Benzo[1,5]thiazepine: Synthesis, Reactions, Spectroscopy, and Applications

Scheme 49

Reactions of 6-arylidene-2,3-dimethyl/3-methyl-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-5-ones with o-aminothiophenol in dry (EtOH/HCl gas).