Journal
TETRAHEDRON
Volume 68, Issue 20, Pages 3835-3842Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2012.03.048
Keywords
Carbon dioxide; Iron-containing ionic liquid; Cycloaddition; Heterogeneous catalyst; Cyclic carbonates
Categories
Funding
- National Natural Science Foundation of China [21172125]
- Ministry of Education of China [B06005]
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A polystyrene-supported Lewis acidic iron-containing ionic liquid was proved to be recyclable and efficient heterogeneous catalyst for converting CO2 into cyclic carbonate without utilization of any organic solvent or additive. Excellent yields and selectivity were obtained under mild reaction conditions. Notably, the catalyst could be readily recovered and reused over five times without appreciable loss of catalytic activity. A possible catalytic cycle was proposed. The present protocol has successfully been applied to reactions of aziridines/propargyl amines with CO2. This kind of the catalyst presented herein would have great potential in industrial application thanks to its featured advantages. (C) 2012 Elsevier Ltd. All rights reserved.
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