Patent FR-2788691-A1 (FR)
Title: Compositions for oxidation-dyeing of keratin fibres, especially hair, contain at least one oxidation base and coupler in form of 2-acylaminophenol, comprising at least one cationic group
Inventor: VIDAL LAURENT
IPC: C07D213/20
Filed: 1999-01-21
Abstract: Compositions for oxidation-dyeing contain novel 2-acylamino- phenol couplers.  The composition contains, in appropriate medium, at least one oxidation base and at least one coupler selected from compounds of formula (I);- R1 = H, group Z, 1-15C linear or branched radical (the branches may form one or more 3-7C cycles) which may contain one or more double bonds and/or one or more triple bonds (optionally aromatic groups), and may have one or more C atoms replaced by N, O or S atoms, or SO2 group (which is not directly linked to N atom in position 7 bearing R1 radical) and, independently from each other, substituted with one or more halogen atoms; R2 = H, group Z, 1-20C linear or branched radical (the branches may form one or more 3-7C cycles) which may contain one or more double bonds and/or one or more triple bonds (optionally aromatic groups), and may have one or more C atoms replaced by N, O or S atoms, or SO2 group, and, independently from each other, substituted with one or more halogen atoms; R3-R5 = H, group Z, 1-20C linear or branched radical (the branches may form one or more 3-7C cycles) which may contain one or more double bonds and/or one or more triple bonds (double bonds optionally leading to aromatic groups), and may have one or more C atoms replaced by N, O or S atoms, or SO2 group, and, independently from each other, substituted with one or more halogen atoms;  Y = H or halogen atom, or -OR6, -SR6, or -NH-SO2R6; R6 = linear or branched (1-6C) alkyl radical whose branches may form one or more 3-6C cycles, optionally substituted with one or more of halogen, hydroxy, (1-4C) alkoxy, amino and amino(1-4C) alkyl radicals; or phenyl radical, optionally substituted with one or two radicals chosen from (1-4C) alkyl, trifluoromethyl, carboxy, (1-4C)alkoxy carbonyl, halogen, hydroxy, (1-4C) alkoxy, amino and aminoalkyl radicals; or benzyl radical;  Z = cationic group of formula (II); B = 1-15C linear or branched radical (the branches may form one or more 3-7C cycles) which may contain one or more double bonds and/or one or more triple bonds (double bonds optionally leading to aromatic groups), and may have one or more C atoms replaced by N, O or S atoms, or SO2 group, and, independently from each other, substituted with one or more halogen atoms, or one or more of groups Z; D = cationic groups of formula (III) and (IV); p, n  = 0-1; Z1-Z4 = O, S, or N atom (or C atom) optionally substituted with one or two radicals (same or different) R11; Z5  = N or C optionally substituted with one or two radicals (same or different) R11; Z6  = same as R11, however it is not H atom; R11 = H, Z, or 1-10C linear or branched radical which may contain one or more double bonds and/or one or more triple bonds, and may have one or more C atoms replaced by N, O or S atoms, or SO2 group, and, independently from each other, substituted with one or more halogen atoms, and bearing no peroxide, nor diazo, nitro or nitroso radicals; R7-R10  = may be the same as indicated for R11; or R7-R9 may form with quaternary N atom to which they are attached one or more saturated 5-7 link cycles, with each link independently representing C atom optionally substituted with one or more R11, or N atom optionally substituted with R11, or O, or S atom; X  = organic or mineral anion. The full definitions are given in DEFINITIONS (Full Definitions) field. Independent claims are also included for: (1) process of oxidation-dyeing of keratin fibers (especially of human hair), comprising application of composition as claimed, for a period necessary to develop desired color, which is produced (at acidic, neutral or alkaline pH) with the aid of oxidant-agent added at the application stage or present in oxidant composition B applied simultaneously or in sequence, separately from composition A; (2) dyeing kit with separate compartments of which the first contains dye composition A as claimed and the second oxidant composition B; (3) compounds of formula (I') (and their acid-addition salts; and  (4) use of compounds (I') as couplers for oxidation-dyeing of keratin fibers; R1'-R5'  = same as defined above for R1-R5; at least one of R1'-R5' is Z'; Z'  = same as defined above for Z;  Y  = same as above with exclusion of compounds (V)-(X);