有机中间产品3,5-二氯硝基苯合成条件的研究  

Study on the Synthetic Conditions of Intermediate Product of 3,5-dichlorobenzene

作　　者：杨秋菊[1] 孔凡茂[1] 

机构地区：[1]淄博职业学院化工系,山东淄博255314

出　　处：《四川化工》2011年第5期1-4,共4页Sichuan Chemical Industry

摘　　要：研究了以2,6-二氯-4-硝基苯胺为原料,合成3,5-二氯苯胺的中间体3,5-二氯硝基苯的工艺条件。通过实验讨论了硫酸用量、乙醇用量、反应温度、时间、催化剂等各种因素对产品产率的影响,确定了最佳合成条件。结果表明:在最佳合成条件下,得到的产品收率可达79.6%。2,6-dichloro-4-nitroaniline is diazotized and deaminated to give 3,5-dichlorobenzene which is in- terrnediate product of 3,5-dichloroaniline. Many factors which affect the reactions, such as amounts and concentration of sulfuric acid, reaction temperature and time and catalysts have been studied and been optioned. It optimizes conditions for the synthesis of 3,5-dichloroaniline and indicate that the yield of 3,5-die- hlorobenzene can be increased to 79.6% in the optimum synthesis conditions.

关 键 词：2 6-二氯-4-硝基苯胺3 5-二氯硝基苯 重氮化 

分 类 号：TQ246.1[化学工程—有机化工]