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

Scheme 26

Thermal reaction of (E)-3-(3,4-disubstituted-phenyl)-1-(2-hydroxy-3,4,5-trisubstituted-phenyl)-prop-2-en-1-ones with o-aminothiophenol under the influence of glacial acetic acid.