A new method for the synthesis of 1-methylimidazolium
trifluoroacetate ([Hmi]Tfa), a protic ionic liquid (PIL), under
ultrasonic irradiation has been developed. In addition, the product [Hmi]Tfa
was successfully employed as solvent and catalyst in Biginelli reaction to
prepare 3,4-dihydropyrimidinones (DHPMs) in high yield under mild reaction conditions.
Cite this paper
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, Vol. 3 No. 4, 2013, pp. 14-17. doi: 10.4236/gsc.2013.34A003
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