Monoalkyne compounds and their preparation and use

An acetylenic compound and the technology of the compound are applied in the field of controlling root-knot nematodes and soil-borne pathogenic fungi, and can solve the problem that no single-acetylene compound root-knot nematodes and soil-borne pathogenic fungi control research reports and no Absinthe wormwood have been seen. Extract research reports and other issues, to achieve good nematode and inhibition of plant soil-borne pathogenic fungi, stable structure, easy to degrade effects

Inactive Publication Date: 2020-09-04
MINZU UNIVERSITY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] At present, there are many studies on the active components and activities of the leaf extract of wormwood, and the understanding of wormwood is only its medical and medical hygiene activities, and there is no report on the study of the root extract of wormwood. There is no research report on the prevention and control of monoacetylenic compounds to root-knot nematodes and soil-borne pathogenic fungi in this patent

Method used

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  • Monoalkyne compounds and their preparation and use
  • Monoalkyne compounds and their preparation and use
  • Monoalkyne compounds and their preparation and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: the preparation of monoalkyne compound

[0052] 1. Experimental materials:

[0053] 1) medicinal materials

[0054] The roots of wormwood were collected from Xinjiang Province in August 2016, and were identified as the dried roots of wormwood of the genus Artemisia in the family Asteraceae by Dr. Wu Haibo, the inventor of the present application.

[0055] 2) Reagents and fillers

[0056] Thin-layer chromatography silica gel GF254 (chemically pure) was purchased from Qingdao Haiyang Silica Gel Desiccant Factory; column chromatography silica gel, 200-300 mesh (reagent grade), was purchased from Qingdao Haiyang Silica Gel Desiccant Factory; Yantai Jiangyou Silica Gel Development Co., Ltd.; Sephadex LH-20 dextran gel, purchased from Amersham, Sweden; petroleum ether, n-hexane, chloroform, ethyl acetate, acetone, methanol and other analytical reagents, purchased in Beijing chemical plant.

[0057] 3) Experimental equipment

[0058] Bruker-AVIIIHD-600 nucle...

Embodiment 2

[0072] Embodiment 2: the preparation of pesticide preparation

[0073] 20% of the powder of compound 1 obtained in Example 1, 20% of white carbon black, 5% of sodium lauryl sulfate, 1% of CMC sodium lauryl sulfate and 3% of pulling powder, the balance of attapulgite, the % is based on the total weight of the pesticide formulation. Mix the above raw materials evenly, control the processing temperature at 0-50°C, and grind them to more than 150 mesh in a jet mill or other high-mesh mills, control the moisture at 6-8% (mass percentage), and control the pH at 7 -7.5. A 20% wettable powder of the compound represented by the formula (1) can be obtained. The water dispersibility, diluent stability, and cold and hot storage stability of the preparation meet the requirements of commercial pesticide preparations.

Embodiment 3

[0074] Embodiment 3: the preparation of pesticide preparation

[0075]20% of the powder of Compound 2 obtained in Example 1, 20% of white carbon black, 5% of sodium lauryl sulfate, 1% of CMC sodium lauryl sulfate, 3% of pull-off powder, and the balance of attapulgite. Mix the above raw materials evenly, control the processing temperature at 0-50°C, and grind them to more than 150 mesh in a jet mill or other high-mesh mills, control the moisture at 6-8% (mass percentage), and control the pH at 7 -7.5. A 20% wettable powder of the compound represented by the formula (1) can be obtained. The water dispersibility, diluent stability, and cold and hot storage stability of the preparation meet the requirements of commercial pesticide preparations.

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Abstract

The invention relates to monoalkyne compounds, and a preparation method and a use thereof in pesticides, and in particular, relates to a use in prevention and control of root knot nematodes and soil borne pathogenic fungi. The compounds have the structure represented by the formula (1); the compounds have a good comprehensive control effect on plant soil borne pathogens (root knot nematodes and soil borne pathogens). By reducing the times and dosage of conventional chemical pesticide nematicides and bactericide respectively, the monoalkyne compounds are helpful for green development of a protected area and sustainable cultivation of high value-added crops in China.

Description

technical field [0001] The invention relates to a monoacetylenic compound, a preparation method thereof, and an application for pesticides, especially for controlling root-knot nematodes and soil-borne pathogenic fungi. Background technique [0002] In the past 20 years, the development of protected areas and the cultivation of high value-added crops have greatly increased farmers' income and realized the transformation from traditional agriculture to modern agriculture. With the development of protected areas and the continuous cultivation of high value-added crops, the accumulation of plant pathogens and insect eggs in the soil will cause devastating soil-borne diseases such as root-knot nematode and wilt, root rot, Verticillium wilt, bacterial wilt It occurs year after year and gets worse year by year. Usually after 3-5 years of planting, the crop yield and quality are seriously affected, generally resulting in a 20%-40% reduction in production, and a serious reduction of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D333/16A01N43/10A01P3/00A01P5/00
CPCA01N43/10C07D333/16Y02P20/54
Inventor 武海波石莎
Owner MINZU UNIVERSITY OF CHINA
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