Used as a reagent in Suzuki-Miyaura cross-coupling reactions to introduce the 4-chloropyridin-3-yl group into organic molecules. This enables the synthesis of complex pyridine-containing compounds, which are valuable in pharmaceutical and agrochemical research. The trifluoroborate moiety enhances stability and handling compared to boronic acids, while still providing efficient coupling under mild conditions. Commonly applied in the development of bioactive molecules and functional materials requiring halogenated pyridine building blocks.