反应详情

温度

100 °C

Hydrazine dihydrochloride (83.6 g) was dissolved in water (20 ml), heated to 100° C., and 3,4-dimethylfuran-2,5-dione (100.4 g) was introduced while stirring. Then the mixture was heated to reflux for 3 h. Subsequently, the precipitate formed was filtered off with suction, washed with water and dried. The residue was suspended in EA (2 l), filtered off with suction, and was dried. 69.7 g of the title compound were obtained. LC-MS rt: 0.19 min [M+H]+: 141.1 (met. b)

1. temperatureThen the mixture was heated
2. temperatureto reflux for 3 h
3. customSubsequently, the precipitate formed
4. filtrationwas filtered off with suction
5. washwashed with water
6. customdried
7. filtrationfiltered off with suction
8. customwas dried