Studies on Azole Compounds. IV. Reaction of 2, 5-Diarylthiazole 3-Oxides with Acetic Anhydride. Isolation of the Intermediates, 4, 5-Diacetoxy-2, 5-diaryl-4, 5-dihydrothiazoles

Abstract

The reaction of 2, 5-diarylthiazole 3-oxides (IIa-e) with acetic anhydride was studied. The intermediates of this reaction, 4, 5-diacetoxy-2, 5-diaryl-4, 5-dihydrothiazoles (Va-1-Ve-1, Va-2-Ve-2), were isolated and their structures were determined by their chemical behavior and spectral data.