(三苯基膦)乙腈

1,3-茚满二酮

邻硝基苯甲醛

4-(furan-2-yl)-1-(2-(methylthio)pyridin-3-yl)-1-(triphenyl-5-phosphanylidene)but-3-en-2-one

(E)-methyl 2-cyanomethyl-3-[2-N-(triphenylphosphoranylidene)phenyl]propenoate