Used as a chiral building block in asymmetric synthesis, particularly in the pharmaceutical industry for developing enantiomerically pure drugs. Its bulky mesityl group enhances stereoselectivity in reactions such as catalytic hydrogenation and nucleophilic additions. Commonly employed in the preparation of chiral ligands and organocatalysts, enabling efficient synthesis of complex molecules with high optical purity. Also utilized in resolution processes to separate enantiomers due to its well-defined stereochemistry and crystalline properties.