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Fe 3 O 4 ‐supported Schiff‐base copper (II) complex: A valuable heterogeneous nanocatalyst for one‐pot synthesis of new pyrano[2,3‐ b ]pyridine‐3‐carboxamide derivatives
Author(s) -
MahmoudiGomYek Samaneh,
Azarifar Davood,
Ghaemi Masoumeh,
Keypour Hassan,
Mahmoudabadi Masoumeh
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.4918
Subject(s) - chemistry , schiff base , pyridine , catalysis , copper , transmission electron microscopy , nanoparticle , spectroscopy , scanning electron microscope , infrared spectroscopy , inductively coupled plasma , nuclear chemistry , crystallography , nanotechnology , organic chemistry , materials science , physics , plasma , quantum mechanics , composite material
A novel Cu (II) Schiff‐base complex immobilized on core‐shell magnetic Fe 3 O 4 nanoparticles (Fe 3 O 4 @SPNC) was successfully designed and synthesized. The structural features of these nanoparticles were studied and confirmed by using various techniques including FT‐IR spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy‐dispersive X‐ray spectroscopy (EDS), vibrating sample magnetometer (VSM), X‐Ray diffraction (XRD), wavelength dispersive X‐ray spectroscopy (WDX), and inductively coupled plasma (ICP). These newly synthesized nanoparticles have been used as efficient heterogeneous catalytic system for one‐pot multicomponent synthesis of new pyrano[2,3‐ b ]pyridine‐3‐carboxamide derivatives. Notably, the catalyst could be easily separated from the reaction mixture by using an external magnet and reused for several successive reaction runs with no significant loss of activity or copper leaching. The present protocol benefits from a hitherto unreported MNPs‐immobilized Cu (II) Schiff‐base complex as an efficient nanocatalyst for the synthesis of newly reported derivatives of pyrano[2,3‐ b ]pyridine‐3‐carboxamide from one‐pot multicomponent reactions.