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新型除草剂氟丁酰草胺的合成研究
引用本文:刘安昌,沈乔,周青,姚珊,陈涣友.新型除草剂氟丁酰草胺的合成研究[J].现代农药,2012,11(2):21-22,27.
作者姓名:刘安昌  沈乔  周青  姚珊  陈涣友
作者单位:武汉工程大学绿色化工过程省部共建教育部重点实验室,湖北省新型反应器与绿色化学工艺重点实验室,武汉430074
摘    要:以邻氟三氟甲苯等为初始原料,经硝化、还原、重氮化、水解得到4-氟-3-三氟甲基苯酚,然后与烷基化剂2-溴丁酸乙酯反应,得到2-(4-氟-3-三氟甲基苯氧基)丁酸乙酯,再与苄胺发生酰化反应,得到目标产物氟丁酰草胺,总收率52.3%。

关 键 词:氟丁酰草胺  除草剂  合成

Synthetic Process of Novel Herbicide Beflubutamid
LIU An-chang , SHEN Qiao , ZHOU Qing , YAO Shan , CHEN Huan-you.Synthetic Process of Novel Herbicide Beflubutamid[J].Modern Agrochemicals,2012,11(2):21-22,27.
Authors:LIU An-chang  SHEN Qiao  ZHOU Qing  YAO Shan  CHEN Huan-you
Affiliation:(Hubei Novel Reactor & Green Chemical Technology Key Laboratory,Key Laboratory for Green Chemical Process of Ministry of Education,Wuhan Institute of Technology,Wuhan 430074,China)
Abstract:4-Fluoro-3-trifluoromethylnitrobenzene was synthesized by nitrification reaction of 2-fluorobenzotrifluoride using sulfuric acid and nitric acid,then it was reduced by hydrazine hydrate to give 4-fluoro-3-trifluoromethylaniline.In the solution of concentrated H2SO4,4-fluoro-3-trifluoromethylaniline was diazotized and hydrolyzed to give 4-fluoro-3-trifluoromethylphenol.Ethyl 2-bromobutyrate reacted with 4-fluoro-3-trifluoromethylphenol to give ethyl 2-(4-fluoro-3-trifluoromethylphenoxy) butyrate,then it reacted with benzylamine to give the target compound beflubutamid.The total yield is 52.3%.
Keywords:beflubutamid  herbicide  synthesis
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