M-Cresol → 3-(4-m-Tolyloxymethyl-phenyl)-isoxazole-5-carboxylic acid amide

Participants

Reaction Conditions

Reaction Steps

To a mixture of 3-(4-bromomethyl-phenyl)-isoxazole-5-carboxylic acid amide (which may be prepared as described in Preparation of Intermediate 14; 30 mg, 0.107 mmol) in CH3CN (2 mL) were added m-cresol (20 mg, 0.185 mmol) and K2CO3 (30 mg, 0.22 mmol). The mixture was heated at 90° C. for 16 h and then evaporated to dryness. The residue was purified by chromatography (66-75% EtOAc/hexanes) to give 3-(4-m-tolyloxymethyl-phenyl)-isoxazole-5-carboxylic acid amide (20 mg, 61%) as a white powder. 1H NMR (300 MHz, DMSO-d6) δ ppm 8.38 (br. s., 1H), 8.00 (br. s., 1H), 7.86-7.95 (m, 3H), 7.53-7.63 (m, 4H), 7.11-7.22 (m, 1H), 6.69-6.89 (m, 3H), 5.15 (s, 2H), 2.26 (s, 3H).

Provenance & Evidence