Water → 3-Bromo-5-methoxypyridine

Participants

Reaction Steps

3,5-Dibromopyridine (30.0 g) was added to a stirred solution of sodium methoxide (prepared from 11.6 g of sodium) in methanol (120 ml) and heated to reflux for 70 hours under an atmosphere of nitrogen. The mixture was cooled to ambient temperature, poured into water (1000 ml), extracted with diethyl ether and the extracts combined, washed with water and dried over magnesium sulphate. The solvent was evaporated to give 3-bromo-5-methoxypyridine as a colourless liquid, which slowly crystallised on storing (19.3 g).

Provenance & Evidence