Procedure for the obtaining of - (5-tetrazolil) tioxantone 10.10 dioxide. (Machine-translation by Google Translate, not legally binding)

摘要

Process for the preparation of 3- (5-tetrazolyl) thioxanthone 10,10-dioxide of formula. (* see formula) characterized in that in a first step, the 3-cyano-thioxantonimine is reacted with an inorganic azide to give rise to the 3- (5-tetrazolyl) thioxantonaimine, which in a second stage is subjected to an oxidation in an acidic medium that simultaneously causes the hydrolysis of the imino acetone group and the oxidation of the sulfide to sulfone. (Machine-translation by Google Translate, not legally binding)