Nemat Shabani, M. R. P. Heravi, M. Babazadeh
Mar 22, 2021
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Journal
Polycyclic Aromatic Compounds
Abstract
Abstract 2-Aminoisoindoline-1,3-dione functionalized by Fe3O4@chloro-silane core-shell nanoparticles, then a green and convenient approach for the synthesis of a series of 4H-pyrans by the reaction of aryl aldehydes, malononitrile and methyl acetoacetate in ethanol/60 °C under by using magnetic nanoparticles (MNPs) of Fe3O4@SiO2-NH-isoindoline-1,3-dione is described. The characterization was performed by using a variety of conventional analytical instruments such as Fourier transform infrared spectra, field emission scanning electron microscopy, transmission electron microscopy, vibrating sample magnetometer, thermal analysis. This method provides several advantages such as environmental friendliness, shorter time, excellent yields, easy separation of MNPs with using of external magnet and simple work-up procedure.