Pd(PPh3)4‐Catalyzed Buchwald–Hartwig Amination ofAryl Fluorosulfonates with Aryl Amines

Abstract Novel Buchwald–Hartwig aminations of aryl fluorosulfonates using a catalytic amount of Pd(PPh 3 ) 4 in the presence of Cs 2 CO 3 are described. From these reactions, a variety of biaryl amines were obtained in moderate to good yields. This system allows for the efficient amination of aromatic groups containing electron‐rich as well as electron‐poor functional groups. Aryl fluorosulfonates could be applied as alternative cross‐coupling partners to aryl halides in palladium‐catalyzed aminations.