Intramolecularly two-centered cooperation catalysis for the synthesis of cyclic carbonates from CO2 and epoxides

被引：83

作者：

Zhang, Xiang ^{[1
]}

Jia, Yin-Bao ^{[1
]}

Lu, Xiao-Bing ^{[1
]}

Li, Bo ^{[1
]}

Wang, Hui ^{[1
]}

Sun, Li-Cheng ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China

[2] Royal Inst Technol, KTH Chem, S-10044 Stockholm, Sweden

来源：

TETRAHEDRON LETTERS | 2008年 / 49卷 / 46期

关键词：

D O I：

10.1016/j.tetlet.2008.09.035

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A catalyst system containing an electrophilic center and a sterically hindered nUcleophilic center in one molecule was applied to the cycloaddition reaction of CO2 and epoxides. This intramolecularly two-centered cooperation catalyst showed activity even at a high [epoxide]/[catalyst] ratio up to 50000 under mild conditions such as solvent-free, ambient temperature, and low CO2 pressure. The reaction of CO2 with (S)-propylene oxide at 80 degrees C in the presence of the bifunctional catalyst gives (S)-propylene carbonate in 96% ee with retention of stereochemistry. (C) 2008 Elsevier Ltd. All rights reserved,

引用

页码：6589 / 6592

页数：4

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