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Use of indole ring-based pyrazole amide compounds as agricultural fungicides

A technology of pyrazole amide and compound, applied in the field of agricultural fungicides, can solve problems such as application that have not been reported in literature

Inactive Publication Date: 2016-06-29
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The indole structure of the present invention is introduced into pyrazole amide compounds as the application of agricultural fungicides and there is no literature report

Method used

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  • Use of indole ring-based pyrazole amide compounds as agricultural fungicides
  • Use of indole ring-based pyrazole amide compounds as agricultural fungicides
  • Use of indole ring-based pyrazole amide compounds as agricultural fungicides

Examples

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Embodiment Construction

[0056] Below, the present invention is further described in conjunction with specific examples. All raw materials are commercially available unless otherwise specified.

[0057] Synthetic example

[0058] One, the preparation method of intermediate 4

[0059] 1) Preparation of ethyl propionyl acetonate

[0060]

[0061] Add 50 mL of absolute ethanol to a 250 mL three-necked flask, add 6.25 g (270 mmol) of sodium metal in batches, and heat to reflux. After the sodium has completely reacted, distill off the ethanol to obtain sodium ethylate, then add 40 mL of anhydrous toluene to it, and cool down to 0°C, then dropwise add a mixture of 34mL (250mmol) of diethyl oxalate and 22.5mL (250mmol) of butanone. After the reaction of diethyl oxalate is complete, stop the reaction. The obtained brown liquid was slowly poured into a mixture of 7.5mL of concentrated sulfuric acid and ice for pickling, extracted with ether, dried over anhydrous sodium sulfate, and subjected to vacuum d...

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Abstract

The invention discloses an application of a pyrazole amide compound as shown in the general formula in the specification that is used as an agricultural fungicide. The compound provided by the invention has a broad-spectrum bactericidal activity, has a certain control effect on Botrytis pathogen, rice blast pathogen, phomopasis asparagi pathogen, eggplant phytophthora fruit rot pathogen and phytophthora capsici, especially has a good effect on Botrytis cinerea, and has good practical application value. The invention belongs to the field of agricultural fungicides.

Description

technical field [0001] The invention relates to a pyrazole amide compound, in particular to a pyrazole amide compound based on an indole ring and its use as an agricultural fungicide. It belongs to the field of agricultural fungicides. Background technique [0002] Chemical control is the main technical means of crop disease control. Organic synthetic fungicides are the main part of the current agricultural fungicides and an important part of the modern pesticide industry. However, with the extensive use of organic synthetic fungicides, crop pathogens have shown different levels of drug resistance or resistance. In order to solve this problem, it is a continuous problem faced by the pesticide industry to continuously develop various new fungicides. [0003] Since benomyl was discovered in 1968 to have excellent properties of preventing and controlling fungal diseases, the bactericidal properties of benzimidazole compounds have attracted the close attention of major pestic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D403/12A01N43/56A01P3/00
CPCA01N43/56C07D403/12
Inventor 黄家兴解晓平周君仪
Owner CHINA AGRI UNIV
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