SPECIFICATION

DICYCLIC METAL COMPLEX FORMAZAN DERIVATIVES-

PROCESS FOR PRODUCING THE SAME. COMPOSITION

CONTAINING THE SAME AND DYEING PROCESS

EMPLOYING THE SAME

Technical Field

The present invention relates to formazan derivatives useful

as reactive dye and a process for producing the derivatives. More

specifically, the present invention relates to a novel dicyclic metal

complex formazan derivatives used as a light blue dye and a

process for producing the derivatives.

Background Art

Generally, metal complex formazan derivatives are used as

complex salt of divalent or trivalent metal such as copper, nickel,

cobalt and chromee, have brighter colors than conventional azo

dyes, and have an excellent compatibility with the other color dyes

as compared with anthraquinone or dioxazine- based dyes.

Formazan derivatives as reacive dyes which have a form of

copper complex or have a vinylsulfone group or both of

vinylsulfone group and monochlorotriazine, have been developed

long time ago. The conventional formazan are mostly tricyclic.

Most of them are 2-carboxyl-5-sulfo-phenylhydrazine as hydrazine

compound. These tricyclic formazans are expensive in

manufactruing and poor in stability for alkali at the time of room

tepperature immersion (cold pad) dyeing.

Typical tricyclic formazan compounds have the following

formula:

Specifically, Japanese Patent Publication No.81-4783 describes a

compound represented by the below formula:

However, the said compound of Japanese Patent Publication

No.81 -4783 is not good in solubility, dyeing property and state of

remained bath. In addition, Japanese Patent Publication Sho

55-12187 and EP 0,099,721 disclose tricyclic formazan derivatives

as dye similiar to the compound of the Japanese Patent

Publication No.81-4783. But, these dyes are expensive in

manufacturing cost and are not good in fastness.

Further, United Kingdom Patent Publication 1,194,504 discloses

dicyclic formazan derivatives having the following formula-'

CH ₃ S0 ₂ ^• S0 ₂ CH ₂ CH ₂ OS0 ₃ H

I I I

N.- C" N

^

The said dicyclic formazan derivatives is also not good in

fastness and dyeing property.

USP 4,607,098 discloses a compound of the following formula

which has more improved fastness than the said dicyclic formazan

derivatives:

BAD ORIGINAL

However, these formazan compounds known in USP 4,607,098 have

also somewhat problems in dyeing property and chlorine water.

Disclosure of the Invention

The inventors have made extensive and intensive sutdies with

a view to solving the above-described problems, and thereby have

obtained novel formazan derivatives represented by the below

formula(l):

wherein

A is benzene or naphthalene having 1 to 3 substituent groups

and sulfo group(-S03M) in ortho-position for N-atom of

hydrazone compound;

B is strait- or branched-chain alkyl group, phenyl group,

naphthyl group or substituent heterocyclic group;

C is benzene or naphthalene having from 1 to 3 substituent groups;

D is benzene or naphthalene;

M is hydrogen atom, alkali metal or alkaki earth metal;

Me is metal ion of atomic number 27 to 29;

Y is halogen;

X is hydrogen atom or sulfo group, carboxyl group, phosphonic

group providing solubility for water;

R is strait- or branched-chain alkyl group;

Q is -S0 ₂ CH=CH ₂ , or -S0 ₂ CH ₂ CH ₂ L(L is a group which may be

substituted by alkali); and

l,m,n are independently an intenger from 0 to 3.

Formazan derivatives represented by the above formula(l ) are

produced by firstly condensing formazan compound of the below

formula(2) with 1,3,5-trihalogeno-s-triazine to give formazan

compound of the below formulaO), and secondly condensing the

obtained formazan compound of the formula(3) with amine

compound of the below formula(4):

R

H -N -D-Q (4)

Alternatively, formazan derivatives of the formula( l ) are

produced by reacting 1 ,3,5-trihalogeno-s-triazine with the amine

compound of the formula(4) to give a compound of the below

formula(5), and then reacting the obtained compound • of the

formula(5) with formazan derivatives of the formula(2):

R ^• Y-τ^ ^f N-D-

(5)

The definitions in the compounds of the above formula(2) and

(3) are same as in the compound of the formula(l). However, the

substituents of benzene or naphthalene ring in definitions A and C

are preparably halogen, nitro, C1 -C4 alkyl group, C1 -C4 alkoxy

group, sulfamoyl group, N-mono or N,N-dialkyl(Cι -C4)sulfamoyl,

C1 -C4 alkylsulfonyl group, phenylsulfonyl group, more preferably

chlorine, bromine, nitro, methyl, ethyl, methoxy, ethoxy, sulfamoyl

or N,N -dimethylsulfamoyl group.

If B is a strait or branched chain, it is preferably Ci -Cβ,

more preferably C2-C8.

If B is a benzene or naphthalene, the substituent is preferably

halogen, hydroxy group, nitro group, C1-C4 alkyl, C1-C4 alkoxy

group, d -C4 carboalkoxy group.

If B is heterocyclic ring, the substituent is preferably furan,

thiophen, pyrrol, imidazole, indol, pyrazole, pyridine, pyrimidine,

quinoline, benzimidazole and the like. Hydrogen atom bonded to

the ring-membered carbon consisting of heterocyclic ring may be

substituted with chloro, phenyl, methyl, ethyl, methoxy or ethoxy,

and hydrogen atom bonded to hetero atom of the heterocyclic ring

may be substituted with methyl, ethyl or benzyl.

Me as metalic atom is preferably a compound of atomic

number 27 to 29, more preferably atomic number 29, Cu.

In the compounds of the above formula(l),(3) and (5), halogen

of definition Y is preferably fluorine, chlorine or bromine atom,

more preferably fluorine or chlorine atom.

X group providing solubility for water, is preferably sulfonic

acid, carboxylic acid or phosphonic acid, more preferably sulfonic

acid, which may be bonded to ring-membered carbon atom

consisting of ring or to aliphatic carbon atom linked to ring.

In the compounds of the above formula(l ), (4) and (5), if D is

phenyl, it may be substituted with halogen, C1 -C4 alkyl group or

C ₁ -C ₄ alkoxy group, preferably methyl, ethyl, methoxy, ethoxy,

chlorine or bromine. And if D is naphthalene, it is preferably

unsubstituted or substituted with sulfonic group.

Further, in the compounds of the formulaO ), (4) and (5), if R

is alkyl group, it is preferably low alkyl groups such as methyl,

ethyl, propyl and butyl, more preferably methyl, ethyl, carbamoyl,

ethyl, hydroxyethyl, n-propyl, isopropyl and the like, which may

be substituted with hydroxyl, carboxyl, sulfo, carbamoyl, methoxy

carbonyl group and the like.

l,m and n indenpendently, are preferably 2 or 3.

In the compounds of the above formula(l ),(4) and (5), if Q is

-SO2CH2CH2L, L is preferably ester group, -OPO3H2, -SSO3H2,

more preferably -OSO3H of organic carboxylic acid or sulfonic

acid comprising chlorine, bromine atom or acetyloxy group,

benzoyloxy group, benzene sulfonyloxy group and low alkane oxy

group.

Accordingly, Q can be represented by -SO2CH2CH2OSO3H,

wherein a part of these elements may be removed by alkali to

give a form of -S02CH=CH2.

A group of the below formula(5' ) in the formula(l ) may be

linked to any one of phenyl, naphthyl, alkyl, alkenyl, phenylene,

naphthalene, heterocycle or carbon atom of branched-chain,

preferably phenyl group:

( 5 ' )

Formazan derivatives of the formula(l) according to the above

preferable definitions are represented by the below formula(6):

wherein D,R,Q and Y are same as defined in the formula(l ),(3),(4)

and (5), p,q and r are indenpendently 0 or 1, provided that the

total amount of them is an intenger of 3 or less.

More preferable formazan derivatives is represented by the

below formula(6' ):

Most preferable formazan derivatives is represented by the

below formula(6"):

Formazan derivatives of the formula(l ) according to the

present invention are produced by reacting a formazan compound

of the above formula(2) with 1,3,5-trihalogeno-s-triazine to give a

formazan compound of the below formula(3), and condensing the

obtained formazan compound of the formula(3) with an amine

compound of the above formula(4); or by reacting

1,3,5-trihalogeno-s-triazine with the amine compound of the

formula(4) to give a compound of the below formula(5), and then

reacting the obtained compound of the formula(5) with formazan

derivatives of the formula(2) .

Reaction conditions and order in this process are not

specifically limited, the condensation reaction are conducted

generally at pH 2 to 8 and temperature of -5 to 70 TC , preferably

pH 3 to 6 and temperature of 0 to 60 T. .

More specifically, the reaction condition in the first

condensation may depend on physical properties of the reactants or

intermediates to be produced, but is relatively low pH and reaction

temperature. That is to say, the first condensation reaction is

conducted at pH 2 to 4 and temperature of -5 to 201 , preferably

pH 3 to 4 and temperature of 0 to ICC .

But, the second dondensation reaction depends on physical

prorerties of reactants and formazan derivatives to be produced,

and is conducted at relatively high pH, for example pH 4 to 8 and

relatively high temperature of 20 to 70 "C , preferably pH 4 to 6 and

relatively high temperature of 30 to 601 .

Formazan derivatives of the formual(2) can be produced by

diazotating an amine compound of the below formula(7) to give a

sulfone compound, hydrolizing the obtained sulfone compound in

the presence of inorganic acid to give hydrazine compound,

reacting the obtained compound with aldehyde compound of the

formula(8) to synthesize hydrazone compound, reacting the

obtained hydrazone compound with the compound of the below

formulaO) to diazotate it, and then coupling them in the presence

of metal ion:

X.

NH„

(7)

X HO m B -C

(8)

If the above obtained compound is not amine compound of the

formula(2) but compound of the below formula(lθ) having nitro or

acetylamino group, the compound of the formula(2) can be easily

produced by reduction of nitro group or hydrolysis of acetylamino

group:

( 10) wherein T is nitro group or acetylamino group, and definition for

the other symbols are same as these of the above formula(l).

Metal ion used in this process are sulfate, carbonate,

acetate, salisilate, tartarate or chloride which concerns in the

reaction.

Examples of the compound represented by the forumla(7)

are aniline-2-sulfonic acid, aniline-2,4-disulfonic acid, aniline-2,5-

disulfonic acid, 4-methylaniline-2-sulfonic acid, 5-methylaniline

-2-sulfonic acid, 2,4-dimethylaniline-2-sulfonic acid, 4,5-

dimethylaniline-2-sulfonic acid, 2-methylaniline-4,6-disulfonic acid,

4-methylaniline-2,5-disulfonic acid, 4-methoxyaniline-2-sulfonic

acid, 5-methoxyaniline-2- sulfonic acid, 4-methoxy-5-chloroaniline-

2-sulfonic acid, 4,5-dim ethoxy aniline-2- sulfonic acid, 4-

ethoxyaniline-2- sulfonic acid, 5-ethoxyaniline-2- sulfonic acid, 4-

hydroxyaniline-2- sulfonic acid, 5-hydroxyaniline-2- sulfonic acid,

5-hydroxyaniline-2,4-disulfonic acid, 4-carboxylaniline- 2- sulfonic

acid, 5-carboxylaniline-2-sulfonic acid, 4-hydroxy-3-carboxylaniline

-2- sulfonic acid, 4-nitroaniline~2- sulfonic acid, 5-nitroaniline-2-

sulfonic acid, 2,4-dinitroaniline-6-sulfonic acid, 5-nitro-4-

chloroaniline-2- sulfonic acid, 4-fluoroaniline-2- sulfonic acid,

3-chloroaniline-2-sulfonic acid, 4-chloroaniline-2-sulfonic acid,

5-chloroaniline-2-sulfonic acid, 4,5-dichloroaniline-2-sulfonic acid,

2,4-dichloroaniline-6-sulfonic acid, 2,4,5-trichloroaniline-2-sulfonic

acid, 4-chloro-5-carboxylaniline-2-sulfonic acid, 2,5-dichloro-4-

nitroaniline-6- sulfonic acid, 4-bromoaniline-2- sulfonic acid,

5-bromoaniline-2-sulfonic acid, 2,4-dibromoaniline-6- sulfonic acid,

3,4-dibromoaniline-6- sulfonic acid, 4-iodoaniline-2-sulfonic acid,

5-iodoaniline-2-sulfonic acid, 4-acetaminoaniline-2-sulfonic acid,

5-acetaminoaniline-2- sulfonic acid, l ,4-phenylenediamine-2,5-

disulfonic acid, l,3-phenylenediamine-4,6-disulfonic acid, 1 -

naphthylamine-2-sulfonic acid, 2-naphthylamine-l -sulfonic acid,

l -naphthylamine-2,4-disulfonic acid, l-naphthylamine-2,5-disulfonic

acid, 2-naphthylamine-l,5-disulfonic acid, 2-naphthylamine- l,7-

disulfonic acid, 2-naphthylamine-3,6-disulfonic acid, 2-

naphthy lamine-3,7-disulfonic acid, 1 -naphthy lamine-2,4,7-trisulfonic

acid, 2-naphthylamine-3,6,8-trisulfonic acid, 2-naphthylamine- 1,5,7-

trisulfonic acid.

Examples of the aldehyde compound represented by the

forumla(8) are benzaldehyde, 2-methoxybenzaldehyde, 3-methoxy

benzaldehyde, 4-methoxybenzaldehyde, 4-methoxybenzaldehyde-3-

sulfonic acid, 2-methylbenzaldehyde, 3-methylbenzaldehyde,

4-methoxy-3-chlorobenzaldehyde, 2-nitrobenzaldehyde, 3-nitrobenz

aldehyde, 2-hydroxybenzaldehyde, 2-chlorobenzaldehyde, 4-

chlorobenzaldehyde, 2,4-dichlorobenzaldehyde, 2-chlorobenzaldehyde

-5-sulfonic acid, benzaldehyde-2- sulfonic acid, benzaldehyde-3-

sulfonic acid, benzaldehyde-4- sulfonic acid, benzaldehyde-2,4-

disulfonic acid, 2-acetylaminobenzaldehyde, 4-acetylaminobenz

aldehyde, 4-nitrobenzaldehyde-2- sulfonic acid, 3-methyl-2-

nitrobenzaldehyde, 3-methyl-β-nitrobenzaldehyde, 2-chloro~6-

nitrobenzaldehyde, 1 -naphthoaldehyde, 2-naphthoaldehyde, furan-2-

aldehyde, thiophene-2-aldehyde, pyrrol-2-aldehyde imidazole-2-

aldehyde, pyrazole-5-aldehyde, pyridine-2-aldehyde, pyridine-3-

aldehyde, pyridine-4-aldehyde, pyrimidine-5-aldehyde, quinoline-4-

aldehyde, benzimidazole-2-aldehyde, acetaldehyde, buthylaldehyde,

ethanealdehyde, acrylaldehyde, crotonaldehyde, phenacetaldehyde,

cinamaldehyde.

Examples of the amine compound represented by the

forumla(9) are 2-aminophenol, 4-methyl-2-aminophenol, 5-methyl-2

-aminophenol, 4-sulfo-2-aminophenol, 5-sulfo-2-aminophenol, 4-

methoxy-2-aminophenol, 5-methylsulfonyl-2-aminophenol, 4-methyl

sulfamoyl-2-aminophenol, 4-dimethylsulfamoyl-2-aminophenol, 5-

nitro-2-aminophenol, 4-bromo-2-aminophenol, 4,6-disulfo-2-

aminophenol, 2-acetylamino-6-aminophenol-4-sulfonic acid,

6-nitro-4-sulfo-2-aminophenol, 4-nitro-6-sulfo-2-aminophenol, 4-

acetylamino-6-sulfo-2-aminophenol,

4-chloro-6-sulfo-2-aminophenol, 6-chloro-4-sulfo-2-aminophenol,

4-methylsulfonyl-2-aminophenol, 4-buthylsulfonyl-2-aminophenol,

4-ethylsulfonyl-2-aminophenol, 4-sulfamoyl-2-aminophenol, 1 -

amino-2-hydroxynaphthalene-4,6-disulfonic acid, l-amino-2-

hydroxynaphthalene-6-chloronaphthalene-4- sulfonic acid, 4-

methylol-6-sulfo-2-aminophenol.

Aromatic amine represented by the above formula(4) can be

produced by alkylating aromatic amine of the below formula(ll ) in

the presence of alkylating agent such as alkylhalide, dialkylsulfate,

monosubstituted ethylene oxide:

Examples of alkylhalide are halides such as methylchloride,

ethylchloride, n-propylchloride, isopropylchloride, n-buthylchloride,

isobuthylchloride, sec-buthylchloride, methylbromide, ethylbromide,

n-propylbromide, isopropylbromide, n-buthylbromide, isobuthyl

bromide, and sec-buthylbromide; and examples of mono

substituted ethylene are acrylonitrile, acrylic acid, methylacrylate,

ethylacrylate, acrylamide, and binylsulfonic acid.

Examples of dialkylsulfate are dimethylsulfate, diethylsulfate

and dipropylsulfate; and examples of oxide are ethyleneoxide,

propyleneoxide, glycol, trimethyleneoxide, /3-buthyloxide, 2-methyl-

α-buthyleneoxide, 2-ethyl-3-methyleneoxide, methoxyethyleneoxide,

methoxyleneoxide and n-buthoxyyleneoxide.

Aromatic amine compound of the above formula(l l ) can be

produced by esterizing or halogenizing a compound of the below

formula(12):

H2N-D-SO2CH2CH2OH (12)

Examples of aromatic amine compound represented by the

above formula(l l ) which cna be produced by the said process, are

l -aminobenzene-2,3-/3-sulfatoethy lsulfone, l-aminobenzene-2,4-/3-

sulfatoethy lsulfone, 1 -aminobenzene-3-phosphatoethylbenzene,

l-amino-4-methylbenzene-3-#-sulfatoethylsulfone,

l-aminobenzene-3-0-phosphatoethylbenzens,

l -aminobenzene-4-methoxybenzens-3-/ϊ-sulfatoethy lsulfone,

l-amino-2,5-dimethylbenzene-4-jS-sulfatoethylsulfone,

l -amino-4-methoxybenzene-4-0-sulfatoethylsulfone,

l -amino-4-chlorobenzene-4-0-sulfatoethylsulfone,

l -amino-4-methoxybenzene-5-#-sulfatoethylsulfone,

2-aminonaphthalene-8-(5-sulfatoethylsulfone-6- sulfonic acid,

2-aminonaphthalene-8-/3-sulfatoethylsulfone,

l -amino-2,5-dimethoxybenzene-4- vinylsulfone,

l -amino-2-methoxy-5-methylbenzene-4-0-sulfatoethylsulfone,

2-aminonaphthalene-4,5,6-/J-sulfatoethylsulfone,

2-aminonaphthalene-4,5,7-/3-sulfatoethy lsulfone,

l -amino-2-bromobenzene-4- vinylsulfone,

2-amino-8-sulfonaphthalene-6-i3-sulfatoethylsulfone,

2-aminonaphthalene-8-)3-phosphatoethylsulfone-6- sulfonic acid,

2-aminonaphthalene-8-vinylsulfone-6-sulfonic acid,

l-amino-2-methoxy-5-methylbenzene-4-0-chloroethy lsulfone,

l -aminobenzene-2,3- vinylsulfone, l-aminobenzene-2,4-vinylsulfone,

l-amino-2-methoxy-5-chlorobenzene-4-j3-chloroethylsulfone ,

l -amino-2-methoxy-5-chlorobenzene-4- vinylsulfone,

l-amino-2-ethoxy-5-chlorobenzene-4-iS-chloroethylsulfone,

l-amino-2-ethoxy-5-chlorobenzene-4-viny lsulfone,

2 -aminonaphthalene-8-0 - sulf atoethy lsulfone- 1 - sulfonic acid,

5-chloroaniline-2-/?-sulfatoethy lsulfone,

5-sulfoaniline-2-0-sulfatoethylsulfone,

aniline-2-ι3-thiosulfatoethylsulfone, 5-chloroaniline-2-(3-thiosulfato

ethylsulfone, 5-sulfoaniline-2-|3-thiosulfatoethylsulfone, aniline-2-i3

-phosphatoethylsulfone, 5-chloroaniline-2-/3-phosphatoethylsulfone,

5-sulfoaniline-2-β-phosphatoethylsulfone, 5-chloroaniline-2-

vinylsulfone, 5- sulfoaniline- 2 -vinylsulfone, aniline-2- ^β -chloro

ethylsulfone, 5-chloroaniline-2-|3-chloroethylsulfone and 5-

sulfoaniline-2- S-chloroethy lsulfone.

Best Mode for Conducting the Invention

Process for preparing formazan derivatives according to the

present invention is more specifically described in the following

examples, however the present invention is not intended to be

restricted to the examples.

Example 1

Phenylhydrazine-2,5-disulfonic acid is produced by diazotating

aniline- 2,5-disulfonic acid of the formula(7). 35.6 parts of

benzaldehyde phenylhydrazone-2,5- sulfonic acid is produced by

reacting the above obtained phenylhydrazine-2,5-disulfonic acid

with benzaldehyde of the formula(δ). 35.6 parts of

phenylhydrazone-2,5- sulfonic acid is dispersed in 200 parts of

water, and acidity of the dispersion is controled to pH 4 with a

solution of 10% sodium hydroxide. 24.6 parts of 3-acetylamino

-2-hydroxyaniline-5~sulfonic acid of the formulaO) is diazotated

and added to the said pH-controled solution with stirring. Aquous

solution obtained by solubilize 26.2 parts of copper sulfate to water

is added thereto. pH of the solution is controled in the range

from 3 to 5 with 20% sodium carbonate aquous solution obtained

by solubilizing sodium carbonate and reaction is conducted for one

hour. The reaction is conducted at elevated temperature of 40 to

50 "C for one hour to complete the reacition. The reaction solution

is cooled to the room temperatrue, and 20% of sodium chloride

based on the entire solution is added to this solution, and stirred

for one hour. The precipitate is filtered out to give formazan

derivatives. The formazan derivatives is added to a solution of

sodium hydroxide, hydro lized by heating at temperatureof 90 "C for

one hour to obtain the product. As a result, dicyclic formazan

derivatives represented by the below formula is obtained by

removing acetyl group from the product:

Example 2

Formazan derivatives obtained in Example 1 is acidified to pH

3 to 4 with concentrated hydrochloric acid, and 16.6 parts of

cyanuric chloride are added thereto with maintaining them at

temperature of 5t for one hour to give formazan derivatives

represented by the below formula(3):

Example 3

To a solution containing formazan derivatives obtained in

Example 2 are added 27.8 parts of l-N-ethylaminobenzene-3- 5-

sulfatoethy lsulfone produced by reacting l-aminobenzene-3-ιS-

sulfatoethylsulfone with diethylsulfate. The mixture is heated to

temperature of 40 ^* , and is maintained at pH 5 to 6 for 25 hours.

To the reaction -completed solution is added sodium chloride to

give preciitate which is filtered out to obtain blue(603 nm)

formazan derivatives of the below formula:

Examples 4 to 44

The procedures described in Example 3 are repeated in a

solution containing formazan derivatives obtained in Examples 1

and 2 by using the following compounds instead of compounds

used in Examples 1 and 2. As a result, blue(603 ± 2nm) formazan

derivatives are obtained.

Example No. Used compounds

4 l-N-ethylaminobenzene-4- β -sulfatoethy lsulfone

5 l-N-ethylaminobenzene-2- β -sulfatoethy lsulfone

6 l-N-methylamino-4-methoxybenzene-3- β -sulfatoethylsulfone

7 l-N-methylaminobenzene-3- β -sulfatoethylsulfone

8 l-N-methylaminobenzene-4- β -sulfatoethylsulfone

9 l-N -methylaminobenzene-2- β -sulfatoethylsulfone

10 l-N-methylamino-4-methoxybenzene-3- β -sulfatoethylsulfone

11 1 -N- β -carbamoylethylaminobenzene-3- β -sulfatoethylsulfone

12 1 -N- β -carbamoylethylaminobenzene-4- β -sulfatoethylsulfone

13 1 -N- β -carbamoylethylaminobenzene-2- β -sulfatoethylsulfone

14 1 -N - yff -carbamoylmethylamino-4-methoxybenzene-3-

β -sulfatoethylsulfone

15 l -N -n-propylaminobenzene-3- ? -sulfatoethylsulfone

16 l-N-n-propylaminobenzene-4- β -sulfatoethylsulfone

17 l-N-n-propylaminobenzene-2- £ -sulfatoethylsulfone

18 1 -N-n-propylamino-4-methoxybenzene-3- β - sulfatoethylsulfone

19 1 -N- β -cyanoethylaminobenzene-3- β - sulfatoethylsulfone

20 1 -N- β -cyanoethylaminobenzene-4- β -sulfatoethylsulfone

21 1 -N- β -cyanoethylaminobenzene-2- β -sulfatoethylsulfone

22 1-N- β -cyanoethylamino-4-methoxybenzene-3- β -

sulfatoethylsulfone

3 1 -N- β -hydroxyethylaminobenzene-3- β -sulfatoethylsulfone

4 1-N- β -hydroxyethylaminobenzene-4- β -sulfatoethylsulfone

5 1-N- β -hydroxyethylaminobenzene-2- β -sulfatoethylsulfone

6 1-N- /5 -hydroxyethylaminobenzene-4-methoxybenzene

-3- β -sulfatoethylsulfone

27 1 -N- β -sulfatoethylaminobenzene-3- β -sulfatoethylsulfone

28 1-N- β -methoxycarbonylethylaminobenzene-3- β -

sulfatoethylsulfone

29 l-N-ethylamino-2-rnethoxybenzene-5- β -sulfatoethylsulfone

30 l-N-ethylamino-2,4-dirnethylbenzene-5- ^ -sulfatoethylsιιlfone

31 l-N-ethylamino-2-methoxy-5-methylbenzene-3- β -

sulfatoethylsulfone

32 l -N-ethylaminonaphthalene-6- β -sulfatoethylsulfone

33 1 -N-ethylamino-8-sulfonaphthalene-6- β -sulfatoethylsulfone

34 l-N-methylaminonaphthalene-8- β -sulfatoethylsulfone

35 l -aminobenzene-4- β -sulfatoethylsulfone

36 l-aminobenzene-2- 9 -sulfatoethylsulfone

37 l-aminobenzene-3- # -sulfatoethylsulfone

38 l-amino-4-methoxybenzene-3- /3 -sulfatoethylsulfone

39 l -amino-2-methoxybenzene-5- /9 -sulfatoethylsulfone

40 l-amino-2-methoxy-5-methylbenzene-5- β -sulfatoethylsulfone

41 1 -amino-2,4-dimethylbenzene-5- β -sulfatoethylsulfone

42 l -aminonaphthalene-6- β -sulfatoethylsulfone

43 l -amino-8-sulfonaphthalene-6- β -sulfatoethylsulfone

44 l -aminonaphthalene-8- β -sulfatoethylsulfone

Examples 45

The reaction is conducted at the same condition and procedure

as those of Example 1, except that phenylhydrazine-2.4-disulfonic

acid as a starting material is used instead of phenylhydrazine

-2.5-disulfonic acid to give formazan derivatives represented by

the below formula.

Examples 46

The reaction between formazan derivatives produced from

Example 45 and cyanurilchloride of Example 2 is conducted at the

same reaction condition to give formazan derivatives represented

by the below formula:

Examples 47

Formazan derivatives produced in Example 46 is reacted with

the same compounds and process as those of Example 3 to give a

blue(606 nm) formazan derivatives:

Examples 48 to 88

Formazan derivatives produced in Example 46 is reacted with

the same compounds and process as those of Example 3, except

that the following compounds are used instead of 1 -N-

ethylaminobenzene-3-ø-sulfatoethylsulfone. As a result, blue(606±

2nm) formazan derivatives are obtained.

Example No Used compounds

48 l-N-ethylaminobenzene-4- β -sulfatoethylsulfone

49 l-N-ethylaminobenzene-2- β -sulfatoethylsulfone

50 1 -N-etJιylammo-4-methoxybenzene-3- β -sulfatoethylsulfone

51 l-N-methylaminobenzene-3- β -sulfatoethylsulfone

52 l-N-methylaminobenzene-4- β -sulfatoethylsulfone

53 l-N-methylaminobenzene-2- β -sulfatoethylsulfone

54 l-N-methylamino-4-methoxybenzene-3- β -sulfatoethylsulfone

55 1 -N- β -carbaπrøylethylaminobenzene-3- β -sulfatoethylsulfone

56 1 -N- β -carbamoylethylaminobenzene-4- β -sulfatoethylsulfone

57 1 -N- β -carbamoylethylaminobenzene-2- β -sulfatoethylsulfone

58 1 -N- yS -carbamoylmethylamino-4-methoxybenzene-3-

β -sulfatoethylsulfone

59 l -N-n-propylaminobenzene-3- β -sulfatoethylsulfone

60 l-N-n-propylaminobenzene-4- ? -sulfatoethylsulfone

61 l-N-n-propylaminobenzene-2- # -sulfatoethylsulfone

62 1 -N-n-propy lamino-4-methoxybenzene-3- β - sulfatoethylsulfone

63 1-N- β -cyanoethylaminobenzene-3- β -sulfatoethylsulfone

64 1-N- β -cyanoethylaminobenzene-4- β -sulfatoethylsulfone

65 1-N- β -cyanoethylaminobenzene-2- β -sulfatoethylsulfone

66 1-N- β -cyanomethylamino-4-methoxybenzene-3- β -

sulfatoethylsulfone

67 1 -N- β -hydroxyethylaminobenzene-3- β -sulfatoethylsulfone

68 1-N- β -hydroxyethylaιrrinobenzene-4- β -sulfatoethylsulfone

69 1-N- β -hydroxyethylaminobenzene-2- β -sulfatoethylsulfone

70 1-N- β -hydroxyethylaminobenzene-4-methoxybenzene-3- β -

sulfatoethylsulfone

71 1 -N- β -sulf atoethylaminobenzene-3- β -sulfatoethylsulfone

72 1-N- β -methoxycarbonylethylaminobenzene-3- β -

sulfatoethylsulfone

73 l-N-methylamino-2-methoxybenzene-5- β -sulfatoethylsulfone

74 l-N-e ylamino-2,4-dimethylbenzene-5- β -sulfatoethylsulfone

75 l-N-ethylamino-2-methoxy-5-methylbenzene-3- £ -

sulfatoethylsulfone

76 l-N-ethylaminonaphthalene-6- β -sulfatoethylsulfone

77 l-N-ethylaιrano-8-sulfonaphthalene-6- tf -sulfatoethylsulfone

78 l -N -methylaminonaphthalene-8- β -sulfatoethylsulfone

79 l-aminobenzene-4- β -sulfatoethylsulfone

80 l-aminobenzene-2- β -sulfatoethylsulfone

81 l-aminobenzene-3- β -sulfatoethylsulfone

82 l -amino-4-methoxybenzene-3- # -sulfatoethylsulfone

83 l -amino-2-methoxybenzene-5- # -sulfatoethylsulfone

84 1 -amino-2-methoxy-5-methylbenzene-5- β -sulfatoethylsulfone

85 1 -amino-2,4-dimethylbenzene-5- β -sulfatoethylsulfone

86 l-aminonaphthalene-6- # -sulfatoethylsulfone

87 l-amino-8-sulfonaphthalene-6- # -sulfatoethylsulfone

88 l-aminonaphthalene-8- β -sulfatoethylsulfone

Experiments for dyeing property for formazan derivatives of

the present invention are conducted.

Experiment 1

0.1 part of metal formazan derivatives having the below

formula described in EP 0,099,721 and 0.1 part of metal formazan

derivatives produced in Example 3 are separately melted in 200

parts of water to give a dyeing solution.

10 parts of sodium sulfate are added to the solution and then 10

parts of cotton cloth are added thereto. The solution is heated to

temperature of 60 ^* C . At this temperature, 4 parts of sodium

hydrogen carbonate are added thereto and stirred for one hour.

Dyed cloth is washed by water, washed again by boiled soup

water for 10 minutes, then washed by water to remove soup

water, and dried. Dyeing property and remained concentration

after washing soup water are compared and the results are

shown in the below table.

Experiment 2

The procedure described in Experiment 1 is repeated, except

that metal formazan compound of EP 0,099,721 and 0.2 part of

metal formazan compound produced in Example 3 are solubilized in

200 parts of water to form a dyeing solution. Dyeing property

and remained concentration after washing soup water are

compared and the results are shown in the below table.

Experiment 3

The procedure described in Experiment 1 is repeated, except

that metal formazan compound of EP 0,099,721 and 0.4 part of

metal formazan compound produced in Example 3 are solubilized in

200 parts of water to form a dyeing solution. Dyeing property

and remained concentration after washing soup water are

compared and the results are shown in the below table.

Sunlight fastness and washing fastness for the dried cloth

used in the experiments of the dyeing property are determined

according to JIS L 0841 and JIS L 0844, and chlorine fastness in

20 ppm solution of sodium hypochloride is determined. The

results are shown in Table.

TABLE

EP The Present 0,099,721 Invention

Dyeing Property 100 104.41

Experiment 1 Remained Concentration After Washing of Soup Water 100 76.64

Dyeing Property 100 105.63

Experiment 2 Remained Concentration After Washing of Soup Water 100 71.38

Dyeing Property 100 105.59

Remained Concentration After Washing of Soup Water 100 73.35

Experiment 3 Sunlight Fastness 5 < 5-6

Washing Fastness 4 5

Chlorine Fastness 4 4

As seen from the above table, dicyclic metal formazan

compound has excellent dyeing property as compared with the

conventional tricyclic metal formazan compound. Further, the dye

stuff withstand removing from fiber after washing the dyed cloth

with soup water as well as has excellent post-dyeing sunlight and

washing fastness.

Dicyclic metal formazan compound of the formula(l) can be

also used as reactive dye in fiber having dydroxy group or amido

group.