N-Heterocyclic carbene was employed as an efficient organic catalyst to catalyze a cascade epoxide-opening and lactonization reaction. This organocatalytic process could transform various readily accessible γ-epoxy-α,β-enals into dihydropyrone derivatives in good to excellent yields.
N-杂环卡宾被用作有效的有机催化剂,以催化级联的
环氧化物开环和内酯化反应。这种有机催化过程可以将各种容易获得的γ-环氧-α,β-烯醛转变为二氢
吡喃酮 衍生品,收益率高至优。