Generation of Highly Enantioenriched Crystalline Products in Reversible Asymmetric Reactions with Racemic or Achiral Catalysts
作者:Svetlana B. Tsogoeva、Shengwei Wei、Matthias Freund、Michael Mauksch
DOI:10.1002/anie.200803877
日期:2009.1.5
Backwards is better: By combining forward and backward reaction steps of a reversible chemical process (see scheme) with the physical processes of crystallization, crystal crushing, and dissolution, asymmetric amplification up to 100 % ee can be achieved in the presence of racemic or achiral catalysts starting from a conglomerate of the reaction product 1 with a low enantiomeric excess.
向后更好:通过将可逆化学过程(参见方案)的正向和反向反应步骤与结晶,晶体破碎和溶解的物理过程相结合,在外消旋或非手性存在下,不对称扩增最多可达到100%ee从对映体过量低的反应产物1的团块开始的催化剂。