Used primarily as a chiral ionic liquid in asymmetric synthesis and catalysis. Its rigid, well-defined stereochemistry makes it effective in enantioselective reactions, where it serves as a phase-transfer catalyst to facilitate the transfer of anions between phases while maintaining high enantioselectivity. Commonly applied in alkylations, Michael additions, and epoxidations, especially in pharmaceutical synthesis where control over stereochemistry is critical. Also explored as a solvent or additive in electrochemical applications due to its ionic nature and thermal stability. Its recyclability and low volatility support use in green chemistry processes.