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Preparation and characterization of Fe3O4@Cu-β-CD as a hybrid magnetic catalyst for the synthesis of dihydropyrano[2,3-c]pyrazoles in H2O
Fe 3 O 4 @Cu- β -CD is a hybrid composite with high catalytic activity. Easy separation with an external magnet and recyclability are the advantages of this catalyst. The magnetic composite was characterized by TEM, FE-SEM, XRD, EDS, VSM and FT-IR techniques. The result of the TEM analysis shows tha...
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Published in: | Research on chemical intermediates 2019-05, Vol.45 (5), p.2549-2563 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Fe
3
O
4
@Cu-
β
-CD is a hybrid composite with high catalytic activity. Easy separation with an external magnet and recyclability are the advantages of this catalyst. The magnetic composite was characterized by TEM, FE-SEM, XRD, EDS, VSM and FT-IR techniques. The result of the TEM analysis shows that the average size of the Fe
3
O
4
@Cu-
β
-CD composite is less than 80 nm. The catalyst was applied for the synthesis of dihydropyrano[2,3-c]pyrazole derivatives in water. Various dihydropyrano[2,3-c]pyrazole derivatives were prepared in high to excellent yields with short reaction times and high purity in aqueous medium.
Graphical abstract |
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ISSN: | 0922-6168 1568-5675 |
DOI: | 10.1007/s11164-019-03751-1 |