Used primarily in organic synthesis as a boronic ester coupling partner in Suzuki-Miyaura cross-coupling reactions. It enables the formation of carbon-carbon bonds, particularly for introducing a three-carbon ester side chain into aromatic or heteroaromatic systems. This compound is valuable in pharmaceutical and agrochemical research for constructing complex molecules, especially where functional group tolerance and mild reaction conditions are required. The tert-butyl ester group offers stability during reactions and can be easily deprotected to yield carboxylic acid derivatives later in a synthetic sequence. Its boronate ester moiety provides good shelf stability and reactivity with a wide range of halides in the presence of palladium catalysts.