5,6-Dimethyl-exo-bicyclo <2.2.1> hepten-(2)-dicarbonsaeure-(5,6)-anhydrid 、
乙酸烯丙酯 在
[2-(1-methylethoxy-κO)phenylmethyl-κC](nitrato-κO,κO′){rel-(2R,5R,7S)-tricyclo[3.3.1.1
3,7]decane-2,1-diyl[3-(2,4,6-trimethylphenyl)-1-imidazolidinyl-2-ylidene]}ruthenium 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以65%的产率得到[(Z)-3-[(3aR,4S,6R,6aS)-6-ethenyl-3a,6a-dimethyl-1,3-dioxo-5,6-dihydro-4H-cyclopenta[c]furan-4-yl]prop-2-enyl] acetate