Reaction of CsOH with triazolium salts affords mesoionic compounds containing an exocyclic oxygen; the same product is obtained by reaction of the corresponding Cu(I) triazolylidenes with CsOH and represents an unusual reactivity pattern of N-heterocyclic carbene precursors that has implications for carbene copper-catalyzed reactions.
CsOH 与三唑鎓盐反应会产生含有一个外环氧的中离子化合物;相应的 Cu(I) 三唑亚基与 CsOH 反应会得到相同的产物,这代表了 N-杂环碳烯前体的一种不寻常的反应模式,对碳烯
铜催化反应具有重要意义。