Photolysis of thioketene S-oxides
Abstract
In contrast to the photolytically-induced ring closure of diarylthioketone S-oxides into oxathi-iranes, thioketene S-oxides are found to undergo photo-deoxygenation in a reaction between the excited thioketene S-oxide molecule and the solvent. The relative quantum yield was studied as a function of the solvent and the sterical hindrance of the thioketene S-oxide and correlated with available p.e.s. data. The mechanism is discussed.