Used as a chiral organocatalyst in asymmetric synthesis, particularly in enantioselective cyclization and cyclodehydration reactions. Its rigid, sterically hindered structure enables high stereocontrol, making it effective in promoting the formation of chiral heterocycles and polycyclic compounds. Commonly applied in the synthesis of biologically active molecules where precise stereochemistry is critical. The tetrafluoroborate salt enhances stability and solubility in polar organic solvents, facilitating its use in various catalytic transformations.