Hair dye compositions and new compounds useful therein

Details Hair dye compositions and new compounds useful therein Hair dye compositions and new compounds useful therein

1982-04-06

1983-11-29

Trousof, Natalie

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8405, 8407, 8416, 560 22, 562437, 564 47, 564 50, 564 97, 564153, 564156, 564164, 564166, 564193, 564284, 564336, 564346, 564353, 564354, 564441, A61K 713, C07C 9314, C07C 7946, C07C10329

Patent

active

044178964

ABSTRACT:
Novel compounds of the general formula ##STR1## wherein Z represents a substituted lower alkyl radical; each of R.sub.1 and R.sub.2 is hydrogen atom, a lower alkyl or a substituted lower alkyl identical with or different from Z and the functional groups NO.sub.2 and NR.sub.1 R.sub.2 can occupy all ring positions in relation to OZ, with the exception that if Z is .beta.-hydroxyethyl, --NO.sub.2 is in the 4 position and --N(R.sub.1)(R.sub.2) is in the 2 position then either R.sub.1 or R.sub.2 is other than hydrogen.
The novel compounds are for dyeing human hair in a variety of yellow shades. The compounds of formula (I) may be used as aqueous or water-alcohol solutions to form dye compositions for dyeing human hair.

REFERENCES:
patent: 1669764 (1928-05-01), Knecht
patent: 2518077 (1950-08-01), Schmid et al.
patent: 2750326 (1956-06-01), Eckardt
patent: 2750327 (1956-06-01), Eckardt
patent: 2927132 (1960-03-01), Barber et al.
patent: 3274249 (1966-09-01), Brunner et al.
Chemical Abstracts, vol. 41, Cols. 5484-5485, (1947).

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