Rh(I)/DpenPhos catalyzed asymmetric hydrogenation of enol esters and potassium (E)-3-cyano-5-methylhex-3-enoate
作者:Yan Liu、Zheng Wang、Kuiling Ding
DOI:10.1016/j.tet.2012.05.096
日期:2012.9
class of modular chiral monodentate phosphoramidites were highly efficient for the asymmetric hydrogenation of enolesters bearing α-aryl or α-alkyl groups, to afford the corresponding hydrogenation products in high enantioselectivities (87–95% ee) and reactivities (turnover number up to 10,000). These ligands were also shown to be effective in Rh(I)-catalyzed asymmetric hydrogenation of the potassium