Journal
TETRAHEDRON LETTERS
Volume 49, Issue 22, Pages 3588-3591Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.04.022
Keywords
ionic liquid; carbon dioxide; chemical fixation; cyclic carbonate
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A series of hydroxyl-functionalized ionic liquids (HFILs) were synthesized and characterized. They showed efficient reactivity and reusability toward the coupling of epoxide and CO2 without any additional co-catalyst and organic solvent. Highest activity and selectivity were achieved in the presence of 1-(2-hydroxyl-ethyl)-3-methylimidazolium bromide (HEMIMB) in comparison with other similar catalysts investigated. The relationship between the higher catalytic reactivity and OH-functional group was proposed. (C) 2008 Elsevier Ltd. All rights reserved.
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