This chemical is primarily utilized in organic synthesis as a protecting group reagent. It is often employed to protect amine functionalities during complex chemical reactions, particularly in peptide synthesis. The tert-butoxycarbonyl (Boc) group safeguards the amine, preventing unwanted side reactions, and can be selectively removed under mild acidic conditions. Additionally, the tosylate group (4-methylbenzenesulfonate) serves as a good leaving group, facilitating further functionalization or substitution reactions. Its application is crucial in the development of pharmaceuticals and bioactive molecules, where precise control over reaction pathways is essential.