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Journal of Chemistry
Volume 2013, Article ID 834656, 6 pages
Research Article

1-Methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium Chloride as a New and Green Ionic Liquid Catalyst for One-Pot Synthesis of Dihydropyrimidinones under Solvent-Free Condition

Department of Chemistry, Payame Noor University, P.O. Box 19395-4697, Tehran, Iran

Received 8 June 2012; Revised 11 September 2012; Accepted 15 September 2012

Academic Editor: Francisco José Hernández Fernández

Copyright © 2013 Sami Sajjadifar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An efficient and simple method for the preparation of 1-methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium chloride as an acidic ionic liquid is described. One-pot multicomponent condensation of 1,3-dicarbonyl compounds, urea/thiourea and aldehydes at 80C affords the corresponding compounds in high yields and in short reaction times by using (MSEI)Cl.