Primary intermediates for oxidative coloration of hair

Details Primary intermediates for oxidative coloration of hair Primary intermediates for oxidative coloration of hair

2005-01-04

2005-01-04

Hardee, John R. (Department: 1751)

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C544S358000, C546S229000, C548S335500, C564S305000

Reexamination Certificate

active

06838561

ABSTRACT:
Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1):where R1, and R2are each individually selected from a hydrogen atom, a C1to C3alkyl group, a C1to C5mono or dihydroxyalkyl group; phenyl or benzyl optionally substituted with an alkoxy group, or R1and R2together with the nitrogen atom to which they are attached form a piperazine, piperidine, imidazole, or morpholine ring.

REFERENCES:
patent: 4960432 (1990-10-01), Junino et al.
patent: 5073174 (1991-12-01), Vayssie et al.
patent: 5183941 (1993-02-01), Pan et al.
patent: 5704948 (1998-01-01), Terranova et al.
patent: 2101999 (1972-08-01), None
The Science of Hair Care, C. Zviak, ed., Marcel Dekker, Inc., pp. 263-285, May, 1987.

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