2-nitroaniline derivatives and hair dyeing compositions containi

Details 2-nitroaniline derivatives and hair dyeing compositions containi 2-nitroaniline derivatives and hair dyeing compositions containi

1988-12-12

1991-08-06

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8405, 8407, 8408, 8423, A61K 713

Patent

active

050374460

ABSTRACT:
The composition for dyeing hair yellow contains 2-nitroaniline derivatives of the general formula I: ##STR1## in which, R.sup.1 and R.sup.2 represent, independent of one another, hydrogen an alkyl of 1 to 4 carbon atoms, a monohydroxyallkyl of 2 to 4 carbon atoms or a dihydroxyalkyl of 3 or 4 carbon atoms, provided that R.sup.1 and R.sup.2 do not simultaneously represent alkyl groups of 1 to 4 carbon atoms, and X denotes an alkyl, monohydroxyalkyl, perfluoroalkyl or halogen. Also disclosed are new 2-nitroanitrile derivatives of the general formula II: ##STR2## in which R.sup.a and R.sup.b denote, independent of one another, ethyl, a monohydroxylalkyl of 2 to 4 carbon atoms or a dihydroxyalkyl of 3 or 4 carbon atoms, when Z is methyl, Cl or Br; or when Z is CH.sub.2 OH or a perfluoroalkyl, R.sup.a denotes hydrogen, a monohydroxyalkyl of 2 to 4 carbon atoms or a dihydroxyalkyl of 3 or 4 carbon atoms, and R.sup.b represents 2-hydroxyethyl or 2,3-dihydroxypropyl.

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Zviak, The Science of Hair Care, Marcel Dekken, Inc. 1986, pp. 247 and 266-267, ISBN 0-8247-7378-0.

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