反应详情

One gram of 1,3-dimethyl-6-hydroxyaminouracil is boiled with 10 ml of acetic anhydride at 140° C. for 1 hour and, when hot, the insolubles are filtered off. The filtrate is concentrated to dryness to recover 0.7 g of the captioned compound as colorless needles. As recrystallized from ethanol, the compound melts at 200°-202° C.

1. filtrationwhen hot, the insolubles are filtered off
2. concentrationThe filtrate is concentrated to dryness
3. customto recover 0.7 g of the captioned compound as colorless needles
4. customAs recrystallized from ethanol