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Novel CuFe 2 O 4 @SiO 2 ‐OP 2 O 5 H magnetic nanoparticles: Preparation, characterization and first catalytic application to the synthesis of 1,8‐dioxo‐octahydroxanthenes
Author(s) -
Tajfirooz Farzaneh,
Davoodnia Abolghasem,
Pordel Mehdi,
Ebrahimi Mahmoud,
Khojastehnezhad Amir
Publication year - 2018
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.3930
Subject(s) - catalysis , chemistry , fourier transform infrared spectroscopy , nanoparticle , scanning electron microscope , analytical chemistry (journal) , inductively coupled plasma , decantation , magnetic nanoparticles , infrared spectroscopy , spectroscopy , pentoxide , nuclear chemistry , inorganic chemistry , chemical engineering , nanotechnology , vanadium , materials science , plasma , organic chemistry , physics , quantum mechanics , engineering , composite material
New functionalized magnetic core–shell nanoparticles, CuFe 2 O 4 @SiO 2 ‐OP 2 O 5 H, were prepared by grafting of phosphorus pentoxide on CuFe 2 O 4 @SiO 2 nanoparticles and characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, energy‐dispersive X‐ray analysis, inductively coupled plasma optical emission spectrometry and vibrating sample magnetometry. The catalytic activity of CuFe 2 O 4 @SiO 2 ‐OP 2 O 5 H as a novel catalyst was evaluated in the synthesis of 1,8‐dioxo‐octahydroxanthenes under solvent‐free conditions. The results showed that the catalyst has high activity and the desired products are obtained in high yields within short reaction times. The catalyst is readily recovered using magnetic decantation and can be used at least four times without noticeable deterioration in catalytic activity.