Cu-catalyzed sequential C–N bond formations: expeditious synthesis of tetracyclic indoloindol-3-ones

Literature Information

Publication Date 2015-11-03
DOI 10.1039/C5QO00248F
Impact Factor 5.281
Authors

Anand M. Kulkarni, Kolluru Srinivas, Mukund V. Deshpande, Chepuri V. Ramana


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Abstract

The tetracyclic indoloindol-3-one core has been forged from easily accessible 2,2′-bis-bromochalcones employing a reaction cascade comprising Cu-catalyzed SNAr with azide; nitrene C–H insertion and intramolecular Ullmann reaction with all three C–N bond formations in one-go.

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