N-Heterocyclic Pyridylmethylamines: Synthesis, Complexation, Molecular Structure, and Application to Asymmetric Suzuki–Miyaura and Oxidative Coupling Reactions
The synthesis of N,N-bidentate ligands based on a π-deficient N-heterocyclic pyridylmethylamine core is described. The preparation and characterization of the corresponding N,N-ligand–palladium complexes in solution and the solid state are illustrated. Pd complexes showed a good yield and moderate catalytic activity (up to 40% ee) in the asymmetric Suzuki–Miyaura coupling reaction, leading to methoxybinaphthyl
Asymmetric reduction of enantiopure imines with zinc borohydride: stereoselective synthesis of chiral amines
作者:Cristina Cimarelli、Gianni Palmieri
DOI:10.1016/s0957-4166(00)00209-3
日期:2000.6
The first application of zincborohydride in the reduction of enantiopure imines for the stereoselective preparation of both the enantiomers of secondary amines is described. A possible explanation of the stereoselectivity and of the reaction mechanism is suggested on the basis of theoretical calculations.