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[1]蔡 念,吴有斌,唐满仓,等.杀螨隆的合成[J].武汉工程大学学报,2016,38(05):415-418.[doi:10. 3969/j. issn. 1674?2869. 2016. 05. 001]
 CAI Nian,WU Youbin,TANG Mancang,et al.Synthesis of Diafenthiuron[J].Journal of Wuhan Institute of Technology,2016,38(05):415-418.[doi:10. 3969/j. issn. 1674?2869. 2016. 05. 001]
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杀螨隆的合成(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
38
期数:
2016年05期
页码:
415-418
栏目:
化学与化学工程
出版日期:
2016-11-02

文章信息/Info

Title:
Synthesis of Diafenthiuron
作者:
蔡 念1吴有斌1唐满仓2叶龙江2巨修练1*
1. 武汉工程大学化工与制药学院,湖北 武汉 430074;2. 陕西横田化工有限公司,陕西 西安 714000
Author(s):
CAI Nian1 WU Youbin1 TANG Mancang2 YE Longjiang2 JU Xiulian1*
1. School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430074,China; 2. Shanxi Hengtian Chem-Tech Co., LTD, Xi’an 714000, China
关键词:
杀螨隆杀虫杀螨剂硫脲 合成
Keywords:
diafenthiuron insecticide and acaricide dithiocarbamate synthesis
分类号:
TQ460.6
DOI:
10. 3969/j. issn. 1674?2869. 2016. 05. 001
文献标志码:
A
摘要:
研发了一条经济、安全的杀螨隆合成工艺. 以2,6-二异丙基苯胺为起始原料,在酸性条件下经溴素溴化,然后在碱性条件下与苯酚发生醚化得到中间体2,6-二异丙基-4-苯氧基苯胺,2,6-二异丙基-3-苯氧基苯胺用硫氢化钠进行硫脲化后加热至150 ℃进行热分解脱氨,得到4-苯氧基-2,6-二异丙基苯基异硫氰酸酯,最后4-苯氧基-2,6-二异丙基苯基异硫氰酸酯与叔丁胺缩合合成了高效,低毒,安全的杀虫杀螨剂—杀螨隆(1-叔丁基-3-(2,6-二异丙基-4-苯氧基苯基)硫脲),经高效液相检测,纯度为97.5%,以2,6-二异丙基苯胺计总收率55.6%. 该方法原料易得,操作过程易控,排放量少,产品纯度高,并已投入工业化生产.
Abstract:
An efficient and safe process of diafenthiuron was completed. Firstly, 2,6-diisopropyl aniline was brominated in acidic conditions, and then it reacted with phenol under basic conditions to get intermediate of 2,6-diisopropyl-4-phenoxyaniline. Secondly, the obtained intermediate was thioureaed with sodium thiocyanate and then was pyrolysed at 150 ℃ to obtain 4-phenoxy-2,6-diisopropylphenyl isothiocyanate. Finally, the high efficiency, low toxicity and safe diafenthiuron [1-t-butyl-3-(2,6-diisopropyl-4-phenoxyphenyl)-dithiocarbamate] was prepared via 4-phenoxy-2,6-diisopropylphenyl isothiocyanate condensing with t-butylamine. The total yield that calculated by 2,6-diisopropyl aniline was 55.6% and its purity reached 97.5% by the high performance liquid chromatography. This method has advantages of easily available raw materials, simple operation, less emission and high purity. It has been applied to large scale production.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016-04-18作者简介:蔡 念,硕士研究生. E-mail:xiaocai0808@126.com*通讯作者:巨修练,博士,教授. E-mail: xiulianju2008@aliyun.com
更新日期/Last Update: 2016-10-31