Potassium Acetate → HCID 53794938, compound

Participants

Reaction Steps

50 ml of methanol was added to 0.4 g (1 mmol) of 3-(3-acetyl-4-chloro-6-fluoro-2-methylbenzofuran-7-yl)-1-methyl-6-trifluoromethyluracil, 0.5 g (5 mmol) of potassium acetate and 0.5 g (6 mmol) of methoxyamine hydrochloride, followed by stirring at room temperature for 12 hours and further for 8 hours under heating and refluxing. After completion of the reaction, methanol was distilled off under reduced pressure, ethyl acetate was added to the obtained residue, and the mixture was washed sequentially with water and a saturated sodium chloride aqueous solution. The organic layer was dried over anhydrous sodium sulfate. Then, the solvent was distilled off under reduced pressure. The obtained residue was purified by silica gel column chromatography to obtain 0.4 g (yield: 100%) of the desired product as pale yellow crystals. Melting point: 65-67° C., 1H-NMR (solvent: CDCl3): 1.54 (1H,s), 2.21(3H,s), 2.35(3H,s), 3.59(3H,s), 3.91(3H,s), 6.41(1H,s), 7.16(1H,d)ppm

Provenance & Evidence