3-氟甲苯选择性硝化工艺的研究

Study on the Selectivity Nitration of 3-fluorotoluene

以3-氟甲苯为原料,通过对乙酸酐-浓硝酸和浓硝酸-浓硫酸两种不同的硝化途径以及对其硝化条件的研究,找到了一种提高产物3-氟-4-硝基甲苯选择性的硝化工艺。

3 - fluoro - 4 - nitrotoluene was prepared from 3 - fluorotoluene by two nitration processes （ CH3 CO）20 and concentrated HN03 ,mixed acid of HNO3 - H2 SO4 ,also nitration factors were investigated. A nitration prooms that improved 3- fluoro- 4- nitrotoluene selectivity was found out.