This compound is primarily utilized in organic synthesis, particularly in cross-coupling reactions such as Suzuki-Miyaura coupling. Its boronate ester group makes it a valuable reagent for forming carbon-carbon bonds, enabling the construction of complex organic molecules. It is often employed in the synthesis of pharmaceuticals and agrochemicals, where the quinolinone moiety can contribute to biological activity. Additionally, it serves as an intermediate in the development of organic materials, including polymers and dyes, due to its ability to introduce functional groups into molecular frameworks.