1,3-diamino-4-(aminomethyl)—benzene derivatives and colorants containing the said compounds

1. A 1,3-diamino-4-(aminomethyl)-benzene derivative compound of the formula (I), or a physiologically tolerated, water-soluble salt thereof:

wherein R1 and R2, independently of one another, each represent hydrogen, a C 1 -C 6 alkyl group, a C 2 -C 4 hydroxyalkyl group or a C 3 -C 4 dihydroxyalkyl group,

R3 is hydrogen or a C 1 -C 4 alkyl group,

R4 and R5, independently of one another, each represent hydrogen, a C 1 -C 2 alkoxy group, a saturated C 1 -C 6 alkyl group, an unsaturated C 3 -C 6 alkyl group, a C 2 -C 4 hydroxyalkyl group, a C 3 -C 4 dihydroxyalkyl group, a C 2 -C 4 amino alkyl group, a C 2 -C 4 dimethylamino alkyl group, a C 2 -C 4 acetylamino alkyl group, a C 2 -C 4 methoxyalkyl group, a C 2 -C 4 ethoxyalkyl group, a C 1 -C 4 cyanalkyl group, a C 1 -C 4 carboxy alkyl group, a C 1 -C 4 aminocarbonylalkyl group, a pyridyl methyl group, a furfuryl group, a thienyl methyl group, a substituted pyridyl group or a group of formula (II)

or R4 and R5 together with N form a ring of formula

wherein R6, R7, R8, R9 and R10, independently of one another, each represent hydrogen, a halogen atom, a cyano group, a hydroxy group, a C 1 -C 4 alkoxy group, a C 2 -C 4 hydroxyalkoxy group, a C 1 -C 6 alkyl group, a C 1 -C 4 alkyl thioether group, a mercapto group, a nitro group, an amino group, an alkylamino group, a di(C 1 -C 6 alkyl)amino group, a dihydroxy-(C 3 -C 4 )alkyl)amino group, a di(C 1 -C 4 hydroxyalkyl)amino group, a (C 1 -C 4 hydroxyalkyl)-(C 1 -C 6 alkyl)-amino group, a trifluoromethane group, a —C(O)H group, a —C(O)CH 3 group, a —C(O)CF 8 group, a —Si(CH 3 ) 3 group, a C 1 -C 4 hydroxyalkyl group, a C 2 -C 4 dihydroxyalkyl group, a carboxy group or a pyrrolidine group or two adjacent ones of said R6 to R10 form an —O—CH 2 —O— link,

R11 is hydrogen, a hydroxy group, a carboxy group, an amino-carbonyl group or a hydroxymethyl group;

R12 is hydrogen or a C 1 -C 6 alkyl group; and

n is 0 or 1;

with the proviso that at least one of said R1 to R5 groups is not hydrogen.

2. An agent for oxidative dyeing of keratin fibers containing at least one coupler substance and at least one developer substance, wherein said at least one coupler substance comprises at least one 1,3-diamino-4-(aminomethyl)-benzene derivative compound of the formula (I) or a physiologically tolerated, water-soluble salt thereof;

wherein R1 and R2, independently of one another, each represent hydrogen, a C 1 -C 6 alkyl group, a C 2 -C 4 hydroxyalkyl group or a C 3 -C 4 dihydroxyalkyl group, R3 is hydrogen or a C 1 -C 4 alkyl group,

R4 and R5, independently of one another, each represent hydrogen, a C 1 -C 2 alkoxy group, a saturated C 1 -C 8 alkyl group, an unsaturated C 3 -C 6 alkyl group, a C 2 -C 4 hydroxyalkyl group, a C 3 -C 4 dihydroxyalkyl group, a C 2 -C 4 amino alkyl group, a C 2 -C 4 dimethylamino alkyl group, a C 2 -C 4 acetylamino alkyl group, a C 2 -C 4 methoxy alkyl group, a C 2 -C 4 ethoxy alkyl group, a C 1 -C 4 cyanalkyl group, a C 1 -C 4 carboxyalkyl group, a C 1 -C 4 aminocarbonyl alkyl group, a pyridyl methyl group, a furfuryl group, a thienyl methyl group, a substituted pyridyl group or a group of formula (II)

or R4 and R5 together with N form a ring of formula

wherein R6, R7, R8, R9 and R10, independently of one another, each represent hydrogen, a halogen atom, a cyano group, a hydroxy group, a C 1 -C 4 alkoxy group, a C 2 -C 4 hydroxyalkoxy group, a C 1 -C 6 alkyl group, a C 1 -C 4 alkyl thioether group, a mercapto group, a nitro group, an amino group, an alkylamino group, a di(C 1 -C 6 alkyl)amino group, a (dihydroxy(C 3 -C 4 )alkyl)amino group, a di(C 1 -C 4 hydroxyalkyl)amino group, a (C 1 -C 4 hydroxyalkyl)-(C 1 -C 6 alkyl)amino group, a trifluoromethane group, a —C(O)H group, a —C(O)CH 3 group, a —C(O)CF 3 group, a —Si(CH 3 ) 3 group, a C 1 -C 4 hydroxyalkyl group, a C 2 -C 4 dihydroxyalkyl group, a carboxy group or a pyrrolidine group or two adjacent ones of said R6 to R10 form an —O—CH 2 —O link,

R11 is hydrogen, a hydroxy group, a carboxy group, an amino carbonyl group or a hydroxy methyl group;

R12 is hydrogen or a C 1 -C 6 alkyl group; and

n is 0 or 1;

with the proviso that at least one of said R1 to R5 groups is not hydrogen.

3. The agent as defined in claim 2 , wherein at least one of said R1, R2 and R3 is hydrogen.

4. The agent as defined in claim 2 , wherein one of said R4 and R5 is a C 2 -C 6 hydroxyalkyl group, an unsaturated C 3 -C 6 alkyl group, a C 2 -C 4 aminoalkyl group or a C 1 -C 4 alkyl group.

5. The agent as defined in claim 2 , wherein said at least one 1,3-diamino-4-(aminomethyl)-benzene derivative compound is 1,3-diamino-4-(methylaminomethyl)benzene, 1,3-diamino-(4-allylaminomethyl)-benzene, 2-(2,4-diamino-benzylamino)-ethanol or 1,3-diamino-4-((2-aminoethylamino)-methyl)-benzene.

6. The agent as defined in claim 2 , containing from 0.005 to 20 percent by weight of said at least one 1,3-diamino-4-(aminomethyl)-benzene derivative compound.

7. The agent as defined in claim 2 , wherein the at least one developer substance is selected from the group consisting of 1,4-diamino-benzene, 1,4-diamino-2-methylbenzene, 1,4-diamino-2,6-dimethylbenzene, 1,4-diamino-3,5-diethylbenzene, 1,4-diamino-2,5-dimethylbenzene, 1,4-diamino-2,3-dimethylbenzene, 2-chloro-1,4-diaminobenzene, 1,4-diamino-2-(thiophene-2-yl)-benzene, 1,4-diamino-2-(thiophene-3-yl)-benzene, 1,4-diamino-2-(pyridine-3-yl)-benzene, 2,5-diaminobiphenyl, 1,4-diamino-2-methoxymethylbenzene, 1,4-diamino-2-aminomethylbenzene, 1,4-diamino-2-hydroxymethylbenzene, 1,4-diamino-2-(2-hydroxyethoxy)-benzene, 2-(2-acetylamino)ethoxy)-1,4-diaminobenzene, 4-phenylaminoaniline, 4-dimethylamino-aniline, 4-diethyl-aminoaniline, 4-dipropylaminoaniline, 4-[ethyl(2-hydroxyethyl)amino]aniline, 4-[di(2-hydroxyethyl)amino]-aniline, 4-[di(2-hydroxyethyl)-amino]-2-methyl-aniline, 4-[(2-methoxyethyl)amino]-aniline, 4-[(3-hydroxy-propyl)amino]aniline, 4-[(2,3-dihydroxypropyl)amino]-aniline, 1,4-diamino-2-(1-hydroxyethyl)benzene, 1,4-diamino-2-(2-hydroxyethyl)-benzene, 1,4-diamino-2-(1-methylethyl)benzene, 1,3-bis[(4-aminophenyl)(2-hydroxyethyl)amino]-2-propanol, 1,4-bis[(4-amino-phenyl)amino]-butane, 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane, 4-amino-phenol, 4-amino-3-methyl-phenol, 4-amino-3-(hydroxymethyl)-phenol, 4-amino-3-fluorophenol, 4-methylaminophenol, 4-amino-2-(aminomethyl)-phenol, 4-amino-2-(hydroxymethyl)-phenol, 4-amino-2-fluoro-phenol, 4-amino-2-[(2-hydroxyethyl)-amino]methyl-phenol, 4-amino-2-methyl-phenol, 4-amino-2-(methoxymethyl)-phenol, 4-amino-2-(2-hydroxyethyl)phenol, 5-aminosalicylic acid, 2,5-diaminopyridine, 2,4,5,6-tetraaminopyrimidine, 2,5,6-triamino-4-(1H)-pyrimidone, 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole, 4,5-diamino-1-(1-methylethyl)-1H-pyrazole, 4,5-diamino-1-[(4-methylphenyl)methyl]-1H-pyrazole, 1-[(4-chlorophenyl)methyl]-4,5-diamino-1H-pyrazole, 4,5-diamino-1-methyl-1H-pyrazole, 2-aminophenol, 2-amino-6-methylphenol, 2-amino-5-methylphenol and 1,2,4-trihydroxybenzene.

8. The agent as defined in claim 2 , wherein said at least one coupler substance includes at least one member selected from the group consisting of N-(3-dimethylamino-phenyl)urea, 2,6-diaminopyridine, 2-amino-4-[(2-hydroxyethyl)amino]anisole, 2,4-diamino-1-fluoro-5-methylbenzene, 2,4-diamino-1-methoxy-5-methylbenzene, 2,4-diamino-1-ethoxy-5-methyl-benzene, 2,4-diamino-1-(2-hydroxyethoxy)-5-methylbenzene, 2,4-di[(2-hydroxy-ethyl)amino]-1,5-dimethoxybenzene, 2,3-diamino-6-methoxy-pyridine, 3-amino-6-methoxy-2-(methylamino)-pyridine, 2,6-diamino-3,5-dimethoxy-pyridine, 3,5-diamino-2,6-dimethoxy-pyridine, 1,3-diaminobenzene, 2,4-diamino-1-(2-hydroxyethoxy)-benzene, 1,3-diamino-4-(2,3-dihydroxypropoxy)-benzene, 1,3-diamino-4-(3-hydroxy-propoxy)-benzene, 1,3-diamino-4-(2-methoxyethoxy)-benzene, 2,4-diamino-1,5-di(2-hydroxyethoxy)-benzene, 1-(2-aminoethoxy)-2,4-diaminobenzene, 2-amino-1-(2-hydroxyethoxy)-4-methylamino-benzene, 2,4-diamino-phenoxyacetic acid, 3-[di(2-hydroxyethyl)amino]-aniline, 4-amino-2-di[(2-hydroxyethyl)amino]-1-ethoxy-benzene, 5-methyl-2-(1-methylethyl)-phenol, 3-[(2-hydroxyethyl)amino]-aniline, 3-[(2-aminoethyl)amino]-aniline, 1,3-di(2,4-diaminophenoxy)-propane, di(2,4-diaminophenoxy)-methane, 1,3-diamino-2,4-dimethoxy-benzene, 2,6-bis-(2-hydroxyethyl)aminotoluene, 4-hydroxyindole, 3-dimethylamino-phenol, 3-diethylamino-phenol, 5-amino-2-methylphenol, 5-amino-4-fluoro-2-methyl-phenol, 5-amino-4-methoxy-2-methyl-phenol, 5-amino-4-ethoxy-2-methyl-phenol, 3-amino-2,4-dichlorophenol, 5-amino-2,4-dichloro-phenol, 3-amino-2-methyl-phenol, 3-amino-2-chloro-6-methylphenol, 3-amino-phenol, 2-[(3-hydroxyphenyl)-amino]acetamide, 5-[(2-hydroxyethyl)amino]-4-methoxy-2-methyl-phenol, 5[(2-hydroxyethyl)-amino]-2-methylphenol, 3-[(2-hydroxyethyl)amino]-phenol, 3-[(2-methoxyethyl)-amino]-phenol, 5-amino-2-ethyl-phenol, 5-amino-2-methoxy-phenol, 2-(4-amino-2-hydroxyphenoxy)ethanol, 5-[(3-hydroxypropyl)amino]-2-methylphenol, 3-[(2,3-dihydroxypropyl)-amino]-2-methylphenol, 3-[(2-hydroxyethyl)amino]-2-methyl-phenol, 2-amino-3-hydroxypyridine, 2,6-dihydroxy-3,4-dimethylpyridine, 5-amino-4-chloro-2-methylphenol, 1-naphthol, 2-methyl-1-naphthol, 1,5-dihydroxy-naphthalene, 1,7-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-methyl-1-naphthol acetate, 1,3-dihydroxybenzene, 1-chloro-2,4-dihydroxybenzene, 2-chloro-1,3-dihydroxybenzene, 1,2-dichloro-3,5-dihydroxy-4-methylbenzene, 1,5-dichloro-2,4-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 3,4-methylenedioxy-phenol, 3,4-methylene-dioxy-aniline, 5-[(2-hydroxyethyl)amino]-1,3-benzodioxol, 6-bromo-1-hydroxy-3,4-methylenedioxybenzene, 3,4-diaminobenzoic acid, 3,4-dihydro-6-hydroxy-1,4(2H)-benzoxazine, 6-amino-3,4-dihydro-1,4(2H)-benzoxazine, 3-methyl-1-phenyl-5-pyrazolone, 5,6-dihydroxyindole, 5,6-dihydroxyindoline, 5-hydroxy-indole, 6-hydroxyindole, 7-hydroxyindole and 2,3-indolindione.

9. The agent as defined in claim 2 , containing a total amount of 0.005 to 20 percent by weight of said at least one developer substance and said at least one coupler substance.

10. The agent as defined in claim 2 , further comprising at least one substantive dye.

11. The agent as defined in claim 2 , having a pH of 6.5 to 11.5.

12. The agent as defined in claim 2 , consisting of a hair-dyeing agent.