Primary intermediates for oxidative coloration of hair

Details Primary intermediates for oxidative coloration of hair Primary intermediates for oxidative coloration of hair

C - Chemistry, Metallurgy

07

D

C07D 295/135 (2006.01) A61K 8/41 (2006.01) A61K 8/49 (2006.01) A61Q 5/10 (2006.01) C07C 215/80 (2006.01)

Patent

CA 2433839

Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1), where R1 and R2 are each individually selected from a hydrogen atom, a C1 to C3 alkyl group, a C1 to C5 mono or dihydroxyalkyl group, phenyl or benzyl optionally substituted with an alkoxy group, or R1 and R2 together with the nitrogen atom to which they are attached form a piperazine, piperidine, imidazole, or morpholine ring.

L'invention concerne des intermédiaires primaires utilisés dans des compositions de coloration capillaire oxydative, qui sont des composés représentés par la formule (1), dans laquelle R¿1? et R¿2? peuvent être chacun individuellement un atome d'hydrogène, un groupe alkyle C¿1-3?, un groupe mono ou dihydroxyalkyle C¿1-5?, un groupe phényle ou benzyle éventuellement substitué par un groupe alcoxy, ou encore R¿1? et R¿2? ainsi que l'atome d'azote auquel ils sont liés forment ensemble un cycle pipérazine, pipéridine, imidazole, ou morpholine.

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