Patent FR-2968965-A1 (FR)
Title: Composition, useful for the coloration of keratin fibers, preferably human hair, comprises, in a medium, oxidation base comprising 4,5-diaminopyrazole derivatives and at least one coupler comprising cationic aminopyridine derivatives
Inventor: COUROUX ANNE-MARIE
IPC: A61K8/49
Filed: 2010-12-17
Abstract: Composition (A), comprises, in a medium, at least one oxidation base comprising 4,5-diaminopyrazole derivatives (I) and their addition salts, or solvates and its salts; and at least one coupler comprising cationic aminopyridine derivatives (II), and their addition salts, or solvates and its salts. Composition (A), comprises, in a medium, at least one oxidation base comprising 4,5-diaminopyrazole derivatives of formula (I) and their addition salts, or solvates and its salts; and at least one coupler comprising cationic aminopyridine derivatives of formula (II), and their addition salts, or solvates and its salts. R1-R6 : H or 1-6C alkyl (optionally substituted with at least one substituents of OR, NHR, NRRa1, SR, SOR, SO 2R, COR, COOH, CONH 2, CONHR, CONRRa1, PO(OH) 2, SH, SO 3X, non-cationic heterocycle, Cl, Br or I); X : H, Na, K or NH 4; R, Ra1 : 1-4C alkyl, 1-4C alkenyl, 2-4C hydroxyalkyl, 2-4C aminoalkyl, phenyl (optionally substituted with a halo or 1-4C alkyl, 1-4C alkoxy, nitro, trifluoromethyl, amino or 1-4C alkylamino), benzyl (optionally substituted with a halo or 1-4C alkyl, 1-4C alkoxy, methylenedioxy or amino), or -(CH 2) m-X1-(CH(-Y1)) n-Z-; m, n : 0-3; X1 : O or NH; Y1 : H or 1-4C alkyl; Z : CH 3(when n is 0), or 1-4C alkyl, OR, or NRa2Ra3 (when n is >= 1); Ra2, Ra3 : H or 1-4C alkyl; R5 together with the N of the NR3R4 group : at least 4-membered heterocycle, where at least one of R1-R4 is H; Z1 : O or NR2; either R2a : H or 1-4C-alkyl, benzyl or acetyl; and R1a : a saturated, linear or branched 1-10C-alkyl group, substituted or interrupted with a cationic radical, optionally interrupted with one or more oxygen atoms and/or with one or more groups NR2a, optionally substituted with one or more radicals comprising hydroxyl, alkoxy, 1-4C-hydroxyalkyl groups, or optionally saturated or aromatic cationic 5-8 membered heterocycle optionally substituted with one or more groups comprising 1-4C-alkyl, hydroxyl, 1-4C-alkoxy, amino, 1-4C-alkylamino, di(1-4C)alkylamino, thio, (1-4C)alkylthio, carboxyl, (1-4C)alkylcarbonyl, sulfonyl, amido or 1-4C-hydroxyalkyl; or R1aNR2a (when Z1 represents NR2a) : a cationic, optionally saturated 5-8-membered heterocycle (optionally substituted with one or more group of 1-10C alkyl groups, hydroxyl, 1-4C alkoxy, amino, (1-4C)alkylamino, di(1-4C)alkylamino, thio, (1-4C)alkylthio, carboxyl, (1-4C)alkylcarbonyl, sulfonyl, amido or 1-4C hydroxyalkyl, where the heterocycle is optionally containing one or more heteroatoms of N or O, preferably N), or a non-cationic, optionally saturated 5-8-membered heterocycle, substituted with a cationic group and optionally substituted with one or more 1-10C alkyl groups, hydroxyl, 1-4C alkoxy, amino, (1-4C)alkylamino, di(1-4C)alkylamino, thio, (1-4C)alkylthio, carboxyl, (1-4C)alkylcarbonyl, sulfonyl, amido or 1-4C hydroxyalkyl groups; R3a : H, halo (preferably F, Cl or Br), 1-4C-alkyl, -COOH or 1-4C-alkoxycarbonyl; An -> : anion or its mixture, where Z1R1a group carries cationic charge, preferably the cationic radical is trimethylammonium, triethylammonium, dimethylethyl ammonium, diethylmethylammonium, diisopropylmethylammonium, diethylpropylammonium, hydroxyethyldiethylammonium, di-beta-hydroxyethylmethylammonium, tri-beta-hydroxyethylammonium, piperidinium, N-methylpiperidinium, pyrrolidinium, N-methylpyrrolidinium, morpholinium, N-methylmorpholinium, imidazolium, hydroxyethylimidazolium, methylimidazolium, piperazinium or N-methylpiperazinium groups. Independent claims are included for: (1) process for dyeing keratin fibers comprising applying the composition on the keratin fibers in the presence of at least one oxidizing agent for a time sufficient to develop the desired coloration; and (2) multi-compartment device in which a first compartment contains a dye composition (A) and a second compartment contains an oxidizing agent. [Image].