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US4741867A Process for the preparation of 1-amino-2-bromo-4-hydroxyanthraquinone 失效
制备1-氨基-2-溴-4-羟基蒽醌的方法

Process for the preparation of 1-amino-2-bromo-4-hydroxyanthraquinone
摘要:
1-Amino-2-bromo-4-hydroxyanthraquinone is obtained in good yields and in an environmentally acceptable manner by bromination of 1-aminoanthraquinone in 2 to 5 times the quantity by weight of 80 to 98% strength sulphuric acid and using 1.1-1.5 mole of bromine under elevated pressure.
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