Metal‐Free, Visible Light‐Induced Borylation of Aryldiazonium Salts: A Simple and Green Synthetic Route to Arylboronates

Abstract The eosin Y‐catalyzed borylation of aryldiazonium salts under irradiation with visible light has been developed. This novel protocol provides an attractive route for the preparation of arylboronates, due to its operational simplicity and practicability as well as the mild reaction conditions.