2-Acetylphenylboronic acid is a reactant used for a variety of coupling reactions, as well as synthesis and hydroxy masking, Suzuki-Miyaura cross-coupling reactions, rhodium-catalyzed annulation of ynamides, transient masking of hydroxy groups, cationic palladium complex-catalyzed diastereoselective tandem annulation, hydrogen peroxide mediated formation of heteroaryl ethers and copper-catalyzed transmetalation and homocoupling.