Ring-Expanded N-Heterocyclic Carbene (reNHC) Complexes: Applications in Transition Metal Catalysis
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In the past two decades, NHCs (NHC = N-heterocyclic carbenes) have emerged as one of the most important classes of ligands in transition metal catalysis. Although historically 5-membered carbenes, such as imidazol-2-ylidenes, have been the dominant class of NH... ...
