An asymmetric reductive aldol-type reaction of α,β-unsaturated esters with carbonyl compounds using Rh catalyst and Et2Zn was investigated. A chiral zinc complex from α,β-unsaturated ester was easily generated as the key intermediate from Et2Zn and Wilkinson's catalyst with diisopropyl L-(+)-tartrate to give a variety of enantioenriched β-hydroxy esters. The reaction was also applied to the intramolecular
A highly enantioselective method for the synthesis of β‐hydroxy esters via reductive aldolreaction of acrylates with aryl and heteroaromatic ketones is described. In situ generated catalyst composed of zinc acetate and chiral diamine afforded enantioenriched tertiary alcohols in high yields and with excellent enantioselectivity (up to 91% ee). This is also the first successful application of the zinc
ClickFerrophos families and tested for the Cu(I)-catalyzed asymmetric reductivealdolreaction of ketones and aldehydes with an acrylic ester in the presence of phenylsilane. The Cu(I)-ClickFerrophos complex is efficient for the reaction of ketones with methylacrylate to afford the erythro adducts both highlydiastereo- and enantioselectively; the diastereomeric ratio of erythrolthreo is improved when compared