N_甲氧基_N_2_甲基苯基氨基甲酸甲酯的合成工艺研究.pdfVIP

31 1 ( ) Vol.31, No. 1 2 0 0 4 2 Journal of Hunan University(Natural Sciences) Feb 2 0 0 4 : 2004 NN2 1 1 2 李仲英 ,李江胜 , 刘卫东 ( 1. , 410082; 2. , 410007) : 对以邻硝基甲苯为主要原料, 经锌粉氯化铵溶液还原氯甲酸甲酯 基化硫 酸二甲酯甲基化合成N甲氧基N2甲基苯基氨基甲酸甲酯的工艺路线进行了研究. 重点 考察了还原反应中溶剂种类还原温度对反应的影响以及N羟基N2甲苯氨基甲酸甲酯 的纯化方法. N羟基N2甲苯基氨基甲酸甲酯N甲氧基N2甲苯基氨基甲酸甲酯均经 1 MS, H NMR 确认. :合成; 邻硝基甲苯; 邻甲基苯基羟胺;N甲氧基N2甲基苯基氨基甲酸甲酯 :O623732 :A Synthesis of Methyl N ethoxylN2 ethylphenylcarba ate 1 1 2 LI Zhongying , LI Jiangsheng , LIU Weidong ( 1.College of Che istry and Che ical Engineering, Hunan Univ, Changsha 410082,China; 2.Hunan Research Institute of Che ical Industry, Changsha 410007, China) Abstract: This paper studied the process for synthesizing ethyl N ethoxylN2 ethylphenylcarba ate fro onitrotoluene by reduction,acetation and ethylation. This paper also investigated the effects of different solvents and te peratures on the reducing reaction and purification of ethyl NhydroxylN2 ethylphenylcarba ate. Further ore, ethyl NhydroxyN2 ethylphenylcarba ate and ethyl N 1 ethoxylN2 ethylphenylcarba ate were confir ed by MS and H NMR respectively. Key words: synthesis; onitrotoluene; N2 ethylphenylhydroxya ine; ethyl N ethoxylN2 ethylphenylcarba ate NN(2) ( ) [ 2] , . , [ 1] (pyraclostrobin) ,. , ( ) .ASHUTOSH H , [ 5]