邻硝基苯胺氯化及3,5-二氯硝基苯合成  

Chlorination of o-Nitroaniline and Synthesis of 3,5-Dichloronitrobenzene

作　　者：艾庆腾 蒋航 高立江 曹志强 张永胜 王瀚姣 龚斌彬 AI Qingteng;JIANG Hang;Gao Lijiang;CAO Zhiqiang;ZHANG Yongsheng;WANG Hanjiao;GONG Binbin(Zhejiang Runtu Co.,Ltd.,Shaoxing 312000,Zhejiang China)

机构地区：[1]浙江闰土股份有限公司,绍兴312000

出　　处：《染料与染色》2025年第1期16-20,11,I0016,共7页Dyestuffs and Coloration

摘　　要：本文以邻硝基苯胺为原料,采用分段式通气进行氯化,得到2,4-二氯-6-硝基苯胺,产物中控纯度可达95.6%;该产物重氮化后于异丙醇中加热脱去氨基,得3,5-二氯硝基苯,纯度可达到91.8%,收率85.3%。以工业品2,6-二氯-4-硝基苯胺为原料,经重氮化、脱氨基反应同样可以制得3,5-二氯硝基苯,纯度98.7%,收率89.4%。2,4-Dichloro-6-nitroaniline was obtained from o-nitroaniline by staged aeration and chlorination,the purity of the target product in mother solution was 95.6%.3,5-Dichloronitrobenzene was prepared from the sample by diazotization and heating in isopropanol for deamination,the purity was 91.8%and the yield was 85.3%.3,5-Dichloronitrobenzene also could be prepared from industrial product 2,6-dichloro-4-nitroaniline by diazotization and heating in isopropanol for deamination,the purity was 98.7%and the yield was 89.4%.

关 键 词：3 5-二氯-硝基苯 邻硝基苯胺 氯化 重氮化 脱氨基 

分 类 号：TQ612.1[化学工程—精细化工]