Substituted metaaminophenols, a process for their preparation, h

Details Substituted metaaminophenols, a process for their preparation, h Substituted metaaminophenols, a process for their preparation, h

1989-07-26

1990-09-04

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

8408, 8409, 8429, 8410, 8412, 564443, A61K 713, C07C 9140, C07C 9142

Patent

active

049541315

ABSTRACT:
A new substituted metaaminophenol of formula (I): ##STR1## wherein Z represents a monohydroxylated or polyhydroxylated hydrocarbon radical of 1 to 6 carbon atoms or an aminoalkyl radical of the formula: ##STR2## wherein n is an integer from 1 to 6 and R.sub.1 and R.sub.2, which are identical or different, represent a hydrogen atom or an alkyl or hydroxyalkyl radical of 1 to 6 carbon atoms or an acyl radical of 1 to 4 carbon atoms, and R represents a hydrogen atom, an alkyl radical or monohydroxyalkyl or polyhydroxyalkyl, monocarbamylalkyl, dicarbamylalkyl, aminoalkyl, acyl, carbalkoxy, carbamyl or monoalkylcarbamyl radical, the abovementioned alkyl radicals containing 1 to 6 carbon atoms, or an acid salt thereof with the proviso that if R represents a hydrogen atom, Z cannot represent --CH.sub.2 CH.sub.2 OH is disclosed, together with a process for their preparation, hair-dyeing compositions containing them and a hair-dyeing process.

REFERENCES:
patent: 3834866 (1974-09-01), Pum
patent: 4169704 (1979-10-01), Fakhouri
patent: 4233241 (1980-11-01), Kalopissis et al.
patent: 4420637 (1983-12-01), Bigaut et al.

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