Used primarily as a building block in organic synthesis, especially in the preparation of complex nitrogen-containing molecules. Its strained ring structure makes it highly reactive, allowing it to undergo ring-opening reactions with nucleophiles, which is useful in creating amines, amino alcohols, and other functionalized compounds. Employed in pharmaceutical research for developing bioactive molecules and heterocyclic compounds. Also utilized in the synthesis of chiral auxiliaries and ligands for asymmetric catalysis due to its ability to influence stereochemistry in reactions.