Agent useful e.g. for oxidative color change of keratin fibers, preferably human hair, comprises at least one trimeric p-phenylenediamine derivative or its salt as an oxidation dye precursor of a developer type in a cosmetic carrier

摘要

Agent comprises at least one trimeric p-phenylenediamine derivative (I) or its salt as an oxidation dye precursor of a developer type in a cosmetic carrier. Agent comprises at least one trimeric p-phenylenediamine derivative of formula (I) or its salt as an oxidation dye precursor of a developer type in a cosmetic carrier. R1, R2 : H, 1-6C alkyl, 2-6C alkenyl, 1-6C hydroxyalkyl, 2-6C polyhydroxy, 1-6C alkoxy or halo; R3 : H, 1-6 alkyl, 2-6C alkenyl, 2-6C hydroxyalkyl, 2-6C polyhydroxyalkyl, 1-6C alkoxy-2-6C-alkyl, cyano-1-6C-alkyl or aryl-1-6C-alkyl; n : 2-6; Y1 : cationic nitro group of formula (II)-(VI); R4 : 1-6C alkyl, 2-6C alkenyl, 2-6C hydroxyalkyl, 2-6C polyhydroxyalkyl, 1-6C alkoxy-2-6C-alkyl, cyano-1-6C-alkyl or aryl-1-6C-alkyl; m : 2-6; and X -anion, preferably halide, hydrogensulfate, half sulfate, benzene sulfonate, p-toluene sulfonate, acetate, citrate, lactate, half tartrate or trifluoromethanesulfonate. An independent claim is also included for the trimeric p-phenylenediamine derivative (I) or its salt. [Image] [Image] [Image].