1,2-Dichloroethane → 5-(4-(2-Chloroethoxy)phenyl)-2-(2,6-difluorophenyl)oxazole-4-carboxamide

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-(2,6-difluorophenyl)-5-(4-hydroxyphenyl)oxazole-4-carboxamide (0.100 g, 0.316 mmol) in DMF (5 ml) were added potassium carbonate (0.220 g, 1.58 mmol) and 1,2-dichloroethane (0.50 ml, 6.32 mmol). The reaction was heated to 130° C. via microwave irradiation and held at that temperature for 1 hour. The reaction was then diluted with EtOAc, washed with water and brine and dried over Na2SO4 before being concentrated in vacuo. The resulting residue was purified by silica gel flash chromatography using 0-50% EtOAc in hexane as eluant to afford 5-(4-(2-chloroethoxy)phenyl)-2-(2,6-difluorophenyl)oxazole-4-carboxamide (0.11 g, 0.29 mmol, 92%) as a white solid. LCMS (1) 2.25 min; m/z (ES+) 379/381.

Provenance & Evidence