Isopropanol → 5-Bromo-4-chloropyridine-2-carboxylic acid

Participants

Reaction Steps

0.50 g (2.3 mmol) (5-bromo-4-chloro-pyridin-2-yl)-methanol in 8 mL acetone were added dropwise at RT to 0.71 g (4.5 mmol) potassium permanganate in 10 mL acetone and then the mixture was stirred for 17 h at RT. Then 10 mL isopropanol were added and the mixture was stirred for a further 5 h at RT. The precipitated manganese dioxide was suction filtered and washed with water. The filtrate was partially evaporated down and the aqueous phase was adjusted to a pH of 3 with 1N aqueous hydrochloric acid solution. The precipitate formed was suction filtered.

Provenance & Evidence