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E-Journal of Chemistry
Volume 9 (2012), Issue 4, Pages 2074-2078

Ionic Liquid-Mediated, Rapid N-Alkylation of Heterocyclic Compounds with Trialkyl Phosphites in the Presence of Dialkyl Acetylenedicarboxylates

1Department of Chemistry, Islamic Azad University, Zahedan Branch, P.O. Box 98135-978, Zahedan, Iran
2Department of Chemistry, Islamic Azad University, Yazd Branch, P.O. Box 89195-155, Yazd, Iran
3Department of Chemistry, Rafsanjan Vali-e-Asr University, Rafsanjan, P.O. Box 77176, Iran

Received 31 July 2011; Accepted 4 October 2011

Copyright © 2012 Hindawi Publishing Corporation. 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.


Ionic liquids such as 1,3-dialkylimidazolium bromides and make excellent solvents for N-alkylation of heterocyclic compounds such as saccharin and rhodanine with trialkyl phosphites in the presence of dialkyl acetylenedicarboxylates.