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[1]刘安昌,包 洋,黄时祥,等.新颖喹啉类杀虫剂Flometoquin的合成[J].武汉工程大学学报,2019,(03):238-241.[doi:10. 3969/j. issn. 1674-2869. 2019. 03. 006]
 LIU Anchang,BAO Yang,HUANG Shixiang,et al.Synthesis of Flometoquin of New Quinoline Insecticide[J].Journal of Wuhan Institute of Technology,2019,(03):238-241.[doi:10. 3969/j. issn. 1674-2869. 2019. 03. 006]
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新颖喹啉类杀虫剂Flometoquin的合成(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2019年03期
页码:
238-241
栏目:
化学与化学工程
出版日期:
2019-06-20

文章信息/Info

Title:
Synthesis of Flometoquin of New Quinoline Insecticide
文章编号:
20190306
作者:
刘安昌包 洋黄时祥李 琪邓 三
武汉工程大学化工与制药学院,湖北 武汉 430205
Author(s):
LIU Anchang BAO Yang HUANG ShixiangLI QiDENG San
School of Chemical and Pharmaceutical Engineering,Wuhan Institute of Technology, Wuhan 430205, China
关键词:
Flometoquin喹啉类杀虫剂合成
Keywords:
Flometoquin quinoline insecticide synthesis
分类号:
TQ460.3
DOI:
10. 3969/j. issn. 1674-2869. 2019. 03. 006
文献标志码:
A
摘要:
在氯化亚铜催化下,4-硝基-2-甲苯胺与亚硝酸钠发生重氮化反应制得2-氯-5-硝基甲苯;在碳酸钾的作用下,2-氯-5-硝基甲苯与对三氟甲氧基苯酚发生醚化反应制得2-甲基-4-硝基-1-(4-(三氟甲氧基)苯氧基)苯,然后经铁粉还原制得中间体3-甲基-4-(4-(三氟甲氧基)苯氧基)苯胺;在对甲苯磺酸的催化下,3-甲基-4-(4-(三氟甲氧基)苯氧基)苯胺与2-甲基-3-氧代戊酸甲酯反应缩合闭环生成2-乙基-3,7-二甲基-6-(4-(三氟甲氧基)苯氧基)喹啉-4-醇;最后,在叔丁醇钾的作用下,2-乙基-3,7-二甲基-6-(4-(三氟甲氧基)苯氧基)喹啉-4-醇与氯甲酸甲酯反应得到目标产物2-乙基-3,7-二甲基-6-(4-(三氟甲氧基)苯氧基)喹啉-4-基2-甲氧基乙酸酯(Flometoquin)。经1H NMR光谱鉴定,产物与Flometoquin结构一致。该合成工艺简单,适合工业化生产。
Abstract:
2-Chloro-5-nitrotoluene was firstly prepared by diazotization reaction of sodium nitrite with 4-nitro-2-toluidine using cuprous chloride as the catalyst. Then it was etherified with p-trifluoromethoxyphenol for synthesis of 2-methyl-4-nitro-1-(4-(trifluoromethoxy)phenoxy)benzene (MNPB) under the action of potassium carbonate. The 3-methyl-4-(4-(trifluoromethoxy)phenoxy)aniline (MPA) was obtained by the reduction of MNPB using iron powder. With the catalysis of p-toluenesulfonic acid,MPA cyclized with methyl 2-methyl-3-oxopentanoate to give ethyl-3,7-dimethyl-6-(4-(trifluoromethoxy) phenoxy)quinolin-4-ol (DPQ). Finally, with the presence of potassium t-butoxide, DPQ reacted with methyl chloroformate to give the target product 2-ethyl-3,7-dimethyl-6-(4-(trifluoromethoxy)phenoxy)quinolin-4-yl methyl carbonate (Flometoquin). Identified by 1H NMR spectroscopy, the structure of the target product is consistent with that of Flometoquin. The process is simple and suitable for industrial production.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-03-15作者简介:刘安昌,博士,教授。 E-mail:lanchang163@163.com引文格式:丁莉莉,包 洋,黄时祥,等. 新颖喹啉类杀虫剂Flometoquin的合成[J]. 武汉工程大学学报,2019,41(3):238-241.
更新日期/Last Update: 2019-06-19