52943-88-1Relevant articles and documents
Dyeing composition for keratin fibres
-
, (2008/06/13)
The present invention relates to a composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers, such as the hair, having at least one oxidation base chosen from diaminopyrazoles and triaminopyrazoles, in combination with at least one meta-aminophenol which is halogenated ortho to the phenol, as coupler, and to the dyeing process using this composition with an oxidizing agent.
Composition for oxidation dyeing of keratinous fibres comprising at least a 4,5 or 3,4-diamino pyrazole or a triamino pyrazole and at least a particular cellulose compound, and dyeing method
-
, (2008/06/13)
The present invention relates to a composition for the oxidation dyeing of keratin fibres, in particular of human keratin fibres such as the hair, comprising at least one oxidation base chosen from 4,5- or 3,4-diaminopyrazoles and triaminopyrazoles, in combination with at least one particular cellulose-based compound, and also to the dyeing process using this composition with an oxidizing agent.
A simple method for the preparation and selective functionalization of 4,5-diaminopyrazoles
Blass, Benjamin E.,Srivastava, Anil,Coburn, Keith R.,Faulkner, Amy L.,Seibel, William L.
, p. 3009 - 3011 (2007/10/03)
A simple procedure for the synthesis and further functionalization of 4,5-diaminopyrazoles using mild conditions is reported herein. The desired products were obtained in good yield, and the structures have been confirmed by X-ray crystallography.