bicyclo (2.2.2) oct-7-ene-2,3,5,6-tetracarboxylic dianhydride 、 (butane-1,4-diyl)dimagnesium dibromide 以
四氢呋喃 为溶剂,
反应 2.0h,
生成
2',6':8',12'-exo,exo-dispirodioxatetracyclo<5.5.2.02,6.08,12>tetradec-13'-ene-3',9'-dione-11',1''-cyclopentane> 、 2',6':8',12'-exo,exo-dispiro
dioxatetracyclo<5.5.2.02,6.08,12>tetradec-13'-ene-3',11'-dione-9',1''-cyclopentane>