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Thiourea-Based Bifunctional Ionic Liquids as Highly Efficient Catalysts for the Cycloaddition of CO2 to Epoxides
Xu, Fei; Cheng, Weiguo; Yao, Xiaoqian; Sun, Jian; Sun, Wei; Zhang, Suojiang
2017-07-01
发表期刊CATALYSIS LETTERS
ISSN1011-372X
卷号147期号:7页码:1654-1664
摘要A series of thiourea-based ionic liquids (TBILs) were developed as efficient catalysts for the synthesis of cyclic carbonates by the cycloaddition of CO2 with epoxides under metal-, cocatalyst- and solvent-free conditions. Different substituted groups including electron donating and withdrawing groups were introduced onto the para-position of the aromatic ring in cation of TBILs. The effect of the catalyst structures on the reaction activity was systematically investigated. Among the ionic liquids, TBIL3 with substituted OCH3 group showed the best performance with 99% propylene oxide conversion as well as 99% propylene carbonate selectivity under mild conditions (1.5 MPa, 130 A degrees C and 3 h) without any co-solvent. It was demonstrated that two secondary amine groups of the thiourea unit could dually activate the epoxides and CO2 and have a synergetic effect with the halide anion.
关键词Co2 Utilization Ionic Liquids Cycloaddition Thiourea Hydrogen Bond Synergetic Effect
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s10562-017-2081-x
收录类别SCI
语种英语
关键词[WOS]CARBON-DIOXIDE ; CYCLIC CARBONATES ; CHEMICAL FIXATION ; BOND FORMATION ; METAL-FREE ; CONVERSION ; OXIDE ; TRANSFORMATION ; SOLVENTS ; CAPTURE
WOS研究方向Chemistry
WOS类目Chemistry, Physical
项目资助者National Natural Science Foundation of China(21506226 ; National Key Projects for Fundamental Research and Development of China(2016YFB0600903) ; 21476245 ; 91434107)
WOS记录号WOS:000403355400005
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22628
专题多相复杂系统国家重点实验室
作者单位Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China
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Xu, Fei,Cheng, Weiguo,Yao, Xiaoqian,et al. Thiourea-Based Bifunctional Ionic Liquids as Highly Efficient Catalysts for the Cycloaddition of CO2 to Epoxides[J]. CATALYSIS LETTERS,2017,147(7):1654-1664.
APA Xu, Fei,Cheng, Weiguo,Yao, Xiaoqian,Sun, Jian,Sun, Wei,&Zhang, Suojiang.(2017).Thiourea-Based Bifunctional Ionic Liquids as Highly Efficient Catalysts for the Cycloaddition of CO2 to Epoxides.CATALYSIS LETTERS,147(7),1654-1664.
MLA Xu, Fei,et al."Thiourea-Based Bifunctional Ionic Liquids as Highly Efficient Catalysts for the Cycloaddition of CO2 to Epoxides".CATALYSIS LETTERS 147.7(2017):1654-1664.
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