(3E,5E)-6-[(1'S,2'R,4'S)-4'-hydroxy-1',2'-epoxy-2',6',6'-trimethylcyclohexa-1'-yl]-4-methylhexa-1,3,5-triene 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下,
以
甲苯 为溶剂,
反应 0.25h,
以53%的产率得到(1R,3S,6S)-6-[(1E,3E,5E,7E,9E)-10-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,8-dimethyldeca-1,3,5,7,9-pentaenyl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol