Microwave-Accelerated Iridium-Catalyzed Borylation of Aromatic C−H Bonds
作者:Peter Harrisson、James Morris、Todd B. Marder、Patrick G. Steel
DOI:10.1021/ol901306m
日期:2009.8.20
accelerates the Ir-catalyzed C−H borylation of aromatic substrates when compared with reactions carried out at the same temperature under standard heating conditions. Application to a one-pot single solvent process for tandem C−H borylation/Suzuki−Miyauracross-coupling sequences using microwave-accelerated reactions gives fast and efficient access to a wide range of biaryl and heterobiaryl compounds.
Methyl tert-butyl ether is a suitable solvent for iridium-catalyzed C-H borylation followed, in the same pot, by palladium-catalyzed Suzuki-Miyaura cross-coupling sequences, giving high yields of biaryls.