Method B.-Phthalimide (14.7 g., 0.1 mole) and y-diethylaminoproylamine (13.0 g., 0.1 mole) were gently heated together in an oil-bath at 90-110'for four and onehalf hours. During the first hour, evolution of ammonia occurred and the mixture became a viscous liquid. The product was taken up in aqueous hydrochloric acid and further purified as described under Method A.
