AN EFFICIENT SYNTHESIS OF JOLKINOLIDE E INVOLVING THE BUTENOLIDE RING FORMATION BY INTRAMOLECULAR WITTIG REACTION
作者:Shigeo Katsumura、Sachihiko Isoe
DOI:10.1246/cl.1982.1689
日期:1982.10.5
A synthesis of jolkinolide E from the bicyclic enone 3 using intramolecular Wittig reaction is described. In this synthesis a facile esterification method by means of a mixed anhydride of trichloroacetic acid catalyzed by DMAP, which culminates in the effective synthesis of the α,β,γ-trisubstituted butenolide ring, is also described.
描述了使用分子内 Wittig 反应从双环烯酮 3 合成 jolkinolide E。在该合成中,还描述了通过 DMAP 催化的三氯乙酸混合酸酐的简便酯化方法,最终有效合成了 α,β,γ-三取代丁烯内酯环。