Diisopropyl Ether → HCID 19812269, compound

Participants

Reaction Steps

To a solution of malononitrile (300 g) and acetic acid (54.6 g) in acetonitrile (2.1 l) was added sodium nitrite (313 g) at 60°-65° C. After being stirred at the same temperature for an hour, ethyl 2-bromo-2-methylpropanoate (797 g) was added to the mixture at 65° C. After being refluxed for five hours, the mixture was cooled to the ambient temperature and allowed to stand overnight. The resulting mixture was poured into a mixture of water (4.2 l) and diisopropyl ether (4.2 l). The separated organic layer was washed with water and brine, dried over magnesium sulfate and evaporated under reduced pressure to give 2-(1-ethoxycarbonyl-1-methylethoxyimino)propanedinitrile (860 g).

Provenance & Evidence