Coupler components for oxidative hair dyes, their preparation and their use, and hair dyeing compositions containing them
Abstract
Abstract 1. Claims for the Contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL, SE Chlormethyl-m-aminophenols corresponding to the following general formula see diagramm : EP0039030,P6,F2 in which X and Y represent a chlorine atom, with the proviso that, when X is a chlorine atom, Y is a methyl radical and, when X is a methyl radical, Y is a chlorine atom. 1. Claims for the Contracting State : AT A process for the production of chloromethyl-m-aminophenols corresponding to the following general formula see diagramm : EP0039030,P7,F1 in which X and Y represent a chlorine atom or a methyl radical, with the proviso that, when X is a chlorine atom, Y is a methyl radical and, when X is a methyl radical, Y is a chlorine atom, characterized in that corresponding chloromethyl-m-nitrophenols are catalytically hydrogenated in known manner in the presence of Raney nickel.
Inventors
- 👤 David Dr. Rose
- 👤 Norbert Dr. Maak
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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