Rhodium-mediated asymmetric transfer hydrogenation: a diastereo- and enantioselective synthesis of <i>syn</i>-α-amido β-hydroxy esters
作者:Long-Sheng Zheng、Charlène Férard、Phannarath Phansavath、Virginie Ratovelomanana-Vidal
DOI:10.1039/c7cc08231b
日期:——
syn α-benzoylamido β-hydroxy esters through asymmetric transfer hydrogenation (ATH) with a tethered Rh(III)–DPEN complex via dynamic kinetic resolution (DKR) has been developed for the first time starting from α-benzoylamido β-keto esters. A variety of α-benzoylamido β-keto esters were converted under mild conditions into the corresponding syn α-benzoylamino β-hydroxy esters with high yields (up to 98%)
从α-苯甲酰氨基β-酮开始,首次开发了通过动态动力学拆分(DKR)与Rh(III)-DPEN配合物通过不对称转移氢化(ATH)制备合成α-苯甲酰氨基β-羟基酯的方法。酯。在温和的条件下,将各种α-苯甲酰氨基β-酮酸酯转化为相应的合成α-苯甲酰氨基β-羟基酯,具有高收率(高达98%)和非对映体比率(高达> 99:1 dr)以及优异的对映选择性(高达> 99%ee)。