Boron trichloride is widely used in the chemical industry as a catalyst in various organic synthesis reactions, particularly in the production of pharmaceuticals and fine chemicals. It is employed in the alkylation and acylation processes to facilitate the formation of complex organic molecules. Additionally, it serves as a key reagent in the production of boron-containing compounds, such as boron fibers and ceramics, which are essential in high-strength materials for aerospace and defense applications. In the electronics industry, boron trichloride is utilized in the purification of silicon and as a dopant in semiconductor manufacturing to modify electrical properties. It is also used in the synthesis of specialty chemicals, including flame retardants and surfactants, due to its ability to introduce boron atoms into organic structures.