Used as a chiral auxiliary in asymmetric synthesis, particularly in the preparation of enantiomerically pure amines and amino acids. Its stereochemistry allows for high diastereoselectivity when forming carbon-nitrogen bonds. Commonly employed in the Ellman’s sulfinimine chemistry, where it reacts with organometallic reagents to produce optically active sulfinamides that can be easily hydrolyzed to primary amines. Also utilized in the synthesis of pharmaceuticals and natural products requiring precise stereochemical control. The compound’s stability and ease of removal make it ideal for multi-step synthetic routes.