Photoredox Alkylarylation of N‐Benzyl‐N‐(2‐ethynylaryl)‐Amides with α‐Bromoalkyl Esters: Access to Dibenzazepines.

A new two‐component alkylarylation of N‐benzyl‐N‐(2‐ethynylaryl)amides with α‐bromoalkyl esters using visible light photoredox catalysis promoted by silver salts for producing substituted dibenzazepines is described. Employing α‐bromoalkyl esters to form the alkyl carbon‐centered radicals enables the alkylarylation of alkynes where two carbon‐centered functional groups are introduced across the C≡C bond in a single reaction. [ABSTRACT FROM AUTHOR]