Used as a coupling partner in Suzuki-Miyaura cross-coupling reactions to synthesize complex organic molecules, particularly in pharmaceutical and agrochemical research. Its boron-based structure allows for efficient carbon-carbon bond formation under mild conditions, enabling the incorporation of benzo[b]thiophene moieties into target compounds. This is valuable in drug discovery, where benzo[b]thiophene scaffolds are present in bioactive molecules and functional materials. The trifluoroborate group enhances stability and handling compared to boronic acids, improving reaction reproducibility and yield.