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  • Title: A highly effective cobalt catalyst for olefin aziridination with azides: hydrogen bonding guided catalyst design.
    Author: Ruppel JV, Jones JE, Huff CA, Kamble RM, Chen Y, Zhang XP.
    Journal: Org Lett; 2008 May 15; 10(10):1995-8. PubMed ID: 18422325.
    Abstract:
    [Co(P1)], which was designed on the basis of potential hydrogen-bonding interactions in the metal-nitrene intermediate, is a highly active aziridination catalyst with azides. [Co(P1)] can effectively aziridinate various aromatic olefins with arylsulfonyl azides under mild conditions, forming sulfonylated aziridines in excellent yields. The Co-based system enjoys several attributes associated with the relatively low cost of cobalt and the wide accessibility of arylsulfonyl azides. Furthermore, it generates stable dinitrogen as the only byproduct.
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