Palladium-catalyzed borylation of m-dibromobenzene derivative and its applications in one-pot tandem Suzuki-Miyaura arenes synthesis

One-step synthesis of several alpha,omega pinacol boronates starting from m-dibromobenzene derivative and bis(pinacolato)diboron through Miyaura reaction has been reported. The present approach provided low to moderate yields of monomer boronates, and trace to low yields of dimmer, trimer and tetramer boronates. Furthermore, the resulted boronates can be followed by Suzuki-Miyaura cross-coupling without purification, which enhances the practical usefulness of this method. (C) 2015 Elsevier Ltd. All rights reserved.