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Issue 4, 2015
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Novel glycosyl pyridyl-triazole@palladium nanoparticles: efficient and recoverable catalysts for C–C cross-coupling reactions

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Abstract

We report the development of a series of glycosyl pyridyl-triazole@palladium nanoparticles (GPT–Pd) which were synthesized by the reaction of azidoglycosides with 2-ethynylpyridine via click chemistry. These palladium nanoparticles were obtained in high yields and were fully characterized by 1H and 13C NMR, elemental analysis, transmission electron microscopy, and thermogravimetric analysis. The single crystal structure of GPT–Pd catalyst 5c was determined to show that the glycosyl pyridyl-triazole coordinated with palladium in a bidentate (N,N) coordination mode. Their use in palladium-catalyzed C–C coupling reactions such as Suzuki–Miyaura coupling, Heck reaction and Sonogashira reaction achieved quantitative production under mild conditions. Furthermore, the catalysts can be easily separated from the reaction mixture and the catalytic activity remained unchanged even after 8 successive catalytic cycles.

Graphical abstract: Novel glycosyl pyridyl-triazole@palladium nanoparticles: efficient and recoverable catalysts for C–C cross-coupling reactions

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The article was received on 06 Jan 2015, accepted on 05 Feb 2015 and first published on 05 Feb 2015


Article type: Communication
DOI: 10.1039/C5CY00013K
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Catal. Sci. Technol., 2015,5, 2065-2071

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    Novel glycosyl pyridyl-triazole@palladium nanoparticles: efficient and recoverable catalysts for C–C cross-coupling reactions

    H. Shen, C. Shen, C. Chen, A. Wang and P. Zhang, Catal. Sci. Technol., 2015, 5, 2065
    DOI: 10.1039/C5CY00013K

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