| 摘要 |
PURPOSE:When anthraquinone is nitrated in the presence of a halogenated aliphatic hydrocarbon to produce the titled compound, a small amount of anthrone is made to coexist to make the particle size of the product uniform, thus facilitating the purification and separation and increasing the yield. CONSTITUTION:Anthraquinone is nitrated with a mixed acid in the presence of a halogenated aliphatic hydrocarbon such as methylene chloride, using high-concentration sulfuric acid, preferably of 80-95%, in an amount of 1.5-7.0, preferably 2.0-4.0 times the weight of the anthraquinone, and anthrone in an amount of 0.002-0.05, preferably 0.004-0.02pt. per 1pt. of the antraquinone to given 1-nitroanthraquinone. The reaction temperature is 0-60, preferably 10- 45 deg.C. An example of the halogenated aliphatic hydrocarbon is methylene chloride or 1,2-dichloroethane. |
