Sodium Hydroxide → 2-Fluoro-6-(2-pyrimidinyl)benzoic acid

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Reaction Conditions

Reaction Steps

To a solution of 2-fluoro-6-pyrimidin-2-yl-benzoic acid methyl ester (1.36 g, 5.85 mmol) in 2-methyl-THF (20 mL) was added sodium hydroxide (2 M in water, 9.3 mL, 18.6 mmol). The mixture was heated to 72° C. and stirred for 9 h. The layers were separated and the aqueous layer acified to pH 2 by dropwise addition of 50% HCl(aq) (3.1 mL). The resulting solids were stirred for 1 h, filtered, washed with water, MTBE, and heptanes, and then dried to provide the desired product as a white solid (1.12 g, 88% yield). 1H NMR (400 MHz, CD3OD): 8.83 (d, J=4.9 Hz, 2H), 8.03 (dd, J=7.9, 0.8 Hz, 1H), 7.59 (td, J=8.1, 5.6 Hz, 1H), 7.40 (t, J=4.9 Hz, 1H), 7.34 (ddd, J=9.4, 8.4, 1.0 Hz, 1H).

Provenance & Evidence