Title of article
Inorganic-organic hybrid nanomaterial (Fe3O4@SiO2-AQ): A retrievable heterogeneous catalyst for the green synthesis of 4H-chromenes
Author/Authors
Bodaghifard ، Mohamad Ali Department of Chemistry - Faculty of Science, Institute of Nanosciences Nanotechnology - Arak University , Faraki ، Zahra Department of Chemistry - Faculty of Science - Arak University , Mozaffari ، Zahra Department of Chemistry - Faculty of Science - Arak University
From page
101
To page
110
Abstract
Preparation of 4aminiquinaldine grafted on silicacoated nanoFe3O4 particles (Fe3O4@SiO2AQ) as a novel retrievable heterogeneous nanocatalyst is described. This novel hybrid nanomaterial was applicated for the green synthesis of substituted 2amino4Hchromenes via the onepot condensation reaction of an aldehyde, malononitrile and αnaphthol/βnaphthol/phenol under solventfree condition. Ecofriendly method, high yield and purity of the desired products, short reaction time along with the ease of the workup procedure outlines the advantages of these new methodologies over the earlier ones. Surface and magnetic properties of the core/shell hybrid nanoparticles were characterized via transmission electron microscopy (TEM), scanning electron microscope (SEM), Xray powder diffraction (XRD), energydispersive Xray spectroscopy (EDS), thermogravimetric analysis (TGA/DTA), and Fouriertransform infrared spectroscopy (FTIR) techniques. This nanocatalyst can be reused at least six times without considerable loss of its performance.
Keywords
4H , chromenes , Heterogeneous , Hybrid nanomaterial , Green synthesis
Journal title
Iranian Journal of Catalysis
Record number
2502000
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