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      Mild Cu(I)-catalyzed cascade reaction of cyclic diaryliodoniums, sodium azide, and alkynes: efficient synthesis of triazolophenanthridines.

      Organic Letters
      American Chemical Society (ACS)

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          Abstract

          Linear iodoniums are widely used as arylating reagents. However, cyclic diaryl idodoniums are ignored despite their potential to initiate dual arylations, atom and step economically. In our current work, a three-component cascade reaction of cyclic diaryliodoniums, sodium azide, and alkynes has been successfully achieved under mild conditions, catalyzed by cheap copper species. The regioselectivity associated with unsymmetrical iodoniums was enhanced by installing two methyls ortho and para to the I(III) center. The reaction enables a rapid access to a variety of complex molecules, triazolophenanthridine derivatives.

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          Journal
          25338129
          10.1021/ol502654a

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