[(3aR,5S,6S,6aR)-6-ethenyl-2,2-dimethyl-6-phenylmethoxy-5,6a-dihydro-3aH-furo[2,3-d][1,3]dioxol-5-yl]-[(1R,2R,4R)-2,4-bis(ethenyl)cyclopentyl]methanone 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
二氯甲烷 为溶剂,
反应 6.0h,
以86%的产率得到(1S,3R,5R,7R,10S,11R,15R)-5-ethenyl-13,13-dimethyl-10-phenylmethoxy-12,14,16-trioxatetracyclo[8.6.0.03,7.011,15]hexadec-8-en-2-one