Magnetically recyclable Schiff-based palladium nanocatalyst [Fe₃O₄@SiNSB-Pd] and its catalytic applications in Heck reaction
Magnetically recyclable Schiff-based palladium nanocatalyst [Fe₃O₄@SiNSB-Pd] and its catalytic applicatiA magnetically separable palladium nanocatalyst has been synthesized through the immobilization of palladium onto 3-aminopropylphenanthroline Schiff based functionalized silica coated superparamag...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
King Saud University
2022
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| Subjects: | |
| Online Access: | https://eprints.ums.edu.my/id/eprint/33240/2/Magnetically%20recyclable%20Schiff-based%20palladium%20nanocatalyst%20%5BFe%E2%82%83O%E2%82%84%40SiNSB-Pd%5D%20and%20its%20catalytic%20applications%20in%20Heck%20reaction1.pdf https://eprints.ums.edu.my/id/eprint/33240/3/Magnetically%20recyclable%20Schiff-based%20palladium%20nanocatalyst%20%5BFe%E2%82%83O%E2%82%84%40SiNSB-Pd%5D%20and%20its%20catalytic%20applications%20in%20Heck%20reaction3.pdf https://eprints.ums.edu.my/id/eprint/33240/ https://www.sciencedirect.com/science/article/pii/S1878535222002301 https://doi.org/10.1016/j.arabjc.2022.103914 |
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| Summary: | Magnetically recyclable Schiff-based palladium nanocatalyst [Fe₃O₄@SiNSB-Pd] and its catalytic applicatiA magnetically separable palladium nanocatalyst has been synthesized through the immobilization of palladium onto 3-aminopropylphenanthroline Schiff based functionalized silica coated superparamagnetic Fe₃O₄ nanoparticles. The nanocatalyst (Fe₃O₄@SiNSB-Pd) was fully characterized using several spectroscopic techniques, such as FT-IR, HR-SEM, TEM, XRD, ICP, and XPS. The microscopic image of Fe₃O₄ showed spherical shape morphology and had an average size of 150 nm. The Pd-nanoparticles exhibited an average size 3.5 ± 0.6 nm. The successful functionalization of Fe₃O₄@SiNSB-Pd was identified by FT-IR spectroscopy and the appearance of palladium species in Fe₃O₄@SiNSB-Pd was confirmed by XRD analysis. While XPS has been utilized for the determination of the chemical oxidation state of palladium species in Fe₃O₄@SiNSB-Pd. Several activated and deactivated arene halides and olefines were employed for Mizoroki-Heck cross-coupling reactions in the presence of Fe₃O₄@SiNSB-Pd, each of which produced the respective cross-coupling products with excellent yields. The Fe₃O₄@SiNSB-Pd shows good reactivity and reusability for up to seven consecutive cycles. |
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