Hydrochloric Acid → HCID 11587019, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 3-fluoro-4-(4-fluoro-benzyloxy)-benzoic acid 4-fluoro-benzyl ester (8.1 g, 22 mmol) and potassium hydroxide (6.1 g, 109 mmol) in water:dioxane (4:1, 150 mL) was heated at 100° C. for 12 h. After cooling to room temperature the mixture was acidified to pH 3 with HCl and the mixture was extracted with ethyl acetate (2×100 mL) and the combined extracts washed with brine (100 mL) and dried over sodium sulfate. Filtration and half evaporation gave a precipitate which was filtered off and crystallised from ethyl acetate:heptane to afford the title compound (4.9 g, 85%) as a white solid. MS: m/e=263.0 (M−H−).

Provenance & Evidence