Investigation of Reaction Conditions in the Synthesis of Imidazolium, Pyridinium and Pyrrolidinium Based Ionic Liquids

Document Type : Research Paper

Abstract

Unique properties of ionic liquids such as low vapor pressure, high thermal stability, and their ability to dissolve polar compounds makes them potential alternatives for organic solvents lacking such characteristics. Studies show that substantial efforts are being made to synthesize these ionic liquids under milder reaction conditions. Quaternary imidazolium, pyridinum, and pyrrolidinium based salts are unfortunately prepared at high temperatures over long periods of time, making the syntheses economically inefficient. Parameters involved in the synthesis of each of these salts have been optimized in this work and the synthesis conditions have been compared. Results indicate that the synthesis of dialkyl imidazolium chlorides gives higher yields and requires shorter reaction times in comparison with the other two groups.
 

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References

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Journal of Petroleum Research
Volume 18, Issue 58 - Serial Number 58
November and December 2009
Pages 24-36

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