Hydrochloric Acid → 5-(2,2-Difluoroethoxy)-3-fluoro-pyridine-2-carboxylic acid

Participants

Reaction Steps

Sodium hydroxide (2 M in water, 2.43 mL, 4.86 mmol) is added to a solution of ethyl 5-(2,2-difluoroethoxy)-3-fluoro-pyridine-2-carboxylate (242 mg, 0.97 mmol) in THF (10 mL). The reaction is stirred at room temperature for 5 days. The reaction is quenched by the addition of 4 M HCl in dioxane (1.25 mL, 5 mmol) and the solution is concentrated to give the crude title compound (493 mg, 229%). ES/MS (m/e): 222.0 (M+1).

Provenance & Evidence