Phthalimide DBU Salt is widely used in organic synthesis as a versatile reagent, particularly in the preparation of primary amines via the Gabriel synthesis. It acts as a protective group for amines, enabling selective reactions in complex molecular structures. The compound is also employed in the synthesis of pharmaceuticals, agrochemicals, and fine chemicals due to its stability and reactivity. Additionally, it serves as a catalyst or intermediate in various chemical transformations, including cyclization and alkylation reactions. Its application extends to polymer chemistry, where it aids in the modification of polymer chains to achieve desired properties.