NOVEL DINITRO-2,4, HYDROXYALKYL-6 ANILINES, PROCESS FOR THEIR PREPARATION AND THEIR USE IN DYEING KERATIN FIBERS, AND IN PARTICULAR HUMAN HAIR

摘要

P THE INVENTION CONCERNED WITH NEW DINITRO-2,4, HYDROXYALKYL-6 ANILINES OF THE FOLLOWING FORMULA: BR/ (CF DRAWING IN BOPI) BR/ IN WHICH: X DESIGNATES A BRANCHED OR NOT BRANCHED ALKYLENE RADICAL, COMPRISING 2 TO 6 ATOMS OF CARBON, WHICH MAY BE SUBSTITUTED WITH ONE OR MORE HYDROXYL RADICALS; R DESIGNATES A HYDROGENIC ATOM, AN ALKYL, MONO OR POLYHYDROXYALKYL OR AMINOALKYL RADICAL, THE AMINO FUNCTION OF WHICH CAN BE MONO OR DISUBSTITUTED BY AN ALKYL RADICAL OR BY A MONO- OR POLYHYDROXYALKYL RADICAL, THE NITROGEN ATOM ALSO HAVING PART IN A HETEROCYCLE, THE ALKYL RADICALS HAVING 1 TO 4 CARBON ATOMES, R A HYDROGEN ATOM OR A CK ALKYL RADICAL, AND COSMETICALLY ACCEPTABLE SALTS OF COMPOUNDS COMPRISING SALINEABLE AMINO FUNCTION AS WELL AS THE METHOD OF PREPARING THESE COMPOUNDS AND THEIR USE IN STAINING KERATIN FIBERS, PARTICULARLY HUMAN HAIR. / P