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. 2013 Jan 16;135(2):620-3.
doi: 10.1021/ja3113565. Epub 2013 Jan 3.

Iron(II) bromide-catalyzed intramolecular C-H bond amination [1,2]-shift tandem reactions of aryl azides

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Iron(II) bromide-catalyzed intramolecular C-H bond amination [1,2]-shift tandem reactions of aryl azides

Quyen Nguyen et al. J Am Chem Soc. .

Abstract

Iron(II) bromide catalyzes the transformation of ortho-substituted aryl azides into 2,3-disubstituted indoles through a tandem ethereal C-H bond amination [1,2]-shift reaction. The preference for the 1,2-shift component of the tandem reaction was established to be Me < 1° < 2° < Ph.

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Figures

Scheme 1
Scheme 1
Observation of a Fe(II)-promoted Tandem Reaction.
Scheme 2
Scheme 2
Possible Mechanisms for Fe-Catalyzed Tandem Reaction.
Scheme 3
Scheme 3
Isolation of Reactive Intermediates.

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