P III /P V Redox Organocatalysis Enables Intramolecular Aza‐Wittig Cyclizations of Imides: Direct Access to Pharmaceutically Relevant Amidine Scaffolds
A catalytic intramolecular aza‐Wittig reaction of azide‐functionalized imides has been developed under P III /P V redox organocatalytic conditions, enabling rapid and direct access to structurally diverse amidine‐containing heterocycles. The transformation is promoted by a methanophosphocine oxide catalyst in com...