Methyl iodide → 5-Bromo-2-methoxypyridine

Participants

Reaction Conditions

Reaction Steps

Silver carbonate (16.0 g, 57.8 mmol) and methyl iodide (6.5 mL, 103 mmol) were sequentially added to a solution of 5-bromopyridin-2(1H)-one (15.0 g, 86.2 mmol) in benzene (225 mL). The mixture was stirred for 16 h at 50° C. After cooling to room temperature, the mixture was filtered through celite and concentrated. Purification by chromatography using 1-5% ethyl acetate in pet ether provided 12 g of the desired compound: 1H NMR (300 MHz, CDCl3) 8.15-8.25 (narrow m, 1H), 7.63 (dd, J=9, 3 Hz, 1H), 6.63 (d, J=9 Hz, 1H), 3.92 (s, 3H).

Provenance & Evidence