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[1]刘安昌,余彩虹,张树康,等.新型杀虫剂双三氟脲的合成[J].武汉工程大学学报,2015,37(01):11-13.[doi:10. 3969/j. issn. 1674-2869. 2015. 01. 003]
 ,,et al.Synthetic process of novel pesticides Bistrifluron[J].Journal of Wuhan Institute of Technology,2015,37(01):11-13.[doi:10. 3969/j. issn. 1674-2869. 2015. 01. 003]
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新型杀虫剂双三氟脲的合成(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年01期
页码:
11-13
栏目:
化学与化学工程
出版日期:
2015-01-31

文章信息/Info

Title:
Synthetic process of novel pesticides Bistrifluron
文章编号:
1674-2869(2015)01-0011-03
作者:
刘安昌12余彩虹12张树康12冯佳丽12贺晓露12
1.绿色化工过程教育部重点实验室(武汉工程大学),湖北 武汉 430074;  2.武汉工程大学化学与环境工程学院,湖北 武汉 430074
Author(s):
LIU An-chang12 YU Cai-hong12 ZHANG Shu-kang12 FENG Jia-li12 HE Xiao-lu12
1. Key Laboratory of Green Chemical Process(Wuhan Institute of Technology),Ministry of Education,Wuhan 430074,China;  2. School of Chemistry and Environment, Wuhan Institute of Technology, Wuhan 430074,China
关键词:
杀虫剂双三氟虫脲合成
Keywords:
pesticides bistrifluron synthesis
分类号:
TQ460.3
DOI:
10. 3969/j. issn. 1674-2869. 2015. 01. 003
文献标志码:
A
摘要:
以间二三氟甲苯为起始原料,经发烟硝酸和浓硫酸硝化,铁粉还原和氯气氯化得到2-氯-3,5-二三氟甲基苯胺;2,6-二氟苯腈经质量分数30%的过氧化氢和质量分数5%的氢氧化钠溶液水解得到2,6-二氟苯甲酰胺,然后在二氯乙烷溶剂中与草酰氯反应得到2,6-二氟苯甲酰异氰酸酯. 在室温条件下,2-氯-3,5-二三氟甲基苯胺与2,6-二氟苯甲酰异氰酸酯在甲苯溶剂中反应得到目的产物双三氟虫脲,收率为93.5%. 经1H-核磁共振鉴定,产品结构与双三氟虫脲的结构一致. 该工艺简单经济、条件温和,适合工业化生产.
Abstract:
3,5-Bis-(trifluoromethyl)benzene was nitrated by a fuming nitric-sulfuric acid, and then reduced with iron powder and hydrochloric to the 3,5-bis-(trifluoromethy)-aniline. 3,5-bis-(trifluoromethy)-aniline was chlorinated by chloride gas to give 2-chloro-3,5-bis-(trifluoromethyl)aniline. 2,6-Difluorobenzamide was synthesized from 2,6-difluorobenzonitrile via hydrolysis with solution of 30% hydrogen peroxide and 5% sodium hydrate,Then it reacted with oxalyl chloride in the solution of dichloro ethane to give the 2,6-difluorobenzoyl isocyanate. The title compound bistrifluron which exhibited potent growth-retarding activity against pests were prepared by treatment of 2,6-difluorobenzoyl isocyanate with 2-chloro-3,5-bis(trifluoromethyl)aniline in toluene and its yield is 93.5%. Finally, the bistrifluron was identified by 1H-NMR. This process is feasible for industrial production.

参考文献/References:

[1] YOON Chang-mann, YANG Jeong-oh, KANG Shin-ho, et al. Insecticidal properties of bistrifluron against sycamore lace bug, corythuchaciliate (Hemiptera:Tingidae)[J]. J Pestic Sci, 2008, 33 (1): 44–50.  [2] MOON J K, KIM J H, RHEE S K. Structural Investigation of Bistrifluron[J]. Bull Korean Chem Soc, 2002, 23(11): 1545-1547.  [3] OLAH G A. Nitration of strongly deactivated aromatics with superacidic mixed nitric-triflatoboric acid (HNO3/2CF3SO3H-B(O3SCF3)3)[J]. Journal of Organic Chemistry, 1995,60(22): 7348-7350.   [4] YAN Shun-qi. Isothiazoles as active-site inhibitors of HCV NS5B polymerase[J]. Bioorganic & Medicinal Chemistry Letters, 2007,17(1): 28-33.   [5] 林 军,严胜骄,杨丽娟,等. 多卤代苯甲酰基脲类几丁质抑制剂的合成及杀虫活性[J].有机化学,2005,25(3):304-307.  LIN Jun, YAN Sheng-jiao,YANG Li-juan ,et al. Synthesis and insecticidal activities of novel polyhalo benzoylphenylurea derivatives[J]. Chinese Journal of Organic Chemistry,2005,25(3):304-307.(in Chinese)  [6] KIM Jung-ho, SHIN Yong-woo, HEO Jungn-young, et al. Preparation of 2-chloro-3,5-bis(trifluoromethyl)phenyl benzoyl ureas as pesticides :WO, 9800395[P].1998-08-01.

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备注/Memo

备注/Memo:
收稿日期:2014-12-31  作者简介:刘安昌(1964-),男,江西吉安人,教授,博士. 研究方向:精细有机合成.  
更新日期/Last Update: 2015-03-21