| abstract |
Disclosed are 4,5-diaminopyrazoles of general formula (I), wherein R represents a straight-chain or branched C1-C6 alkyl group, an unsubstituted phenyl group, or a singly or multiply substituted phenyl group, the substituents on the phenyl group being independently selected among a halogen atom, a C1-C6 carboxylic acid ester group, a straight-chain or branched C1-C6 alkoxy group, a straight-chain or branched C1-C6 alkoxy group that is interrupted by two heteroatoms, a hydroxyethoxy group, a dihydroxypropoxy group, or a nitrile group. Also disclosed are oxidation dyes for keratin fibers, which contain the inventive compounds, and a method for producing said compounds. |