化学
吡啶
吡啶
阳离子聚合
催化作用
离子键合
共价键
离子液体
产量(工程)
超分子化学
组合化学
有机化学
分子
离子
材料科学
冶金
作者
Ming‐Hui Chen,Jiabin Zhang,Chenxi Liu,Hongrui Li,Hewei Yang,Yaqing Feng,Zhenan Bao
出处
期刊:Organic Letters
[American Chemical Society]
日期:2021-02-24
卷期号:23 (5): 1748-1752
被引量:33
标识
DOI:10.1021/acs.orglett.1c00175
摘要
The difficulties in the separation of products from the reaction mixture and the recovery of the organic cationic ionic liquids (OCILs) catalysts still need to be addressed. Post modification of the pyridine unit in the covalent organic framework (COF) via the formation of pyridinium salts with the chiral bromoacetate led to the chiral ionic COF with OCIL “immobilized”, which was utilized as a heterogeneous catalyst for asymmetric Henry reactions with high yield and excellent stereoselectivity.
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