2,6-bis(3-oxo-4-triphenylphosphonio-1-phenylbut-1-yl)pyrrolo[3,4-f]isoindole-1,3,5,7(2H,6H)-tetraone dibromide 在
sodium hydroxide 、
potassium carbonate 作用下,
以
氯仿 为溶剂,
以96%的产率得到2,6-bis[3-oxo-1-phenyl-4-(triphenyl-λ
5-phosphanylidene)but-1-yl]pyrrolo[3,4-f]isoindole-1,3,5,7(2H,6H)-tetraone