3,4-二氯苯酚的合成新工艺研究  

Study on Novel Synthesis of 3,4-Dichlorophenol

作　　者：庄文明 朱孔杰 张营 

机构地区：[1]金正大生态工程集团股份有限公司,山东临沭276700 [2]农业部植物营养与新型肥料创制重点实验室,山东临沭276700

出　　处：《山东化工》2016年第3期28-29,31,共3页Shandong Chemical Industry

摘　　要：3,4-二氯苯酚是一种重要的精细化工中间体,以邻二氯苯为原料,经过硝化、催化氢化、重氮化-水解反应得到终产品,经1HNMR确证其结构。实验对反应物配比、反应时间和温度等因素进行了研究,合成方法简单易行,适合工业化生产,总收率达74.5%,纯度98.33%。3,4 - diehlorophenol is an important intem ediate of synthesizing many fineehemieal products. It was synthesized from 1,2 -dichlorobenzene via nitration, catalytic hydrogenation, diazotization hydrolysis reaction. The structure was confirmed by 1 HNMR. The affecting factors including the ratio of the raw materials , the reaction time and the temperature were investigated. Synthesis method is simple and suitable for production. The overall yield was 74.5% with a purity of

关 键 词：3 4-二氯苯酚 加氢还原 3 4-二氯苯胺 重氮化-水解 

分 类 号：TQ243.12[化学工程—有机化工]