Chemoselective and Enantioselective Hydrogenation of 2,4-Diaryl-3H -benzo[b ]azepines Catalyzed by Dendritic Phosphinooxazoline Iridium Complexes

Recent Advances in the Enantioselective Synthesis of Chiral Amines via Transition Metal-Catalyzed Asymmetric Hydrogenation

Chiral amines are key structural motifs present in a wide variety of natural products, drugs, and other biologically active compounds. During the past decade, significant advances have been made with respect to the enantioselective synthesis of chiral amines, many of them based on catalytic asymmetric hydrogenation (AH). The present review covers the use of AH in the synthesis of chiral amines bearing a stereogenic center either in the α, β, or γ position with respect to the nitrogen atom, reported from 2010 to 2020. Therefore, we provide an overview of the recent advances in the AH of imines, enamides, enamines, allyl amines, and N-heteroaromatic compounds.

A diversity of recently reported methodology for asymmetric imine reduction

This review describes recent developments in enantioselective imine reduction, including related substrates in which a CN bond is the target for reduction, and in situ methods.

Enantioselective synthesis of tunable chiral pyridine–aminophosphine ligands and their applications in asymmetric hydrogenation

A small library of tunable chiral pyridine–aminophosphine ligands were synthesized based on tetrahydroquinoline scaffolds obtained via Ru-catalyzed asymmetric hydrogenation. The ligands were applied in the Ir-catalyzed asymmetric hydrogenation of olefins and imines.