Used as a protecting group in organic synthesis, particularly for amines. The tert-butyl carbamate (Boc) group stabilizes the amine during reactions sensitive to nitrogen nucleophilicity or basicity. The 2,4-dimethoxybenzyl substituent enhances solubility in organic solvents and allows for selective deprotection under mild oxidative or acidic conditions. Commonly applied in peptide synthesis and pharmaceutical intermediates where stepwise construction and functional group compatibility are critical. Its use enables high yields and purity by minimizing side reactions involving the amine functionality.