Chiral Porous Hybrid Solids for Practical Heterogeneous Asymmetric Hydrogenation of Aromatic Ketones
作者:Aiguo Hu、Helen L. Ngo、Wenbin Lin
DOI:10.1021/ja0348344
日期:2003.9.1
Chiral porous zirconium phosphonates containing Ru-BINAP-DPEN moieties were synthesized via a molecular building-block approach, and characterized by a variety of techniques including TGA, adsorption isotherms, XRD, SEM, IR, and microanalysis. These hybrid solids were used for enantioselective heterogeneous asymmetric hydrogenation of aromatic ketones with remarkably high ee values of up to 99.2%.
含有 Ru-BINAP-DPEN 部分的手性多孔膦酸锆是通过分子构建块方法合成的,并通过各种技术进行表征,包括 TGA、吸附等温线、XRD、SEM、IR 和微量分析。这些杂化固体用于芳香酮的对映选择性多相不对称氢化,具有高达 99.2% 的非常高的 ee 值。这些固体催化剂还可以轻松回收和重复使用八次,而不会损失活性和对映选择性。这种分子构建块方法的现成可调性将允许优化这些混合材料,并有望导致其他实用的非对称非对称催化剂。