Hydrochloric Acid → 2-Chloro-4-fluoro-5-(3-fluoropyridin-2-yl)benzoic acid

Participants

Reaction Steps

To a mixture of methyl 2-chloro-4-fluoro-5-(3-fluoropyridin-2-yl)benzoate (Preparation 36, 240 mg, 0.85 mmol) in ethanol (5 mL) was added 2M LiOH in water (2.1 mL, 4.23 mmol). The reaction was stirred at room temperature for 1 hour before neutralising with 2M HCl (aq). The resulting precipitate was collected, washed with water and dried to afford the title compound as a white solid (160 mg, 70%).

Provenance & Evidence