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ARTICLE

Schiff’s base of Fe₃O₄ @chitosan with 4,4'- diselenobisbenzaldehyde: Preparation, characterization and its catalytic activity for oxidation of sulphides

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Department of chemistry, University of Allahabad, Prayagraj (U.P.)-India

* Corresponding Authors: e-mail: ,

Journal of Polymer Materials 2021, 38(1-2), 153-166. https://doi.org/10.32381/JPM.2021.38.1-2.12

Abstract

We have synthesized Schiff’s base of Fe₃ O₄ @chitosan with 4,4'-diselenobisbenzaldehyde (Fe₃O₄ @CSSe) composite and used it as acatalyst for the oxidation of sulfides, having some advantageous properties such as eco-friendly, cost-effective and highly efficient magnetic biocatalyst of selenium. The synthesized schiff’s base was characterized by different physical characterization techniques such as Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Vibrating sample magnetometer (VSM)and Dynamic light scattering (DLS). Further, we used the resulting schiff’s base as a catalyst in the presence of a green oxidant (H₂ O₂ ) to oxidize sulfides to corresponding sulfoxides at room temperature. It has been found that yield of sulfoxides depend on the amount of H₂ O₂ , loading catalyst and various solvents condition. Besides, more efficiently oxidation of dibutyl sulfide observed in the solvent-free condition with the yield of 94 per cent in the presence of 20mg Fe₃ O₄ @CSSe and 0.5 mL H₂ O₂ .Thus, the magnetic schiff’s base catalyst applied to oxidation of a broad range of sulfides. This may help enrich and develop future research on organic synthesis.

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