Selective Reduction of the Exomethylene Group of α-Methylene γ- or δ-Lactones with CdCl2–Mg–MeOH–H2O‡
Abstract
The strained exomethylene group of the α-methylene γ- or δ-lactone moiety in sesquiterpenoids can be selectively reduced with the CdCl2–Mg–MeOH–H2O reagent system.