This report provides a critical overview of recent developments in the use of N-heterocyclic carbenes (NHCs) with transition metals. For these NHC ligand-containing complexes, an analysis is focused on their performance and scope in catalysis. There is also an increasing interest in the role of nucleophilic carbenes as organocatalysts; the latest advances in applications of NHCs in organocatalysis are also reviewed.
N-Heterocyclic carbenes: Advances in transition metal-mediated transformations and organocatalysis
Annu. Rep. Prog. Chem. B 2007, 103, 193-222.