Sodium Hydroxide → 3-Methyl-2-(2-oxazolyl)benzoic acid

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Reaction Steps

To the title compound of step A (166 mg, 0.72 mmol) was added MeOH (7.2 mL) and 1M NaOH(aq) (7.2 mL). MeOH was evaporated and then 1 M HCl(aq) was added. To the solution was added DCM and the aqueous was extracted with DCM (3×). The combined organic layers were dried over MgSO4, filtered and evaporated to give the title compound (145 mg). MS (ESI) mass calcd. for C11H9NO3, 203.1. m/z found 204.1 [M+H]+. 1H NMR (400 MHz, DMSO-d6) δ 8.20 (s, 1H), 7.79-7.68 (m, 1H), 7.65-7.49 (m, 2H), 7.35 (s, 1H), 4.34 (s, 1H), 2.20 (s, 3H).

Provenance & Evidence