Dynamic Kinetic Resolution of α-Keto Esters via Asymmetric Transfer Hydrogenation
作者:Kimberly M. Steward、Emily C. Gentry、Jeffrey S. Johnson
DOI:10.1021/ja3027136
日期:2012.5.2
The dynamic kineticresolution of β-aryl α-keto esters has been accomplished using a newly designed (arene)RuCl(monosulfonamide) transfer hydrogenation catalyst. This dynamic process generates three contiguous stereocenters with remarkable diastereoselectivity through a reduction/lactonization sequence. The resulting enantioenriched, densely functionalized γ-butyrolactones are of high synthetic utility