Synthesis of propylene glycol ethers from propylene oxide catalyzed by environmentally friendly ionic liquids

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	Synthesis of propylene glycol ethers from propylene oxide catalyzed by environmentally friendly ionic liquids
	Zhao, Cong 1,2; Chen, Shengxin 2,3; Zhang, Ruirui 2; Li, Zihang 2; Liu, Ruixia 2; Ren, Baozeng 1; Zhang, Suojiang 1,2
刊名	CHINESE JOURNAL OF CATALYSIS
	2017-05-01
卷号	38 期号:5 页码:879-889
关键词	Ionic liquid Propylene glycol ether Etherification Propylene oxide Basic strength Reaction mechanism Environmental friendly
ISSN号	0253-9837
英文摘要	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.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]	Chemistry ; Engineering
关键词[WOS]	METHYL-ETHER ; SOLID BASE ; CO2 ; CYCLOADDITION ; MECHANISM ; METHANOL ; PERFORMANCE ; ALCOHOLS
收录类别	SCI
语种	英语
WOS记录号	WOS:000402346400013
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/22535]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.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
推荐引用方式 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.