1''-((2R,3R)-2-((1'S,2'S,3'S)-3'-(4-methoxybenzyloxy)-2'-methyl-5'-methylenecyclopentyl)-5-oxotetrahydrofuran-3-yl)-3''-methylbut-3''-enyl acetate 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
甲苯 为溶剂,
反应 6.0h,
以70%的产率得到(3aR,4S,8S,9S,9aS,9bR)-8-(4-methoxybenzyloxy)-6,9-dimethyl-2-oxo-2,3,3a,4,5,7,8,9,9a,9b-decahydroazuleno[4,5-b]furan-4-yl acetate