Application of high-melting pyridinium salts as ionic liquid catalysts and media for fischer esterification |
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Authors: | Pralhad A Ganeshpure and Jagannath Das |
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Institution: | (1) Research Centre, Indian Petrochemicals Corporation Limited, Vadodara, 391 346, India |
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Abstract: | Pyridinium methanesulfonate (m.p. 185°C) and pyridinium p-toluenesulfonate (m.p. 121°C) were used as catalysts and media for the esterification of carboxylic acids with primary alcohols
to give the corresponding esters selectively in high yields. The high melting points of these pyridinium salts did not prevent
their application as ionic liquid medium for these reactions which were performed at 90°C. |
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Keywords: | Ionic liquids pyridinium methanesulfonate pyridinium p-toluenesulfonate esterification |
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