Phenacyl sulfides photolysis

Photolysis of phenacyl sulfides [125] and the base-mediated 1,2 elimination reaction of sulfenyl derivatives [126] are other general methods of preparation of these reactive species. [Pg.22]

Reaction with thiocarbonyl compounds. The thiocarbonyl compounds obtained by photochemical oxidation of phenacyl sulfides can be trapped efficiently by a 1,3-dipolar cycloaddition with 1 to give 2. This heterocycle can be cleaved to carbonyl compounds by Bu4N F or (CjH5)3N HF. This process is more efficient and more general than photolysis of phenacyl sulfides in the presence of oxygen. [Pg.84]