85765-49-7Relevant academic research and scientific papers
Dyeing compositions for kerating fibres based on nitroanilines and nitroanilines for use therein
-
, (2008/06/13)
There are described dyeing compositions for keratin fibres, and in particular for human hair, containing a dyestuff of the formula: STR1 in which A denotes an alkylene group, an alkylene group substituted by one or more OH groups, or an alkylene group int
Process for the preparation of nitroanilines
-
, (2008/06/13)
The invention relates to a process for the preparation of nitroanilines, which consists in reacting an amine RNH2, or ammonia, with 3,4-methylenedioxynitriobenzene to give the products of the formula: STR1 in which R denotes hydrogen, alkyl, monohydroxyalkyl or polyhydroxyalkyl, alkoxyalkyl or aminoalkyl of the formula: STR2 in which R1 and R2, which are identical or different, denote hydrogen, alkyl or monohydroxyalkyl or polyhydroxyalkyl and n denotes an integer from 2 to 4, or of the formula: STR3 in which A denotes OCH2 or STR4 and R1 denotes --CH2 CH2 OH or STR5 or their salts. The invention also relates to the dyeing compositions for keratin fibres, and in particular for hair, which contain a dyestuff of the above formula (I) in which R denotes alkyl, polyhydroxyalkyl, alkoxyalkyl or aminoalkyl of the abovementioned formula, and to the dyestuffs of the formula (I) in which R denotes alkoxyalkyl or aminoalkyl of the above formula, and of the formula (IIB), which are novel.
