Diverse N-heterocyclic ring systems via aza-Heck cyclizations of N-(pentafluorobenzoyloxy)sulfonamides

Aza-Heck cyclizations initiated by oxidative addition of Pd0-catalysts into the N−O bond of N-(pentafluoro-benzoyloxy)sulfonamides are described. These studies, which encompass only the second class of aza-Heck reaction developed to date, provide direct access to diverse N-heterocyclic ring systems.