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Paper | Regular issue | Vol 91, No. 7, 2015, pp.1385-1397
Published online, 8th June, 2015
DOI: 10.3987/COM-15-13238
A Simple, Efficient and Green Procedure for Knoevenagel Condensation in Hydroxy-Functionalized Ionic Liquids

Yuting Liu, Rong Li, and Yanjun Xing*

*College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Renmin Road 2999#, Shanghai 201620, China


An efficient and simple Knoevenagel condensation catalyzed by hydroxy-functionalized ionic liquids proceeded smoothly in high yields under ambient and solvent-free conditions. The condensation procedures of aryl aldehydes and 2,4-thiazolidinedione was involved in hydrogen bonding interactions between the hydroxy groups of the ILs and the carbonyl group of the aldehyde. The ionic liquids can be reused for five times without significant loss in activity.