Patent ID: 7132001
Filing Date: 2006-11-07
Classification: C07D

Abstract:
1. An agent for coloring keratin fibers based on a developer-coupler combination, said agent containing, as the coupler, at least one 3-aminophenol derivative of formula (I), or a physiologically compatible salt thereof: wherein X 1 , X 2 , X 3 , and X 4 , independently of each other, denote sulfur, nitrogen, N—R1, oxygen, C—R2, C—R3, C—R4, or C—R5, provided that at least one and at the most three of the X 1 to X 4 groups denote nitrogen, N—R1, sulfur, or oxygen and, if at least two heteroatoms are present in the formula (I), at the most one of the X 1 to X 4 groups denotes sulfur, N—R1, or oxygen; R1 denotes hydrogen, a (C R2, R3, R4, and R5, independently of each other, denote hydrogen, a halogen atom, a cyano group, a (C two adjacent R2 to R5 groups together with a remaining part of the formula (I) form an annelated heterocyclic or carbocyclic, substituted or unsubstituted ring.