Used as a key reagent in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in complex organic molecules. Particularly valuable in pharmaceutical synthesis for constructing biaryl frameworks, where the phthalimide group acts as a protected amine precursor. The pinacol ester enhances stability and solubility, making it suitable for use in mild reaction conditions. Commonly applied in the development of bioactive compounds and functional materials requiring selective and efficient coupling steps.