Palladium‐Catalyzed Highly Chemoselective Cascade Coupling‐Cyclization of Allenol Derivatives and Aryl Halides for the Construction of Dihydrobenzofuranols or Chromanols and Indolinols.

A highly chemoselective, palladium-catalyzed, cascade coupling-cyclization of allenol derivatives containing multiple functional groups was developed. Through this reaction, a series of functional dihydrobenzofuranols or chromanols and indolinols was easily obtained in good to high yields.