Oxidation hair dyes containing 3-aminophenol derivatives, and novel 3-aminophenol derivatives
申请人:——
公开号:US20040200010A1
公开(公告)日:2004-10-14
The object of the present patent application are agents for dyeing keratin fibers based on a developer-coupler combination and characterized in that they contain at least one 3-aminophenol derivative of formula (I) or a physiologically compatible, water-soluble salt thereof
1
wherein
R1 denotes a group of the formula
2
or a group of the formula
3
as well as novel 3-aminophenol derivatives.
M-aminophenol derivatives and coloring agents containing them
申请人:——
公开号:US20040237214A1
公开(公告)日:2004-12-02
The object of the present patent application are 3-aminophenol derivatives of formula (I) or the physiologically tolerated, water-soluble salts thereof
1
wherein R denotes a heterocyclic aromatic 5-membered ring of formula (Ia)
2
and colorants based on a developer-coupler combination and containing these compounds.