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1 Polish Journal of Chemical Technology

1 2017

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Ionic [Ru] complex with recyclability by electro-adsorption for efficient catalytic transfer hydrogenation of aryl ketones

Yue C. J., Xue Q. N., Gu L. P., Wang J. F.

Polish Journal of Chemical Technology

2017

Vol. 19, nr 4

75--79

The efficient reuse of homogeneous catalyst is important. Cation complex of [Ru(η6 -p-cymene)(PPh3 )(CH3 CN) Cl]PF6 with different ligands was synthesized and characterized by infrared spectroscopy (IR), 1 H-, 13 C- and 31 P-nuclear magnetic resonance spectroscopy (1 H-, 1 3C- and 31 P-NMR), element analysis (EA), and high resolution mass spectrometry (HR-MS). The complex was used as a catalyst for the hydrogen transfer reduction of carbonyl for the first time, presenting an excellent catalytic performance of 89%–98% conversion of acetophenone and its derivatives. The catalyst may be efficiently reused by the electro-adsorption of 10 times to one catalyst recovery. The cation [Ru] complex presented advantages of both homogeneous and heterogeneous catalysts.