Synthesis of Molybdenum Chelate-Bonded Fe.sub.3O.sub.4 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.sub.3O.sub.4 with 2-hydroxy-5-(2-nitrophenyldiazenyl)benzaldehyde (HNPABA). The new nanomagnetic-supported organocatalyst (Fe.sub.3O.sub.4@SiO.sub.2-HNPABA-Mo(VI)) has been applied in epoxidat...

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Bibliographic Details
Published inRussian journal of general chemistry Vol. 91; no. 9; p. 1789
Main Authors Menati, S, Mohseni, E, Gorjizadeh, M, Sayyahi, S
Format Journal Article
LanguageEnglish
Published Springer 01.09.2021
Subjects
Molybdenum
Nanoparticles
Olefins
Palladium catalysts
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Summary:Immobilization of Mo(VI) ions on magnetic nanoparticles has been performed using surface modification of Fe.sub.3O.sub.4 with 2-hydroxy-5-(2-nitrophenyldiazenyl)benzaldehyde (HNPABA). The new nanomagnetic-supported organocatalyst (Fe.sub.3O.sub.4@SiO.sub.2-HNPABA-Mo(VI)) has been applied in epoxidation of olefins with tert-butyl hydroperoxide. The results indicate that Fe.sub.3O.sub.4@SiO.sub.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.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363221090267