Knoevenagel冷凝
离子液体
催化作用
化学
共价键
绿色化学
盐(化学)
缩合反应
溶剂
有机化学
组合化学
作者
Xiaochen Zhang,Yue Zhao,Jikuan Qiu,Zhiyong Li,Jianji Wang,Jianji Wang
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2020-12-07
卷期号:8 (50): 18413-18419
被引量:65
标识
DOI:10.1021/acssuschemeng.0c05294
摘要
Ionic liquids (ILs) have gained significant attention in past decades due to their important characteristics and superior application potential. However, liquid nature is a big hindrance to the further development and applications of ILs. In this work, we report a simple acid–base neutralization strategy used to graft imidazolium salts into covalent organic frameworks (COFs) for the catalysis of CO2 chemical fixation and the Knoevenagel condensation reaction. It is found that in comparison with liquid IL, the as-synthesized material shows much better catalytic ability for the above reactions. In addition, both of the reactions proceed efficiently under solvent-free conditions, which provides a green and sustainable way in potential applications.
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