3,4-bis(fluorenylidene)-5-(4-fluorophenylcyanomethylene)tetrahydrofuran-2-one 以
甲苯 为溶剂,
反应 10.0h,
以21%的产率得到2-(4-fluorophenyl)-2-(3-oxospiro[4-oxapentacyclo[10.6.1.02,6.08,19.013,18]nonadeca-1,5,8,10,12(19),13,15,17-octaene-7,9'-fluorene]-5-yl)acetonitrile