【摘要】 介绍了一种除草剂—麦草畏的合成方法。以 2 ,5 -二氯苯胺为原料 ,经过重氮化及水解反应生成 2 ,5 -二氯苯酚 ,再经高尔伯 -希密特羧基化反应合成 3,6 -二氯水杨酸 ,最后 ,3,6 -二氯水杨酸与硫酸二甲酯反应得到产物麦草畏。收率约 4 4 .7%。更多还原

【Abstract】 This paper describes the synthesis of herbicide -dicamba.First the 2,5-dichlorophenol was got by the reaction of diazotization of 2,5-dichloroaniline with nitrous acid and hydrolysis,then the 3,6-Dichlorosalicylic acid was got by the reaction of Kolbe,H.-schmitt,R.carboxylation,finally,the herbicide was synthesized by the reaction of 3,6-dichloro-salicylic acid with dimethyl sulfate.The total yield was about 44.7%.更多还原