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Preparation and characterization of Fe 3 O 4 @SiO 2 /APTPOSS core–shell composite nanomagnetics as a novel family of reusable catalysts and their application in the one‐pot synthesis of 1,3‐thiazolidin‐4‐one derivatives
Author(s) -
SafaeiGhomi Javad,
Nazemzadeh Seyed Hadi,
ShahbaziAlavi Hossein
Publication year - 2016
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3520
Subject(s) - silsesquioxane , thermogravimetric analysis , chemistry , catalysis , nanoparticle , composite number , hybrid material , magnetic nanoparticles , fourier transform infrared spectroscopy , scanning electron microscope , dynamic light scattering , chemical engineering , spectroscopy , polymer chemistry , nanotechnology , organic chemistry , materials science , composite material , polymer , physics , quantum mechanics , engineering
Octakis[3‐(3‐aminopropyltriethoxysilane)propyl]octasilsesquioxane (APTPOSS) as a polyhedral oligomeric silsesquioxane derivative was prepared and used as a pioneer reagent to obtain a novel core–shell composite using magnetic iron oxide nanoparticles as the core and the inorganic–organic hybrid polyhedral oligomeric silsesquioxane as the shell. Fe 3 O 4 @SiO 2 /APTPOSS were confirmed using Fourier transform infrared spectroscopy , scanning electron microscopy , energy dispersive spectroscopy, dynamic light scattering, thermogravimetric analysis, X‐ray diffraction and vibrating sample magnetometry. The inorganic–organic hybrid polyhedral oligomeric silsesquioxane magnetic nanoparticles were used as an efficient new heterogeneous catalyst for the one‐pot three‐component synthesis of 1,3‐thiazolidin‐4‐ones under solvent‐free conditions. Moreover, these nanoparticles could be easily separated using an external magnet and then reused several times without significant loss of catalytic activity . Copyright © 2016 John Wiley & Sons, Ltd.