反应详情

温度

70 °C

A mixture of 5.0 parts of 5-nitro-1,4,4a,9a-tetrahydroanthraquinone with 50 parts of pyridine was stirred at 70° C for 1 hour and then poured into 500 parts of water to precipitate crystals. After cooled to 20°C, the crystals were recovered by filtration, washed with water and dried under reduced pressure to obtain 4.5 parts of 1-hydroxylaminoanthraquinone.

1. customto precipitate crystals
2. temperatureAfter cooled to 20°C
3. filtrationthe crystals were recovered by filtration
4. washwashed with water
5. customdried under reduced pressure