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Synthesis of Molybdenum Chelate-Bonded Fe3O4 Nanoparticles and Their Efficient Catalytic Activity in Epoxidation of Alkenes
Immobilization of Mo(VI) ions on magnetic nanoparticles has been performed using surface modification of Fe 3 O 4 with 2-hydroxy-5-(2-nitrophenyldiazenyl)benzaldehyde (HNPABA). The new nanomagnetic-supported organocatalyst (Fe 3 O 4 @SiO 2 −HNPABA−Mo(VI)) has been applied in epoxidation of olefins w...
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Published in: | Russian journal of general chemistry 2021-09, Vol.91 (9), p.1789-1793 |
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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: | Immobilization of Mo(VI) ions on magnetic nanoparticles has been performed using surface modification of Fe
3
O
4
with 2-hydroxy-5-(2-nitrophenyldiazenyl)benzaldehyde (HNPABA). The new nanomagnetic-supported organocatalyst (Fe
3
O
4
@SiO
2
−HNPABA−Mo(VI)) has been applied in epoxidation of olefins with
tert
-butyl hydroperoxide. The results indicate that Fe
3
O
4
@SiO
2
−HNPABA−Mo(VI) magnetic nanoparticles demonstrate excellent activity and high stability. The effect of several parameters such as a solvent, catalyst, oxidant content, and temperature has been studied. In addition, the catalyst could be repeatedly applied up to five times without loss of activity in epoxidation of alkenes. |
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ISSN: | 1070-3632 1608-3350 |
DOI: | 10.1134/S1070363221090267 |