Sodium Hydroxide → 4-(2,5-Dichloro-phenoxy)-pyrimidine-5-carboxylic acid

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Reaction Conditions

Reaction Steps

To a solution of 515 mg (1.64 mmol) 4-(2,5-dichloro-phenoxy)-pyrimidine-5-carboxylic acid ethyl ester in 10 mL tetrahydrofuran/water (2/1 v/v) was added 3.29 mL (3.28 mmol) 1M aqueous sodium hydroxide solution and the resulting solution was heated by microwave irradiation (Emrys Optimizer, Personal Chemistry) 30 minutes at 80° C. Solvents were evaporated under vacuum and the residue extracted three times with ethyl acetate and 1M aqueous hydrochloric acid. The combined organic layers were dried over magnesium sulfate, filtered and evaporated to give 385 mg (57%) of the desired compound as an off-white powder. MS (ESI): m/z=238.8 [M−H]−.

Provenance & Evidence