2,4-二氯苯甲醛合成  

Synthesis of 2,4-Dichlorobenzaldehyde

作　　者：陈宗化 邢华[1] 

机构地区：[1]江苏安邦电化有限公司,江苏淮安223002

出　　处：《现代农药》2005年第4期12-13,19,共3页MODERN AGROCHEMICALS

摘　　要：2,4-二氯苯甲醛是杀菌剂烯唑醇等农药品种的有机中间体。以3-氯-4-甲基苯胺为起始原料,经重氮化反应、桑德迈尔反应、侧链氯化、水解等4步反应,合成2,4-二氯苯甲醛,总收率为75%(以3-氯-4-甲基苯胺计),产品质量≥99%。2,4-Dichlorobenzaldehyde is an organic intermediate of fungicide diniconazole. In this article, 3-chloro-4-methyl aniline is used as initial material, and 2,4-dichlorobenzaldehyde is synthesized through 4 steps of diazotization, sandmeyer reaction, chlorination and hydrolysis. The yield is 75% （calculated as 3-chloro-4-methyl aniline） and the purity of product is 99%。

关 键 词：2 4一二氯苯甲醛 烯唑醇 水解 合成 

分 类 号：TQ455.4[化学工程—农药化工]