Substituted 2-aminoalky-1,4-diaminobenzene compounds and oxidation dye precursor compositions containing same

An oxidation dye precursor composition for oxidative dyeing of keratin fibers, said dye precursor composition comprising at least one developer compound and at least one coupler compound;

• wherein said at least one coupler compound is selected from the group consisting of 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-methylbenzene, 2,4-diamino-1-(2-hydroxyethoxy)-5-methylbenzene, 2,4-di[(2-hydroxyethyl)-amino]-1,5-dimethoxybenzene, 2,3-diamino-6-methoxypyridine, 3-amino-6-methoxy-2-(methylamino)pyridine, 2,6-diamino-3,5-dimethoxypyridine, 3,5-diamino-2,6-dimethoxypyridine, 1,3-diaminobenzene, 2,4-diamino-1-(2-hydroxyethoxy)benzene, 2,4-diamino-1,5-di(2-hydroxyethoxy)-benzene, 1-(2-aminoethoxy)-2,4-diaminobenzene, 2-amino-1-(2-hydroxyethoxy)-4-methyl-aminobenzene, 2,4-diaminophenoxyacetic acid, 3-[(di(2-hydroxyethyl)-amino]-aniline, 4-amino-2-di[(2-hydroxyethyl)amino]-1-ethoxybenzene, 5-methyl-2-(1-methylethyl)phenol, 3-[(2-hydroxyethyl)amino]-aniline, 3-[(2-amino-ethyl)-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)amino-toluene, 4-hydroxyindole, 3-dimethylaminophenol, 3-diethylaminophenol, 5-amino-2-methylphenol, 5-amino-4-fluoro-2-methylphenol, 5-amino-4-methoxy-2-methylphenol, 5-amino-4-ethoxy-2-methylphenol, 3-amino-2,4-dicholorophenol, 5-amino-2,4-dichlorophenol, 3-amino-2-methylphenol, 3-amino-2-chloro-6-methylphenol, 3-aminophenol, 2-{(3-hydroxyphenyl)-amino}acetamide, 5-[(2-hydroxyethyl)amino]-2-methylphenol, 3-[(2-hydroxyethyl)-aminophenol, 3-[(2-methoxyethyl)amino]phenol, 5-amino-2-ethylphenol, 2-(4-amino-2-hydroxy-phenoxy)ethanol, 5-[(3-hydroxypropyl)amino]-2-methylphenol, 3-[(2,3-dihydroxy-propyl)amino]-2-methylphenol, 3-[(2-hydroxyethyl)-amino]-2-methylphenol, 2-amino-3-hydroxypyridine, 5-amino-4-chloro-2-methylphenol, 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-methyl-1-naphthol acetate, 1,3-dihydoxybenzene, 1-chloro-2,4-dihydroxybenzene, 2-chloro-1,3-dihydroxybenzene, 1,2-dichloro-3,5-dihydroxy-4-methylbenzene, 1,5-dichloro-2,4-dihydroxy-benzene, 1,3-dihydroxy-2-methylbenzene, 3,4-methylenedioxyphenol, 3,4-methylenedioxyaniline, 5-[(2-hydroxyethyl)amino]-1,3-benzodioxole, 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-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole and 2,3-indolindione;
• and
• wherein said at least one developer compound includes at least one substituted 2-aminoalkyl-1,4-diaminobenzene compound of the formula (I):
• wherein
• R1, R2, R3 and R4, independently of each other, are each hydrogen, a C1- to C6-alkyl group, a C1- to C4-hydroxyalkyl group, a C2- to C4-dihydroxyalkyl group or a C1- to C4-alkoxy-(C1- to C2-)alkyl group, or R1 and R2 together with N form a four member to eight member aliphatic ring;
• wherein at least two of said R1, R2, R3 and R4 represent hydrogen and wherein R3 and R4 are not both simultaneously a C1- to C6-alkyl group;
• R5 represents hydrogen, a halogen atom, a C1- to C4-alkyl group, a C1- to C4-hydroxyalkyl group or a C1- to C4-alkoxy group;
• R6 and R7, independently of each other, each represent hydrogen, a C1- to C2-alkoxy group, a C1- to C6-alkyl group, a C1- to C6-alkenyl group, a C1- to C4-hydroxyalkyl group, a C3- to C4-dihydroxyalkyl group, a C1- to C4-aminoalkyl group, a C1- to C4-dimethylaminoalkyl group, a C1- to C4-acetylaminoalkyl group, a C1- to C4-methoxyalkyl group, a C1- to C4-ethoxyalkyl group, a C1- to C4-cyanoalkyl group, a C1- to C4-carboxyalkyl group, a C1- to C4-aminocarbonylalkyl group, a pyridylmethyl group, a furfuryl group, a hydrogenated furfuryl group, a substituted pyridyl group, a group of the formula II:
• a group of the formula III:
• a group of the formula IV:
• wherein at least one of R6 and R7 is not hydrogen or R6 and R7 together with N form one of the following rings:
• R8 represents hydrogen or a C1- to C6-alkyl group;
• R9 represents hydrogen, a carboxy group or an aminocarbonyl group;
• R10 and R11, independently of each other, each represent hydrogen, a hydroxy group, an aminocarbonyl group, a methylthiomethyl group, a substituted phenyl group having a phenyl group substituent or a hydroxy group substitutent or a group of the formula:
• wherein
• R12, R13, R14, R15 and R16 are each, independently of each other, hydrogen, a halogen atom, a cyano group, a hydroxy group, a C1- to C4-alkoxy group, a C1- to C4-hydroxyalkoxy group, a C1- to C6-alkyl group, a C1- to C4-alkylthioether group, a mercapto group, a nitro group, an amino group, an alkylamino group, a hydroxyalkylamino group, a dialkylamino group, a di(hydroxyalkyl)amino group, a (dihydroxyalkyl)amino group, a (hydroxyalkyl)-alkylamino group, a trifluoromethane group, a —C(O)H group, a —C(O)CH3 group, a —C(O)CF3 group, a —Si(CH3)3 group, a C1- to C4-hydroxyalkyl group, a C3- to C4-dihydoxyalkyl group, or two of the groups R12 to R16 next to each other form an —O—CH2—O— bridge;
• R17 represents a C1- to C4-alkyl group or a C1- to C4-hydroxyalkyl group;
• R18 represents hydrogen or a C1- to C6-alkyl group;
• R19 represents one or more hydrogen, hydroxy, carboxy, aminocarbonyl or hydroxymethyl group or groups;
• and
• R20 represents hydrogen or a C1- to C6-alkyl group, with the proviso that R1, R2 and R8 are not each hydrogen when (i) R5 is in the 5-position of the aromatic ring and R5 is hydrogen, a C1- to C4-alkyl group or a halogen atom, and when (ii) R6 and R7, independently of each other, are a C1- to C4-alkyl group or a phenyl group;
• or
• a physiologically compatible, water-soluble salt of said at least one substituted 2-aminoalkyl-1,4-diaminobenzene compound of the formula (I).