An N-Heterocyclic Carbene Ligand with an Oxalamide Backbone
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