Research Article

An Efficient and Recyclable Ionic Liquid-Supported Proline Catalyzed Knoevenagel Condensation

Table 3

Effect of the solvent on Knoevenagel condensation.

EntrySolventYield, %Purity, %

1CH3CN9699
2CHCl37299
3CH3OH9099
4H2O8699
5CH2ClCH2Cl5799

Reaction conditions are the same with Table 1 based on p-chlorobenzaldehyde with malononitrile.