Hydroxy-Functionalized Imidazolium Bromides as Catalysts for the Cycloaddition of CO2 and Epoxides to Cyclic Carbonates

被引：137

作者：

Anthofer, Michael H. ^{[1
,2
]}

Wilhelm, Michael E. ^{[1
,2
]}

Cokoja, Mirza ^{[1
,2
]}

Drees, Markus ^{[1
,2
]}

Herrmann, Wolfgang A. ^{[1
,2
]}

Kuehn, Fritz E. ^{[1
,2
]}

机构：

[1] Tech Univ Munich, Catalysis Res Ctr, Chair Inorgan Chem Mol Catalysis, D-85747 Garching, Germany

[2] Tech Univ Munich, Dept Chem, D-85747 Garching, Germany

来源：

CHEMCATCHEM | 2015年 / 7卷 / 01期

关键词：

CO2; fixation; cyclization; hydrogen bonds; organocatalysis; sustainable chemistry; HIGHLY EFFICIENT SYNTHESIS; CHEMICAL FIXATION; ORGANIC CARBONATES; IONIC LIQUIDS; DIOXIDE; CONVERSION; PENTAERYTHRITOL; TRANSFORMATION; HALIDE; KI;

D O I：

10.1002/cctc.201402754

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Hydroxy-functionalized mono- and bisimidazolium bromides were synthesized and applied as catalysts for the cycloaddition of CO2 and epoxides to cyclic carbonates. A catalyst screening showed the influence of the number of protic hydrogen atoms at the cation for the activation of epoxides. The most active catalyst operates at very mild reaction conditions (70 degrees C, 0.4 MPa CO2) and can be easily recycled ten times without loss of activity.

引用

页码：94 / 98

页数：5

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