Synthesis of Diaryl Sulfones at Room Temperature: Cu‐Catalyzed Cross‐Coupling of Arylsulfonyl Chlorides with Arylboronic Acids

An efficient and convenient method for the synthesis of diaryl sulfones was developed through the Cu-catalyzed cross-couplings of arylsulfonyl chlorides and arylboronic acids at room temperature in open air. This method is characterized by the use of inexpensive and readily available catalyst and substrates, mild reaction conditions, wide functionality tolerance, short reaction times for most substrates, and moderate to good yields.