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Iron oxide modified with pyridyl‐triazole ligand for stabilization of gold nanoparticles: An efficient heterogeneous catalyst for A 3 coupling reaction in water
Author(s) -
Gholinejad Mohammad,
Zareh Fatemeh,
Najera Carmen
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.4454
Subject(s) - chemistry , catalysis , ligand (biochemistry) , coupling reaction , nanoparticle , magnetic nanoparticles , colloidal gold , heterogeneous catalysis , magnetic separation , coupling (piping) , iron oxide , inorganic chemistry , chemical engineering , combinatorial chemistry , organic chemistry , metallurgy , materials science , biochemistry , receptor , engineering
Fe 3 O 4 nanoparticles were modified with pyridyl‐triazole ligand and the new magnetic solid was applied for the stabilization of very small and uniform gold nanoparticles. The resulting magnetic material, Fe 3 O 4 @PT@Au, was characterized using various methods. These gold nanoparticles on a magnetic support were applied as an efficient heterogeneous catalyst for the three‐component reaction of amines, aldehydes and alkynes (A 3 coupling) in neat water with 0.01 mol% Au loading. Using magnetic separation, this catalyst could be recycled for seven consecutive runs with very small decrease in activity. Characterization of the reused catalyst did not show appreciable structural modification.