Ammonia → HCID 178511358, compound

Participants

Reaction Steps

To a stirred solution of liquid ammonia, 22 ml. (1.0 mole), in 200 ml. of dimethylformamide is added portionwise 4.3 g. (10 mmole) of N,N'-bis(2-bromoethyl) pyromellitic diimide. The mixture is stirred at room temperature for 48 hours. Excess ammonia is removed by concentration under reduced pressure without heating. The concentrate is diluted with several volumes of dilute aqueous sodium bicarbonate and cooled. The insolubles are collected, rinsed with water, cold methanol and ethyl ether furnishing N,N'-bis(2-aminoethyl)pyromellitic diimide.

Provenance & Evidence