Visible‐Light‐Induced Carbo‐2‐pyridylation of Electron‐Deficient Alkenes with Pyridinium Salts

A simple and practical visible-light-induced carbo-2-pyridylation of electron-deficient alkenes with readily available N-benzoylmethylpyridinium bromides is reported. More than 40 examples are presented and proceed in greater than 80 % yield (on average) with excellent regio- and diastereoselectivities.