7-(trimethylsilyloxy)octahydrospiro[2,4,1-(epiethane[1,1,2]triyl)cyclobuta[cd]pentalene-5,2'-[1,3]dioxolane]-7-carbonitrile 在
sulphated zirconia 作用下,
以
乙腈 为溶剂,
反应 0.33h,
以91.7%的产率得到7-cyanooctahydrospiro[2,4,1-(epiethane[1,1,2]triyl)cyclobuta[cd]pentalene-5,2'-[1,3]dioxolane]-7-ol