Hydrochloric Acid → 2,3-Difluoro-4-methoxybenzoic acid

Participants

Reaction Steps

Sodium hydroxide (2N, 50 mL) was added into a mixture of methyl 2,3-difluoro-4-methoxybenzoate (10.0 g, 49.5 mmol), THF (100 mL) and MeOH (100 mL). The mixture was stirred at room temperature for 6 h, and acidified with HCl (2N). The precipitated solid was filtered off, washed with water and dried to give a white solid (8.9 g, 96% yield, m.p. 194–196° C.); MS m/e 187 (M−H)+.

Provenance & Evidence