Hydrochloric Acid → 5-Chloro-4-cyclobutylmethoxy-pyridine-2-carboxylic acid

Participants

Reaction Steps

To a solution of 5-chloro-4-cyclobutylmethoxy-pyridine-2-carboxylic acid methyl ester (339 mg, 1.33 mmol) in THF (10 mL) was added sodium hydroxide solution (2.65 mL, 1 N). The resulting solution was stirred at room temperature for 2 hours, and afterwards acidified with hydrochloric acid (10 mL, 1N) and poured into ethyl acetate (50 mL). The phases were separated and the water phase was extracted with additional ethyl acetate; the organic portions were combined, dried over Na2SO4, filtered and concentrated. The crude material (286 mg, 89%) a white solid, was sufficiently pure to be used in the next step without further purification. MS (ESI, m/z): 240.1 (M−H−).

Provenance & Evidence