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

Scheme 48

Reactions of 3-(2-chlorophenyl)-1-(4-chlorophenyl)-2-propenone and 3-(2-chlorophenyl)-1-(2-thienyl)-2-propenone with 5-substituted-o-aminothiophenol derivatives in the presence of dry HCl gas and in dry ethanol.