第 33 卷第 6 期 | | Vol. 33 No. 6 | 2003 年 12 月 | Dec 2003 |
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所属栏目:其它
2-氨基-4-氯-苯并噻唑的合成 |
龙洁; 刘卫东; 徐道庄; 杜升华(湖南化工研究院; 湖南长沙) |
摘 要:以邻氯苯基硫脲和硫酰氯为原料,经环合反应制得2-氨基-4-氯苯并噻唑,收率为94.8%,探讨了溶媒种类、投料比、反应温度和反应时间对收率的影响,并改进了合成工艺。 |
关键词:2-氨基-4-氯苯并噻唑; 硫酰氯; 合成 |
中图分类号:RQ252.5 文献标识码:A 文章编号:1009-9212(2003)06-0031-03 |
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A Study on Synthesis of 2-Amino-4-Chloro-Benzothiazole |
LONG Jie; etc(Hunan Research Institute of Chemical Industry; Changsha Hunan 410007; China) |
Abstract:Amino 4 chloro benzothiazole was prepared from 2 chloro phenyl thiourea and sulfuryl chloride by cyclization in 94.8% yield. The effect of the kinds of solution medias, the proportion of materials, the reaction temperature, and the time on the yield was investigated. The process of synthesis was improved. |
Key words:benzothiazole; synthesis |
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收稿日期:2003-10-21
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