苯甲酰腈 、
2-<(α-ethoxybenzylidene)amino>-1,3,2-dioxaphospholane 以
乙醚 为溶剂,
以66.5%的产率得到1,3,2-dioxaphospholane-2-spiro-7'-(4',5',9',10'-tetraphenyl-4',9'-dicyano-5',10'-diethoxy-3',8'-dioxa-1',6'-diaza-2'λ
5,7'λ
5-diphosphatricyclo<5.3.0.0
2',6'>decane)-2''-1'',3'',2''-dioxaphospholane