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Synthesis of Cyclic Carbonate Catalyzed by DBU Derived Basic Ionic Liquids
Li, Wei1; Cheng, Weiguo2; Yang, Xia2; Su, Qian2; Dong, Lihui1; Zhang, Pan1; Yi, Yunan1; Li, Bin1; Zhang, Suojiang2
2018-04-01
发表期刊CHINESE JOURNAL OF CHEMISTRY
ISSN1001-604X
卷号36期号:4页码:293-298
摘要In this work, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), 1,5-diazabicyclo[4.3.0]-5-nonene (DBN), and imidazole (MIM)-derived bromide ionic liquids (ILs) were synthesized and used to catalyze the cycloaddition reactions of carbon dioxide (CO2) with several kinds of epoxides to form cyclic carbonates. The DBU derived bromide ionic liquid system was found to have the best catalytic activity among all the tested ILs. The influences of reaction conditions (including temperature, pressure and reaction time) on the reaction of CO2 to propylene oxide (PO) were studied to show the best conditions of 120 degrees C, 1 MPa, 2.5 h catalyzed by 2 mol% DBU-derived bromide ionic liquid, with the conversion of PO and the selectivity of propylene carbonate (PC) reaching 99% and 99%, respectively. Under the optimum reaction conditions, the ionic liquid system could be reused at least five times without decrease in selectivity and conversion. NMR spectroscopy and DFT calculations were used to reveal the hydrogen-bond interaction between ionic liquids and reagent, based on which the reaction mechanism was proposed.
关键词Co2 Epoxides Cyclic Carbonates Dbu Derived Bromide Ionic Liquid
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1002/cjoc.201700747
收录类别SCI
语种英语
关键词[WOS]PROPYLENE-OXIDE ; HETEROGENEOUS CATALYST ; CO2 CYCLOADDITION ; DIOXIDE ; EPOXIDES ; FIXATION ; CONVERSION ; ACTIVATION ; PROGRESS ; SYSTEM
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000427470500004
引用统计
被引频次:2[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/122111/24101
专题多相复杂系统国家重点实验室
作者单位1.China West Normal Univ, Coll Chem & Chem Engn, Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637002, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
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Li, Wei,Cheng, Weiguo,Yang, Xia,et al. Synthesis of Cyclic Carbonate Catalyzed by DBU Derived Basic Ionic Liquids[J]. CHINESE JOURNAL OF CHEMISTRY,2018,36(4):293-298.
APA Li, Wei.,Cheng, Weiguo.,Yang, Xia.,Su, Qian.,Dong, Lihui.,...&Zhang, Suojiang.(2018).Synthesis of Cyclic Carbonate Catalyzed by DBU Derived Basic Ionic Liquids.CHINESE JOURNAL OF CHEMISTRY,36(4),293-298.
MLA Li, Wei,et al."Synthesis of Cyclic Carbonate Catalyzed by DBU Derived Basic Ionic Liquids".CHINESE JOURNAL OF CHEMISTRY 36.4(2018):293-298.
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