反应详情

50 ml of a solution of 1.00 g of 4-hydroxy-2-pyridone and 1.35 ml of benzoyl chloride in pyridine was refluxed for 6 hours. After the pyridine was distilled off, the residue was mixed with water. The precipitate was recovered by filtration and was washed with a small amount of ethanol to obtain 0.86 g of the title compound in a yield of 44%.

1. distillationAfter the pyridine was distilled off
2. additionthe residue was mixed with water
3. filtrationThe precipitate was recovered by filtration
4. washwas washed with a small amount of ethanol