The source of nitrogen in Gabriel synthesis of amines is _____________.

• Gabriel phthalimide synthesis is a chemical reaction that transforms primary alkyl halides into primary amines.

• generally, potassium pthalamide is the reactant which reacts with ethanolic KOH at first and potassium salt of phthalimide forms, on heating with a certain alkyl halide (production of N-aikyl pthalimide) followed by hydrolysis in alkaline medium produces corresponding primary amine.

• Hence the source of nitrogen is C₆H₄(CO)₂N^–K⁺