Iron oxide encapsulated by copper-apatite: an efficient magnetic nanocatalyst for N -arylation of imidazole with boronic acid

-Arylation of imidazole was carried out with various arylboronic acids on iron oxide encapsulated by copper-apatite (Fe O @Cu-apatite), producing excellent yields. Firstly, the iron nanoparticles were prepared using a solvothermal method, and then they were encapsulated by copper-apatite to obtain m...

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Bibliographic Details
Published in:RSC advances 2019-11, Vol.9 (62), p.36471-36478
Main Authors: Amadine, Othmane, Essamlali, Younes, Amedlous, Abdallah, Zahouily, Mohamed
Format: Article
Language:English
Subjects:
Apatite
Catalytic activity
Chemical analysis
Chemistry
Copper
Encapsulation
Imidazole
Iron oxides
Nanoparticles
Organic chemistry
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Summary:-Arylation of imidazole was carried out with various arylboronic acids on iron oxide encapsulated by copper-apatite (Fe O @Cu-apatite), producing excellent yields. Firstly, the iron nanoparticles were prepared using a solvothermal method, and then they were encapsulated by copper-apatite to obtain magnetic Fe O @Cu-apatite nanocatalysts. Several physico-chemical analysis techniques were used to characterize the prepared nanostructured Fe O @Cu-apatite catalyst. The prepared Fe O @Cu-apatite was used as a nanocatalyst for -arylation of imidazole with a series of arylboronic acids with different substituents to reaffirm the effectiveness of this magnetic nanocatalyst. The Fe O @Cu-apatite nanocatalyst can also be easily separated from the reaction mixture using an external magnet. More importantly, the as-prepared Fe O @Cu-apatite exhibited good reusability and stability properties in successive cycles. However, there was a notable loss of its catalytic activity after multiple cycles.
ISSN:2046-2069
2046-2069
DOI:10.1039/c9ra06991g