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CoFe 2 O 4 @SiO 2 ‐CPTES‐Guanidine‐Cu(II): A novel and reusable nanocatalyst for the synthesis of 2,3‐dihydroquinazolin‐4(1 H )‐ones and polyhydroquinolines and oxidation of sulfides
Author(s) -
Heidari Leili,
Shiri Lotfi
Publication year - 2019
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.4636
Subject(s) - catalysis , thermogravimetric analysis , chemistry , inductively coupled plasma , guanidine , fourier transform infrared spectroscopy , spectroscopy , inductively coupled plasma atomic emission spectroscopy , scanning electron microscope , nanoparticle , magnetic nanoparticles , reusability , nuclear chemistry , infrared spectroscopy , analytical chemistry (journal) , chemical engineering , nanotechnology , organic chemistry , materials science , plasma , composite material , programming language , physics , software , quantum mechanics , computer science , engineering
CoFe 2 O 4 @SiO 2 ‐CPTES‐Guanidine‐Cu(II) magnetic nanoparticles were synthesized and used as a new, inexpensive and efficient heterogeneous catalyst for the synthesis of polyhydroquinolines and 2,3‐dihydroquinazoline‐4(1 H )‐ones and for the oxidation of sulfides. The structure of this nanocatalyst was characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, vibrating sample magnetometry, thermogravimetric analysis, X‐ray diffraction and inductively coupled plasma optical emission spectrometry. Simple preparation, high catalytic activity, simple operation, high yields, use of green solvents, easy magnetic separation and reusability of the catalyst are some of the advantages of this protocol.