Synthesis and Characterization of Magnetically Recyclable Natural Thomsonite Zeolite Supported on Fe3O4@SiO2 Nanoparticle Catalyst and its use for the Preparation of Biginelli Reaction under Solvent-free Conditions

Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

IICC20_124

تاریخ نمایه سازی: 2 تیر 1398

Abstract:

Thomsonite Zeolite (NaCa2[Al5Si5O20].6H2o) is a natural and heterogeneous catalyst that used broadly in the synthesis of specialty and fine chemicals [1]. In this study we used from heterogeneous catalyst (natural thomsonite zeolite) to linked superparamagnetic nanoparticle (NP), which providing quasi-homogeneous reaction conditions. After doing and complete reaction, the magnetically heterogeneous catalyst is easily separated by an external magnet and provide an easy work-up.Biginelli reactions for the synthesis of 3, 4-dihydropyrimidin-2-(1H)-ones derivatives have been shown many important biological properties such as antibacterial and anti-inflammatory, antifungal, antihypertensive effects, anticancer, anti HIV agent [2]. Magnetically recyclable natural thomsonite zeolite supported on Fe3O4@SiO2 core-shell nanoparticles was prepared for the first time. The natural nanocatalyst was characterized by various techniques such as FT-IR, TGA/DTA, SEM, SEM-EDS, XRD, VSM, and UV analysis. This magnetically recyclable catalyst was used for the rapid synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives from ethylacetoacetate, urea, and aromatic aldehydes under thermal solvent-free conditions.

Authors

Somaye Khammarnia

Department of Chemistry, University of Payame Noor, P.O. Box ۱۹۳۹۵-۴۶۹۷, Tehran , Iran

Asiyeh Biabangard

Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, P.O. Box ۹۸۱۳۵- ۶۷۴,Zahedan, Iran

Habib Biabangard

Department of Geology, Faculty of Sciences, University of Sistan and Baluchestan, PO Box ۹۸۱۳۵ -۶۷۴, Zahedan, Iran