A New Dirhodium(II) Carboxamidate Complex as a Chiral Lewis Acid Catalyst for Enantioselective Hetero-Diels-Alder Reactions

摘要

Over the last decade,the exceptional power of chiral dirhodium(II) carboxylate and carboxamidate catalysts has been demonstrated in a diverse array of enantioselective metal carbene transformations of diazocarbonyl compounds.Aside from the superiority in diazo decomposition,a dirhodium(II) complex with vacant coordination sites at the axial position of each octahedral rhodium center is Lewis acidic as the molecule has a high affinity for axial ligands.