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Catalysis in Green Chemistry and Engineering

ISSN Print: 2572-9896
ISSN Online: 2572-990X

Catalysis in Green Chemistry and Engineering

DOI: 10.1615/.2017020760
pages 1-11

PEG SUPPORTED PROLINE AS A LIQUID-LIQUID BIPHASIC CATALYST IN KNOEVENAGEL CONDENSATION REACTIONS

Nisha D. Kadam
Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai-400 019, India
Radha V. Jayaram
Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai 400019, India

ABSTRACT

Proline, generally used as a base catalyst for organic reactions, was modified by supporting on PEG (polyethylene glycol) and used as an acid catalyst. The supported material was applied as a nonaqueous biphasic catalytic system in the Knoevenagel condensation for the synthesis of α, β -unsaturated compounds under mild reaction conditions and the proposed mechanism was supported by kinetic studies. After completion of the reaction, the catalyst could be separated and reused by selective product extraction. The catalyst was characterized by techniques such as FT-IR, NMR, CHN, and TGA-DSC analysis.


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