| abstract |
PROCEDURE FOR THE PREPARATION OF AN OXIDATIVE HAIR DYE. IT CONSISTS OF: A) REACTION 2-NITROGENILETILBROMURO WITH AN ALQUILMERCAPTANO TO OBTAIN 2-ALQUILTIOETIL-NITROBENZOL, WHICH IS OXIDED WITH PEROXIDO DE HIDROGENEN-LAGENENROGENILE-NARROGEN, ESTIMATE ALKYL SULFONILETIL-ACETANILIDA, WHICH IS NITRURED NEXT, PROCEEDING THEN TO DECREASE THE 2-ALQUILSULFONILETIL-4-NITROACETANILIDA RESULTING WITH A DISSOLUTION OF ACID-AURI-AURI I) 2-ALKYLSULFONILETIL-1,4-DIAMINOBENZOL THROUGH HYDROGENATION; AND B) COMBINE THE COMPOUND OBTAINED FROM FORMULA (I) IN STAGE A) WITH A COUPLING SUBSTANCE AS RESORCINE, 2-METHYLRESORCINE AND OTHERS. |