Used as a chiral organocatalyst in asymmetric synthesis, particularly in enantioselective cyclization and cyclodehydration reactions. It promotes the formation of chiral heterocyclic compounds with high enantioselectivity, making it valuable in pharmaceutical synthesis where stereochemistry is critical. Its structure allows for effective stereocontrol in the construction of complex ring systems, especially in the development of bioactive molecules and natural product intermediates. The tetrafluoroborate salt enhances stability and solubility in polar organic solvents, improving catalytic efficiency under mild reaction conditions.