New dimethyl derivatives of 3-nitro-4-aminoaniline, process for

Details New dimethyl derivatives of 3-nitro-4-aminoaniline, process for New dimethyl derivatives of 3-nitro-4-aminoaniline, process for

1984-09-06

1988-04-05

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

564368, 564369, 8407, 8415, C07C 8758, C07C 8728, A61K 713

Patent

active

047360674

ABSTRACT:
New dimethyl derivatives of 3-nitro-4-aminoaniline, process for their preparation, and their use for dyeing keratinic fibres.
The invention relates to dimethyl derivatives of 3-nitro-4-aminoaniline of formula: ##STR1## in which CH.sub.3 is in position 2 or 5 of the benzene ring and R.sub.1 and R.sub.2 denote independently of each other a hydrogen atom, a lower alkyl group, a lower mono- or polyhydroxyalkyl or a lower aminoalkyl group in which the amino group is optionally mono- or disubstituted by a lower alkyl radical or by a lower mono- or polyhydroxyalkyl radical, it being understood that the two symbols R.sub.1 and R.sub.2 can be simultaneously other than hydrogen only when the mobile CH.sub.3 radical is in position 5, or cosmetically acceptable salts of these compounds, as well as the process for preparing them and their use in dye compositions, in particular for hair, equally for direct coloring and for coloring by an oxidation route.

REFERENCES:
patent: 3446567 (1969-06-01), Augustin et al.
patent: 3973900 (1976-08-01), Husemeyer et al.
patent: 4470826 (1984-09-01), Bugaut et al.
Friele, L. F. C., The Journal of the Society of Dyers and Colourist, vol. 79, pp. 623-631.
Code de Solidite des Teintures et Impressions Sur Textiles, 1973, cover page and p. 29.
Nickerson, D. and Keith F. Stultz, Journal of the Optical Society of America, vol. 34, No. 9, 1964, pp. 550-570.
Webster's Dictionary, 1961, pp. 448-450.
Official Digest, 1964, pp. 373, 377.

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