Photoredox‐Catalyzed [3+2] annulation of Aromatic Amides with Olefins via Iminium Intermediates

Despite the preliminary success of transition metal-catalyzed [3+2] annulation of amides with olefins, the corresponding radical-type [3+2] annulation remains a laborious challenge. Herein we report the first photoredox-catalyzed radical-type [3+2] annulation of aromatic amides with olefins. We established an approach to generate unprecedented iminium radicals by reducing the oxyiminium intermediates, formed in situ from corresponding amides with Tf