Chinese Journal of Catalysis ›› 2018, Vol. 39 ›› Issue (2): 327-333.DOI: 10.1016/S1872-2067(17)62994-2

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Ruthenium(Ⅱ) complex catalysts bearing a 2,6-bis(tetrazolyl)pyridine ligand for the transfer hydrogenation of ketones

Liandi Wanga, Tingting Liua,b   

  1. a Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-11-01 Revised:2017-12-01 Online:2018-02-18 Published:2018-02-10
  • Contact: 10.1016/S1872-2067(17)62994-2

Abstract:

Three ruthenium(Ⅱ) complex catalysts bearing 2,6-bis(tetrazolyl)pyridine were synthesized, structurally characterized, and applied in the transfer hydrogenation of ketones. Their different catalytic activities were attributed to the different phosphine ligands on the 4-chloro-2,6-bis(1-(p-tolyl)-1H-tetrazol-5-yl)pyridine ruthenium(Ⅱ) complexes, with that based on 1,4-bis(diphenylphosphino) butane exhibiting better catalytic activity. A variety of ketones were reduced to their corresponding alcohols with >95% conversion.

Key words: 2,6-Bis(tetrazolyl)pyridine, Ruthenium, Transfer hydrogenation, Ketone, Homogeneous catalysis