第 37 卷第 2 期Vol. 37 No. 2
2007 年 4 月Apr 2007

所属栏目:农药及中间体

2-甲硫基-4,6-二氟嘧啶的合成研究
胡智红1,陶贤鉴2,熊莉莉2 (1. 湖南海利化工股份有限公司,湖南 长沙 410007;2. 湖南化工研究院,湖南 长沙 410007)
摘 要:2-甲硫基-4,6-二氟嘧啶是合成除草剂双氯磺草胺的关键中间体,笔者以硫脲、丙二酸二乙酯、甲醇钠、硫酸二甲酯、三氯氧磷、氟化钾等为原料经四步反应合成了该化合物,并对影响反应的主要因素进行了研究。优化了反应条件,简化了操作。产品收率56%,纯度90%。
关键词:除草剂;2-甲硫基-4,6-二氟嘧啶;双氯磺草胺
Synthesis of 2-Methylthio -4,6-difluorin Pyrimidine
HU Zhi-hong1,TAO Xian-jian2,XIONG Li-li2 (1. Hunan Haili Chemical Industy Co., Ltd,Changsha 410007,China;2. Hunan Reseach Institute of Chemistry Instudry,Changsha 410007,China)
Abstract:The compound 2-methylthio-4,6-difluoride pyrimidine was an important intermediate of herbicide diclosulam. 2-methylthio-4,6-difluoride pyrimidine was synthesized through four step veactions from sulfocarbamidediethyl malonate,sodium methanol,dimethyl sulphate,phosphorus oxychloride and potassium fluoride. The major factors that influenced the reactions were studied. The yield and purity of the product was 56% and 90% respectively,suggesting that the synthesis method had advantages of facile reaction conditions convenient operation and cheap reagents.
Key words:herbicide;2-methylthio-4,6-difluorin pyrimidine;diclosulam
作者简介:胡智红(1972-),男,湖南衡山人,工程师,主要从事农药及中间体的合成。(E-mail:zhihonghu2005@yahoo.com.cn)
收稿日期:2006-06-21
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