作者:Matthias Böge、Jürgen Heck
DOI:10.1002/ejic.201500306
日期:2015.6
have been studied in transition-metal-catalyzed hydrogenations in recent decades. Herein, we report the diastereoselective synthesis of trans-dichlorido(bisphosphane)ruthenium(II) complexes with four different methyl 2,3-diamino-4,6-O-benzylidene-2,3-dideoxy-α-D-hexopyranosides and their application as catalyst precursors in asymmetric hydrogenation reactions. Depending on the hexopyranose, an enantiomeric
近几十年来,人们在过渡金属催化的氢化反应中研究了碳水化合物配体。在此,我们报告了具有四种不同甲基 2,3-diamino-4,6-O-benzylidene-2,3-dideoxy-α-D-hexopyranosides 的反式二氯(双膦)钌(II)配合物的非对映选择性合成及其在不对称加氢反应中作为催化剂前体的应用。取决于吡喃己糖,获得了高达 78% 的对映体过量。