第 49 卷第 2 期Vol. 49 No. 2
2019 年 4 月Apr 2019

所属栏目:农药及中间体

光气法合成水杨腈的研究
过学军,刘长庆,徐小兵,黄显超,李红卫 (安徽广信农化股份有限公司,安徽 广德 242200)
摘 要:以水杨酰胺为原料,通过与光气直接高温回流反应得到水杨腈,并通过气相色谱确定了水杨腈含量大于98%,水杨酸胺等杂质残留在0.5%以下。反应具有选择性好、收率高 、副产物少、后处理简单等优点,为下游产品嘧菌酯合成提供了质量保证。
关键词:水杨酰胺;光气法;水杨腈
中图分类号:TQ246.7  文献标识码:A  文章编号:1009-9212(2019)02-0016-03
Synthesis of Salicylnitrile by Phosgene Method
GUO Xue-jun, LIU Chang-qing, XU Xiao-bing, HUANG Xian-chao, LI hong-wei (Anhui Guangxin Agrochemical Co., Ltd., Guangde 242200, China)
Abstract:Salicylnitrile was synthesized from the reaction of salicylamide with phosgene under reflux at high temperature. The purity of salicylnitrile synthesized from this method was above 98% and the impurity residue was below 0.5% analyzed using gas chromatography. This method has many advantages including good selectivity, high yield, few by-products and simple post-treatment. It provides high quality assurance for the synthesis of pyrimethyl ester.
Key words:salicylamide; phosgene method; salicylicylnitrile
作者简介:过学军(1969-),男,江苏无锡人,工程师,主要从事化工工艺和化工安全研究工作(E-mail:xuejun7188@126.com)。
收稿日期:2018-12-03