p-Toluenesulfonic acid monohydrate → 2-(3-Nitro-6-fluorophenyl)-4-methylbenzoxazole

Participants

Reaction Steps

Prepared by the method of Example 15b), from N-(2-hydroxy-6-methylphenyl)-2-fluoro-5-nitrobenzamide (667 mg, 2.3 mmol) and p-toluenesulfonic acid monohydrate (961 g, 5.1 mmol) the subtitle compound was obtained (327 mg, 52%). 1H NMR (DMSO) δ 8.92(m, 1H), 8.50(m, 1H), 7.82–7.74(m, 2H), 7.70(s, 1H), 7.33(dd, 1H).

Provenance & Evidence