| abstract |
The invention discloses a kind of method that green nitration technology prepares 2,4 dinitrofluorobenzene.This method is using dinitrogen pentoxide/nitric acid as nitrification system, using parachloronitrobenzene as raw material, prepares 2,4 dinitrofluorobenzene.When parachloronitrobenzene is 5 grams, the reaction time is 70 minutes, and reaction temperature is 50 DEG C, and dinitrogen pentoxide concentration is 0.3 grams per milliliter (3 grams of dinitrogen pentoxide, 10 milliliters of nitric acid), now, and the yield of 2,4 dinitrofluorobenzene is 96.73%, purity 100%. |