HRID974716
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
CONDITIONS
反应条件
- 温度
- 60 °C
PROCEDURE
实验过程
38.2 parts of 1-amino-4-bromo-2-sulfoanthraquinone (bromamine acid) are condensed in an aqueous suspension with 12.7 parts of 4-aminophenol with the addition of 1 part of copper(II) sulfate at a pH of 8.5 and a temperature of 70° C. over a period of 1 to 2 hours. This results in a dark blue solution. After cooling to 20°-25° C., the reaction mixture is acidified until reaching a pH of about 1, stirred at 60° C. for about 1 h, salted out with sodium chloride, and the dye chromophore 4-(4'-hydroxyphenyl)amino-1-amino-2-sulfoanthraquinone is isolated by suction filtration.
WORKUP
后处理
- customThis results in a dark blue solution
- temperatureAfter cooling to 20°-25° C.