反应详情

温度

80 °C

84.8 g (0.4 mole) of 1-butyl-5-nitroso-6-aminouracil are suspended in 440 ml of a concentrated 50% aqueous solution of ammonium hydroxide. The resulting suspension is heated to 80° C. 88 g (0.48 mole) of sodium dithionite are added in portions with stirring over a period of 30 minutes. Stirring is then continued for 30 minutes at 80° C. and then overnight at room temperature. The product is cooled in ice, the precipitate is filtered and then washed with a little ice water, giving 62 g crystals in the form of a very fine powder.

1. stirringStirring
2. waitis then continued for 30 minutes at 80° C.
3. customovernight
4. customat room temperature
5. temperatureThe product is cooled in ice
6. filtrationthe precipitate is filtered
7. washwashed with a little ice water