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US4292247A Process for producing anthraquinone intermediates 失效
制备蒽醌中间体的方法

Process for producing anthraquinone intermediates
摘要:
1-Amino-2,4-dibromoanthraquinone, which can be hydrolyzed to produce 1-amino-2-bromo-4-hydroxyanthraquinone which is an intermediate for the production of dyes, is produced by bromination of 1-aminoanthraquinone in a concentrated sulfuric acid at a temperature of 50.degree. to 150.degree. C.
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