作者:Jinjin Bai、Shifeng Miao、Yun Wu、Yawen Zhang
DOI:10.1002/cjoc.201180419
日期:2011.11
Asymmetric reduction of 2‐chloro‐3‐oxo esters was achieved by catalytic transfer hydrogenation using [RuCl2(p‐cymene)](S,S)‐TsDPEN as the chiral catalyst and HCOOH‐Et3N as the hydrogen source. Moderate to good yields (up to 85%) and good enantioselectivities (up to 98% ee) were obtained.
通过使用[RuCl 2(p- cymene)](S,S)-TsDPEN作为手性催化剂和HCOOH-Et 3 N作为氢源进行催化转移氢化,可以实现2-氯-3-氧代酸酯的不对称还原。获得了中等至良好的产率(高达85%)和良好的对映选择性(高达98%ee)。