反应详情

温度

50 °C

A mixture of 1-acetylaminoanthraquinone (purity 99.9%, 26.5 g), xylene (500 g), tetra-n-butyl ammonium chloride (0.6 g) and 96% potassium hydroxide (12.0 g) was stirred for 1 hour while being maintained at 50° C. Then, dimethylsulfuric acid (25.2 g) was dropped at 50° C. over 2 hours. The mixture was stirred at 50° C. for 30 minutes, 60° C. for 2 hours and 70° C. for 4 hours, successively. After water (250 g) was added, the solution was stirred for 1 hour, while being maintained at 50° C. Then, the same procedure as in Example 3 was applied to obtain, after xylene was recovered, N-acetyl-1-methylaminoanthraquinone (27.7 g, purity 92.4%, yield 91.7%).

1. stirringThe mixture was stirred at 50° C. for 30 minutes, 60° C. for 2 hours and 70° C. for 4 hours
2. stirringthe solution was stirred for 1 hour
3. temperaturewhile being maintained at 50° C
4. customto obtain
5. customafter xylene was recovered