Fatemeh Hakimi - Department of Chemistry, Payame Noor University (PNU), P.O. Box, ۱۹۳۹۵-۳۶۹۷, Tehran, Iran
Abolfazl Sharifi-Zarchi - Department of Chemistry, Payame Noor University (PNU), P.O. Box, ۱۹۳۹۵-۳۶۹۷, Tehran, Iran
Elham Golrasan - Department of Chemistry, Payame Noor University (PNU), P.O. Box, ۱۹۳۹۵-۳۶۹۷, Tehran, Iran

In the present study, an efficient and recyclable heterogeneous phase-transfer catalyst was prepared through the functionalization of magnetic nanoparticles with ethylenediamine and polyethylene glycol. After being characterized by various physico-chemical techniques, the bifunctional magnetic nanocomposite was used as a heterogeneous phase-transfer catalyst in the Knoevenagel condensation of aryl aldehydes with active methylene compounds under mild and green conditions. This procedure has several advantages such as high yield of products, short time of reaction, easy workup, mild reaction conditions, low amount of catalyst, and catalyst recoverability.

Knoevenagel Condensation Reusable Catalyst Phase, Transfer Catalyst Bifunctional Nanocomposite Aqueous Media