Synthesis of cyclic β-silylenones via oxidative rearrangement of tertiary α-hydroxy allylsilanes with PCC

Abstract An oxidative rearrangement of cyclic tertiary α -hydroxy allylsilanes has been carried out in refluxing ClCH 2 CH 2 Cl with pyridinium chlorochromate (PCC). The reaction provides a convenient method to synthesize cyclic β -silylenones in modest to excellent yields.