Hyperbranched polymer immobilized palladium nanoparticles as an efficient and reusable catalyst for cyanation of aryl halides and reduction of nitroarenes

•A novel nitrogen-rich hyperbranched polymer was synthesized.•This new polymer was used for stabilization of Pd NPs.•Efficient reduction of nitroarenes and cyanation of aryl halides were performed using Pd catalyst.•The catalyst showed high stability and recyclability. A new nitrogen-rich hyperbranc...

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Bibliographic Details
Published in:Journal of organometallic chemistry 2022-06, Vol.970-971, p.122359, Article 122359
Main Authors: Gholinejad, Mohammad, Shojafar, Mohammad, Sansano, José M., Mikhaylov, Vladimir N., Balova, Irina A., Khezri, Rahimeh
Format: Article
Language:English
Subjects:
Cyanation
Nano-catalyst
Palladium
Polymer
Reduction
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Summary:•A novel nitrogen-rich hyperbranched polymer was synthesized.•This new polymer was used for stabilization of Pd NPs.•Efficient reduction of nitroarenes and cyanation of aryl halides were performed using Pd catalyst.•The catalyst showed high stability and recyclability. A new nitrogen-rich hyperbranched polymer comprising imidazolium and triazole moieties used for stabilization of Pd nanoparticles. The resulting new material, PolyTZ-IL@Pd NPs, was characterized with different techniques including Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-Ray (EDX), and transmission electron microscopy (TEM) analysis. PolyTZ-IL@Pd NPs has been used as an efficient catalyst in the reduction of nitroarenes to amines and cyanation of aryl bromides and iodides. The catalyst showed high stability and recyclability and recycled at least 10 times in reduction of 1‑chloro-4-nitrobenzene and 5 times in cyanation of iodobenzene. [Display omitted]
ISSN:0022-328X
1872-8561
DOI:10.1016/j.jorganchem.2022.122359