作者:Zheng-Wei You、Yun-Yun Wu、Feng-Ling Qing
DOI:10.1016/j.tetlet.2004.09.188
日期:2004.12
4,4-Difluoromassoialactone has been synthesized for the first time via a very short sequence, where the ring-closing metathesis (RCM) was employed as a key step. The efficient procedure can easily be extended to the synthesis of other gem-difluoromethylenated α,β-unsaturated-δ-lactone moiety. In addition, the viability of RCM of high electron-deficient olefins has been demonstrated.
通过非常短的序列首次合成了4,4-二氟马来酸内酯,其中采用闭环复分解(RCM)作为关键步骤。该有效方法可以容易地扩展到其他宝石-二氟亚甲基化的α,β-不饱和-δ-内酯部分的合成。另外,已经证明了高电子缺陷烯烃的RCM的可行性。