作者:Markus Braun、Walter Frank、Guido J. Reiss、Christian Ganter
DOI:10.1021/om100728n
日期:2010.10.25
The preparation of the novel N-heterocyclic carbene ligand 3 based on an oxalamide backbone is described. Carbene 3 is not stable as a monomeric species at ambient temperature but dimerizes to the olefin 4 in the absence of trapping reagents. Carbene 3 reacts with elemental sulfur, tert-butylisocyanide, or [M(COD)Cl]2 (M = Rh, Ir) to give thione 5, ketenimine 6, or complexes [(3)M(COD)Cl] (7), respectively
描述了基于草酰胺骨架的新型N-杂环卡宾配体3的制备。碳3在环境温度下作为单体物质不稳定,但在不存在捕集剂的情况下会二聚为烯烃4。卡宾3种发生反应与元素硫,叔-butylisocyanide,或[M(COD)CL] 2(M =铑,铱),得到硫酮5,烯酮亚胺6,或配合物[(3)M(COD)CL](7) , 分别。二羰基配合物[(3)M(CO)2 Cl](8)(M = Rh,Ir)显示高能CO振动。与其他NHC配体相比,卡宾配体3表现为非常差的净电子给体。