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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 Fe3O4 with 2-hydroxy-5-(2-nitrophenyldiazenyl)benzaldehyde (HNPABA). The new nanomagnetic-supported organocatalyst (Fe3O4@SiO2−HNPABA−Mo(VI)) has been applied in epoxidation of olefins with tert-butyl hydroperoxide. The results indicate that Fe3O4@SiO2−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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We are sincerely grateful to the Khorramabad Branch, Islamic Azad University for support of this work.

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Correspondence to S. Menati or S. Sayyahi.

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Menati, S., Mohseni, E., Gorjizadeh, M. et al. Synthesis of Molybdenum Chelate-Bonded Fe3O4 Nanoparticles and Their Efficient Catalytic Activity in Epoxidation of Alkenes. Russ J Gen Chem 91, 1789–1793 (2021).

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  • alkenes
  • epoxides
  • magnetic nanocatalyst
  • immobilization
  • molybdenyl acetylacetonate