Regioselective Radical Arene Amination for the Concise Synthesis of ortho-Phenylenediamines.

ABSTRACT: The formation of arene C-N bonds directly from C-H bonds is of great importance and there has been rapid recent development of methods for achieving this through radical mechanisms, often involving reactive N-centered radicals. A major challenge associated with these advances is that of regiocontrol, with mixtures of regioisomeric products obtained in most protocols, limiting broader utility. We have designed a system that utilizes attractive noncovalent interactions between an anionic substrate and an incoming radical cation in order to guide the latter to the arene ortho position. The anionic substrate takes the form of a sulfamate-protected aniline and telescoped cleavage of the sulfamate group after amination leads directly to ortho-phenylenediamines, key building

SUBMITTER: Gillespie JE 

PROVIDER: S-EPMC8251697 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature