3-bromo-4-ethyl-1-methyl-2,5-dioxo-4-phenyl-pyrrolidine-3-carbonitrile 、
三苯基膦 以
苯 为溶剂,
反应 72.0h,
生成 3-ethyl-4-[5-ethyl-7-methyl-6-oxo-5-phenyl-4-(triphenyl-λ
5-phosphanylideneamino)-6,7-dihydro-5
H-pyrrolo[3,2-
e][1,3]oxazin-2-ylidene]-1-methyl-3-phenyl-pyrrolidine-2,5-dione