作者:Emmanuelle Despagnet-Ayoub、Robert H. Grubbs
DOI:10.1021/ja047892d
日期:2004.8.1
The synthesis of the first four-membered N-heterocyclic carbene is described. Depending on the substituents on the nitrogen atoms, it is possible to characterize at room temperature the carbene dimer or the free carbene. Crystallographic analyses are provided for these carbene species.
描述了第一个四元 N-杂环卡宾的合成。根据氮原子上的取代基,可以在室温下表征卡宾二聚体或游离卡宾。为这些卡宾物种提供了晶体学分析。