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

By : Rafat Saba, Mohd, Kashif Aziz, Ghulam Mustafa, Arpit Shrivastava, Shekhar Shrivastava

Page No: 153-166

Abstract
We have synthesized Schiff’s base of Fe3O4@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 (H2O2) to oxidize sulfides to corresponding sulfoxides at room temperature. It has been found that yield of sulfoxides depend on the amount of H2O2, 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 Fe3O4@CSSe and 0.5 mL H2O2.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.

Authors :
Rafat Saba
Department of chemistry, University of Allahabad, Prayagraj (U.P.)-India.

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

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

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

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

DOI: https://doi.org/10.32381/JPM.2021.38.1-2.12