反应详情

温度

50 °C

0.07 Gram of 5% palladium on carbon catalyst was added to a mixture of 7.7 grams of 5-nitrotetrahydroanthraquinone and 240 grams of butanol, which was then heated up to 50° C. Hydrogen was then fed into the solution under normal pressure to absorb hydrogen in an amount of 2 mols per mol of the starting 5-nitro compound. After separation of the catalyst by filtration, 4.0 grams of crystal sodium carbonate was added to the reaction solution while agitating at a temperature of 100° C. for 1 hour. Thereafter, hydrochloric acid was added to the reaction solution for neutralization, then butanol was distilled off from the solution until crystals began to precipitate. After allowing to cool, the reaction solution was filtered and the crystals were washed with water and dried to obtain 6.0 grams of 1-aminoanthraquinone having a purity of 97.2%.

1. customto absorb hydrogen in an amount of 2 mols per mol of the starting 5-nitro compound
2. customAfter separation of the catalyst
3. filtrationby filtration, 4.0 grams of crystal sodium carbonate
4. additionwas added to the reaction solution
5. additionThereafter, hydrochloric acid was added to the reaction solution for neutralization
6. distillationbutanol was distilled off from the solution until crystals
7. customto precipitate
8. temperatureto cool
9. filtrationthe reaction solution was filtered
10. washthe crystals were washed with water
11. customdried