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Dirhodium(II) Complexes of 2-(Sulfonylimino)pyrrolidine: Synthesis and Application in Catalytic Benzylic Oxidation

Authors

  • Abudureheman Wusiman,

    1. Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi 830011, China, Fax: +86-991-3838708
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
    3. School of Chemistry & Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China
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  • Xiarepati Tusun,

    1. Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi 830011, China, Fax: +86-991-3838708
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
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  • Chong-Dao Lu

    1. Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi 830011, China, Fax: +86-991-3838708
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Abstract

A new class of dirhodium(II) tetraamidinates derived from 2-(sulfonylimino)pyrrolidines has been prepared through ligand substitution by using dirhodium(II) acetate, in which (3,1) geometric isomers are formed predominantly. Among these complexes, (3,1)-Rh2(Msip)4, exhibits good catalytic performance in benzylic oxidation. In the presence of (3,1)-Rh2(Msip)4 a variety of benzylic derivatives, including strongly electron-deficient arylalkanes such as 1-ethyl-4-nitrobenzene, are readily oxidized in water by the inexpensive oxidant T-HYDRO® (70 wt.-% aqueous tert-butyl hydroperoxide).

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