Used as a versatile reagent in organic synthesis, particularly for the introduction of nitrogen-containing functional groups. It serves as a source of electrophilic nitrogen, enabling amination of nucleophiles such as enolates, amines, and other carbon nucleophiles. Commonly employed in the preparation of protected amines and hydrazines through alkylation followed by deprotection. Its stability under various reaction conditions makes it suitable for multi-step syntheses. Frequently used in the formation of N–N bonds and in the synthesis of heterocycles. The presence of both Boc and tosyl protecting groups allows for selective deprotection and further functionalization, enhancing its utility in complex molecule assembly.