Used as a chiral building block in asymmetric synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. Its bulky mesityl group enhances stereoselectivity in reactions such as enantioselective catalysis and chiral resolution. Commonly employed in the development of chiral ligands and organocatalysts due to its stability and defined stereochemistry. Also utilized in the synthesis of bioactive molecules where control of stereochemistry is critical for activity.