1,2,4,6-Tetramethyl-4-(1',4'-dimethyl-2'-N-benzoylthiocarbamoylmethylen-6'-methylen-piperidin-4'-yl)-1,4-dihydropyridin 在
sodium 作用下,
以
乙醇 为溶剂,
反应 6.0h,
以80%的产率得到[1,4,1',2',4',6'-Hexamethyl-6-methylene-3,4,5,6,1',4'-hexahydro-1H-[4,4']bipyridinyl-(2E)-ylidene]-acetonitrile