摘要
介绍一种合成2,6 二溴苯胺的新方法.它是用对氨基苯磺酰胺经溴化,得到3,5 二溴 4 氨基苯磺酰胺,并在硫酸存在下水解,得到2,6 二溴苯胺,再经水蒸汽蒸馏,然后用70%乙醇重结晶,得到2,6 二溴苯胺纯品.精品纯度达99.10%,收率可达66.38%.
A new method of preparing 2,6dibromoaniline is introduced. This method applied paminobenzene sulfonamide reacting with bromine to produce 4amino3,5dibromobenzene sulfonamide. 2,6dibomoaniline is obtained through the hydrolysis of 4amino3,5dibromobenzene sulfonamide in H2SO4. And then the pure product is obtained after the purification with vapor distillation and recrystallization in 70% acohol solution. The purity is 99.1%, and the yield is 66.38%.
出处
《吉林化工学院学报》
CAS
2003年第2期28-29,共2页
Journal of Jilin Institute of Chemical Technology
