Application of a kind of diaryl pentane compound in herbicide

A technology of diarylpentane and arylpentane is applied in the application field of diarylpentane compounds in herbicides to achieve the effect of growth inhibition

Active Publication Date: 2021-07-23
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no relevant literature report on whether the compounds shown above have phytotoxic activity; that is to say, whether the compounds can be developed into herbicides is still a research blank in this field

Method used

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  • Application of a kind of diaryl pentane compound in herbicide
  • Application of a kind of diaryl pentane compound in herbicide
  • Application of a kind of diaryl pentane compound in herbicide

Examples

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Embodiment

[0031] (1) Preparation method of compound 1

[0032] The present invention has no special limitation on the preparation method of the compound 1, which can be prepared by conventional preparation methods known in the art. In the embodiment of the present invention, the preparation method is preferably as follows:

[0033] Dried chamaejasma root (10kg) was cut and pulverized and leached three times with 95% ethanol (20 liters each time), the extracts were combined and concentrated under reduced pressure to obtain the extract; the above extract was suspended in 4 liters of alkaline water ( PH=10-12) water, extracted 5 times with chloroform (1 L each time), concentrated under reduced pressure to obtain chloroform extract (122 g). The chloroform extract was passed through a silica gel column (silica gel 200-300 mesh, the same below), and carried out gradient elution with an organic solvent (petroleum ether-ethyl acetate 40:1, petroleum ether-ethyl acetate 20:1, petroleum ether-eth...

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PUM

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Abstract

The invention belongs to the technical field of medicinal chemistry, and in particular relates to the application of a diarylpentane compound in the root of Daphne chamaejasma in herbicides. The diarylpentane compound of the present invention is the compound 3-Methoxy-1,5-diphenylpentan-1-one, and the compound has obvious inhibitory effect on the growth of the Elymus root, and can be used as an effective herbicide ingredients to apply. The results of the examples show that the diarylpentane compounds provided by the present invention have a significant inhibitory effect on the growth of Elymus root at a concentration of 10-100 μg / mL.

Description

technical field [0001] The invention belongs to the technical field of medicinal chemistry, and in particular relates to the application of a diarylpentane compound in herbicides. Background technique [0002] Weeds in farmland refer to those herbaceous plants other than crops that grow in the field and on the edge of the field. They survive for a long time by adapting to local crops, cultivation, climate, soil and other ecological conditions and other social factors, and are an integral part of the agricultural ecosystem. . Many weeds have well-developed root systems, strong absorption capacity, fast growth at the seedling stage, and high photosynthetic efficiency, which seriously affect the yield and quality of crops. [0003] Weeds have strong growth ability, and the use of chemical herbicides is one of the main means of controlling weeds. Chemical herbicides are also known as herbicides, and there are more than 400 kinds of chemical herbicides commonly used around the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N35/04A01P13/00
CPCA01N35/04
Inventor 占扎君章春豪应优敏田婷单伟光
Owner ZHEJIANG UNIV OF TECH
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