Issue 6, 2012
From the journal:

Catalysis Science & Technology

Highly selective formation of 2,6-dimethylnaphthalene in HCl-modified triethylamine–aluminum chloride ionic liquid†

Linfei Xiao,a   Dan Liu,a   Min Xua  and  Wei Wu*a  

* Corresponding authors

a Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education and Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province, School of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080, P. R. China
E-mail: wuwei@hlju.edu.cn
Fax: +86-451-8660 9227
Tel: +86-451-8660 9227

Abstract

HCl-modified triethylamine aluminum chloride ionic liquid (Et3NHCl–2.0AlCl3–HCl) was prepared and 27Al NMR measurements were carried out. The acidity of the ionic liquids (ILs) was characterized by FT-IR with using pyridine as a probe molecule and the Hammett acidity function was determined by UV-vis spectroscopy. The catalytic performance of the ionic liquids for the synthesis of 2,6-dimethylnaphthalene (2,6-DMN) with high selectivity by the transalkylation of 2-methylnaphthalene (2-MN) with 1,2,4,5-tetramethylbenzene (TeMB) was investigated. Under the optimal reaction conditions, 15.6% conversion of 2-MN and 100% selectivity of 2,6-DMN in the dimethylnaphthalenes were obtained.

Graphical abstract: Highly selective formation of 2,6-dimethylnaphthalene in HCl-modified triethylamine–aluminum chloride ionic liquid

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Article information

DOI
https://doi.org/10.1039/C2CY00239F
Article type
Paper
Submitted
30 Jun 2011
Accepted
02 Mar 2012
First published
23 Mar 2012

Catal. Sci. Technol., 2012,2, 1259-1263

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Highly selective formation of 2,6-dimethylnaphthalene in HCl-modified triethylamine–aluminum chloride ionic liquid

L. Xiao, D. Liu, M. Xu and W. Wu, Catal. Sci. Technol., 2012, 2, 1259 DOI: 10.1039/C2CY00239F

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