With a view to examining the medicinal and industrial importance of" benzothiazole derivatives", sulfabenzothiazole, sulfa-6-methyl-,-6-chloro-,-6-methoxy-,-6-nitro- benzothiazoles and sulfa-/3-naphthothiazole, have been synthesized. As an extension of the previous work on 2-aminobenzothiazole derivatives13, acetylamino-, benzoylamino-, 2-(2- hydroxy-l-naphthylazo)-and 2, 2'-azobisbenzothiazole derivatives from the substituted 2- ...