河北科技大学学报2012，Vol.33Issue(1)：20-22,39,4.
1,1-二钾硫基二硝基乙烯的合成
Synthesis of dipotassium salt of 1-nitro-2,2-bismercaptoethylene
李军章 1谷中芳 1孙轩飞1
作者信息
- 1. 河北科技大学化学与制药工程学院,河北石家庄050018
- 折叠
摘要
Abstract
Dipotassium salt of l-nitro-2,2-bismercaptoethylene is the key intermediate which can be used to produce N-methyl-l-methylthio-2-nitroethenamine. The selectivity equations of main and side reactions were developed to analyze the effect of temperature and concentration, and for reducing side-product and enhancing product yield the following improving measures are taken: 1) increasing the temperature from 25 ℃ to 40℃ ; 2)adding CS2 slowly and dropwisely; 3)diluting the concentration of KOH/C2H5OH from 30% to 20%. With adopting new synthesis technology, the product yield increases to over 90%. The new synthesis technology is of potential for industrial-scale production. Current results indicate that, via analyzing the effect of temperature and concentration, then taking correspondent means to adjust and modify the reaction conditions and the feeding fashions, the aim of increasing product yield can be achieved.关键词
1,1-二钾硫基二硝基乙烯/对比选择性方程/合成工艺优化Key words
dipotassium salt of l-nitro-2,2-bismercaptoethylene/ selectivity equation/ optimization of synthesis technology分类
化学化工引用本文复制引用
李军章,谷中芳,孙轩飞..1,1-二钾硫基二硝基乙烯的合成[J].河北科技大学学报,2012,33(1):20-22,39,4.
