Reaction of dehydrodithizone with benzyne and diphenylcyclopropenethione. Isolation of N-(1,2-diphenyldiazonia)-1,3-benzothiazole-2-aminate and the formation of 2-phenylazo-4,6,7-triphenyl-4H-1,3,4-thiadiazepine-5-thione
Abstract
Dehydrodithizone adds benzyne to yield the title compound (7); diphenylcyclopropenethione, on the other hand, gave the thiadiazepine (9). Several other cycloadducts of dehydrodithizone are also described.