Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in pharmaceutical and agrochemical synthesis. Its boronic ester group offers enhanced stability and handling compared to the corresponding boronic acid, making it suitable for large-scale applications. Commonly employed in the preparation of liquid crystals, organic semiconductors, and bioactive molecules where precise aryl-aryl coupling is required. The pinacol protecting group facilitates purification and storage, while being readily cleaved under mild conditions when needed.