Visible‐Light‐Mediated Photoredox 1,2‐Aryl Migration of Allylic Alcohols With Sulfoxonium Ylides for the Synthesis of 1,5‐Dicarbonyl Scaffolds

We herein report a mild, metal‐free photoredox strategy that enables a 1,2‐aryl migration reaction of allylic alcohols with sulfoxonium ylides, thereby providing direct access to structurally diverse 1,5‐dicarbonyl compounds. These adducts can be further transformed into pyridine derivatives via a concise one‐pot, two‐step sequence. Notably, this protocol exhibits exceptional functional‐group tolerance and a broad substrate scope and offers a synthetically attractive route that unites atom economy with step economy for the preparation of both 1,5‐dicarbonyls and pyridine frameworks of structural significance.