Sulfur Nitride in Organic Chemistry. Part 19. Selective Formation of Benzo- and Benzobis[1,2,5]thiadiazole Skeleton in the Reaction of Tetrasulfur Tetranitride with Naphthalenols and Related Compounds
Tetrasulfur tetranitride (N4S4) reacted with 2-naphthols to afford naphtho [1,2-c][1,2,5] thiadiazoles (13) in high yields, while 1-naphthaols gave naphtho[1,2-c:3,4-c′]bis[1,2,5]thiadiazoles as a ...