| 摘要 |
The nitro group of an alpha -nitroanthraquinone is replaced by chlorine by reaction with an ionic chloride in a solvent in the presence of an acid or of a compound which eliminates an acid. The ionic chloride may be an alkali metal, alkaline earth metal, ammonium or quaternary ammonium chloride. A molten tertiary amine hydrochloride can function as the ionic chloride, the acid and the solvent. The process permits one or more nitro groups of a poly- alpha -nitroanthraquinone to be selectively replaced.
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