(E)-methyl 2-((S)-5-((S)-1-hydroxyhex-5-enyl)-5-methoxyfuran-2(5H)-ylidene)-3-oxohept-6-enoate 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
生成 (1E,6Z,11S,12S)-methyl 11-hydroxy-12-methoxy-3-oxo-15-oxabicyclo[10.2.1]pentadeca-1,6,13-triene-2-carboxylate 、
(1E,6E,11S,12S)-methyl 11-hydroxy-12-methoxy-3-oxo-15-oxabicyclo[10.2.1]pentadeca-1,6,13-triene-2-carboxylate