ZnBr2/DMF as simple and highly active Lewis acid-base catalysts for the cycloaddition of CO2 to propylene oxide

被引：59
|
作者：
Zhong, Shifa [2 ]
Liang, Lin [1 ,3 ]
Liu, Bo [2 ]
Sun, Jianmin [1 ,2 ]
机构：
[1] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150080, Peoples R China
[2] Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Harbin 150080, Peoples R China
[3] Harbin Inst Technol, Sch Life Sci & Technol, Harbin 150080, Peoples R China
来源：
JOURNAL OF CO2 UTILIZATION | 2014年 / 6卷
基金：
中国国家自然科学基金;
关键词：
CO2; ZnBr2; DMF; Acid base catalysts; Propylene carbonate; SUPERCRITICAL CARBON-DIOXIDE; ORGANIC CARBONATES; CYCLIC CARBONATES; COUPLING REACTIONS; STYRENE CARBONATE; CHEMICAL FIXATION; IONIC LIQUIDS; EPOXIDES; EFFICIENT; COMPLEX;
D O I：
10.1016/j.jcou.2014.02.004
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
It is a great challenge for developing effective and simple catalysts for the cycloaddition of CO2 to epoxides to form cyclic carbonates. In this report, the simple ZnBr2/DMF catalysts were found highly effective to this transformation and a high TOF of 1170 h(-1) and 100% selectivity to propylene carbonate were obtained at 150 degrees C and 3 MPa of CO2. Specially, the catalysts possessed merits of cheapness, effectivity and facile availability, which were very attractive from the viewpoint of industrial applications. Moreover, the effects of various reaction factors, including different Lewis acids and bases used, temperature, CO2 pressure, reaction time and the amount of DMF, were also discussed in detail. Besides, a possible catalytic mechanism for the cycloaddition of CO2 to propylene oxide was proposed. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：75 / 79
页数：5
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