Highly Diastereo- and Enantioselective Synthesis of Monodifferentiated <i>syn</i>-1,2-Diol Derivatives through Asymmetric Transfer Hydrogenation via Dynamic Kinetic Resolution
α-alkoxy-substituted syn-β-hydroxyesters throughhighly efficient catalytic asymmetric transfer hydrogenation via dynamic kineticresolution reactions from the corresponding racemic β-ketoesters is described. In this atom-economical process, two contiguous stereogenic centers are generated simultaneously with an excellent diastereoselectivity (up to 99/1) and enantioselectivity (up to 99%), allowing a rapid access
The asymmetricreduction of α‐methoxy β‐ketoesters through transfer hydrogenation with a new rhodium(III) complex was developed. The reaction was efficient in 2‐MeTHF with formic acid/triethylamine or in water with sodium formate. The corresponding syn α‐methoxy β‐hydroxyesters were obtained with high diastereoselectivities and excellent levels of enantioselectivity through a dynamic kinetic resolution