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缺电子Rh-BINAP催化剂催化氢化富电性底物的机理研究
作者姓名:黄碧玉  吴海臣  杨镜奎
作者单位:1. 中国科学院研究生院化学与化学工程学院, 北京 100049;2. 中国科学院高能物理研究所, 北京 100049
基金项目:Supported by the Project of the National Natural Science Foundation of China(20972159) and the President Fund of GUCAS
摘    要:合成了4种富电性的脱氢α-氨基酸衍生物,将缺电子催化剂Rh-3,5-CF3-(R)-BINAP用于这几种底物的不对称氢化反应中. 讨论了底物上取代基及空间位阻对对映选择性的影响.

关 键 词:富电性底物  缺电子催化剂  不对称氢化  机理  
收稿时间:2011-05-06
修稿时间:2011-05-12

Mechanistic study on hydrogenation of electron-rich substrates with electron-deficient Rh-BINAP catalyst
Authors:HUANG Bi-Yu  WU Hai-Chen  YANG Jing-Kui
Institution:1. College of Chemistry and Chemical Engineering, Graduate University, Chinese Academy of Sciences, Beijing 100049, China;2. Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Abstract:Four electron-rich α-acetamidocinnamic acid derivatives were prepared and used as substrates in the asymmetric hydrogenation catalyzed by electron-deficient Rh-3,5-CF3-(R)-BINAP. Influence of the electronic properties of substituted groups in the substrates and their steric hindrance on the enantioselectivity of the product were discussed.
Keywords:electron-rich substrates                                                                                                                        electron-deficient Rh-BINAP catalyst                                                                                                                        asymmetric hydrogenation                                                                                                                        mechanism
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