Cooperative effect from cation and anion of pyridine-containing anion-based ionic liquids for catalysing CO2 transformation at ambient conditions

Pyridine-containing anion-based ionic liquids（PA-ILs） with two kinds of interaction sites to bind CO2, e.g., [P4444][2-OP], were found to be highly efficient for catalysing the cycloaddition reactions of atmospheric CO2 with epoxides at room temperature under metal-and halogen-free conditions, produ...

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Bibliographic Details
Published in:Science China. Chemistry 2017-07, Vol.60 (7), p.958-963
Main Authors: Yuan, Guangfeng, Zhao, Yanfei, Wu, Yunyan, Li, Ruipeng, Chen, Yu, Xu, Dongmei, Liu, Zhimin
Format: Article
Language:English
Subjects:
Alcohol
Anions
Atmospheric pressure
Carbon dioxide
Carbonates
Cations
Chemicals
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
CO2
Cycloaddition
Ethanol
Green chemistry
Ionic liquids
Laboratories
Phenols
Pyridines
Room temperature
Science
Substrates
催化剂
协同效应
吡啶
室温条件
离子液体
阳离子
阴离子
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Summary:Pyridine-containing anion-based ionic liquids（PA-ILs） with two kinds of interaction sites to bind CO2, e.g., [P4444][2-OP], were found to be highly efficient for catalysing the cycloaddition reactions of atmospheric CO2 with epoxides at room temperature under metal-and halogen-free conditions, producing a series of cyclic carbonates in high yields. It was demonstrated that the cooperative interaction from two interaction sites in the anions of PA-ILs activated CO2, while the cation activated the epoxides substrates via coordination to the central P＋ unit, thus resulting in the high activity of the IL catalysts.
ISSN:1674-7291
1869-1870
DOI:10.1007/s11426-016-0507-7