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Matches 551 - 600 out of 5,669

Document Document Title
WO/1994/022978A1
Described are processes for preparing brominated diphenylalkane products which are far whiter than prior known brominated diphenylalkane products. The resultant white brominated diphenylalkane products also form a part of the present inv...  
WO/1994/020442A1
A fluorinated aromatic compound represented by formula (I), utilizable for preparing a magnetic fluid having a wide heat-resistant temperature range and a high water resistance. In said formula, X represents H, F, Cl, C1-C20 alkyl or C1-...  
WO/1994/020443A1
To provide a liquid crystal compound, a dicyclohexylethylene derivative, which has a wide liquid crystal phase temperaturerange, a low viscosity, a large DELTA value, a high stability, and an excellent compatibility with other liquid cry...  
WO/1994/018285A1
Indan derivates have formula (I), in which X1 and X2 independently represent H, F, Cl, CF3, CN, OCF3, OCF2H, alkyl or alkoxy having each up to 5 carbon atoms, P-Q is a simple or double bond and MG is a mesogenic group. Also disclosed is ...  
WO/1994/017018A1
A fullerene derivate has formula (I), in which the symbols and indexes have the following meaning: F is a fullerene residue having the formula (C20+2m), in which m equals 1 to 50; R1 to R8 are the same or different and represent H, CO2R9...  
WO/1994/012455A1
The invention relates to methylene cyclobutane-benzole derivatives of formula (I) in which R1, A1, Z1, L1, L2, m, V, W, Y and n have the meanings given in claim 1, and their use as components of liquid crystal media for electro-optical d...  
WO/1994/008978A1
Compounds having the structural formula (I), wherein R can be the same or different and is halogen, hydrogen, C1-C8 alkyl, C1-C8 haloalkyl, C3-C6 cycloalkyl, C7-C9 aralkyl, phenyl, nitro, C1-C6 alkoxy, C1-C6 alkylthio, C1-C6 alkylsulfiny...  
WO/1994/006741A1
A pesticidal compound, suitable for combating soil borne insect pests has formula (I) in which ArA represents a phenyl or naphthyl group optionally substituted by one or more groups selected from halogen, alkoxy, haloalkoxy, methylenedio...  
WO/1994/005613A1
A difluoride derivative represented by the general formula: R1-(A1-Y1)m-A2-CF=CF-C=C-A3-(Y2-A4)n-R2, wherein A1 through A4 represent each trans-1,4-cyclohexylene, 1,4-cyclohexenylene or 1,4-phenylene; m and n represent each 0 or 1; and R...  
WO1993025530A3  
WO/1994/000423A1
A process is disclosed for preparing compounds having general formula (I) by cross-coupling boric acids, borine acids or boric anhydrides derived therefrom having general formula (II), in which x1, x2, x3 and x4 represent independently f...  
WO/1993/025530A2
A process and pharmaceutical compositions for treating several diseases and conditions which are normally treatable with retinoid-like compounds are disclosed where the compounds used for the treatment are substantially non-teratogenic a...  
WO/1993/021145A1
Non-steroidal compounds which are high affinity, high specificity ligands for progesterone receptors are disclosed. The compounds include synthetic derivatives of cyclocymopol and its diastereomers, spectroscopically and chromatographica...  
WO/1993/018100A1
Disclosed is a mixture of about 1 to about 99 volume percent monochlorotoluene and about 1 to about 99 volume percent monochlorobenzotrifluoride. Also disclosed is a mixture of about 10 to about 60 volume percent monochlorotoluene, about...  
WO/1993/015086A1
A novel zerovalent zinc species and an organozinc reagent are disclosed. The zerovalent zinc species is directly produced by reaction of a reducing agent on a zinc salt, preferably Zn(CN)¿2?. The organozinc reagent results from the reac...  
WO1993009074A3  
WO/1993/009074A2
Compounds having acidic protons and a molecular structure which can delocalize the electron density of the conjugate base (target compounds) are chlorinated by contacting such compounds with a perchloroalkane and aqueous base in the pres...  
WO/1993/008799A1
Novel indane and indene derivatives are described which are endothelin receptor antagonists.  
WO/1993/007109A1
Novel 3,4-dihydro-4-oxo-3-(prop-2-enyl)-1-phtalazineacetic acids and derivatives of formula (I) in which R1, R2 and R3 are the same or different and stand for H, a halogen or a linear or branched aliphatic, saturated or unsaturated radic...  
WO/1993/007234A1
Compounds of general formula (I), wherein R signifies hydrogen, halogen, cyano, isothiocyanato, or alkyl, alkenyl or alkynyl with 1 to 15 carbon atoms, which is unsubstituted or substituted with at least one of halogen, cyano and/or trif...  
WO/1993/003113A1
Disclosed are liquid-crystal compounds of formula (I), in which R is H, an unsubstituted alkyl or alkenyl group with 1 to 15 C-atoms or an alkyl or alkenyl group with 1 to 15 C-atoms substituted with one CN or CF¿3? group or with at lea...  
WO/1992/021734A1
The invention concerns vinyl compounds of formula (I), in which R is H, an alkyl or alkenyl group with 1 to 15 C-atoms which may be unsubstituted, substituted singly by CN or CF�3? or substituted at least singly by halogen, one or more...  
WO/1992/019748A1
In addition to virions, herpesvirus-infected cells produce non-infectious particles, termed L-particles, which consist of tegument surrounded by envelope but lack the nucleocapsid. L-particles of a herpesvirus can be prepared substantial...  
WO/1992/018448A1
Fluoro tolans of formula (I), wherein R?1� denotes alkyl with up to 12 carbon atoms wherein one or two non-adjacent CH�2? groups may also be replaced by -O-, -O-CO-, -CO-O- and/or -CH=CH-, A is trans-1,4-cycolhexylene or 1,4-phenylen...  
WO/1992/017220A1
A plasma filtration method to separate blood into plasma and corpuscles with the primary filter and to remove high molecular weight substances as harmful components from said separated plasma by filtering said plasma with the secondary f...  
WO/1992/016483A1
Methylene cyclobutane derivates are disclosed having formula (I), in which R?1�, A?1�, A?2�, Z?1�, Z?2�, L?1�, L?2�, X, Y and m have the meanings given in claim 1. Also disclosed is their use as components of liquid-crystal...  
WO1991008184A3  
WO/1992/013928A1
Described are liquid-crystal compounds of formula (I), in which R may be H, an alkyl or alkylene group with 1 to 15 C-atoms which is unsubstituted or which is substituted with a single CN or CF�3? group or with at least one halogen ato...  
WO/1992/009367A1
Disclosed is a process for regeneration of a zeolite catalyst comprising conducting the following steps within the regeneration zone wherein the zeolite is located: (1) applying vacuum or delivering a source of molecular oxygen or inert ...  
WO/1992/007811A1
Disclosed is a process for preparation of a stream which is both selectively high in 2,6-diiodonaphthalene and also contains substantial quantities of diiodonaphthalene. First, naphthalene is oxyiodinated in the presence of a zeolite cat...  
WO/1992/007809A1
Process for the production of diaryls of formula (1): R?1¿¿m? - Ar - Ar - R?1¿¿m? in which: Ar is a phenylene or naphthylene group; R¿1? is a hydrogen, fluorine or chlorine atom or an unbranched or branched alkyl (C¿1?-C¿6?)-alkyl...  
WO/1992/004308A1
Disclosed is a process comprising preparing a product stream rich in naphthalene and 2-monoiodonaphthalene comprising contacting hydrogen and a feed stream containing iodonaphthalenes selected from the group consisting of monoiodonaphtha...  
WO/1992/000264A1
A method for synthesizing 1,1-bis(chlorophenyl)2,2,2-trichloroethanol (dicofol) from chloral and chlorobenzene, wherein the acid by-products generated during the condensation of the chloral and the chlorobenzene are used as a reaction me...  
WO/1991/018855A1
A process for producing a mixture of ar-brominated polyphenyl compounds with an average of from 3 to 4 bromine atoms per aromatic ring utilizing a novel catalytic system for at least a portion of the bromination reaction so as to obtain ...  
WO/1991/017135A1
The invention relates to novel phenyl cyclohexans of formula (I) in which Hal is F or Cl, l is 1, 2 or 3, r is 0 or 1 to 6; E is -A-, -A-CH�2?CH�2?- or -CH�2?CH�2?-A-, A trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluor-1,4-phenyle...  
WO/1991/017134A1
The invention concerns phenyl cyclohexanes of formula (I) in which: Q is (a), (b) or (c); R is alkyl, alkoxy, oxaalkyl or haloalkyl, each with up to 12 C atoms; r is 0 or 1; X is F, Cl, CF�3?, OCF�3? or OCHF�2?; and L?1�, L?2�,...  
WO/1991/016286A1
A process is disclosed for producing $g(a)-fluorostyrol from fluorolefines. A halogen aromate (1) is converted into a $g(a)-fluorostyrol (III) with a fluorine substituted ethylene (II) in the presence of a palladium catalyzer. R may repr...  
WO/1991/016291A1
The invention relates to novel phenyl cyclohexanes of formula (I) in which Q is CH-Hal or C-Hal�2?, where Hal is F or Cl; n is 1 to 5; R is 0 to 6; A is a simple bond (a), (b) or (c) where (a) is (d), (e), (f) or (g); X is F, Cl, -CF...  
WO/1991/016287A1
1,2,4-Triflurobenzene and 1-chloro-3,4-difluorobenzene are prepared by reacting 2,4-difluoroaniline and 5-chloro-2-fluoroaniline, respectively, with t-butyl nitrite in the presence of borontrifluoride etherate complex, followed by the th...  
WO1991006522A3  
WO/1991/013847A1
1-Chloro-3,4-difluorobenzene, an intermediate in the production of certain quinolone drugs, is produced by converting a chlorofluoro-aniline into the corresponding diazonium fluoborate, and pyrolysing the latter to give the 1-chloro-3,4-...  
WO/1991/013850A1
The invention relates to 4,4'-disubstituted 2',3-difluorbiphenyls of formula (I), where n is a number from 1 to 7, A stands for trans-1,4-cyclohexylene or 1,4-phenylene, r stands for 0 or 1, X stands for F, Cl, -CF�3?, -CHF�2?, -OCF...  
WO/1991/013047A1
A regioselective process is provided for preparing 4-bromo-o-xylene in an isomer mixture of 4-bromo-o-xylene and 3-bromo-o-xylene by combining a molar excess of bromine with o-xylene. The produced 3-bromo-o-xylene isomer preferentially r...  
WO1991005750A3  
WO/1991/011418A1
Partially fluorinated compounds of formula (I): R?1�-A?1�-Z?1�-(A?2�-Z?2�)�m?-A?3�-(Y)�n?-Q- R?2� where R?1�, R?2�, A?1�, A?2�, A?3�, Z?1�, Z?2�, Y, m and n have the meanings given in claim 1 and Q stands ...  
WO/1991/008184A2
Disclosed are 1,4-disubstituted 2,6-difluorobenzene compounds of the formula (I), in which R is an unsubstituted alkyl or alkenyl residue with 1-15 C-atoms or an alkyl or alkenyl group with 1-15 C-atoms substituted with at least one halo...  
WO/1991/006523A1
Described is a method of preparation of fluorobenzenes and fluorotoluenes of the formula (I) in which X is H or a methyl group, R?1¿, R?2¿ and R?3¿, independently of each other, are at least one of the residues H, F, Cl and C¿1?-C¿3...  
WO/1991/006522A2
New phenylcyclohexanes of formula (I), where Q stands for alkylene with up to 5 C atoms or a single bond, A stands for (a), (b), (c), (d), (e), (f), (g), -CH¿2?CH¿2?CH¿2?CH¿2?-, -CH¿2?CH¿2?- or a single bond, X stands for F, Cl, -C...  
WO/1991/006518A1
Described is a method of preparation of fluorobenzenes with at least one hydrogen atom substituted on the ring and, optionally, other substituents which, independently of each other, can be chlorine, bromine, nitro, hydroxy, C¿1?-C¿3? ...  
WO/1991/005750A2
This invention concerns a process for preparing fluoroalkyl substituted olefins, fluorinated ketones and fluorinated aromatic compounds by the catalyzed reaction of fluoroalkylsilanes with selected fluorinated olefins, acyl fluorides and...  

Matches 551 - 600 out of 5,669