The document summarizes general methods for the preparation of amines, including: 1) Reduction of nitro compounds like nitrobenzene to aniline using hydrogen gas over a catalyst like palladium. 2) Ammonolysis of alkyl halides using ammonia, which yields a mixture of primary, secondary, tertiary amines and quaternary ammonium salts. 3) Reduction of nitriles using lithium aluminium hydride or hydrogenation over nickel to form primary amines. 4) Reduction of amides using lithium aluminium hydride yields amines. 5) Hoffman's bromamide reaction of primary acid amides with bromine in alkali forms amines with one less carbon