Abstract
The Knoevenagel condensation of aromatic aldehydes with malononitrile and ethyl cyanoacetate using amino-functionalized ionic liquid, 1-aminoethyl-3-methylimidazolium hexafluorophosphate as catalyst was successfully performed in aqueous media. The catalyst can be recycled and reused at least six times without apparently loss of activity.
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Cai, Y., Peng, Y. & Song, G. Amino-functionalized Ionic Liquid as an Efficient and Recyclable Catalyst for Knoevenagel Reactions in Water. Catal Lett 109, 61–64 (2006). https://doi.org/10.1007/s10562-006-0057-3
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DOI: https://doi.org/10.1007/s10562-006-0057-3