Some recent work where N-heterocyclic carbenes (NHC) are used in catalysis is described. A family of [(NHC)PdCl2](2) complexes has been synthesized and is a storable amination catalyst that is tolerant of both moisture and air. Various NHC add to [Pd(allyl)(Cl)](2), cleaving this dimer and forming a highly active, versatile pre-catalyst for the formation of C-N and C-C bonds. N-heterocyclic carbenes are also utilized as highly efficient transesterification catalysts converting vinyl and methyl substrates to more useful or desirable esters.
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