Dimethylformamide → N-[2-fluoro-5-{2-(methoxycarbonyl)methoxy-3-pyridyloxy}-4-nitrophenyl]acetamide

Participants

Reaction Steps

First, 2.08 g of potassium carbonate was added to a solution of 3.0 g of 3-hydroxy-2-(methoxycarbonyl)methoxypyridine, 2.95 g of N-(2,5-difluoro-4-nitrophenyl)acetamide, and 40 ml of N,N-dimethylformamide. The mixture was stirred at 60° C. to 70° C. for 2 hours, cooled to room temperature, and then poured into water. The mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated to give crude crystals. The crude crystals were washed with diisopropyl ether to give 3.67 g of N-[2-fluoro-5-{2-(methoxycarbonyl)methoxy-3-pyridyloxy}-4-nitrophenyl]acetamide.

Provenance & Evidence