Pyridine → Methyl 2-(5-bromopyridin-3-yl)acetate

Participants

Reaction Steps

2-(5-bromopyridin-3-yl)acetic acid (5.00 g, 23.14 mmol) in methanol (55 mL) at 0° C. was added thionyl chloride (2.196 mL, 30.1 mmol) slowly, pyridine (2.434 mL, 30.1 mmol) was added slowly after and the reaction was stirred at room temperature overnight. Solvent was removed in vacuo and the residue was diluted with water and extracted with ethyl acetate, the organics was washed with brine, dried over magnesium sulfate, filtered and concentrated. Biotage purification (35% EtOAc/Hex) gave title compound (4.73 g, 20.6 mmol, 89% yield). 1H-NMR (CDCl3, 500 MHz) δ 8.63 (d, J=2.14 Hz, 1H), 8.47 (d, J=1.83 Hz, 1H), 7.84 (dd, J=2.14, 1.83 Hz, 1H), 3.76 (s, 3H), 3.65 (s, 2H). Mass spec.: 230.9 (MH)+.

Provenance & Evidence