期刊
CHEMICAL PHYSICS LETTERS
卷 512, 期 4-6, 页码 273-277出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2011.07.035
关键词
-
资金
- Department of Energy [DE-FG36-06GO86072]
- NSF EPSCoR [EPS-1003970]
The synthesis of cyclic carbonates from CO2 and epoxides catalyzed by alkali metal halides (MX) in combination with a Lewis base (LB) is reported here. The unique synergistic effect between MX and LB has been observed at an optimum mole ratio of 1:1. High turnover frequency (TOF, h(-1)) indicates that an increase in the reaction efficiency of up to 40 times is obtained by comparison with the reaction carried out using only MX. The activity of MX primarily falls in the order of alkali metal ion's Lewis acidity. The optimum conditions for this solventless reaction were 130 degrees C and 2 MPa of CO2 pressure. (C) 2011 Elsevier B.V. All rights reserved.
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