Benzo[1,5]thiazepine: Synthesis, Reactions, Spectroscopy, and Applications
Scheme 27
Intramolecular cyclisation of 3-((2-amino-4-pheny/substituted-phenyllthio)-(phenyl)methyl)pentane-2,4-diones or -hexane-2,4-diones followed by dehydration in acetic acid/methanol.