2-sulphured metaphenylenediamines for dyeing hair

Details 2-sulphured metaphenylenediamines for dyeing hair 2-sulphured metaphenylenediamines for dyeing hair

1995-09-29

1998-01-20

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

558418, 560 18, 562432, 564154, 564162, C07C25534, C07C32106, C07C32329, C07C38106

Patent

active

057103119

ABSTRACT:
At least one 2-sulphured metaphenylenediamine of formula (I) ##STR1## used for dyeing keratin fibres, wherein Z is alkyl, aralkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl or aminoalkyl; R.sub.1 and R.sub.2, which are the same or different, are hydrogen, alkyl, monohydroxyalkyl, polyhydroxyalkyl, monocarbamylalkyl, dialkylcarbamyl, aminoalkyl, acyl carbalkoxy, carbamyl, or monoalkylcarbamyl; R.sub.3 is hydrogen, alkyl, nitrile, amide, fluoroalkyl, or --COOR; and the corresponding acid salts. A method for dyeing keratin fibres, and novel 2-sulphured metaphenylenediamines, are also disclosed.

REFERENCES:
patent: 1940757 (1933-06-01), Lehmann et al.
patent: 4085217 (1978-04-01), Kalopissi
patent: 4146688 (1979-03-01), Schwindt et al.
patent: 4260634 (1981-04-01), Wehrmeister
patent: 4973760 (1990-11-01), Davis
Patent Abstracts of Japan, vol. 004, No. 073 (C.012) May 1980 (Abstract of 55-38334--Mar. 1980).
English Language Translation of DE 3,343,642, Henkel KGaA, Jun. 1985.

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