Compounds containing substituted phenylamino and pyridyl groups

Details Compounds containing substituted phenylamino and pyridyl groups Compounds containing substituted phenylamino and pyridyl groups

1988-12-05

1991-02-19

Ramsuer, Robert W.

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8408, 8411, 8416, 8423, 546304, 546307, 546311, 546329, 546334, A61K 713, C07D21373, C07D21338

Patent

active

049940872

ABSTRACT:
Novel compounds with structures corresponding to the formula: ##STR1## in which n=0 or 1 and R.sup.1 is hydrogen, a C.sub.1 -C.sub.4 alkyl or hydroxyalkyl group, or an amino group, and salts of such compounds, are superior to previously known couplers for oxidation hair dyes to produce a variety of colors, especially reds, when used with standard developer components. With 2,4,5,6-tetraaminopyrimidine developer for example, these novel compounds produce red to brown hair colors and, with p-tolylenediamine developer, red to blue-violet hair colors.

REFERENCES:
patent: 3647351 (1972-03-01), Lange
patent: 3933988 (1975-12-01), Welstead, Jr. et al.
Fette, Seifen, Anstrichmittel 67. Jahrg., (1965), p. 222.
Fette, Seifen, Anstrichmittel 69. Jahrg., (1967), pp. 348-352.
Zviak, The Science of Hair Care, vol. 7, pp. 263-268.

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