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Design of a palladium nanocatalyst produced from Schiff base modified dialdehyde cellulose and its application in aryl halide cyanation and reduction of nitroarenes

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Abstract

In this paper, a versatile heterogeneous catalyst system (Pd-DAC-Sch) based on stabilization of palladium nanoparticles on dialdehyde cellulose Schiff base (DAC-Sch) was developed and characterized thoroughly by a variety of spectroscopic (FT-IR, XRD, 13C CPMAS, and TG) and microscopic (SEM/EDS and TEM) methods. Then the prepared Pd-DAC-Sch system was evaluated as a heterogeneous nanocatalyst for aryl halide cyanation in the presence of K4[Fe(CN)6] and for reduction of nitroarenes to amines using NaBH4 in water at room temperature. Pd-DAC-Sch nanocatalyst efficiently cyanated various aryl halides by providing satisfactory reaction yields of 87–98%. Moreover, Pd-DAC-Sch catalyzed 4-nitrophenole (4-NA), 2-nitroaniline (2-NA), and 4-nitroaniline (4-NA) reductions in short reaction time. More importantly, Pd-DAC-Sch nanocatalyst was reapplied up to six successive runs by giving a yield of 86% without any important changes in its morphology and structure. This paper shows that Pd-DAC-Sch is a highly effective, reusable, chemically stable, and therefore a useful nanocatalyst.

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Acknowledgments

We would like to thank Aksaray University Scientific Research Projects Coordination Unit for its financial support (Project Number: 2021-012) for this study.

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Correspondence to Talat Baran.

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Çalışkan, M., Baran, T. Design of a palladium nanocatalyst produced from Schiff base modified dialdehyde cellulose and its application in aryl halide cyanation and reduction of nitroarenes. Cellulose 29, 4475–4493 (2022). https://doi.org/10.1007/s10570-022-04550-5

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  • DOI: https://doi.org/10.1007/s10570-022-04550-5

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