期刊
CHEMCATCHEM
卷 7, 期 1, 页码 94-98出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201402754
关键词
CO2 fixation; cyclization; hydrogen bonds; organocatalysis; sustainable chemistry
资金
- TUM Graduate School
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.
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