DYEING COMPOSITION OF KERATINIC FIBERS BASED ON 4-MONOINDOLYL 1,2-NAPHTHOQUINONES OR THEIR LEUCODERIVES, NOVEL 4-MONOINDOLYL 1,2-NAPHTHOQUINONE COMPOUNDS AND THEIR LEUCODERIVES.

摘要

A dyeing composition for keratinous fibers containing, in a medium suitable for dyeing, at least one compound corresponding to one of the following two formulas: BR/ (CF DRAWING IN BOPI) BR/ BR/ wherein: R is a group of formula: embedded image in which: R1 is hydrogen, alkyl or a covalent bond; R 2 is hydrogen, alkyl, phenyl or a covalent bond; R3 denotes alkyl or a covalent bond; BR/ one and only one of R1 to R3 is a covalent bond; R4 to R7, which may be identical or different, denote hydrogen, halogen, alkyl, alkoxycarbonyl, acyl, acyloxy, cyano, optionally monosubstituted amino, NO2, OH, alkoxy, benzyloxy; BR/ at most two may denote OH, alkoxy or benzyloxy; BR/ at most one may denote halogen, NO2, alkoxycarbonyl, acyl, cyano, optionally substituted amino, or acyloxy; BR/ R5 and R6 may denote methylenedioxy; / P