Substituted N-aryl pyrroles in oxidative hair dye compositions

Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing

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8649, 548416, 548452, 548469, A61K 713, C07D20904

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active

050191306

ABSTRACT:
The coloring of human hair and other keratinaceous substrates can be carried out efficiently using compositions containing certain N-aryl pyrroles as dye couplers or developers.

REFERENCES:
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patent: 4808190 (1989-02-01), Grollier et al.
J. S. Keily and S. Huang, "The Synthesis of Methyl 1-Aryl-2-Pyrrolecarboxylates", J. Heterocyclic Chem., 24 (1987) pp. 1137-1139.
A. R. Katritzky, Handbook of Heterocyclic Chemistry, Chap. 3.3, Pergamon Press, New York (1985), pp. 243-291.
N. Clauson-Kaas and Limborg, "The Alkoxylation of Furans with a Negative Substituent . . . ", Acta Chem. Scandinavica, 6 (1952), pp. 551-555.
S. Ram et al., "A General Procedure for Mild and Rapid Reduction of Aliphatic and Aromatic . . . ", Tetrahedron Letters, 25, No. 32 (1984) pp. 3415-3418.
Elderfield, et al., "The Chemistry of Pyrrole and Its Derivatives", Heterocyclic Compounds, vol. 1, Chapter 6 (1967), pp. 277-342.
Chemical Abstracts, 47: 7482f.

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