ChemInform Abstract: A C—H Borylation Approach to Suzuki—Miyaura Coupling of Typically Unstable 2—Heteroaryl and Polyfluorophenyl Boronates.

Abstract Biaryls and heterobiaryls are prepared from heteroarenes/fluorobenzenes in two steps involving the iridium‐catalyzed C—H borylation with bis(pinacolato)diboron (or the corresponding monomer) to give intermediate pinacol boronate esters which undergo the coupling with aryl bromides or chlorides.The pinacol boronate esters act as surrogates for their corresponding unstable boronic acids.