Diaminopyrazole-containing compositions for colouring keratin fibres, colouring process, novel diaminopyrazoles and method for their prepn.

Diaminopyrazole-containing compositions for colouring keratin fibres, colouring process, novel diaminopyrazoles and method for their prepn.

  • CN 1,189,772 A
  • Filed: 05/03/1996
  • Published: 08/05/1998
  • Est. Priority Date: 05/05/1995
  • Status: Abandoned Application
First Claim
Patent Images

1. compositions that is used for keratin fibre oxidation dyeing, the keratin fiber that specifically is used for the people, such as hair, it is characterized in that, it comprises the substituted 4 in the 3-position of at least a following defined general formula (I) in being suitable for painted medium, the 5-diamino-pyrazole is as oxidation base and/or its addition salts at least a and acid:

  • In formula, R 1, R 2, R 3, R 4And R 5Identical or different, the C of expression hydrogen atom, straight or branched 1-C 6Alkyl, C 2-C 4Hydroxy alkyl, C 2-C 4Aminoalkyl, phenyl;

    By halogen atom or C 1-C 4Alkyl, C 1-C 4Alkoxyl, nitro, trifluoromethyl, amino or C 1-C 4The phenyl that alkyl amino replaces;

    Benzyl;

    By halogen atom or C 1-C 4Alkyl, C 1-C 4Alkoxyl, methylene dioxy base or amino benzyl that replaces or following group;

    In this formula, m and n are the identical or different integers that comprises 1 and 3 1-3, and X represents oxygen atom or group NH, and Y represents hydrogen atom or methyl, and Z represents methyl or group OR or NRR '"'"', and wherein R and R '"'"' are identical or different, expression hydrogen atom, methyl or ethyl,Be appreciated that and work as R 2During the expression hydrogen atom, R 3Can also represent amino or C 1-C 4Alkyl amino, -R 6The C of expression straight or branched 1-C 6Alkyl, C 1-C 4Hydroxy alkyl, C 1-C 4Aminoalkyl, C 1-C 4Alkyl-C 1-C 4Aminoalkyl, two C 1-C 4Alkyl-C 1-C 4Aminoalkyl, C 1-C 4Hydroxy alkyl-C 1-C 4Aminoalkyl, C 1-C 4Alkoxy methyl, phenyl;

    By halogen atom or C 1-C 4Alkyl, C 1-C 4Alkoxyl, nitro, trifluoromethyl, amino or C 1-C 4The phenyl that alkyl amino replaces;

    Benzyl;

    By halogen atom or C 1-C 4Alkyl, C 1-C 4Alkoxyl, nitro, trifluoromethyl, amino or C 1-C 4The benzyl that alkyl amino replaces, be selected from the heterocycle of thiophene, furan and pyridine or group-(CH 2) p-O-(CH 2) q-OR ", p and q are the identical or different integers that comprises 1 and 3 1-3 in the formula, R " expression hydrogen atom or methyl, And be defined in the above-mentioned formula (I);

    -R 2, R 3, R 4And R 5In have at least one the expression hydrogen atom, -work as R 2And R 4Expression replaces or unsubstituted phenyl respectively, when benzyl or following group R 3And R 5All can not be any in these three kinds of groups, -work as R 4And R 5When representing hydrogen atom simultaneously, R 1Can with R 2, R 3Form the hexahydropyrimidine heterocycle together or arbitrarily by C 1-C 4Alkyl or 1,2, the imidazolidine heterocycle that the 4-triazole replaces, -work as R 2, R 3, R 4And R 5Expression hydrogen atom or C 1-C 6During alkyl, R 1And R 6Also can represent arbitrarily by the heterocycle residue of 2,3 or 4-pyridine radicals, 2-or 3-thienyl, 2-or the 3-furyl of methyl or cyclohexyl replacement.

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