| 第 36 卷第 1 期 |  | Vol. 36 No. 1 | | 2006 年 2 月 | Feb 2006 |
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所属栏目：农药及中间体
水相法合成邻氯苯基硫脲 |
| 许标; 兰支利; 刘卫东(湖南师范大学; 湖南化工研究院; 湖南长沙) |
| 摘 要：以邻氯苯胺和硫氰酸铵为原料,在水溶液中合成邻氯苯基硫脲,探讨了原料配比、反应温度、反应时间对收率的影响。得到优惠工艺条件:邻氯苯胺与硫氰酸铵的配比1 1∶.05(mol/mol),邻氯苯胺与盐酸的配比为1∶1.1(mol/mol),反应温度80℃,反应时间16h。在此工艺条件下,制得产品的纯度为93.9%,收率为90.0%。 |
| 关键词：邻氯苯胺; 合成; 邻氯苯基硫脲 |
| 中图分类号：TQ227 文献标识码：A 文章编号：1009-9212(2006)01-0038-02 |
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| A Study on Synthesis of 2-chloro-phenyl-thiourea in Water Solution |
| XU Biao1; LAN Zhi-li1; LIU Wei-dong2（1.Hunan Normal University; Changsha 410001; China; 2.Hunan Research Institute of Chemical Industry; Changsha 410007; China） |
| Abstract：2-Chloro-phenyl-thiourea was prepared from o-chloro-aniline and ammonium thiocyanate with water solution.The effect of the proportion of raw materials,the reaction temperature and the reaction time were investigated.The optimum reaction conditions were determined,i.e.,n(o-chloro-aniline) ∶ n(ammonium thiocyanate)=1 ∶ 1.05,n(o-chloro-aniline) ∶ n(hydrochloric)=1 ∶ 1.1,reaction temperature 80 ℃ and reaction time 16 h.The yield and purity of the product reached 90.0% and 93.9% respectively with the optimal pro... |
| Key words：o-chloro-aniline; synthesis; thiourea; favourable conduction |
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收稿日期：2005-10-30
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