1-(2-甲基-1-环戊烯基)乙酮 、
1-[1-((1,1-dimethylethyl)dimethylsiloxy)]ethenyl-2-methylcyclopentene 在
Aluminum;bis(trifluoromethylsulfonyl)azanide;carbanide 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以56%的产率得到1-((5aRS,8aSR,8bRS)-4-((tert-butyldimethylsilyl)oxy)-5a,8b-dimethyl-1,2,3,5,5a,6,7,8,8a,8bdecahydro-as-indacen-8a-yl)ethanone