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Issue 103, 2016, Issue in Progress
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Synthesis and characterization of trinuclear N-heterocyclic carbene–palladium(II) complexes and their applications in the Suzuki–Miyaura cross-coupling reaction

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Abstract

Five novel trinuclear N-heterocyclic carbene–palladium(II) complexes 5a–e were conveniently synthesized through one-pot reactions of imidazolium salts, tridentate N-heterocycles {tris(4-(pyridin-4-yl)phenyl)amine or tris(4-(pyridin-3-yl)phenyl)amine} and palladium chloride in one step. All of the new complexes have been fully characterized by elemental analysis, 1H, 13C NMR, and IR spectra. Among them, the molecular structures of complex 5d have been determined by X-ray single-crystal diffraction. Moreover, the obtained trinuclear palladium(II) complexes were the effective catalyst precursors for the Suzuki–Miyaura coupling of aryl as well as benzyl chlorides with arylboronic acids. Under the optimal reaction conditions, the expected biaryl products were obtained in good to almost quantitative yields.

Graphical abstract: Synthesis and characterization of trinuclear N-heterocyclic carbene–palladium(ii) complexes and their applications in the Suzuki–Miyaura cross-coupling reaction

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Publication details

The article was received on 19 Aug 2016, accepted on 04 Oct 2016 and first published on 06 Oct 2016


Article type: Paper
DOI: 10.1039/C6RA20852E
Citation: RSC Adv., 2016,6, 100690-100695
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    Synthesis and characterization of trinuclear N-heterocyclic carbene–palladium(II) complexes and their applications in the Suzuki–Miyaura cross-coupling reaction

    T. Wang, L. Liu, K. Xu, H. Xie, H. Shen and W. Zhao, RSC Adv., 2016, 6, 100690
    DOI: 10.1039/C6RA20852E

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