Nitro-p-phenylenediamine derivatives, processes for their prepar

Details Nitro-p-phenylenediamine derivatives, processes for their prepar Nitro-p-phenylenediamine derivatives, processes for their prepar

1990-04-25

1991-11-26

Willis, Jr., Prince

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8416, 8407, 8408, 8429, 564441, 564442, A61K 713, C07C21151

Patent

active

050679678

ABSTRACT:
The invention relates to compounds of the general formula I ##STR1## wherein R.sup.1 and R.sup.2 independently of one another each represent a hydrogen atom, a (C.sub.1 -C.sub.2) alkyl group, a hydroxy (C.sub.2 -C.sub.3) alkyl group or a 2,3-dihydroxypropyl group and X is a florine atom or a trifluoromethyl group, processes for their preparation and aqueous hair coloring agents containing these compounds.

REFERENCES:
patent: 3716585 (1973-02-01), Strong
patent: 3794676 (1974-02-01), Halasz
patent: 3973900 (1976-08-01), Husemeyer
patent: 4018556 (1977-04-01), Kalopissis
patent: 4637821 (1987-01-01), Monnais
patent: 4666453 (1987-05-01), Junino
patent: 4668236 (1987-05-01), Grollier
patent: 4704474 (1987-11-01), Konrad
patent: 4725283 (1988-02-01), Cotteret
patent: 4923479 (1990-05-01), Braun
Kemp, Organic Chemistry, 1980, pp. 39-44.

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