[(1S,1aR,3R,3aR,6aR,6bS)-3-(tert-Butyl-dimethyl-silanyloxymethyl)-5,5-dimethyl-hexahydro-2,4,6-trioxa-cyclopropa[e]inden-1-yl]-methanol 、
对硝基苯甲酸 在
三苯基膦 、
偶氮二甲酸二乙酯 作用下,
以
四氢呋喃 为溶剂,
生成 4-Nitro-benzoic acid (3aR,4R,7R,7aR)-4-(tert-butyl-dimethyl-silanyloxymethyl)-2,2-dimethyl-7-vinyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6-yl ester