Synthesis of imidazolium and pyridinium-based ionic liquids and application of 1-alkyl-3-methylimidazolium salts as pre-catalysts for the benzoin condensation using solvent-free and microwave activation |
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| Authors: | Audrey Aupoix Giang Vo-Thanh |
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| Institution: | a Laboratoire de Catalyse Moléculaire, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182, Université Paris-Sud 11, 91405 Orsay Cedex, France
b UMR 8086, Instut Lavoisier-Franklin, Université de Versailles, 45, avenue des Etats-Unis, 78035 Versailles Cedex, France |
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| Abstract: | An efficient one-pot procedure for the synthesis of ionic liquids based on nitrogen-containing heterocycles, imidazolium or pyridinium under ‘green chemistry’ conditions has been described. Imidazolium salts and DBU have been found to catalyze efficiently the benzoin condensation giving good yields within very short reaction time using solvent-free microwave activation conditions. |
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