Caballero Ana, Pérez Pedro J
Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC CIQSO-Centro de Investigación en Química, Sostenible and Departamento de Química, Universidad de Huelva, 21007, Huelva, Spain.
Chemistry. 2017 Oct 17;23(58):14389-14393. doi: 10.1002/chem.201702392. Epub 2017 Aug 21.
The current use of the term carbenoid is discussed, particularly in the context of carbene transfer reactions from diazo compounds, in which intermediates of type L M=CR R , or one of its resonance forms, are tagged which such a name. We discuss this issue, on the basis of the data evidencing the metal-carbene nature of those intermediates, as well as the existence of carbenoids of type (N )(M)CR R en route to the formation to L M=CR R from diazo reagents. We propose the exclusive use of the carbenoid term to species of type (X)(M)CR R with a tetrasubstituted carbon center that upon loss of X afford an effective carbene transfer process.
本文讨论了类卡宾这一术语目前的使用情况，特别是在重氮化合物的卡宾转移反应背景下，其中L M=CR R类型的中间体或其共振形式之一被赋予了这样一个名称。我们基于证明这些中间体的金属卡宾性质的数据，以及在从重氮试剂形成L M=CR R的过程中存在(N )(M)CR R类型的类卡宾这一情况，来讨论这个问题。我们建议将类卡宾这一术语专门用于具有四取代碳中心的(X)(M)CR R类型的物种，该物种在失去X后能实现有效的卡宾转移过程。
