Copper-Catalyzed Synthesis of -Keto Sulfones from Enol Silyl Ether and Sodium Arylsulfinates

beta-Keto sulfones are an important group of sulfur-containing compounds and intermediates for organic synthesis, which are widely used in the construction of natural products and various important organic compounds. A method for the rapid synthesis of beta-keto sulfones catalyzed by copper bromide from enol silyl ether and sodium arylsulfinates is developed, which has the advantages of simple operation, mild conditions and short reaction time.