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

Scheme 56

Reaction of (E)-1-(2-hydroxyphenyl)-3-(p-substituted phenyl)prop-2-en-1-ones with 1-amino-2-mercapto-5-phenyl-1,3,4-triazole in the presence of a catalytic amount of sodium acetate in DMSO.