Novel coupler for use in oxidative hair dyeing

Details Novel coupler for use in oxidative hair dyeing Novel coupler for use in oxidative hair dyeing

C - Chemistry, Metallurgy

07

C

C07C 211/64 (2006.01) A61K 8/41 (2006.01) A61Q 5/10 (2006.01) C07C 209/00 (2006.01) C07C 215/76 (2006.01) C07C 215/78 (2006.01) C07C 215/90 (2006.01)

Patent

CA 2424883

Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of formula (I): Wherein X is selected from of halogen and R5SO4R3 is selected from C1 to C2 alkyl and hydroxyethyl; and R, R1,R2 and R5 are each independently selected from C1 to C22 alkyl or C1 to C22 mono or dihydroxyalkyl.

Les coupleurs pour des compositions de coloration des cheveux pour la coloration oxydante des cheveux, sont des composés de formule (1) dans laquelle X est choisi parmi halogène et R?5¿SO¿4?, R?3¿ est choisi parmi hydroxyéthyle et alkyle C¿1? à C¿2; ?et R, R?1¿, R?2¿ et R?5¿ sont choisis chacun séparément parmi alkyle C¿1? à C¿22? ou mono ou dihydroxyalkyle C¿1? à C¿22?.

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