| 第 36 卷第 1 期 |  | Vol. 36 No. 1 | | 2006 年 2 月 | Feb 2006 |
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所屬欄目：農藥及中間體
水相法合成鄰氯苯基硫脲 |
| 許標; 蘭支利; 劉衛東(湖南師范大學(xué); 湖南化工研究院; 湖南長(cháng)沙) |
| 摘 要：以鄰氯苯胺和硫氰酸銨為原料,在水溶液中合成鄰氯苯基硫脲,探討了原料配比、反應溫度、反應時(shí)間對收率的影響。得到優(yōu)惠工藝條件:鄰氯苯胺與硫氰酸銨的配比1 1∶.05(mol/mol),鄰氯苯胺與鹽酸的配比為1∶1.1(mol/mol),反應溫度80℃,反應時(shí)間16h。在此工藝條件下,制得產(chǎn)品的純度為93.9%,收率為90.0%。 |
| 關(guān)鍵詞：鄰氯苯胺; 合成; 鄰氯苯基硫脲 |
| 中圖分類(lèi)號：TQ227 文獻標識碼：A 文章編號：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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