Progress of <i>N</i>-Amino Pyridinium Salts as Nitrogen Radical Precursors in Visible Light Induced C—N Bond Formation Reactions

Abstract

Because of the redox properties of pyridine salt, it is found that N-amino pyridine salt plays an important role in free radical chemistry.N-Amino pyridinium salts easily undergo single electron reduction and N-N bond fragmentation to deliver N radicals.In this review, the advances of N-amino pyridinium salt serves as a powerful nitrogen radical precursor in visible light induced reactions for C-N bond formation are summarized in the last three years.According to the reaction substrates, the review is divided into three parts: react with arenes, react with olefins, and react with alkanes.

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