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强亲核性的N-杂环卡宾(N-heterocyclic carbenes,NHC)是近年来研究最为活跃的一类小分子有机催化剂。本文综述了NHC-CO2的合成方法和NHC-CO2参与的4类重要反应。探讨了NHC-CO2作为NHC转移试剂参与的配位反应;作为CO2转移试剂和催化剂调控的CO2固定和碳酸酯合成;作为羧基配体与过渡金属配位;作为潜在的NHC催化剂催化环状单体开环聚合反应等应用。最后,展望了其发展前景。
The strongly nucleophilic N-heterocyclic carbenes (NHCs) are the most studied small-molecule organic catalysts in recent years. This article reviews the synthesis of NHC-CO2 and four types of important reactions involving NHC-CO2. The coordination reaction of NHC-CO2 as an NHC transfer reagent, CO2 fixation and carbonate synthesis as a CO2 transfer reagent and catalyst, coordination with transition metal as a carboxyl ligand, as a potential NHC catalyst for the cyclization of cyclic monomers Ring-opening polymerization applications. Finally, the prospects of its development are forecasted.