Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive molecules. Its primary application lies in the protection of amine functional groups during multi-step synthesis, allowing selective reactions at other sites in the molecule. The tert-butoxycarbonyl (Boc) group provides stability under various reaction conditions and can be easily removed under mild acidic conditions, making it ideal for peptide synthesis and the development of nitrogen-containing heterocycles. It is also employed in the synthesis of agrochemicals and functional materials where controlled amine reactivity is required.