In the presence of a catalytic amount of bis(1,3-diketonato)oxovanadium(IV) complex, epoxidation of α,β-unsaturated carboxamides with molecular oxygen and an aldehyde proceeds smoothly at room temperature to give the corresponding 2,3-epoxycarboxamides in good yields.
在催化量的双(1,3-二酮)氧
钒(IV)络合物存在下,α,β-不饱和羧酰胺与分子氧和醛的环氧化反应在室温下顺利进行,以良好的产率得到相应的 2,3-环氧羧酰胺。