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Superparamagnetic CuFeO 2 Nanoparticles in Deep Eutectic Solvent: an Efficient and Recyclable Catalytic System for the Synthesis of Imidazo[1,2‐ a ]pyridines
Author(s) -
Lu Jun,
Li XiaoTang,
Ma ErQian,
Mo LiPing,
Zhang ZhanHui
Publication year - 2014
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201402415
Subject(s) - superparamagnetism , catalysis , nanoparticle , solvent , deep eutectic solvent , chemistry , citric acid , eutectic system , materials science , nuclear chemistry , chemical engineering , organic chemistry , nanotechnology , magnetization , alloy , physics , quantum mechanics , magnetic field , engineering
Superparamagnetic CuFeO 2 nanoparticles were prepared and characterized by XRD, SEM, TEM, FRIR spectroscopy, and vibrating sample magnetometry techniques. The catalytic activity of CuFeO 2 nanoparticles was investigated in the one‐pot, three‐component reaction of 2‐aminopyridines, aldehydes, and alkynes using citric acid–dimethylurea melt as a green solvent. An array of imidazo[1,2‐ a ]pyridines were obtained in good to excellent yields. The catalytic system can be successfully reused six times with keeping its catalytic performance.