar-172 Ar-172

C-703 F Ar-1 Ar-1 C-1483 tert-Butyl Ar-1 Ar-1

C-704 Ar-2 C-1484 Ar-2

C-705 Ar-4 C-1485 Ar-4

C-706 Ar-5 C-1486 Ar-5

C-707 Ar-74 C-1487 Ar-74

C-708 Ar-78 C-1488 Ar-78

C-709 Ar-82 C-1489 Ar-82

C-710 Ar-1 17 C-1490 Ar-1 17

C-71 1 Ar-134 C-1491 Ar-134

C-712 Ar-139 C-1492 Ar-139

C-713 Ar-150 C-1493 Ar-150

C-714 Ar-172 C-1494 Ar-172

C-715 Ar-2 Ar-2 C-1495 Ar-2 Ar-2

C-716 Ar-4 C-1496 Ar-4

C-717 Ar-5 C-1497 Ar-5

C-718 Ar-74 C-1498 Ar-74

C-719 Ar-78 C-1499 Ar-78

C-720 Ar-82 C-1500 Ar-82

C-721 Ar-1 17 C-1501 Ar-1 17

C-722 Ar-134 C-1502 Ar-134

C-723 Ar-139 C-1503 Ar-139

C-724 Ar-150 C-1504 Ar-150

C-725 Ar-172 C-1505 Ar-172

C-726 Ar-4 Ar-4 C-1506 Ar-4 Ar-4

C-727 Ar-5 C-1507 Ar-5

C-728 Ar-74 C-1508 Ar-74

C-729 Ar-78 C-1509 Ar-78

C-730 Ar-82 C-1510 Ar-82

C-731 Ar-1 17 C-151 1 Ar-1 17

C-732 Ar-134 C-1512 Ar-134

C-733 Ar-139 C-1513 Ar-139

C-734 Ar-150 C-1514 Ar-150

C-735 Ar-172 C-1515 Ar-172

C-736 Ar-5 Ar-5 C-1516 Ar-5 Ar-5

C-737 Ar-74 C-1517 Ar-74

C-738 Ar-78 C-1518 Ar-78 C-739 Ar-82 C-1519 Ar-82

C-740 Ar-1 17 C-1520 Ar-1 17

C-741 Ar-134 C-1521 Ar-134

C-742 Ar-139 C-1522 Ar-139

C-743 Ar-150 C-1523 Ar-150

C-744 Ar-172 C-1524 Ar-172

C-745 Ar-74 Ar-74 C-1525 Ar-74 Ar-74

C-746 Ar-78 C-1526 Ar-78

C-747 Ar-82 C-1527 Ar-82

C-748 Ar-1 17 C-1528 Ar-1 17

C-749 Ar-134 C-1529 Ar-134

C-750 Ar-139 C-1530 Ar-139

C-751 Ar-150 C-1531 Ar-150

C-752 Ar-172 C-1532 Ar-172

C-753 Ar-78 Ar-78 C-1533 Ar-78 Ar-78

C-754 Ar-82 C-1534 Ar-82

C-755 Ar-1 17 C-1535 Ar-1 17

C-756 Ar-134 C-1536 Ar-134

C-757 Ar-139 C-1537 Ar-139

C-758 Ar-150 C-1538 Ar-150

C-759 Ar-172 C-1539 Ar-172

C-760 Ar-82 Ar-82 C-1540 Ar-82 Ar-82

C-761 Ar-1 17 C-1541 Ar-1 17

C-762 Ar-134 C-1542 Ar-134

C-763 Ar-139 C-1543 Ar-139

C-764 Ar-150 C-1544 Ar-150

C-765 Ar-172 C-1545 Ar-172

C-766 Ar-1 17 Ar-1 17 C-1546 Ar-1 17 Ar-1 17

C-767 Ar-134 C-1547 Ar-134

C-768 Ar-139 C-1548 Ar-139

C-769 Ar-150 C-1549 Ar-150

C-770 Ar-172 C-1550 Ar-172

C-771 Ar-134 Ar-134 C-1551 Ar-134 Ar-134

C-772 Ar-139 C-1552 Ar-139

C-773 Ar-150 C-1553 Ar-150

C-774 Ar-172 C-1554 Ar-172

C-775 Ar-139 Ar-139 C-1555 Ar-139 Ar-139

C-776 Ar-150 C-1556 Ar-150

C-777 Ar-172 C-1557 Ar-172

C-778 Ar-150 Ar-150 C-1558 Ar-150 Ar-150

C-779 Ar-172 C-1559 Ar-172

C-780 Ar-172 Ar-172 C-1560 Ar-172 Ar-172 C-781 Methyl Ar-1 Ar-1 C-1561 R-66 H Ar-1 Ar-1

C-782 Ar-2 C-1562 Ar-2

C-783 Ar-4 C-1563 Ar-4

C-784 Ar-5 C-1564 Ar-5

C-785 Ar-74 C-1565 Ar-74

C-786 Ar-78 C-1566 Ar-78

C-787 Ar-82 C-1567 Ar-82

C-788 Ar-1 17 C-1568 Ar-1 17

C-789 Ar-134 C-1569 Ar-134

C-790 Ar-139 C-1570 Ar-139

C-791 Ar-150 C-1571 Ar-150

C-792 Ar-172 C-1572 Ar-172

C-793 Ar-2 Ar-2 C-1573 Ar-2 Ar-2

C-794 Ar-4 C-1574 Ar-4

C-795 Ar-5 C-1575 Ar-5

C-796 Ar-74 C-1576 Ar-74

C-797 Ar-78 C-1577 Ar-78

C-798 Ar-82 C-1578 Ar-82

C-799 Ar-1 17 C-1579 Ar-1 17

C-800 Ar-134 C-1580 Ar-134

C-801 Ar-139 C-1581 Ar-139

C-802 Ar-150 C-1582 Ar-150

C-803 Ar-172 C-1583 Ar-172

C-804 Ar-4 Ar-4 C-1584 Ar-4 Ar-4

C-805 Ar-5 C-1585 Ar-5

C-806 Ar-74 C-1586 Ar-74

C-807 Ar-78 C-1587 Ar-78

C-808 Ar-82 C-1588 Ar-82

C-809 Ar-1 17 C-1589 Ar-1 17

C-810 Ar-134 C-1590 Ar-134

C-81 1 Ar-139 C-1591 Ar-139

C-812 Ar-150 C-1592 Ar-150

C-813 Ar-172 C-1593 Ar-172

C-814 Ar-5 Ar-5 C-1594 Ar-5 Ar-5

C-815 Ar-74 C-1595 Ar-74

C-816 Ar-78 C-1596 Ar-78

C-817 Ar-82 C-1597 Ar-82

C-818 Ar-1 17 C-1598 Ar-1 17

C-819 Ar-134 C-1599 Ar-134

C-820 Ar-139 C-1600 Ar-139

C-821 Ar-150 C-1601 Ar-150

C-822 Ar-172 C-1602 Ar-172 C-823 Ar-74 Ar-74 C-1603 Ar-74 Ar-74

C-824 Ar-78 C-1604 Ar-78

C-825 Ar-82 C-1605 Ar-82

C-826 Ar-1 17 C-1606 Ar-1 17

C-827 Ar-134 C-1607 Ar-134

C-828 Ar-139 C-1608 Ar-139

C-829 Ar-150 C-1609 Ar-150

C-830 Ar-172 C-1610 Ar-172

C-831 Ar-78 Ar-78 C-161 1 Ar-78 Ar-78

C-832 Ar-82 C-1612 Ar-82

C-833 Ar-1 17 C-1613 Ar-1 17

C-834 Ar-134 C-1614 Ar-134

C-835 Ar-139 C-1615 Ar-139

C-836 Ar-150 C-1616 Ar-150

C-837 Ar-172 C-1617 Ar-172

C-838 Ar-82 Ar-82 C-1618 Ar-82 Ar-82

C-839 Ar-1 17 C-1619 Ar-1 17

C-840 Ar-134 C-1620 Ar-134

C-841 Ar-139 C-1621 Ar-139

C-842 Ar-150 C-1622 Ar-150

C-843 Ar-172 C-1623 Ar-172

C-844 Ar-1 17 Ar-1 17 C-1624 Ar-1 17 Ar-1 17

C-845 Ar-134 C-1625 Ar-134

C-846 Ar-139 C-1626 Ar-139

C-847 Ar-150 C-1627 Ar-150

C-848 Ar-172 C-1628 Ar-172

C-849 Ar-134 Ar-134 C-1629 Ar-134 Ar-134

C-850 Ar-139 C-1630 Ar-139

C-851 Ar-150 C-1631 Ar-150

C-852 Ar-172 C-1632 Ar-172

C-853 Ar-139 Ar-139 C-1633 Ar-139 Ar-139

C-854 Ar-150 C-1634 Ar-150

C-855 Ar-172 C-1635 Ar-172

C-856 Ar-150 Ar-150 C-1636 Ar-150 Ar-150

C-857 Ar-172 C-1637 Ar-172

C-858 Ar-172 Ar-172 C-1638 Ar-172 Ar-172

C-859 tert-Butyl Ar-1 Ar-1 C-1639 F Ar-1 Ar-1

C-860 Ar-2 C-1640 Ar-2

C-861 Ar-4 C-1641 Ar-4

C-862 Ar-5 C-1642 Ar-5

C-863 Ar-74 C-1643 Ar-74

C-864 Ar-78 C-1644 Ar-78 C-865 Ar-82 C-1645 Ar-82

C-866 Ar-1 17 C-1646 Ar-1 17

C-867 Ar-134 C-1647 Ar-134

C-868 Ar-139 C-1648 Ar-139

C-869 Ar-150 C-1649 Ar-150

C-870 Ar-172 C-1650 Ar-172

C-871 Ar-2 Ar-2 C-1651 Ar-2 Ar-2

C-872 Ar-4 C-1652 Ar-4

C-873 Ar-5 C-1653 Ar-5

C-874 Ar-74 C-1654 Ar-74

C-875 Ar-78 C-1655 Ar-78

C-876 Ar-82 C-1656 Ar-82

C-877 Ar-1 17 C-1657 Ar-1 17

C-878 Ar-134 C-1658 Ar-134

C-879 Ar-139 C-1659 Ar-139

C-880 Ar-150 C-1660 Ar-150

C-881 Ar-172 C-1661 Ar-172

C-882 Ar-4 Ar-4 C-1662 Ar-4 Ar-4

C-883 Ar-5 C-1663 Ar-5

C-884 Ar-74 C-1664 Ar-74

C-885 Ar-78 C-1665 Ar-78

C-886 Ar-82 C-1666 Ar-82

C-887 Ar-1 17 C-1667 Ar-1 17

C-888 Ar-134 C-1668 Ar-134

C-889 Ar-139 C-1669 Ar-139

C-890 Ar-150 C-1670 Ar-150

C-891 Ar-172 C-1671 Ar-172

C-892 Ar-5 Ar-5 C-1672 Ar-5 Ar-5

C-893 Ar-74 C-1673 Ar-74

C-894 Ar-78 C-1674 Ar-78

C-895 Ar-82 C-1675 Ar-82

C-896 Ar-1 17 C-1676 Ar-1 17

C-897 Ar-134 C-1677 Ar-134

C-898 Ar-139 C-1678 Ar-139

C-899 Ar-150 C-1679 Ar-150

C-900 Ar-172 C-1680 Ar-172

C-901 Ar-74 Ar-74 C-1681 Ar-74 Ar-74

C-902 Ar-78 C-1682 Ar-78

C-903 Ar-82 C-1683 Ar-82

C-904 Ar-1 17 C-1684 Ar-1 17

C-905 Ar-134 C-1685 Ar-134

C-906 Ar-139 C-1686 Ar-139 C-907 Ar-150 C-1687 Ar-150

C-908 Ar-172 C-1688 Ar-172

C-909 Ar-78 Ar-78 C-1689 Ar-78 Ar-78

C-910 Ar-82 C-1690 Ar-82

C-91 1 Ar-1 17 C-1691 Ar-1 17

C-912 Ar-134 C-1692 Ar-134

C-913 Ar-139 C-1693 Ar-139

C-914 Ar-150 C-1694 Ar-150

C-915 Ar-172 C-1695 Ar-172

C-916 Ar-82 Ar-82 C-1696 Ar-82 Ar-82

C-917 Ar-1 17 C-1697 Ar-1 17

C-918 Ar-134 C-1698 Ar-134

C-919 Ar-139 C-1699 Ar-139

C-920 Ar-150 C-1700 Ar-150

C-921 Ar-172 C-1701 Ar-172

C-922 Ar-1 17 Ar-1 17 C-1702 Ar-1 17 Ar-1 17

C-923 Ar-134 C-1703 Ar-134

C-924 Ar-139 C-1704 Ar-139

C-925 Ar-150 C-1705 Ar-150

C-926 Ar-172 C-1706 Ar-172

C-927 Ar-134 Ar-134 C-1707 Ar-134 Ar-134

C-928 Ar-139 C-1708 Ar-139

C-929 Ar-150 C-1709 Ar-150

C-930 Ar-172 C-1710 Ar-172

C-931 Ar-139 Ar-139 C-171 1 Ar-139 Ar-139

C-932 Ar-150 C-1712 Ar-150

C-933 Ar-172 C-1713 Ar-172

C-934 Ar-150 Ar-150 C-1714 Ar-150 Ar-150

C-935 Ar-172 C-1715 Ar-172

C-936 Ar-172 Ar-172 C-1716 Ar-172 Ar-172

C-937 R-21 H Ar-1 Ar-1 C-1717 Methyl Ar-1 Ar-1

C-938 Ar-2 C-1718 Ar-2

C-939 Ar-4 C-1719 Ar-4

C-940 Ar-5 C-1720 Ar-5

C-941 Ar-74 C-1721 Ar-74

C-942 Ar-78 C-1722 Ar-78

C-943 Ar-82 C-1723 Ar-82

C-944 Ar-1 17 C-1724 Ar-1 17

C-945 Ar-134 C-1725 Ar-134

C-946 Ar-139 C-1726 Ar-139

C-947 Ar-150 C-1727 Ar-150

C-948 " Ar-172 C-1728 " Ar-172 C-949 Ar-2 Ar-2 C-1729 Ar-2 Ar-2

C-950 Ar-4 C-1730 Ar-4

C-951 Ar-5 C-1731 Ar-5

C-952 Ar-74 C-1732 Ar-74

C-953 Ar-78 C-1733 Ar-78

C-954 Ar-82 C-1734 Ar-82

C-955 Ar-1 17 C-1735 Ar-1 17

C-956 Ar-134 C-1736 Ar-134

C-957 Ar-139 C-1737 Ar-139

C-958 Ar-150 C-1738 Ar-150

C-959 Ar-172 C-1739 Ar-172

C-960 Ar-4 Ar-4 C-1740 Ar-4 Ar-4

C-961 Ar-5 C-1741 Ar-5

C-962 Ar-74 C-1742 Ar-74

C-963 Ar-78 C-1743 Ar-78

C-964 Ar-82 C-1744 Ar-82

C-965 Ar-1 17 C-1745 Ar-1 17

C-966 Ar-134 C-1746 Ar-134

C-967 Ar-139 C-1747 Ar-139

C-968 Ar-150 C-1748 Ar-150

C-969 Ar-172 C-1749 Ar-172

C-970 Ar-5 Ar-5 C-1750 Ar-5 Ar-5

C-971 Ar-74 C-1751 Ar-74

C-972 Ar-78 C-1752 Ar-78

C-973 Ar-82 C-1753 Ar-82

C-974 Ar-1 17 C-1754 Ar-1 17

C-975 Ar-134 C-1755 Ar-134

C-976 Ar-139 C-1756 Ar-139

C-977 Ar-150 C-1757 Ar-150

C-978 Ar-172 C-1758 Ar-172

C-979 Ar-74 Ar-74 C-1759 Ar-74 Ar-74

C-980 Ar-78 C-1760 Ar-78

C-981 Ar-82 C-1761 Ar-82

C-982 Ar-1 17 C-1762 Ar-1 17

C-983 Ar-134 C-1763 Ar-134

C-984 Ar-139 C-1764 Ar-139

C-985 Ar-150 C-1765 Ar-150

C-986 Ar-172 C-1766 Ar-172

C-987 Ar-78 Ar-78 C-1767 Ar-78 Ar-78

C-988 Ar-82 C-1768 Ar-82

C-989 Ar-1 17 C-1769 Ar-1 17

C-990 Ar-134 C-1770 Ar-134 C-991 Ar-139 C-1771 Ar-139

C-992 Ar-150 C-1772 Ar-150

C-993 Ar-172 C-1773 Ar-172

C-994 Ar-82 Ar-82 C-1774 Ar-82 Ar-82

C-995 Ar-1 17 C-1775 Ar-1 17

C-996 Ar-134 C-1776 Ar-134

C-997 Ar-139 C-1777 Ar-139

C-998 Ar-150 C-1778 Ar-150

C-999 Ar-172 C-1779 Ar-172

C-1000 Ar-1 17 Ar-1 17 C-1780 Ar-1 17 Ar-1 17

C-1001 Ar-134 C-1781 Ar-134

C-1002 Ar-139 C-1782 Ar-139

C-1003 Ar-150 C-1783 Ar-150

C-1004 Ar-172 C-1784 Ar-172

C-1005 Ar-134 Ar-134 C-1785 Ar-134 Ar-134

C-1006 Ar-139 C-1786 Ar-139

C-1007 Ar-150 C-1787 Ar-150

C-1008 Ar-172 C-1788 Ar-172

C-1009 Ar-139 Ar-139 C-1789 Ar-139 Ar-139

C-1010 Ar-150 C-1790 Ar-150

C-101 1 Ar-172 C-1791 Ar-172

C-1012 Ar-150 Ar-150 C-1792 Ar-150 Ar-150

C-1013 Ar-172 C-1793 Ar-172

C-1014 Ar-172 Ar-172 C-1794 Ar-172 Ar-172

C-1015 F Ar-1 Ar-1 C-1795 tert-Butyl Ar-1 Ar-1

C-1016 Ar-2 C-1796 Ar-2

C-1017 Ar-4 C-1797 Ar-4

C-1018 Ar-5 C-1798 Ar-5

C-1019 Ar-74 C-1799 Ar-74

C-1020 Ar-78 C-1800 Ar-78

C-1021 Ar-82 C-1801 Ar-82

C-1022 Ar-1 17 C-1802 Ar-1 17

C-1023 Ar-134 C-1803 Ar-134

C-1024 Ar-139 C-1804 Ar-139

C-1025 Ar-150 C-1805 Ar-150

C-1026 Ar-172 C-1806 Ar-172

C-1027 Ar-2 Ar-2 C-1807 Ar-2 Ar-2

C-1028 Ar-4 C-1808 Ar-4

C-1029 Ar-5 C-1809 Ar-5

C-1030 Ar-74 C-1810 Ar-74

C-1031 Ar-78 C-181 1 Ar-78

C-1032 Ar-82 C-1812 Ar-82 C-1033 Ar-1 17 C-1813 Ar-1 17

C-1034 Ar-134 C-1814 Ar-134

C-1035 Ar-139 C-1815 Ar-139

C-1036 Ar-150 C-1816 Ar-150

C-1037 Ar-172 C-1817 Ar-172

C-1038 Ar-4 Ar-4 C-1818 Ar-4 Ar-4

C-1039 Ar-5 C-1819 Ar-5

C-1040 Ar-74 C-1820 Ar-74

C-1041 Ar-78 C-1821 Ar-78

C-1042 Ar-82 C-1822 Ar-82

C-1043 Ar-1 17 C-1823 Ar-1 17

C-1044 Ar-134 C-1824 Ar-134

C-1045 Ar-139 C-1825 Ar-139

C-1046 Ar-150 C-1826 Ar-150

C-1047 Ar-172 C-1827 Ar-172

C-1048 Ar-5 Ar-5 C-1828 Ar-5 Ar-5

C-1049 Ar-74 C-1829 Ar-74

C-1050 Ar-78 C-1830 Ar-78

C-1051 Ar-82 C-1831 Ar-82

C-1052 Ar-1 17 C-1832 Ar-1 17

C-1053 Ar-134 C-1833 Ar-134

C-1054 Ar-139 C-1834 Ar-139

C-1055 Ar-150 C-1835 Ar-150

C-1056 Ar-172 C-1836 Ar-172

C-1057 Ar-74 Ar-74 C-1837 Ar-74 Ar-74

C-1058 Ar-78 C-1838 Ar-78

C-1059 Ar-82 C-1839 Ar-82

C-1060 Ar-1 17 C-1840 Ar-1 17

C-1061 Ar-134 C-1841 Ar-134

C-1062 Ar-139 C-1842 Ar-139

C-1063 Ar-150 C-1843 Ar-150

C-1064 Ar-172 C-1844 Ar-172

C-1065 Ar-78 Ar-78 C-1845 Ar-78 Ar-78

C-1066 Ar-82 C-1846 Ar-82

C-1067 Ar-1 17 C-1847 Ar-1 17

C-1068 Ar-134 C-1848 Ar-134

C-1069 Ar-139 C-1849 Ar-139

C-1070 Ar-150 C-1850 Ar-150

C-1071 Ar-172 C-1851 Ar-172

C-1072 Ar-82 Ar-82 C-1852 Ar-82 Ar-82

C-1073 Ar-1 17 C-1853 Ar-1 17

C-1074 Ar-134 C-1854 Ar-134 C-1075 Ar-139 C-1855 Ar-139

C-1076 Ar-150 C-1856 Ar-150

C-1077 Ar-172 C-1857 Ar-172

C-1078 Ar-1 17 Ar-1 17 C-1858 Ar-1 17 Ar-1 17

C-1079 Ar-134 C-1859 Ar-134

C-1080 Ar-139 C-1860 Ar-139

C-1081 Ar-150 C-1861 Ar-150

C-1082 Ar-172 C-1862 Ar-172

C-1083 Ar-134 Ar-134 C-1863 Ar-134 Ar-134

C-1084 Ar-139 C-1864 Ar-139

C-1085 Ar-150 C-1865 Ar-150

C-1086 Ar-172 C-1866 Ar-172

C-1087 Ar-139 Ar-139 C-1867 Ar-139 Ar-139

C-1088 Ar-150 C-1868 Ar-150

C-1089 Ar-172 C-1869 Ar-172

C-1090 Ar-150 Ar-150 C-1870 Ar-150 Ar-150

C-1091 Ar-172 C-1871 Ar-172

C-1092 Ar-172 Ar-172 C-1872 Ar-172 Ar-172

Furthermore preferred are compounds which correspond to the compounds C-313 to C-1872 above, with the exception that they are derived from the following formula

Formula (l-A-1 -2-2) where Ar ^L is phenylene, preferably 1 ,4-phenylene, and where R ¹¹ , R ³¹ , Ar ^1-1 and Ar ^1"2 are specified as shown for the corresponding compounds C-313 to C-1872. Preferred compounds according to formula (I) are shown in the following table:

(16) (17) (18)

(21 )

(25) (26) (27)

(28) (29) (30)

(80) (81)

(82) (83) (84)

(85) (86) (87)

(88) (89) (90)

(91) (92) (93)

The compounds according to the present application are prepared by using standard methods known in the art of organic synthesis, such as metal catalysed coupling reactions, in particular Suzuki reactions and Buchwald reactions, nucleophilic addition reactions of metallated aryl derivatives to carbonyl groups, and acid-catalysed cyclisation reactions.

According to a preferred synthesis process, a biphenyl derivative which is substituted with the three reactive groups X ¹ to X ³ , where X ¹ is present in the position ortho to the phenyl-phenyl bond, is selectively metallated, preferably with Li or Mg, in the position of X ¹ . In a second step, the metallated biphenyl derivative is reacted with a fluorenone derivative in a nucleophilic addition reaction. The formed intermediate having the tertiary hydroxyl group is cyclized under acidic conditions to the spirobifluorene, which bears the two reactive groups X ² and X ³ .

Scheme 1

The obtained compounds are then further reacted in the positions of their groups X ² and X ³ , so that an optionally bridged diarylamine group, optionally linked via a spacer group, is present in the position of the group X ² , and an optionally bridged diarylamine group, optionally liked via a spacer group, or an aryl group, or a heteroaryl group, is present in the position of the group X ³ . This is achieved with coupling reactions, carried out in sequential or in parallel manner, which are selected from Suzuki reactions with aryl or heteroaryl derivatives and Buchwald reactions with optionally bridged diaryl amine derivatives. In the case of parallel coupling reactions, two optionally bridged diarylamine groups can be introduced in the positions of the groups X ² and X ³ by Buchwald reaction. In the case where sequential coupling reactions selected from Buchwald reactions and Suzuki reactions are carried out, one after the other, the first reaction takes place at the position of the group X ² and X ³ which has the higher reactivity, and the second reaction takes place at the position of the group X ² and X ³ which has the lower reactivity.

As a result of the above-mentioned reactions, compounds according to formula (I) of the present application are obtained. A further embodiment of the present invention is therefore a process for preparation of a compound according to formula (I), characterized in that it comprises the reactions steps

1 ) metallation of a biphenyl derivative which has one reactive group in a position which is ortho to the phenyl-phenyl bond, and which bears two additional reactive groups in other positions, where the metallation takes place in the position which is ortho to the phenyl-phenyl bond;

2) addition of the metallated biphenyl derivative to a fluorenone derivative;

3) cyclisation of the resulting addition product to a spirobifluorene derivative, where the cyclisation takes place under acidic conditions or with a Lewis acid, and where the spirobifluorene derivative bears two reactive groups; and

4) coupling of the spirobifluorene derivative with groups selected from aromatic ring systems, heteroaromatic ring systems and amine groups, in the positions of the two reactive groups.

The metallation of step 1 ) is preferably a lithiation or a Grignard reaction.

The reactive group is preferably a halogen group, more preferably CI or Br.

The coupling reaction of step 4) is preferably selected from a Buchwald reaction in the case of coupling with an amine group, and the coupling reaction is preferably selected from a Suzuki reaction in the case of coupling with an aromatic ring system or heteroaromatic ring system.

Steps 1 ) to 4) are preferably carried out in their numeric sequence.

Furthermore, preferably, step 2) is carried out directly after step 1 ), and step 3) is carried out directly after step 2), and step 4) is carried out directly after step 3). "Directly" means in this regard that no chemical reactions are carried out in between the reaction steps. The above-described compounds, especially compounds substituted by reactive leaving groups, such as bromine, iodine, chlorine, boronic acid or boronic ester, may find use as monomers for production of corresponding oligomers, dendrimers or polymers. Suitable reactive leaving groups are, for example, bromine, iodine, chlorine, boronic acids, boronic esters, amines, alkenyl or alkynyl groups having a terminal C-C double bond or C- C triple bond, oxiranes, oxetanes, groups which enter into a cycloaddition, for example a 1 ,3-dipolar cycloaddition, for example dienes or azides, carboxylic acid derivatives, alcohols and silanes.

The invention therefore further provides oligomers, polymers or dendrimers containing one or more compounds of formula (I), wherein the bond(s) to the polymer, oligomer or dendrimer may be localized at any desired positions substituted by R ¹ , R ² , R ³ or R ⁴ in formula (I). According to the linkage of the compound of formula (I), the compound is part of a side chain of the oligomer or polymer or part of the main chain. An oligomer in the context of this invention is understood to mean a compound formed from at least three monomer units. A polymer in the context of the invention is understood to mean a compound formed from at least ten monomer units. The polymers, oligomers or dendrimers of the invention may be conjugated, partly conjugated or nonconjugated. The oligomers or polymers of the invention may be linear, branched or dendritic. In the structures having linear linkage, the units of formula (I) may be joined directly to one another, or they may be joined to one another via a bivalent group, for example via a substituted or unsubstituted alkylene group, via a heteroatom or via a bivalent aromatic or heteroaromatic group. In branched and dendritic structures, it is possible, for example, for three or more units of formula (I) to be joined via a trivalent or higher-valency group, for example via a trivalent or higher-valency aromatic or heteroaromatic group, to give a branched or dendritic oligomer or polymer.

For the repeat units of formula (I) in oligomers, dendrimers and polymers, the same preferences apply as described above for compounds of formula (I)- For preparation of the oligomers or polymers, the monomers of the invention are homopolymerized or copolymerized with further monomers. Suitable and preferred comonomers are chosen from fluorenes (for example according to EP 842208 or WO 2000/22026), spirobifluorenes (for example according to EP 707020, EP 894107 or WO 2006/061 181 ), paraphenylenes (for example according to WO 1992/18552), carbazoles (for example according to WO 2004/070772 or WO 2004/1 13468), thiophenes (for example according to EP 1028136), dihydrophenanthrenes (for example according to WO 2005/014689 or WO 2007/006383), cis- and trans-indenofluorenes (for example according to WO 2004/041901 or WO

2004/1 13412), ketones (for example according to WO 2005/040302), phenanthrenes (for example according to WO 2005/104264 or WO

2007/017066) or else a plurality of these units. The polymers, oligomers and dendrimers typically contain still further units, for example emitting (fluorescent or phosphorescent) units, for example vinyltriarylamines (for example according to WO 2007/068325) or phosphorescent metal complexes (for example according to WO 2006/003000), and/or charge transport units, especially those based on triarylamines. The polymers and oligomers of the invention are generally prepared by polymerization of one or more monomer types, of which at least one monomer leads to repeat units of the formula (I) in the polymer. Suitable polymerization reactions are known to those skilled in the art and are described in the literature. Particularly suitable and preferred

polymerization reactions which lead to formation of C-C or C-N bonds are the Suzuki polymerization, the Yamamoto polymerization, the Stille polymerization and the Hartwig-Buchwald polymerization.

For the processing of the compounds of the invention from a liquid phase, for example by spin-coating or by printing methods, formulations of the compounds of the invention are required. These formulations may, for example, be solutions, dispersions or emulsions. For this purpose, it may be preferable to use mixtures of two or more solvents. Suitable and preferred solvents are, for example, toluene, anisole, o-, m- or p-xylene, methyl benzoate, mesitylene, tetralin, veratrole, THF, methyl-THF, THP, chlorobenzene, dioxane, phenoxytoluene, especially 3-phenoxytoluene, (-)- fenchone, 1 ,2,3,5-tetramethylbenzene, 1 ,2,4,5-tetramethylbenzene, 1 - methylnaphthalene, 2-methylbenzothiazole, 2-phenoxyethanol, 2- pyrrolidinone, 3-methylanisole, 4-methylanisole, 3,4-dimethylanisole, 3,5- dimethylanisole, acetophenone, a-terpineol, benzothiazole, butyl benzoate, cumene, cyclohexanol, cyclohexanone, cyclohexylbenzene, decalin, dodecylbenzene, ethyl benzoate, indane, methyl benzoate, NMP, p- cymene, phenetole, 1 ,4-diisopropylbenzene, dibenzyl ether, diethylene glycol butyl methyl ether, triethylene glycol butyl methyl ether, diethylene glycol dibutyl ether, triethylene glycol dimethyl ether, diethylene glycol monobutyl ether, tripropylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, 2-isopropylnaphthalene, pentylbenzene, hexylbenzene, heptylbenzene, octylbenzene, 1 ,1 -bis(3,4-dimethylphenyl)ethane or mixtures of these solvents. The invention therefore further provides a formulation, especially a solution, dispersion or emulsion, comprising at least one compound of formula (I) and at least one solvent, preferably an organic solvent. The way in which such solutions can be prepared is known to those skilled in the art and is described, for example, in WO 2002/072714, WO 2003/019694 and the literature cited therein.

The compounds of the invention are suitable for use in electronic devices, especially in organic electroluminescent devices (OLEDs). Depending on the substitution, the compounds are used in different functions and layers.

The invention therefore further provides for the use of the compound of formula (I) in an electronic device. This electronic device is preferably selected from the group consisting of organic integrated circuits (OICs), organic field-effect transistors (OFETs), organic thin-film transistors

(OTFTs), organic light-emitting transistors (OLETs), organic solar cells

(OSCs), organic optical detectors, organic photoreceptors, organic field- quench devices (OFQDs), organic light-emitting electrochemical cells (OLECs), organic laser diodes (O-lasers) and more preferably organic electroluminescent devices (OLEDs). The invention further provides, as already set out above, an electronic device comprising at least one compound of formula (I). This electronic device is preferably selected from the abovementioned devices. It is more preferably an organic electroluminescent device (OLED) comprising anode, cathode and at least one emitting layer, characterized in that at least one organic layer, which may be an emitting layer, a hole transport layer or another layer, preferably an emitting layer or a hole transport layer, particularly preferably a hole transport layer, comprises at least one compound of formula (I).

Apart from the cathode, anode and emitting layer, the organic

electroluminescent device may also comprise further layers. These are selected, for example, from in each case one or more hole injection layers, hole transport layers, hole blocking layers, electron transport layers, electron injection layers, electron blocking layers, exciton blocking layers, interlayers, charge generation layers (IDMC 2003, Taiwan; Session 21 OLED (5), T. Matsumoto, T. Nakada, J. Endo, K. Mori, N. Kawamura, A. Yokoi, J. Kido, Multiphoton Organic EL Device Having Charge Generation Layer) and/or organic or inorganic p/n junctions.

The sequence of the layers of the organic electroluminescent device comprising the compound of the formula (I) is preferably as follows:

anode-hole injection layer-hole transport layer-optionally further hole transport layer(s)-optionally electron blocking layer-emitting layer-optionally hole blocking layer-electron transport layer-electron injection layer-cathode. It is additionally possible for further layers to be present in the OLED.

The organic electroluminescent device of the invention may contain two or more emitting layers. More preferably, these emission layers in this case have several emission maxima between 380 nm and 750 nm overall, such that the overall result is white emission; in other words, various emitting compounds which may fluoresce or phosphoresce and which emit blue, green, yellow, orange or red light are used in the emitting layers. Especially preferred are three-layer systems, i.e. systems having three emitting layers, where the three layers show blue, green and orange or red emission (for the basic construction see, for example, WO 2005/01 1013). The compounds of the invention are preferably present in the hole transport layer, hole injection layer or electron blocking layer, most preferably in the electron blocking layer.

It is preferable in accordance with the invention when the compound of formula (I) is used in an electronic device comprising one or more phosphorescent emitting compounds. In this case, the compound may be present in different layers, preferably in a hole transport layer, an electron blocking layer, a hole injection layer or in an emitting layer.

The term "phosphorescent emitting compounds" typically encompasses compounds where the emission of light is effected through a spin-forbidden transition, for example a transition from an excited triplet state or a state having a higher spin quantum number, for example a quintet state.

Suitable phosphorescent emitting compounds (= triplet emitters) are especially compounds which, when suitably excited, emit light, preferably in the visible region, and also contain at least one atom of atomic number greater than 20, preferably greater than 38, and less than 84, more preferably greater than 56 and less than 80. Preference is given to using, as phosphorescent emitting compounds, compounds containing copper, molybdenum, tungsten, rhenium, ruthenium, osmium, rhodium, iridium, palladium, platinum, silver, gold or europium, especially compounds containing iridium, platinum or copper. In the context of the present invention, all luminescent iridium, platinum or copper complexes are considered to be phosphorescent emitting compounds.

Examples of the above-described emitting compounds can be found in applications WO 00/70655, WO 01/41512, WO 02/02714, WO 02/15645,

EP 1 191613, EP 1 191612, EP 1 191614, WO 05/033244, WO 05/019373 and US 2005/0258742. In general, all phosphorescent complexes as used for phosphorescent OLEDs according to the prior art and as known to those skilled in the art in the field of organic electroluminescent devices are suitable. It is also possible for the person skilled in the art, without exercising inventive skill, to use further phosphorescent complexes in combination with the compounds of formula (I) in organic electroluminescent devices. Further examples are listed in a table which follows. It is also possible in accordance with the invention to use the compound of formula (I) in an electronic device comprising one or more fluorescent emitting compounds.

In a preferred embodiment of the invention, the compounds of formula (I) are used as hole-transporting material. In that case, the compounds are preferably present in a hole transport layer, an electron blocking layer or a hole injection layer. Particular preference is given to use in an electron blocking layer. A hole transport layer according to the present application is a layer having a hole-transporting function between the anode and emitting layer.

Hole injection layers and electron blocking layers are understood in the context of the present application to be specific embodiments of hole transport layers. A hole injection layer, in the case of a plurality of hole transport layers between the anode and emitting layer, is a hole transport layer which directly adjoins the anode or is separated therefrom only by a single coating of the anode. An electron blocking layer, in the case of a plurality of hole transport layers between the anode and emitting layer, is that hole transport layer which directly adjoins the emitting layer on the anode side. Preferably, the OLED of the invention comprises two, three or four hole-transporting layers between the anode and emitting layer, at least one of which preferably contains a compound of formula (I), and more preferably exactly one or two contain a compound of formula (I).

If the compound of formula (I) is used as hole transport material in a hole transport layer, a hole injection layer or an electron blocking layer, the compound can be used as pure material, i.e. in a proportion of 100%, in the hole transport layer, or it can be used in combination with one or more further compounds. In a preferred embodiment, the organic layer comprising the compound of the formula (I) then additionally contains one or more p-dopants. p-Dopants used according to the present invention are preferably those organic electron acceptor compounds capable of oxidizing one or more of the other compounds in the mixture.

Particularly preferred embodiments of p-dopants are the compounds disclosed in WO 201 1/073149, EP 1968131 , EP 2276085, EP 2213662, EP 1722602, EP 2045848, DE 102007031220, US 8044390, US 8057712, WO 2009/003455, WO 2010/094378, WO 201 1/120709, US

2010/0096600, WO 2012/095143 and DE 102012209523.

Particularly preferred p-dopants are quinodimethane compounds, azaindenofluorenediones, azaphenalenes, azatriphenylenes, I2, metal halides, preferably transition metal halides, metal oxides, preferably metal oxides containing at least one transition metal or a metal of main group 3, and transition metal complexes, preferably complexes of Cu, Co, Ni, Pd and Pt with ligands containing at least one oxygen atom as bonding site. Preference is further given to transition metal oxides as dopants, preferably oxides of rhenium, molybdenum and tungsten, more preferably Re2O ₇ ,

The p-dopants are preferably in substantially homogeneous distribution in the p-doped layers. This can be achieved, for example, by coevaporation of the p-dopant and the hole transport material matrix.

Preferred p-dopants are especially the following compounds:

In a further preferred embodiment of the invention, the compound of formula (I) is used as hole transport material in combination with a hexaazatriphenylene derivative as described in US 2007/0092755. Particular preference is given here to using the hexaazatriphenylene derivative in a separate layer. ln a further embodiment of the present invention, the compound of the formula (I) is used in an emitting layer as matrix material in combination with one or more emitting compounds, preferably phosphorescent emitting compounds.

The proportion of the matrix material in the emitting layer in this case is between 50.0% and 99.9% by volume, preferably between 80.0% and 99.5% by volume, and more preferably between 92.0% and 99.5% by volume for fluorescent emitting layers and between 85.0% and 97.0% by volume for phosphorescent emitting layers.

Correspondingly, the proportion of the emitting compound is between 0.1 % and 50.0% by volume, preferably between 0.5% and 20.0% by volume, and more preferably between 0.5% and 8.0% by volume for fluorescent emitting layers and between 3.0% and 15.0% by volume for

phosphorescent emitting layers.

An emitting layer of an organic electroluminescent device may also comprise systems comprising a plurality of matrix materials (mixed matrix systems) and/or a plurality of emitting compounds. In this case too, the emitting compounds are generally those compounds having the smaller proportion in the system and the matrix materials are those compounds having the greater proportion in the system. In individual cases, however, the proportion of a single matrix material in the system may be less than the proportion of a single emitting compound.

It is preferable that the compounds of formula (I) are used as a component of mixed matrix systems. The mixed matrix systems preferably comprise two or three different matrix materials, more preferably two different matrix materials. Preferably, in this case, one of the two materials is a material having hole-transporting properties and the other material is a material having electron-transporting properties. The compound of the formula (I) is preferably the matrix material having hole-transporting properties. The desired electron-transporting and hole-transporting properties of the mixed matrix components may, however, also be combined mainly or entirely in a single mixed matrix component, in which case the further mixed matrix component(s) fulfill(s) other functions. The two different matrix materials may be present in a ratio of 1 :50 to 1 :1 , preferably 1 :20 to 1 :1 , more preferably 1 : 10 to 1 :1 and most preferably 1 :4 to 1 :1 . Preference is given to using mixed matrix systems in phosphorescent organic electroluminescent devices. One source of more detailed information about mixed matrix systems is the application WO 2010/108579.

The mixed matrix systems may comprise one or more emitting compounds, preferably one or more phosphorescent emitting compounds. In general, mixed matrix systems are preferably used in phosphorescent organic electroluminescent devices.

Particularly suitable matrix materials which can be used in combination with the compounds of the invention as matrix components of a mixed matrix system are selected from the preferred matrix materials specified below for phosphorescent emitting compounds or the preferred matrix materials for fluorescent emitting compounds, according to what type of emitting compound is used in the mixed matrix system. Preferred phosphorescent emitting compounds for use in mixed matrix systems are the same as detailed further up as generally preferred phosphorescent emitter materials.

Preferred embodiments of the different functional materials in the electronic device are listed hereinafter.

Preferred phosphorescent emitting compounds are the following ones:

- 107-

- 108-

-112-

-113-

Preferred fluorescent emitting compounds are selected from the class of the arylamines. An arylamine or an aromatic amine in the context of this invention is understood to mean a compound containing three substituted or unsubstituted aromatic or heteroaromatic ring systems bonded directly to the nitrogen. Preferably, at least one of these aromatic or heteroaromatic ring systems is a fused ring system, more preferably having at least 14 aromatic ring atoms. Preferred examples of these are aromatic

anthracenamines, aromatic anthracenediamines, aromatic pyrenamines, aromatic pyrenediamines, aromatic chrysenamines or aromatic

chrysenediamines. An aromatic anthracenamine is understood to mean a compound in which a diarylamino group is bonded directly to an

anthracene group, preferably in the 9 position. An aromatic

anthracenediamine is understood to mean a compound in which two diarylannino groups are bonded directly to an anthracene group, preferably in the 9,10 positions. Aromatic pyrenamines, pyrenediamines,

chrysenamines and chrysenediamines are defined analogously, where the diarylamino groups are bonded to the pyrene preferably in the 1 position or 1 ,6 positions. Further preferred emitting compounds are

indenofluorenamines or -fluorenediamines, for example according to WO 2006/108497 or WO 2006/122630, benzoindenofluorenamines or - fluorenediamines, for example according to WO 2008/006449, and dibenzoindenofluoreneamines or -diamines, for example according to WO 2007/140847, and the indenofluorene derivatives having fused aryl groups disclosed in WO 2010/012328. Likewise preferred are the

pyrenearylamines disclosed in WO 2012/048780 and in WO 2013/185871 . Likewise preferred are the benzoindenofluorenamines disclosed in WO 2014/037077, the benzofluorenamines disclosed in WO 2014/106522, the extended benzoindenofluorenes disclosed in WO 2014/1 1 1269 and in

WO 2017/036574, the phenoxazines disclosed in WO 2017/028940 and in WO 2017/028941 , and the fluorene derivatives bonded to furan units or to thiophene units that are disclosed in WO 2016/150544. Useful matrix materials, preferably for fluorescent emitting compounds, include materials of various substance classes. Preferred matrix materials are selected from the classes of the oligoarylenes (e.g. 2,2', 7,7'- tetraphenylspirobifluorene according to EP 676461 or

dinaphthylanthracene), especially of the oligoarylenes containing fused aromatic groups, the oligoarylenevinylenes (e.g. DPVBi or spiro-DPVBi according to EP 676461 ), the polypodal metal complexes (for example according to WO 2004/081017), the hole-conducting compounds (for example according to WO 2004/05891 1 ), the electron-conducting compounds, especially ketones, phosphine oxides, sulphoxides, etc. (for example according to WO 2005/084081 and WO 2005/084082), the atropisomers (for example according to WO 2006/048268), the boronic acid derivatives (for example according to WO 2006/1 17052) or the benzanthracenes (for example according to WO 2008/145239). Particularly preferred matrix materials are selected from the classes of the

oligoarylenes comprising naphthalene, anthracene, benzanthracene and/or pyrene or atropisomers of these compounds, the oligoarylenevinylenes, the ketones, the phosphine oxides and the sulphoxides. Very particularly preferred matrix materials are selected from the classes of the

oligoarylenes comprising anthracene, benzanthracene,

benzophenanthrene and/or pyrene or atropisomers of these compounds. An oligoarylene in the context of this invention shall be understood to mean a compound in which at least three aryl or arylene groups are bonded to one another. Preference is further given to the anthracene derivatives disclosed in WO 2006/097208, WO 2006/131 192, WO 2007/065550, WO 2007/1 10129, WO 2007/065678, WO 2008/145239, WO 2009/100925, WO 201 1 /054442 and EP 1553154, the pyrene compounds disclosed in EP

1749809, EP 1905754 and US 2012/0187826, the

benzanthracenylanthracene compounds disclosed in WO 2015/158409, the indenobenzofurans disclosed in WO 2017/025165, and the

phenanthrylanthracenes disclosed in WO 2017/036573.

Preferred matrix materials for phosphorescent emitting compounds are, as well as the compounds of the formula (I), aromatic ketones, aromatic phosphine oxides or aromatic sulphoxides or sulphones, for example according to WO 2004/013080, WO 2004/093207, WO 2006/005627 or WO 2010/006680, triarylamines, carbazole derivatives, e.g. CBP (N,N- biscarbazolylbiphenyl) or the carbazole derivatives disclosed in WO

2005/039246, US 2005/0069729, JP 2004/288381 , EP 1205527 or WO 2008/086851 , indolocarbazole derivatives, for example according to WO 2007/063754 or WO 2008/056746, indenocarbazole derivatives, for example according to WO 2010/136109, WO 201 1/000455 or WO

2013/041 176, azacarbazole derivatives, for example according to EP 1617710, EP 161771 1 , EP 1731584, JP 2005/347160, bipolar matrix materials, for example according to WO 2007/137725, silanes, for example according to WO 2005/1 1 1 172, azaboroles or boronic esters, for example according to WO 2006/1 17052, triazine derivatives, for example according to WO 2010/015306, WO 2007/063754 or WO 2008/056746, zinc complexes, for example according to EP 652273 or WO 2009/062578, diazasilole or tetraazasilole derivatives, for example according to WO 2010/054729, diazaphosphole derivatives, for example according to WO 2010/054730, bridged carbazole derivatives, for example according to US

2009/0136779, WO 2010/050778, WO 201 1/042107, WO 201 1/088877 or WO 2012/143080, triphenylene derivatives, for example according to WO 2012/048781 , or lactams, for example according to WO 201 1/1 16865 or WO 201 1/137951 . Suitable charge transport materials as usable in the hole injection or hole transport layer or electron blocking layer or in the electron transport layer of the electronic device of the invention are, as well as the compounds of the formula (I), for example, the compounds disclosed in Y. Shirota et al., Chem. Rev. 2007, 107(4), 953-1010, or other materials as used in these layers according to the prior art.

Preferably, the inventive OLED comprises two or more different hole- transporting layers. The compound of the formula (I) may be used here in one or more of or in all the hole-transporting layers. In a preferred embodiment, the compound of the formula (I) is used in exactly one or exactly two hole-transporting layers, and other compounds, preferably aromatic amine compounds, are used in the further hole-transporting layers present. Further compounds which are used alongside the compounds of the formula (I), preferably in hole-transporting layers of the OLEDs of the invention, are especially indenofluorenamine derivatives (for example according to WO 06/122630 or WO 06/100896), the amine derivatives disclosed in EP 1661888, hexaazatriphenylene derivatives (for example according to WO 01/049806), amine derivatives with fused aromatics (for example according to US 5,061 ,569), the amine derivatives disclosed in WO 95/09147, monobenzoindenofluorenamines (for example according to WO 08/006449), dibenzoindenofluorenamines (for example according to WO 07/140847), spirobifluorenamines (for example according to WO 2012/034627 or WO 2013/120577), fluorenamines (for example according to WO 2014/015937, WO 2014/015938, WO 2014/015935 and WO 2015/082056), spirodibenzopyranamines (for example according to

WO 2013/083216), dihydroacridine derivatives (for example according to WO 2012/150001 ), spirodibenzofurans and spirodibenzothiophenes, for example according to WO 2015/022051 , WO 2016/102048 and

WO 2016/131521 , phenanthrenediarylamines, for example according to WO 2015/131976, spirotribenzotropolones, for example according to

WO 2016/087017, spirobifluorenes with meta-phenyldiamine groups, for example according to WO 2016/078738, spirobisacridines, for example according to WO 2015/15841 1 , xanthenediarylamines, for example according to WO 2014/072017, and 9,10-dihydroanthracene spiro compounds with diarylamino groups according to WO 2015/086108.

Very particular preference is given to the use of spirobifluorenes

substituted by diarylamino groups in the 4 position as hole-transporting compounds, especially to the use of those compounds that are claimed and disclosed in WO 2013/120577, and to the use of spirobifluorenes substituted by diarylamino groups in the 2 position as hole-transporting compounds, especially to the use of those compounds that are claimed and disclosed in WO 2012/034627.

Materials used for the electron transport layer may be any materials as used according to the prior art as electron transport materials in the electron transport layer. Especially suitable are aluminum complexes, for example Alq3, zirconium complexes, for example Zrq ₄ , lithium complexes, for example Liq, benzimidazole derivatives, triazine derivatives, pyrimidine derivatives, pyridine derivatives, pyrazine derivatives, quinoxaline derivatives, quinoline derivatives, oxadiazole derivatives, aromatic ketones, lactams, boranes, diazaphosphole derivatives and phosphine oxide derivatives. Further suitable materials are derivatives of the

abovementioned compounds as disclosed in JP 2000/053957, WO

2003/060956, WO 2004/028217, WO 2004/080975 and WO 2010/072300.

Preferred cathodes of the electronic device are metals having a low work function, metal alloys or multilayer structures composed of various metals, for example alkaline earth metals, alkali metals, main group metals or lanthanoids (e.g. Ca, Ba, Mg, Al, In, Mg, Yb, Sm, etc.). Additionally suitable are alloys composed of an alkali metal or alkaline earth metal and silver, for example an alloy composed of magnesium and silver. In the case of multilayer structures, in addition to the metals mentioned, it is also possible to use further metals having a relatively high work function, for example Ag or Al, in which case combinations of the metals such as Ca/Ag, Mg/Ag or Ba/Ag, for example, are generally used. It may also be preferable to introduce a thin interlayer of a material having a high dielectric constant between a metallic cathode and the organic semiconductor. Examples of useful materials for this purpose are alkali metal or alkaline earth metal fluorides, but also the corresponding oxides or carbonates (e.g. LiF, L12O, BaF2, MgO, NaF, CsF, CS2CO3, etc.). It is also possible to use lithium quinolinate (LiQ) for this purpose. The layer thickness of this layer is preferably between 0.5 and 5 nm.

Preferred anodes are materials having a high work function. Preferably, the anode has a work function of greater than 4.5 eV versus vacuum. Firstly, metals having a high redox potential are suitable for this purpose, for example Ag, Pt or Au. Secondly, metal/metal oxide electrodes (e.g.

AI/Ni/NiOx, Al/PtOx) may also be preferred. For some applications, at least one of the electrodes has to be transparent or partly transparent in order to enable the irradiation of the organic material (organic solar cell) or the emission of light (OLED, O-laser). Preferred anode materials here are conductive mixed metal oxides. Particular preference is given to indium tin oxide (ITO) or indium zinc oxide (IZO). Preference is further given to conductive doped organic materials, especially conductive doped polymers. In addition, the anode may also consist of two or more layers, for example of an inner layer of ITO and an outer layer of a metal oxide, preferably tungsten oxide, molybdenum oxide or vanadium oxide.

The device is structured appropriately (according to the application), contact-connected and finally sealed, in order to rule out damaging effects by water and air.

In a preferred embodiment, the electronic device is characterized in that one or more layers are coated by a sublimation process. In this case, the materials are applied by vapour deposition in vacuum sublimation systems at an initial pressure of less than 10 ^"5 mbar, preferably less than 10 ^"6 mbar. In this case, however, it is also possible that the initial pressure is even lower, for example less than 10 ^"7 mbar.

Preference is likewise given to an electronic device, characterized in that one or more layers are coated by the OVPD (organic vapour phase deposition) method or with the aid of a carrier gas sublimation. In this case, the materials are applied at a pressure between 10 ^"5 mbar and 1 bar. A special case of this method is the OVJP (organic vapour jet printing) method, in which the materials are applied directly by a nozzle and thus structured (for example M. S. Arnold et al., Appl. Phys. Lett. 2008, 92, 053301 ).

Preference is additionally given to an electronic device, characterized in that one or more layers are produced from solution, for example by spin- coating, or by any printing method, for example screen printing,

flexographic printing, nozzle printing or offset printing, but more preferably LITI (light-induced thermal imaging, thermal transfer printing) or inkjet printing. For this purpose, soluble compounds of formula (I) are needed. High solubility can be achieved by suitable substitution of the compounds.

It is further preferable that an electronic device of the invention is produced by applying one or more layers from solution and one or more layers by a sublimation method.

According to the invention, the electronic devices comprising one or more compounds of formula (I) can be used in displays, as light sources in lighting applications and as light sources in medical and/or cosmetic applications (e.g. light therapy).

Examples

A) Synthesis examples

The following syntheses are carried out under a protective-gas atmosphere, unless indicated otherwise. The starting materials can be purchased from ALDRICH or ABCR. The numbers in square brackets in the case of the starting materials known from the literature are the corresponding CAS numbers.

Example 1

Synthesis of 5-bromo-2-chloro-9,9'-spirobifluorene 1a

A solution of 2, 2'-dibromo-4-chloro-biphenyl (84 g, 239 mmol) in THF (200ml) is treated with 109 ml_ of n-BuLi (2,2 M in hexane, 239 mmol) under argon at -78 °C. The mixture is stirred for 30 minutes. A solution of fluoren-9-one (44 g, 239 mmol) in 150 ml_ THF is added dropwise. The reaction proceeds at -78 °C for 30 minutes and then is stirred at room temperature overnight. The reaction is quenched with water and the solid is filtered. Without further purification, a solution of the alcohol in 966 ml_ toluene and 2,9 g p-toluenesulfonic acid is refluxed overnight . After cooling, the organic phase is washed with water and the solvent is removed under vacuum. The product is isolated in the form of a white solid (60 g, 91 % of theory).

The synthesis of further halogenated spirobifluorene derivatives is carried out analogously:

Synthesis of 2-chloro-5-phenyl-9,9'-spirobifluorene 2a

31 ,5 g (251 mmol) of of phenyl-boronic acid, 1 10 g (251 mmol) of 5-bromo- 2-chloro-9,9'-spirobifluorene, 9,9 g (8,5 mmol) of Pd(P(Ph ₃ ))4, and 66,8 g (627 mmol) of Na2CO3 are dissolved in 903 mL of water, 278 mL of ethanol and 1 ,9 L of toluene. The reaction mixture is refluxed and agitated under an argon atmosphere for 12 hours and after cooling to room temperature, the mixture is filtered through Celite. The filtrate is evaporated in vacuo, and the residue is crystallised from heptane. The product is isolated in the form of an off-white solid (100 g 94% of theory).

The following compounds are synthesized analogously: Synthesis of N-{[1 ,1 '-biphenyl]-4-yl}-N-(9,9-dimethyl-9H-f luoren-2-yl)-5- phenyl-9,9'-spirobi[fluorene]-2-amine 3a

Tri-tert-butylphosphine (1 ,32 mL of a 1 .0 M solution in toluene, 1 ,32 mmol), Pd2(dba)3 (607 mg, 0,66 mmol) and sodium tert-butoxide (4,8 g, 49,7 mmol) are added to a solution of biphenyl-4-yl-(9,9-dimethyl-9H-fluoren-2- yl)-amine (1 1 ,9 g, 33,1 mmol) and 2'-chloro-5'-phenyl-9,9'-spirobifluorene (14,7 g, 33,1 mmol) in degassed toluene (500 ml), and the mixture is heated under reflux for 6 h. The reaction mixture is cooled to room temperature, extended with toluene and filtered through Celite. The filtrate is evaporated in vacuo, and the residue is crystallised from toluene/heptane. The crude product is extracted in a Soxhiet extractor (toluene) and purified by zone sublimation in vacuo twice. The product is isolated in the form of an off-white solid (9,5 g, 38% of theory).

The following compounds are obtained analogously:

Ex. Halogenated Amine Product Yield spiro

3b 43%

H-N

[1021 13-98-4] - 136-

Synthesis of N-il^ -biphenyll-^y^-Q^-dimethyl-N-i^i^phenyl-g,^- spirobi[fluorene]-7-yl}phenyl)-9H-fluoren-2-amine 4a

59.1 g (101 .8 mmol) of Biphenyl-4-yl-(9,9-dimethyl-9H-fluoren-2-yl (4,4,5,5- tetramethyl-[1 ,3,2]dioxaborolan-2-yl)-phenyl]-amine, 43,5 g (101 .8 mmol) of 2-chloro-5-phenyl-9,9'-spirobifluorene, 3.88 g (5.14 mmol) of PdCI ₂ (Cy) ₃ ,

31 .2 g (205.6 mmol) of cesium fluoride are dissolved in 800 mL of toluene. The reaction mixture is refluxed and agitated under an argon atmosphere for 12 hours and after cooling to room temperature, the mixture is filtered through Celite. The filtrate is evaporated in vacuo, and the residue is crystallised from heptane. The crude product is extracted in a Soxhlet extractor (toluene) and purified by zone sublimation in vacuo twice. The product is isolated in the form of a white solid (42 g, 51 % of theory).

The following compounds are synthesized analogously:

B) Device Examples

1 ) General Procedure

OLEDs comprising compounds according to the present application, and OLEDs comprising reference compounds are prepared by the following general process: The substrates used are glass plates coated with structured ITO (indium tin oxide) in a thickness of 50nm. The OLEDs basically have the following layer structure: substrate / hole-injection layer (HIL) / hole-transport layer (HTL) / electron-blocking layer (EBL) / emission layer (EML) / electron-transport layer (ETL) / electron-injection layer (EIL) and finally a cathode. The cathode is formed by an aluminium layer with a thickness of 100nm. The specific device setup of the OLEDs is shown in Table 1 , and the materials required for the production of the OLEDs are shown in Table 3.

All materials are applied by thermal vapour deposition in a vacuum chamber. The emission layer here always consists of at least one matrix material (host material) and an emitting dopant (emitter), which is admixed with the matrix material or matrix materials in a certain proportion by volume by co- evaporation. An expression such as H1 :SEB (5%) here means that material H1 is present in the layer in a proportion by volume of 95% and SEB is present in the layer in a proportion by volume of 5%. Analogously, other layers may also consist of a mixture of two or more materials.

The OLEDs are characterised by standard methods. For this purpose, the electroluminescence spectra and the external quantum efficiency (EQE, measured in per cent) as a function of the luminous density, calculated from current/voltage/luminous density characteristic lines (IUL characteristic lines) assuming Lambert emission characteristics, and the lifetime are determined. The expression EQE @ 10mA/cm ² denotes the external quantum efficiency at an operating current density of 10mA cm ² . LT80 @ 60mA/cm2 is the lifetime until the OLED has dropped from its initial luminance of i.e. 5000cd/m ² to 80% of the initial intensity, i.e. to 4000cd/m ² without using any acceleration factor. The data for the various OLEDs containing inventive and comparative materials are summarised in Table 2.

In particular, compounds according to the invention are suitable as HIL, HTL, or EBL materials, or as matrix materials in the EML in OLEDs. They are suitable for use as a single material in a layer, but also for use as a mixed component in HIL, HTL, EBL or within the EML.

2) Examples for use of compounds according to the application in HIL, HTL and EBL of OLEDs

Table 2 shows the performance data which is obtained with the specific OLED examples shown in Table 1 . OLEDs C1 and C2 are reference examples, which comprise the prior art compounds HTM-b and EBM.

OLEDs E1 , E2 and E3 are OLEDs according to the present application, which comprise the inventive compounds HTM-1 , HTM-2 and HTM-3.

Compared with the OLEDs according to the prior art (C1 to C2), the samples comprising the compounds according to the invention (E1 to E3) exhibit better performance both in singlet blue devices (C1 compared to E1 and E3) and also in triplet green devices (C2 compared to E2).

It can be shown, that lifetime of device E1 is better than the reference example C1 . This shows the improved performance of the compound HTM-1 , compared to the reference material HTM-b. Similarly, lifetime of device E3 is better than the one of the device C1 . This shows the improved performance of the compound HTM-3, compared to the reference material HTM-b. Finally, device E2 shows better lifetime than the reference example C2. This shows the improved performance of the compound HTM-2, compared to the reference compound EBM.

3) Comparison between an OLED comprising the compound HTM-1 according to the invention, and an OLED comprising the compound HTM-c, in the HIL and HTL of a singlet blue device

The two OLEDs are prepared according to the general process described above under 1 ).

The stack structures are shown in Table 1 b below: Table 1 b: Device Setup

Ex. HIL HTL EBL EML ETL EIL

Thickness

Thickness / nm Thickness / nm Thickness / nm Thickness / nm Thickness / nm

/ nm

HTM-c: p-

HTM-c EBM H:SEB(5%) ETM:LiQ(50%) LiQ

C3 doped(5%)

180 nm 10 nm 20 nm 30 nm 1 nm 20 nm

HTM-1 : p-

HTM-1 EBM H:SEB(5%) ETM:LiQ(50%) LiQ

E4 doped(5%)

180 nm 10 nm 20 nm 30 nm 1 nm 20 nm

While the operating voltage and the lifetime remain similar, a strong

increase in EQE is found for the OLED E4 comprising the compound

according to the invention HTM-1 , compared to the OLED C3 comprising the comparative compound HTM-c. OLED E4 has an EQE of 9.1 %,

whereas OLED C3 has an EQE of 7.9 %.

4) Comparison between an OLED comprising the compound HTM-1

according to the invention, and an OLED comprising the compound HTM in the EBL of a triplet green device

The two OLEDs are prepared according to the general process described above under 1 ).

The stack structures are shown in Table 1 c below:

While the operating voltage and the lifetime remain similar, a strong

increase in EQE is found for the OLED E5 comprising the compound

according to the invention HTM-1 , compared to the OLED C4 comprising the comparative compound HTM-c. OLED E5 shows an EQE of 15.9%, whereas OLED C4 shows an EQE of 14.9%. 5) Further device examples with compounds HTM-4 to HTM-7

OLEDs E6, E7, E8 and E9 are OLEDs according to the present application, which comprise the inventive compounds HTM-4, HTM-5, HTM-6 and HTM-7.

E6 shows the performance of the inventive compound HTM-4 as a HIL and HTL material in a singlet blue device (for detailed stack see below). Here, a lifetime LT80@60 mA cm ² of 290 h is found, along with good efficiency and voltage.

E7, E8 and E9 show the performance of the inventive compounds HTM-5, HTM-6 and HTM-7 as EBL materials in a triplet green device (for detailed stack see below). Here, lifetimes LT80@40 mA/cm ² of 390 h (E7), 280 h (E8), and 310 h (E9) are found, along with good efficiency and voltage.

Table 3: Materials used

p-dopant F4TCNQ HTM-a HTM-b