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Vol. 26 No. 18 (2014): Vol 26 Issue 18

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Activity of Imidazolium-Based Ionic Liquids as Catalysts for Friedel-Crafts Acylation of Aromatic Compounds

https://doi.org/10.14233/ajchem.2014.16354
Mingjian Cai
Department of Chemistry, Tangshan Normal University, Tangshan, Hebei 063000, P.R. China
Xiuge Wang
Department of Chemistry, Tangshan Normal University, Tangshan, Hebei 063000, P.R. China

Corresponding Author(s) : Mingjian Cai

cmj_1237@aliyun.com

Asian Journal of Chemistry, Vol. 26 No. 18 (2014): Vol 26 Issue 18

Abstract

Friedel-Crafts acylation of three aromatic compounds with acetyl chloride catalyzed by two kinds of ionic liquids was investigated. The imidazolium-based ionic liquids showed both high activity and high selectivity for this reaction. In particular, the catalytic effect of imidazolium-based ionic liquids was dramatically enhanced for ionic liquids containing the BF4- and Br- anions. The effects of various types of anion, ionic liquid dosage, reaction temperature and time were explored using [Bmim]BF4 or [Bmim]Br as catalyst. Results show that ionic liquids can be used as both catalyst and solvent.

Keywords

Imidazolium-based ionic liquids Acylation Friedel-crafts Aluminium chloride
Cai, M., & Wang, X. (2014). Activity of Imidazolium-Based Ionic Liquids as Catalysts for Friedel-Crafts Acylation of Aromatic Compounds. Asian Journal of Chemistry, 26(18), 5981–5984. https://doi.org/10.14233/ajchem.2014.16354
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