Sodium Hydroxide → HCID 21463566, compound

Participants

Reaction Steps

To a solution of ethyl 3-[2-(4,5,7-trifluorobenzothiazol-2-yl)ethyl]benzoate (133 mg, 0.36 mmol) in a mixture of water (5 ml) and dioxane (5 ml) was added dropwise aqueous 2N sodium hydroxide (2 ml) and the mixture was stirred for 7 hours at ambient temperature. The reaction mixture was diluted with water and then washed with ether. The aqueous layer was acidified with 10% hydrochloric acid and extracted with ethyl acetate. After drying, evaporation of the solvent left crude crystals, which were recrystallized from ether to give 3-[2-(4,5,7-trifluorobenzothiazol-2-yl)ethyl]benzoic acid (82 mg, 68%) as colorless crystals.

Provenance & Evidence