The phosphine-free Suzuki-Miyaura carbon-carbon cross-coupling
reactions of activated and deactivated aryl halides and 2-acetyl-5-bromobenzofuran
with various aryl- or heteroarylboronic acids were investigated.
A benzothiazole-based palladium(II) complex was used as a precatalyst
for the reactions under both thermal and microwave conditions in
air using water as a solvent.
palladium - catalysis - microwave irradiation - Suzuki reactions - benzofuran