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Copper‐based Schiff Base Complex Immobilized on Core‐shell Fe 3 O 4 @SiO 2 as a magnetically recyclable and highly efficient nanocatalyst for green synthesis of 2‐amino‐4 H ‐chromene derivatives
Author(s) -
Ebrahimiasl Hakimeh,
Azarifar Davood
Publication year - 2020
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.5359
Subject(s) - salicylaldehyde , schiff base , chemistry , catalysis , imine , copper , nuclear chemistry , heterogeneous catalysis , magnetic nanoparticles , x ray photoelectron spectroscopy , nanoparticle , polymer chemistry , inorganic chemistry , chemical engineering , organic chemistry , engineering
Fe 3 O 4 ‐supported copper (II) Schiff‐Base complex has been synthesized through post‐modification with 1,3‐phenylenediamine followed by further post‐modification with salicylaldehyde and coordination with Cu(II) ion. The resulted Fe 3 O 4 @SiO 2 ‐imine/phenoxy‐Cu(II) magnetic nanoparticles (MNPs) were characterized by various techniques including SEM, TEM, XRD, XPS, EDX, VSM, FT‐IR, and ICP. The catalytic activity as a magnetically recyclable heterogeneous catalyst for one‐pot, three‐component synthesis of 2‐amino‐4 H ‐chromene derivatives was examined. The catalyst is efficient in the reaction and can be recovered by magnetic separation and recycled several times without significant loss in the catalytic activity.