imidazol(in)ium chlorides with KHCO(3) afforded an easy one step access to air stable imidazol(in)ium hydrogen carbonates, denoted as [NHC(H)][HCO(3)]. In solution, these compounds were found to be in equilibrium with their corresponding imidazol(in)ium carboxylates, referred to as N-heterocyclic carbene (NHC)-CO(2) adducts. The [NHC(H)][HCO(3)] salts were next shown to behave as masked NHCs, allowing
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氯化物与 KHCO(3) 的阴离子复分解提供了一个简单的一步访问空气稳定的
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碳酸氢盐,表示为 [NHC(H)][HCO(3)]。在溶液中,发现这些化合物与其相应的
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羧酸盐平衡,称为 N-杂环卡宾 (NHC)-CO(2) 加合物。[NHC(H)][HCO(3)] 盐接下来被证明表现为掩蔽 NHC,允许 NHC 部分容易地转移到有机和有机
金属基材上,而无需干燥和无氧条件。此外,这种 [NHC(H)][HCO(3)] 前体在分子
化学和聚合物合成的两个选定的有机催化反应中作为预催化剂被成功研究,即
安息香缩合反应和 d,l 的开环聚合-
丙交酯,分别。