Used primarily in organic synthesis as a key building block for cross-coupling reactions, especially in Suzuki-Miyaura coupling. This compound enables the formation of carbon-carbon bonds, making it valuable in the development of pharmaceuticals, agrochemicals, and advanced materials. Its indole core is common in bioactive molecules, so the boronate ester functionality allows for efficient derivatization of indole-based structures. It is particularly useful in medicinal chemistry for constructing libraries of indole derivatives for drug discovery. Additionally, it serves in the synthesis of functional organic molecules for use in optoelectronics and fluorescent probes due to the inherent photophysical properties of modified indoles.