Nitrones and oxaziridines. IX. Cycloaddition reactions of nitrones with thioketones and the thermal and photochemical properties of some resulting 1,4,2-oxathiazolidines

Abstract

A series of stable 1,4,2-oxathiazolidines (11)-(22) have been prepared by the cycloaddition of the aliphatic thioketones (4)-(6) to the aldonitrones (1), (7)-(10). Thermolysis of the adducts led to their dissociation but the mode of photochemical decomposition of some of these adducts was found to be consistent with the possible formation of intermediate thiaziridines.