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Interfacial frustrated Lewis pairs of CeO2 activate CO2 for selective tandem transformation of olefins and CO2 into cyclic carbonates
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2019-07-10 , DOI: 10.1021/jacs.9b03217
Sai Zhang 1 , Zhaoming Xia 1 , Yong Zou 1 , Fangxian Cao 1 , Yuxuan Liu 1 , Yuanyuan Ma 1 , Yongquan Qu 1
Affiliation  

Effective activation of CO2 is a prerequisite for efficient utili-zation of CO2 in organic synthesis. Precisely controlling the interfacial events of solids shows potential for activation. Herein, defect-enriched CeO2 with constructed interfacial frustrated Lewis pairs (FLPs, two adjacent Ce3+…O2-, Figure 1) effectively activates CO2 via the interactions between C/Lewis basic lattice O2- and the two O atoms in CO2/two adjacent Lewis acidic Ce3+ ions. Selective cyclic carbonate production from a catalytically tandem protocol of olefins and CO2 is used to demonstrate FLP-inspired CO2 activation.

中文翻译:

CeO2 的界面受阻路易斯对激活 CO2,选择性地将烯烃和 CO2 串联转化为环状碳酸酯

CO2 的有效活化是在有机合成中有效利用 CO2 的先决条件。精确控制固体的界面事件显示出激活的潜力。在此,缺陷富集的 CeO2 与构造的界面受挫路易斯对(FLP,两个相邻的 Ce3+…O2-,图 1)通过 C/Lewis 基本晶格 O2- 和 CO2/两个相邻路易斯中的两个 O 原子之间的相互作用有效地激活了 CO2酸性 Ce3+ 离子。从烯烃和 CO2 的催化串联协议中选择性生产环状碳酸酯用于证明 FLP 启发的 CO2 活化。
更新日期:2019-07-10
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