Application of the Saegusa Oxidation to Trimethylsilyl Ethers of Diosphenols

Abstract The Saegusa oxidation of trimethylsilyl ethers of diosphenols provided enediones and served as a key reaction in the conversion of δ2-picrasin B to 1β-hydroxy-12-methoxy-picrasa-3,12-diene-2,11-dione, a model for the A ring functionality of many guassinoids.