[(3aR,5S,6R,6aR)-5-[(1S,2S,4S)-2,4-bis(ethenyl)cyclopentanecarbonyl]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-6-yl] prop-2-enoate 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
苯 为溶剂,
反应 1.0h,
以65%的产率得到(1S,3S,5S,7S,8Z,12R,13R,17R)-5-ethenyl-15,15-dimethyl-11,14,16,18-tetraoxatetracyclo[10.6.0.03,7.013,17]octadec-8-ene-2,10-dione