反应详情

温度

80 °C

38.2 Parts 1-amino-4-bromoanthraquinone-2-sulphonic acid are dissolved in 200 parts water/100 parts i-propanol and the pH adjusted to 8.5-9.0 with sodium carbonate. After addition of 18 parts 4-acetylamino-2-aminotoluene the mixture is warmed to 80° C. and treated with 1 part cuprous chloride and 12 parts sodium carbonate. After 4 hours the reaction is over. Finally 25 parts 30% hydrochloric acid are added to the reaction mixture, which is then heated to reflux. After 18 hours the suspension is cooled to room temperature, filtered and washed with 1% hydrochloric acid, to give 1-amino-4-(5'-amino-2'-methylphenylamino)-anthraquinone-2-sulphonic acid.

1. temperatureis then heated to reflux
2. temperatureAfter 18 hours the suspension is cooled to room temperature
3. filtrationfiltered
4. washwashed with 1% hydrochloric acid