期刊
CHEMCATCHEM
卷 4, 期 6, 页码 824-830出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201100461
关键词
ferrite complex oxide; magnetic properties; nanoparticles; N-arylation; recoverable
资金
- Chinese Academy of Sciences
- National Natural Science Foundation of China [21073210, 21133011]
A series of magnetic nanoparticles of ferrite complex oxides were simply prepared by using a citric acid complex method and characterized by using XRD, FT-IR spectroscopy, TEM, the BET nitrogen adsorption/desorption technique, and a vibrating sample magnetometer. The magnetic nanoparticles were used for the N-arylation of nitrogen nucleophiles to form new C N bonds. CuFe2O4 nanoparticles calcined at 850 degrees C exhibited the best activity with moderate to excellent yields under ligand-free conditions. Notably, CuFe2O4 is completely recoverable with an external magnet and can be reused eight times without significant loss of catalytic activity.
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