2-Bromo-5-methylpyridine → 5-Methylpicolinonitrile

Participants

Reaction Conditions

Reaction Steps

36 g (209 mmol) 2-Bromo-5-methylpyridine and 37.5 g (418 mmol) copper cyanide are refluxed for two hours in 500 ml dimethylformamide. After cooling down to 50° C., 10% aqueous armnoia solution (500 ml) is added with stirring. The product is extracted with dichloromethane, the organic phase is dried over magnesium sulfate, and the solvent is removed in vacuo. The product is purified by column chromatography (silica, eluent cyclohexane/ethyl acetate 9:1).

Provenance & Evidence