Composition for the oxidative dyeing of hair containing 4,5-diaminopyrazole derivatives as well as new 4,5-diaminopyrazole derivatives and process for their synthesis
AssigneeWella Aktiengesellschaft
InventorsHans Neunhoeffer, Stefan Gerstung, Thomas Clausen, Wolfgang R. Balzer
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Abstract
The composition for oxidative dyeing of hair based on a combination of developer substances and coupler substances, contains as a developer substance 4,5-diamino-1-(4'-methoxybenzyl)pyrazole, 4,5-diamino-1-(4'-methylbenzyl)pyrazole, 4,5-diamino-1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1-(3'-methoxybenzyl)pyrazole, 4-amino-1-(4'-methoxy-benzyl) -5-methylaminopyrazole or 4-amino-5-(2'-hydroxyethyl)amino-1-(4'-methoxybenzyl)pyrazole.
Claims11
Composition for oxidative dyeing of hair based on a combination of developer substances and coupler substances, containing as a developer substance a 4,5-diaminopyrazole selected from the group consisting of 4,5-diamino-1-(4'-methoxybenzyl)pyrazole, 4,5-diamino-1-(4'-methylbenzyl)pyrazole, 4,5-diamino -1-(4'-chlorobenzyl)pyrazole, 4,5-diamino-1-(3'-methoxybenzyl)pyrazole, 4-amino-1-(4'-methoxybenzyl)-5-methylaminopyrazole and 4-amino-5-(2'-hydroxyethyl)amino-1-(4'-methoxybenzyl)pyrazole.
4,5-Diamino-1-(4'-methoxybenzyl)pyrazole.
4,5-Diamino-1-(4'-methylbenzyl)pyrazole.
4,5-Diamino- 1 -(4'-methoxybenzyl)pyrazole.
4,5-Diamino- 1-(3'-methylbenzyl)pyrazole.
4-Amino-1-(4'-methyoxybenzyl)-5-methylaminopyrazole.
4-Amino-5-(2'-hydroxyethyl)amino- 1-(4'-methoxybenzyl)pyrazole.
Dependencies are inferred from the claim text.