Patent ID: 6811573
Filing Date: 2004-11-02
Classification: C07D

Abstract:
Agent for oxidative dyeing of keratin fibers containing a combination of at least one coupler and at least one developer, wherein said at least one coupler comprises at least one 1,3-diamino-4-heteroarylbenzene derivative of formula (I) or a physiologically tolerated salt thereof, whereinX1 denotes sulfur, oxygen, Câ€”R3 or Nâ€”R2; X2 denotes nitrogen or Câ€”R4; X3 denotes sulfur, nitrogen, oxygen, Câ€”R5 or Nâ€”R2; R1, R3, R4 and R5 can be equal or different and independently of each other denote hydrogen, a halogen atom, a cyano group, a C1-C4-alkoxy group, a C1-C6-alkyl group, a C1-C4-alkylthioether group, a mercapto group, a nitro group, an amino group, a C1-C4-monoalkylamino group, a di(C1-C4)-alkylamino group, a di(C1-C4-hydroxyalkyl)amino group, a C1-C4-hydroxyalkylamino group, trifluoromethane group, a â€”C(O)CH3 group, a â€”C(O)CF3 group, an â€”Si(CH3)3 group, a C1-C4-hydroxyalkyl group or a C3-C4-dihydroxyalkyl group; R2 denotes hydrogen, a C1-C6-alkyl group, a C2-C4-hydroxyalkyl group, a phenyl group or an acetyl group; wherein at least one and at the most two X1 to X3 groups denote Câ€”R3, or Câ€”R4 or Câ€”R5, and at the most one of the X1 to X3 groups denotes sulfur, oxygen or Nâ€”R2.