Background: Here we report a new selenium-based heterogeneous catalyst, which was prepared from the immobilization of diphenyl diselenide on amine-functionalized Santa Barbara Amorphous-15 (SBA-15). The catalyst characterization study has been confirmed by different analysis methods including Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction patterns (XRD), field-emission scanning electron microscopy (FE-SEM), and Brunauer-Emmett-Teller (BET) surface area analysis.
Results: The newly designed catalyst was successfully applied in the green dehydration reaction of oximes to corresponding nitriles in the presence of hydrogen peroxide/air. To demonstrate the role of the catalyst in this study, the model reaction was also carried out in the absence of the catalyst and a trace yield of the relevant product was achieved.
Conclusion: In this way, a series of nitrile derivatives were obtained with 72-96% yields, also, the catalyst could be separated easily and recycled for four consecutive runs with no obvious drop in catalytic activity.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9682781 | PMC |
| http://dx.doi.org/10.1186/s13065-022-00899-7 | DOI Listing |
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Article Synopsis
- * It tests the reactivity of the catalyst in both homogeneous and immobilized forms on different metal oxide surfaces, discovering that different surfaces led to varying levels of surface collapse during anchoring.
- * Notably, anchoring on ZnO significantly increased the catalytic rate by six times compared to the homogeneous form, indicating that close contact with the metal oxide improved activity and reduced deactivation.
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