反应详情

To 50 ml of a suspension of 2.00 g of 4-hydroxy-2-pyridone in dioxane was added 2.49 g of carboxymethylisocyanate and the resultant mixture was refluxed at 80° C. for 2 hours. After completion of the reaction, the dioxane was distilled off and diethylether was added to the residue to produce 2.20 g of the title compound in the form of solid in a yield of 54%.

1. customAfter completion of the reaction
2. distillationthe dioxane was distilled off
3. additiondiethylether was added to the residue