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Insecticidal Oxime Ether Dichloroallyl Ether Compounds

A technology of dichloroallyl ether and insecticidal activity, applied in the direction of biocides, chemicals for biological control, biocides, etc., to achieve the effect of preventing insects and/or mites from infesting

Active Publication Date: 2011-12-07
HUNAN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many pest control agents on the market, there is still a need for new compounds that are more efficient, safe, economical, and have different modes of action

Method used

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  • Insecticidal Oxime Ether Dichloroallyl Ether Compounds
  • Insecticidal Oxime Ether Dichloroallyl Ether Compounds
  • Insecticidal Oxime Ether Dichloroallyl Ether Compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074]

[0075] Step A: Synthesis of 2-methoxy-4-hydroxy-6-trifluoromethylpyrimidine (01-A)

[0076] Add 1.00 g of cyanamide into a 100 ml three-necked flask with a drying condenser, and add 5.00 g of HCl in methanol while stirring. Slowly raise the temperature to 25-80°C and react for 2-6 hours, cool in an ice-water bath to about 10°C, then add 3.50 g of ethyl trifluoroacetoacetate dropwise, and adjust the pH value to 14 with 20% NaOH solution after the dropwise addition. Control the temperature below 30°C, raise the temperature to reflux after the addition, react for 5 to 6 hours, and desolvate under reduced pressure, add 20 grams of water to adjust the pH to be acidic, until the amount of precipitated solids is the largest, and dry to obtain about 3.0 g of the crude product. Content 96% (HPLC).

[0077] Step B: Synthesis of 2-methoxy-4-chloro-6-trifluoromethylpyrimidine (01-B)

[0078] Add 3.88g (20mmol) 2-methoxy-4-hydroxy-6-trifluoromethylpyrimidine and 9.20g (60mmol...

Embodiment 2

[0088] Preparation of suspending agent: Dilute 2-6% wetting and dispersing agent in 4-10% antifreeze, and slowly add a certain amount of water to the solution, then add in order under high-speed shearing knife stirring 5-80% active compound of formula (I) provided by the present invention, 0.01-0.05% preservative, 0.01-0.05% defoamer and thickener, etc. Finally, it is poured into a sand mill for grinding, and then the solvent is added to volume. It can be diluted with water to any desired concentration when used.

Embodiment 3

[0090] First dilute 5 parts of suitable surfactants such as sodium naphthalenesulfonate formaldehyde condensate and dibutylnaphthalenesulfonate sodium formaldehyde condensate in 5 parts of suitable antifreeze such as ethylene glycol and glycerol, and add to the solution Slowly add water, add 10 parts of active compounds provided by the invention and other suitable additives such as preservatives (benzoic acid or formaldehyde, etc.), defoamers (organosilicone) and thickeners (yellow) under rapid stirring. Original acid gum or carboxymethyl cellulose, etc.), grind it after adding, and finally add the remaining solvent to volume.

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PUM

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Abstract

The invention discloses oxime ether dichloro-allyl ether compounds (shown in a general formula (I)) with insecticidal activity, a preparation method thereof, an insecticide composition containing the compounds and a method for controlling pests by using the compounds, wherein R, R<1>, n and B are defined in the specification.

Description

[0001] This application is a divisional application [0002] The filing date of the original application is: August 12, 2008 [0003] The application number is: 200810032058.9 [0004] The name of the invention is: nitrogen-containing heterocyclic dichloroallyl ether compounds with insecticidal activity technical field [0005] The present invention relates to certain oxime ether dichloroallyl ether compounds with insecticidal biological activity and compositions thereof, methods of using them to control pests in agricultural and non-agricultural environments, and their preparation methods. Background technique [0006] Pest control is very important in achieving efficient agriculture. Also pest control is important in forestry, greenhouse crops, ornamental plants, nursery crops, stored food and fiber products, livestock, household, and public health and animal care. Although there are many pest control agents on the market, there is still a need for new compounds that ar...

Claims

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Application Information

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IPC IPC(8): C07D239/52C07D239/56C07D215/227C07D213/64A01N43/54A01N43/42A01N43/40A01P7/00
Inventor 柳爱平刘兴平黄路裴晖黄明智胡志彬任叶果胡礼喻快刘伟
Owner HUNAN CHEM RES INST
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