Tetrahedron Letters

Hydroxyl-functionalized ionic liquid: a novel efficient catalyst for chemical fixation of CO 2 to cyclic carbonate

J Sun, S Zhang, W Cheng, J Ren

Index: Sun, Jian; Zhang, Suojiang; Cheng, Weiguo; Ren, Junyi Tetrahedron Letters, 2008 , vol. 49, # 22 p. 3588 - 3591

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Citation Number: 263

Abstract

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 ...