초록 ▼

2,4-Dichloro-3-alkylidene-aminophenols having the formula: [Figure] wherein R1 represents hydrogen or an alkyl radical having 1 to 6 carbon atoms and R2 represents an alkyl radical having 1 to 6 carbon atoms or an aryl radical, with the proviso that R2 can only be an aryl radical when R1 is hydrogen

2,4-Dichloro-3-alkylidene-aminophenols having the formula: [Figure] wherein R1 represents hydrogen or an alkyl radical having 1 to 6 carbon atoms and R2 represents an alkyl radical having 1 to 6 carbon atoms or an aryl radical, with the proviso that R2 can only be an aryl radical when R1 is hydrogen. The 2,4-dichloro-alkylidene-aminophenols can be produced by reaction of 2,4-dichloro-3-aminophenol with the corresponding aldehydes or ketones. They are suitable as such, or in the form of their salts with inorganic or organic acids, as coupler components in oxidation hair dyes.

대표청구항 ▼

2,4-dichloro-3-alkylidene-aminophenol having the formula: [Figure] wherein R1 is hydrogen or an alkyl radical having 1 to 6 carbon atoms and R2 is an alkyl radical having 1 to 6 carbon atoms, or a salt thereof with an organic acid or inorganic acid. Hair dyeing agent based upon oxidation hair dyes c

2,4-dichloro-3-alkylidene-aminophenol having the formula: [Figure] wherein R1 is hydrogen or an alkyl radical having 1 to 6 carbon atoms and R2 is an alkyl radical having 1 to 6 carbon atoms, or a salt thereof with an organic acid or inorganic acid. Hair dyeing agent based upon oxidation hair dyes comprising at least one 2,4-dichloro-3-alkylidene-aminophenol, or salt thereof with an inorganic or organic acid, as claimed in claim 1, as the coupler component, and the developer components of oxidation hair dyes. Process of preparing an oxidation hair dye which comprises mixing at least one 2,4-dichloro-3-alkylidene-aminophenol, or salt thereof with an organic or inorganic acid, as claimed in claim 1, as the coupler component, and the developer components of oxidation hair dyes. Process of dyeing hair using the oxidation hair dye of claim 7.