Used as a versatile intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. It is employed to introduce the oxetan-3-yl group into target molecules via nucleophilic substitution of the mesylate leaving group. Oxetane rings are valuable in drug design due to their ability to enhance metabolic stability and solubility of compounds. Additionally, it serves as a key reagent in the modification of biomolecules, enabling the creation of novel chemical entities with potential therapeutic applications. Its reactivity makes it suitable for cross-coupling reactions and the synthesis of complex molecular structures.