| 摘要 |
The invention relates to a process for dyeing keratin fibres, comprising the use of one or more metal catalysts and of a composition (A) comprising: —one or more oxidizing agents, and —at least one monoaminobenzene of formula (I), or an addition salt or solvate thereof in which the radicals R1 to R5 represent, independently of each other: a hydrogen atom; a halogen atom, a C1-C6 alkyl radical, a C1-C6 alkoxy radical, a carboxylic radical (—COOH), a sulfonic radical (—SO3 H); two of the adjacent radicals R1 to R5 possibly forming, with the carbon atoms that bear them, a saturated or unsaturated 5- to 7-membered ring, optionally comprising from 1 to 2 heteroatoms, preferably oxygen, the said ring being optionally fused with a saturated or unsaturated 5- to 6-membered ring; on condition that at least one of the radicals R1 to R5 represents an optionally substituted alkoxy radical and preferably at least one of the other radicals R1 to R5 is a hydrogen atom.; |
| 主权项 |
1. Process for dyeing keratin fibres, comprising the use of one or more metal catalysts and of a composition (A) comprising:
one or more oxidizing agents, and at least one monoaminobenzene of formula (I), or an addition salt or solvate thereofin which the radicals R1 to R5 represent, independently of each other:
a hydrogen atom; a halogen atom, preferably chosen from F, Cl and Br; a linear or branched C1-C6 and preferably C1-C4 alkyl radical, which is optionally substituted, preferably with one or more OH, NH2, CN, COOH or amino(C1-C4)alkoxyphenyl groups, preferably OH; a linear or branched C1-C6 and preferably C1-C4 alkoxy radical, which is optionally substituted, preferably with one or more OH, NH2, di(C1-C4)alkylamino, CN, CF3, aminophenoxy, C1-C4 hydroxyalkoxy, C1-C4 alkoxy or pyrrolidine groups; a carboxylic (—COOH) or sulfonic (—SO3H) radical; two of the adjacent radicals R1 to R5 possibly forming, with the carbon atoms that bear them, a saturated or unsaturated, 5- to 7-membered ring, optionally comprising from 1 to 2 heteroatoms, preferably oxygen, the said ring being optionally fused with a saturated or unsaturated 5- to 6-membered ring; and with the proviso that at least one of the radicals R1 to R5 represents an optionally substituted alkoxy radical and preferably at least one of the other radicals R1 to R5 represents a hydrogen atom. |
