Patent ID: 6248137
Filing Date: 2001-06-19
Classification: A61K,A61Q,C07D

Abstract:
A composition for the oxidation dyeing of keratinous fibers wherein said composition comprises, in a medium suitable for dyeing keratinous fibers, at least one coupler chosen from meta-phenylenediamines, meta-aminophenols, meta-diphenols and heterocyclic couplers, and at least one 3-aminopyrazolo(1,5-a)pyrimidine chosen from compounds of formula (I) and acid and base addition salts thereof: ##STR9##in whichR.sub.1, R.sub.2, R.sub.3 and R.sub.4 are identical or different and are chosen from a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.4 alkyl radical, a C.sub.1 -C.sub.4 trifluoroalkyl radical, a C.sub.1 -C.sub.4 alkoxy radical, an aryl radical, a C.sub.1 -C.sub.4 monohydroxyalkyl radical, a C.sub.2 -C.sub.4 polyhydroxyalkyl radical, a C.sub.1 -C.sub.4 (C.sub.1 -C.sub.4 alkoxy)alkyl radical, a C.sub.1 -C.sub.4 aminoalkyl radical, a C.sub.1 -C.sub.4 (C.sub.1 -C.sub.4 alkyl)aminoalkyl radical, a C.sub.1 -C.sub.4 di(C.sub.1 -C.sub.4 alkyl)aminoalkyl radical, a C.sub.1 -C.sub.4 monohydroxy (C.sub.1 -C.sub.4 alkyl)aminoalkyl radical and a C.sub.1 -C.sub.4 di(hydroxy(C.sub.1 -C.sub.4 alkyl))aminoalkyl radical,wherein said at least one coupler and said at least one 3-aminopyrazolo(1,5-a)pyrimidine are present in said composition in a combined amount effective to dye keratinous fibers.