Green protocol for synthesis of MgFe2O4 nanoparticles and study of their activity as an efficient catalyst for the synthesis of chromene and pyran derivatives under ultrasound irradiation
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In this study, the MgFe2O4 nanoparticles were synthesized via a green and simple approach. Then an effective procedure to synthesize 2-amino-7-hydroxy-4H-chromene and tetrahydrobenzo[b]pyran derivatives was established through the chemical reaction between different aldehydes, malononitrile and resorcinol (or dimedone) in the presence of MgFe2O4 nanoparticles as a beneficial catalyst in ethanol as solvent under ultrasound irradiation. Moreover, the synthesized MgFe2O4 nanoparticles were easily recovered by an external magnet and reused for four times without significant loss of their catalytic activity. Simple, fast, effective and eco-friendly as well as quick purification method along with high product yields are some of the advantages of the present chemical reaction.
KeywordsMgFe2O4 Chromene Pyran Ultrasound Green Nanoparticles
The authors thank, Islamic Azad University, Science and Research Branch for the support and guidance.
Compliance with ethical statement
Conflict of interest
We have no conflicts of interest to declare.
- 4.A. Ramazani, S. Taghavi Fardood, Z. Hosseinzadeh, F. Sadri, S.W. Joo, Green synthesis of magnetic copper ferrite nanoparticles using tragacanth gum as a biotemplate and their catalytic activity for the oxidation of alcohols, Iran. J. Catal. 7, 181–185 (2017)Google Scholar
- 23.J.L. Luche, Synthetic Organic Sonochemistry (Plenum, New York, 1999)Google Scholar
- 31.A. Ramazani, M. Rouhani, S.W. Joo, Org. Chem. Res. 1, 12–17 (2015)Google Scholar
- 37.S. Asgarzadehahmadi, M. Davoody, R. Afshar Ghotli, A.A. Adul Rahman, R. Parthasarathy, Effect of ultrasonic irradiations on gas–liquid mass transfer coefficient (kLa); experiments and modelling. Measurment 79, 119–129 (2016)Google Scholar
- 39.R. Baharfar, S. Asgari, N. Shariati, Green synthesis of 2-amino-3-cyano-4H-chromenes in water using nano silica-bonded 5-N-propyl-octahydro-pyrimido[1,2, A] azepinium chloride as an effective and reusable nanocatalyst. J. Chil. Chem. Soc. 2, 2900–2904 (2015)Google Scholar