Photoinduced Remote Functionalization of Amides and Amines Using Electrophilic Nitrogen Radicals

Scientific Literature

Abstract

The selective functionalization of C(sp3)−H bonds at distal positions to functional groups is a challenging task in synthetic chemistry. Reported here is a photoinduced radical cascade strategy for the divergent functionalization of amides and protected amines. The process is based on the oxidative generation of electrophilic amidyl radicals and their subsequent transposition by 1,5‐H‐atom transfer, resulting in remote fluorination, chlorination and, for the first time, thioetherification, cyanation, and alkynylation. The process is tolerant of most common functional groups and delivers useful building blocks that can be further elaborated. The utility of this strategy is demonstrated through the late‐stage functionalization of amino acids and a dipeptide.

Authors: Sara P Morcillo 1Elizabeth M Dauncey 1Ji Hye Kim 1James J Douglas 2Nadeem S Sheikh 3Daniele Leonori 1

Link: https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201807941

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