An acyloxysulfone ring-closing metathesis/sulfone elimination sequence has been developed for the preparation of various γ-alkylidene butenolides. The elimination is proposed to proceed via an E1cb mechanism leading to (Z)-γ-alkylidene butenolides as the major products.
已经开发了一种酰氧基砜闭环复分解/砜消除序列,用于制备各种 γ-亚烷基
丁烯内酯。建议通过 E1cb 机制进行消除,导致 (Z)-γ-亚烷基
丁烯内酯作为主要产物。