作者:Wang, Han、Xun, Shan-Shan、Yu, Chang-Bin、Zhou, Yong-Gui
DOI:10.1039/d4sc01890g
日期:——
Asymmetric hydrogenation of esters through homogeneous catalysis is a significantly important transformation in organic synthesis. The systems developed so far mainly focused on chiral iridium and ruthenium catalysts, which required a base to facilitate the activity. Herein, we present a palladium-catalyzed asymmetric hydrogenation of lactones under base-free conditions through dynamic kinetic resolution
通过均相催化进行酯的不对称氢化是有机合成中非常重要的转化。迄今为止开发的系统主要集中在手性铱和钌催化剂上,这需要碱来促进活性。在此,我们通过动态动力学拆分和动力学拆分提出了在无碱条件下钯催化内酯的不对称氢化。该反应表现出高对映选择性和优异的官能团耐受性。值得注意的是,氢化反应在克级顺利进行,并且产物可以转化为几种手性潜在结构单元,而不会损失光学纯度。该工作为无碱条件下酯的不对称氢化提供了新的策略。