[Bmim]PF₆‑Promoted Ligandless Suzuki–Miyaura Coupling Reaction of Potassium Aryltrifluoroborates in Water

Abstract

The Suzuki–Miyaura coupling reactions of potassium aryltrifluoroborates with aryl bromides in water are promoted by the addition of [bmim]­PF₆ using Pd­(OAc)₂ as a catalyst and Na₂CO₃ as a base under air. The quantity of [bmim]­PF₆ used is crucial to the efficiency of the catalytic system. A wide range of biaryls and polyaryls can be easily prepared in good to excellent yields