Methylenedioxy-benzene in oxydative dye

Details Methylenedioxy-benzene in oxydative dye Methylenedioxy-benzene in oxydative dye

C - Chemistry, Metallurgy

07

D

167/302

C07D 317/20 (2006.01)

Patent

CA 1100878

ABSTRACT OF THE DISCLOSURE The present invention provides oxidation dye prepara- tions for tinting hair which contains oxidation dye intermediates together with at least one derivative of 1,2-(methylenedioxy)- benzene as a colour coupler, said colour coupler being represented by the general formula Image in which the substituent R- represents a hydroxy group, an amino group, a monosubstituted amino group of the formula NHRl or a disubstituted amino group of the formula -NRlR2 in which the substituents R1 and R2, independently from each other, represent an alkyl substituent, a hydroxyalkyl substituent, or an acyl substituent with between one and four carbon atoms respectively.

333693

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