反应详情

Trimethoxybenzene (100 g, 0.594 mol) was dissolved in AcOH (220 mL) and stirred while adding 70% HNO3 (69 mL, 1.088 mol) over 20 min. The temperature was kept at 70° C. by cooling as necessary in a water bath. The cooling bath was removed after addition and the mixture remained at 65° C. for several min before cooling. Ice/water was added to precipitate a solid product which was washed well with water. 1M NaOH (500 mL) was added and stirred with the solid for 5 min. The solid was collected, washed with water until the washings were colorless and dried in air, giving 3,4,5-trimethoxynitrobenzene as pale yellow needles.

1. customwas kept at 70° C.
2. temperatureby cooling as necessary in a water bath
3. customThe cooling bath was removed
4. additionafter addition
5. customremained at 65° C. for several min
6. temperaturebefore cooling
7. additionIce/water was added
8. customto precipitate a solid product which
9. washwas washed well with water
10. addition1M NaOH (500 mL) was added
11. stirringstirred with the solid for 5 min
12. customThe solid was collected
13. washwashed with water until the washings
14. customdried in air