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Synthesis of propylene glycol ethers from propylene oxide catalyzed by environmentally friendly ionic liquids
Zhao, Cong1,2; Chen, Shengxin2,3; Zhang, Ruirui2; Li, Zihang2; Liu, Ruixia2; Ren, Baozeng1; Zhang, Suojiang1,2
2017-05-01
Source PublicationCHINESE JOURNAL OF CATALYSIS
ISSN0253-9837
Volume38Issue:5Pages:879-889
Abstract

A series of acetate ionic liquids were synthesized using a typical two-step method. The ionic liquids were used as environmentally benign catalysts in the production of propylene glycol ethers from propylene oxide and alcohols under mild conditions. The basic strengths of the ionic liquids were evaluated by determination of their Hammett functions, obtained using ultraviolet-visible spectroscopy, and the relationship between their catalytic activities and basicities was established. The catalytic efficiencies of the ionic liquids were higher than that of the traditional basic catalyst NaOH. This can be attributed to the involvement of a novel reaction mechanism when these ionic liquids are used. A possible electrophilic-nucleophilic dual activation mechanism was proposed and confirmed using electrospray ionization quadrupole time-of-flight mass spectrometry. In addition, the effects of significant reaction parameters such as concentration of catalyst, molar ratio of alcohol to propylene oxide, reaction temperature, and steric hindrance of the alcohol were investigated in detail. (c) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

KeywordIonic Liquid Propylene Glycol Ether Etherification Propylene Oxide Basic Strength Reaction Mechanism Environmental Friendly
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/S1872-2067(17)62831-6
Indexed BySCI
Language英语
WOS KeywordMethyl-ether ; Solid Base ; Co2 ; Cycloaddition ; Mechanism ; Methanol ; Performance ; Alcohols
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
Funding OrganizationCAS ; National Natural Science Foundation of China Petroleum & Chemical Corporation Joint Fund(U1662129) ; National Natural Science Foundation of China(91434203) ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences(QYZDY-SSW-JSC011)
WOS IDWOS:000402346400013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22535
Collection多相复杂系统国家重点实验室
Affiliation1.Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Henan, Peoples R China
2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Henan Univ, Coll Chem & Chem Engn, Kaifeng 475004, Henan, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Cong,Chen, Shengxin,Zhang, Ruirui,et al. Synthesis of propylene glycol ethers from propylene oxide catalyzed by environmentally friendly ionic liquids[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(5):879-889.
APA Zhao, Cong.,Chen, Shengxin.,Zhang, Ruirui.,Li, Zihang.,Liu, Ruixia.,...&Zhang, Suojiang.(2017).Synthesis of propylene glycol ethers from propylene oxide catalyzed by environmentally friendly ionic liquids.CHINESE JOURNAL OF CATALYSIS,38(5),879-889.
MLA Zhao, Cong,et al."Synthesis of propylene glycol ethers from propylene oxide catalyzed by environmentally friendly ionic liquids".CHINESE JOURNAL OF CATALYSIS 38.5(2017):879-889.
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