Journal of the American Chemical Society 2011-02-23

Redox-neutral indole annulation cascades.

Michael C Haibach, Indubhusan Deb, Chandra Kanta De, Daniel Seidel

Index: J. Am. Chem. Soc. 133(7) , 2100-3, (2011)

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Abstract

Aminobenzaldehydes react with indoles in an unprecedented cascade reaction. This acid-catalyzed redox-neutral annulation proceeds via a condensation/1,5-hydride shift/ring-closure sequence. Polycyclic azepinoindoles and related compounds are obtained in a single step with good to excellent yields.