New thiol/disulfide naphthylimide fluorescent compounds useful to make a tinctorial composition for human keratinous fibers, particularly for lightening hair

摘要

Thiol/disulfide naphthylimide fluorescent compounds (A) and their salts of organic/mineral acid, optical isomers, geometrical isomers or solvates e.g. hydrates, are new. Thiol/disulfide naphthylimide fluorescent compounds (A) of formulae (I)-(VI) and their salts of organic/mineral acid, optical isomers, geometrical isomers or solvates e.g. hydrates, are new. Either R1a : aryl(1-4C)alkyl, 1-6C alkyl (all optionally substituted by OH or (di)(1-4C alkyl)amine); or R1aN : 5-7 membered heterocyle (optionally carry N); R1b, R1c, R1d : H, aryl(1-4C)alkyl, 1-6C alkyl (all optionally substituted); E : (1-6C)alkylenyl; R1f : (R) 3N +>,OH, (di)(1-6C alkyl)amine or non-cationic heteroaryl (optionally substituted) e.g. imidazolyl; R : heteroaryl (optionally substituted by 1-3C alkyl); M : anionic counter ion; either R1g : H, halo, NH 2, (di) (1-4C)alkylamine, CN, COOH, OH, CF 3, acylamine, 1-4C alkoxy, (poly)2-4C-hydroxyalkoxy, (1-4C)alkylcarbonyloxy-(1-4C)alcoxycarbonyl, (1-4C)alkylcarbonylamine, carbamoyl, (1-4C)alkylsulfonylamine, amino-sulfonyl, (1-16C)alkyl (optionally substituted by 1-12C alkoxy, OH, CN, COOH, NH 2 or (di)(1-4C)alkylamine); or R1gN : 5-7 membered heterocycle; T1 : covalent bond, SO 2, O, S, N(R1), N +>(R) 2 or C(O); R1 : H, 1-4C alkyl, 1-4C (hydroxy)alkyl or aryl(1-4C)alkyl, optionally cationic heterocycloalkyl or heteroaryl having 2 heteroatoms; m, n : 0-6; Y 1 : H, alkaline(earth)metal, N +>(R2) 4 or P +>(R2) 4; and R2 : H, 1-4C alkyl or SH. Provided that the sum of m and n is 10. Independent claims are included for: (1) a tinctorial composition comprising (A) and a reductant; and (2) a process of dyeing keratinous fibers comprising applying the composition in the presence of a reducing agent to reduce the disulfide linkages. [Image] [Image] [Image] [Image] [Image].