A novel synthetic method for γ-butyrolactones is presented. The process involves high regioselectivity to afford γ-lactones. In cases of trichloroacetates of secondary allylic alcohols, high cis-selective cyclization is accomplished.
                                    提出了一种新型的
γ-丁内酯合成方法。该方法涉及高区域选择性以提供γ-内酯。在仲烯丙基醇的
三氯乙酸盐的情况下,实现了高顺式选择性环化。