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Cyanopyridine-containing dichloropropene ether compound, preparation method and application thereof, and insecticide

A technology of dichloropropene ethers and cyanopyridines, applied to ether compounds and the aforementioned cyano group-containing fields, can solve problems such as poor insecticidal effect, achieve excellent insecticidal effect, excellent pest control effect, and broad-spectrum Good results

Pending Publication Date: 2020-07-28
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the defect that the dihalogenated allyl ether compounds disclosed in the prior art have poor insecticidal effect on the stem borer, and provide a cyano-containing compound with good pest control effect and good broad-spectrum property. Dichloropropene ethers of pyridine

Method used

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  • Cyanopyridine-containing dichloropropene ether compound, preparation method and application thereof, and insecticide
  • Cyanopyridine-containing dichloropropene ether compound, preparation method and application thereof, and insecticide
  • Cyanopyridine-containing dichloropropene ether compound, preparation method and application thereof, and insecticide

Examples

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preparation example

[0069] Step A: Preparation of 4-(3,3-dichloroallyloxy)phenol

[0070] Dissolve hydroquinone (900mmol) in 300mL anhydrous acetone, add anhydrous potassium carbonate (450mmol) in batches, mechanically stir and heat to reflux temperature, then slowly add 1,1,3-trichloropropene (300mmol) ) 100mL of acetone solution, after the addition is complete, continue to react at reflux temperature, and TLC detects that the reaction is complete after about 8 hours. After the reaction solution is cooled, potassium carbonate is filtered out, and the filtrate is directly added with silica gel to mix the sample, and the product obtained by column chromatography is 42.7 g of brown solid, with a yield of 65%.

[0071] Step B: Preparation of 2,6-dichloro-4-(3,3-dichloroallyloxy)phenol

[0072] To the 200mL toluene solution with 4-(3,3-dichloroallyloxy)phenol (182.6mmol) dissolved in 200mL, add 0.4g of diethylamine, configure the condenser reflux tube and exhaust gas absorption device, stir and heat to At...

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Abstract

The invention relates to the field of pesticides, and discloses a cyanopyridine-containing dichloropropene ether compound, a preparation method and an application thereof, and a pesticide. The compound has a structure as shown in the formula (1). The cyanopyridine-containing dichloropropene ether compound provided by the invention has an excellent pest control effect, and has the advantage of goodbroad spectrum compared with the prior art. Particularly, the cyanopyridine-containing dichloropropene ether compound provided by the invention has a more remarkable effect in preventing and controlling lepidoptera and thysanoptera pests compared with a medicament provided in the prior art.

Description

Technical field [0001] The invention relates to the field of pesticides and insecticides, in particular to a cyanopyridine-containing dichloropropenyl ether compound, a method for preparing a cyanopyridine-containing dichloropropenyl ether compound, and a cyano-containing compound prepared by the method The application of dichloropropenyl ether compounds of pyridine and the aforementioned cyanopyridine-containing dichloropropenyl ether compounds in the control of Lepidoptera and Thysanoptera pests and an insecticide. Background technique [0002] Since the 1870s, organophosphorus, carbamates, pyrethroids and neonicotinoid insecticides have been the mainstream products in the agricultural insecticide market. Due to the limitations and long-term characteristics of these insecticides The serious resistance problem caused by the large-scale use has forced people to find new pest management strategies. Especially since 2007, my country has completely banned the use of five highly toxic...

Claims

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Application Information

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IPC IPC(8): C07D213/85A01N43/40A01P7/04
CPCC07D213/85A01N43/40
Inventor 杨光富吴琼友朱小慧王震宇
Owner HUAZHONG NORMAL UNIV
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