S. N. Dighe, K. S. Jain and K. V. Srinivasan, “A Novel Synthesis of 1-aryl Tetrazoles Promoted by Employing the Synergy of the Combined Use of DMSO and an Ionic Liquid as the Solvent System at Ambient Temperature,” Tetrahedron Letters, Vol. 50, 2009, pp. 6139-6142. doi:10.1016/j.tetlet.2009.08.063

has been cited by the following article:

• TITLE: The Synergy of Combined Use of DMSO and Bronsted Acid (Ionic Liquid) as a Catalyst Part I: Efficient Niementowski Synthesis of Modified Quinazolinones

  AUTHORS: Muthu K. Kathiravan, Rajeshwar R. Jalnapurkar, Trupti S. Chitre, Riyaj S. Tamboli, Kumar V. Srinivasan

  KEYWORDS: Ionic Liquids, DMSO, Niementowski

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.1 No.1, February 25, 2011

  ABSTRACT: A new rapid and versatile approach using Ionic liquid/DMSO as a chemical reagent for the synthesis of fused heterocyclic compounds in a highly efficient way is described. This method offers the advantages of proceeding in neutral conditions, giving high to excellent isolated yields (83–92%) for Niementowski synthesis with easy workup procedure. The inherent Bronsted acidity of ionic liquid and high polarity of both IL and DMSO resulted in a significant enhancement in the reaction rate.