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

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left">Cycle no.</td><td align="center">Yield, %</td><td align="center">Purity, %</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left">1</td><td align="center">96</td><td align="center">99</td></tr><tr><td align="left">2</td><td align="center">94</td><td align="center">99</td></tr><tr><td align="left">3</td><td align="center">96</td><td align="center">99</td></tr><tr><td align="left">4</td><td align="center">86</td><td align="center">99</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td>Reaction conditions are the same with Table <a href="../tab1/">1</a> based on p-chlorobenzaldehyde with malononitrile.<br/></td></tr></table>

Recycling of [Promim]CF<sub>3</sub>COO IV in the Knoevenagel condensation.

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tab4

Table 4

Table 4: An Efficient and Recyclable Ionic Liquid-Supported Proline Catalyzed Knoevenagel Condensation 