Gold/Copper Dual-Catalyzed Annulation of Arynes with Phosphites: A Synthetic Strategy for Dibenzophospholes

A synthetic approach to dibenzophospholes was developed via the gold- and copper-catalyzed annulation reactions of arynes and phosphites. The reaction conditions demonstrated a broad functional group tolerance, enabling the synthesis of a diverse range of dibenzophosphole 5-oxides. This method is useful for preparing dibenzophospholes with unique optical and electronic properties.