Asymmetric Synthesis of α-Chiral Hydroxyalkylphosphines by a Catalytic Enantioselective Reduction of Acylphosphines
摘要:
Enantioselective reduction of acylphosphines, after precomplexation with borane, proceeded smoothly in the presence of a chiral oxazaborolidine catalyst and catecholborane. alpha-Hydroxyalkylphosphine products were obtained as phosphineborane complexes in good yield and enantioselectivity. One of the products of the enantioselective reduction was successfully applied as an optically active phosphine ligand for asymmetric catalysis after suitable derivatization.
Enantioselective reduction of acylphosphines, after precomplexation with borane, proceeded smoothly in the presence of a chiral oxazaborolidine catalyst and catecholborane. alpha-Hydroxyalkylphosphine products were obtained as phosphineborane complexes in good yield and enantioselectivity. One of the products of the enantioselective reduction was successfully applied as an optically active phosphine ligand for asymmetric catalysis after suitable derivatization.