Photochemical rearrangement of 3-methyl-2-methylthio-5-phenyl-(1,3-thiazol-4-ylio)oxide to 3-methyl-4-methylthio-5-phenyl-1,3-thiazol-2-one
Abstract
Irradiation of 3-methyl-2-methylthio-5-phenyl(1,3-thiazol-4-ylio)oxide (I) in ethanol solution resulted in a novel type of rearrangement for a mesoionic system, giving rise to the isomeric 3-methyl-4-methylthio-5-phenyl-1,3-thiazol-2-one (II).