CAS OpenIR  > 多相复杂系统国家重点实验室
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

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.

KeywordCo2 Epoxides Cyclic Carbonates Dbu Derived Bromide Ionic Liquid
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS KeywordPropylene-oxide ; Heterogeneous Catalyst ; Co2 Cycloaddition ; Dioxide ; Epoxides ; Fixation ; Conversion ; Activation ; Progress ; System
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000427470500004
Citation statistics
Document Type期刊论文
Affiliation1.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
Recommended Citation
GB/T 7714
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.
Files in This Item:
File Name/Size DocType Version Access License
Synthesis of Cyclic (1385KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Wei]'s Articles
[Cheng, Weiguo]'s Articles
[Yang, Xia]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Wei]'s Articles
[Cheng, Weiguo]'s Articles
[Yang, Xia]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Wei]'s Articles
[Cheng, Weiguo]'s Articles
[Yang, Xia]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.