Sodium hydride → 4-(4-Amino-2,5-difluorophenoxy)pyridine-2-carboxamide

Participants

Reaction Steps

To a mixture of 4-amino-2,5-difluorophenol (100 mg, 0.64 mmol), and 4-chloropicolinamide (110 mg, 0.71 mmol) in DMF (2 mL) was added NaH (80 mg, 1.3 mmol, 60% dispersed in mineral oil). The reaction mixture was microwaved at 120° C. for 1.5 hours, then cooled to rt, diluted with water (20 mL), and extracted with EtOAc (30 mL×3). The combined organic phases were washed with brine (80 mL), dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash column chromatography with (EtOAc/PE (v/v)=4/1) to afford the title compound as a brown solid (52 mg, 26%).

Provenance & Evidence