Improving the Configurational Stability of Chiral-at-Iron Catalysts Containing Two -(2-Pyridyl)-Substituted N-Heterocyclic Carbene Ligands.

Recently, we introduced the first example of chiral-at-iron catalysts in which two achiral -(2-pyridyl)-substituted N-heterocyclic carbene (NHC) ligands in addition to two labile acetonitriles are coordinated around a central iron, to generate a stereogenic metal center [Hong Y.Chiral-at-Iron Catalyst: Expanding the Chemical Space for Asymmetric Earth-Abundant Metal Catalysis. J.