The first amide-directed, palladium-catalyzed, intermolecular, highly selective C-H aminations with the non-nitrene-based nitrogen source N-fluorobenzenesulfonimide have been developed. This methodology might provide a new pathway for directed metal-catalyzed aromatic C-H amination.
Amide‐Directed Bay‐Region Two‐Step Annulative π‐Extension (APEX) of Biphenyls and Terphenyls with Diaryliodonium Salts: Efficient Access to Polycyclic Aromatic Hydrocarbons
π‐extension reaction of biphenyls and terphenyls with diaryliodonium salts has been developed. A variety of polycyclic aromatichydrocarbons can be synthesized efficiently according to this approach, such as triphenylene, dibenzo[fg,op]tetracene, and tribenzo[fg,ij,rst]pentaphene derivatives.