Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (10): 1695-1700.DOI: 10.1016/S1872-2067(14)60105-4

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Hydration of terminal alkynes catalyzed by a water-soluble salen-Co(Ⅲ) complex

Shoufeng Wanga,b, Chengxia Miaob, Wenfang Wangb, Ziqiang Leia, Wei Sunb   

  1. a Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, Gansu, China;
    b State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China
  • Received:2014-03-20 Revised:2014-04-11 Online:2014-09-28 Published:2014-09-30
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21103207, 21133011).

Abstract:

A water-soluble salen-Co(Ⅲ) complex was studied as catalyst for hydration of terminal alkynes to methyl ketones in the presence of H2SO4 as a co-catalyst. The products were obtained with excellent yields using relatively low catalyst loadings and a simple protocol. Notably, the products were easily separated from the catalyst after reaction by extraction, and the catalyst could be recovered and reused with only a slight loss of activity.

Key words: Hydration, Alkynes, Water-solubility, Cobalt, Salen complex