Palladium-Catalyzed Trimethylenemethane Reaction To Form Methylenetetrahydrofurans. Aldehyde and Ketone Substrates and the Tin Effect
The palladium-catalyzed trimethylenemethane (TMM) cycloaddition of carbonyl compounds has been shown to have a strong dependence upon the presence of cocatalysts such as tri-n-butyltin acetate, di-n-butyltin diacetate, or trimethyltin acetate.High-yieldin