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Sesquiterpenoids as well as preparation method and application thereof

A technology of sesquiterpenoids and compounds, which is applied to sesquiterpenoids and their preparation methods and used in the field of pesticides, can solve the problems of growth and development inhibition of diamondback moth, beet armyworm and Spodoptera litura. The application of new sesquiterpenoid compounds can achieve the effect of antifeeding and inhibiting insect growth, good comprehensive control effect, and stable structure.

Active Publication Date: 2019-12-31
MINZU UNIVERSITY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, there are many studies on the active ingredients and activities of the extract of Artemisia solani, and the understanding of Artemisia solani is only its medical and medical hygienic activity. No new sesquiterpene compounds and their application in antifeedant are found in this patent. There is no research report on growth and development inhibition of diamondback moth, beet armyworm and Spodoptera litura

Method used

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  • Sesquiterpenoids as well as preparation method and application thereof
  • Sesquiterpenoids as well as preparation method and application thereof
  • Sesquiterpenoids as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: the preparation of sesquiterpene novel compound

[0064] 1. Experimental materials:

[0065] 1) medicinal materials

[0066] The Artemisia tomentosa plant was collected from Alxa Left Banner, Alxa League, Inner Mongolia Autonomous Region in August 2017, and was identified as Artemisia vestita Wall.ex Bess, a plant of the genus Artemisia in the family Compositae (scientific name: Artemisia vestita Wall.ex Bess.) by Dr. Wu Haibo, the inventor of the present application.

[0067] 2) Reagents and fillers

[0068] 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; analytical reagents such as petroleum ether, n-hexane, chloroform, ethyl acetate, aceto...

Embodiment 2

[0090] Embodiment 2: the preparation of pesticide preparation

[0091] 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

[0092] Embodiment 3: the preparation of pesticide preparation

[0093] The powder 20% of the obtained compound 2 of embodiment 1, white carbon black 20%, sodium lauryl sulfate 5%, CMC sodium lauryl sulfate 1% and pull apart powder 3%, attapulgite balance, described % 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.

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Abstract

The invention relates to sesquiterpenoids, a preparation method of the sesquiterpenoids and applications of the sesquiterpenoids in pesticides, especially applications of the sesquiterpenoids as antifeedants and / or growth and development inhibitors. The compounds disclosed by the invention have structures represented by formulas 1-4 in the invention, and possess better comprehensive control effecton plutella xylostella, spodoptera exigua and prodenia litura; and green development of protected areas in China and sustainable cultivation of crops with high additional value are facilitated by reducing the use frequency and the use amount of existing chemical pesticides.

Description

technical field [0001] The invention relates to a sesquiterpene compound, a preparation method thereof, and an application in pesticides, especially as an insect repellant and / or an insect growth and development inhibitor. Background technique [0002] Plutella xylostella, beet armyworm and Spodoptera litura are omnivorous agricultural pests that are widely distributed in the world, causing great harm to agriculture, and the abuse of chemical pesticides pollutes land, air and water resources, endangering human beings healthy. In addition, due to the long-term and irrational use of chemical agents in large quantities, the resistance of these agricultural pests has been continuously enhanced, making pest control more difficult. On the one hand, it has also led to further large-scale use of chemical agents, forming a vicious circle. It is estimated that the annual loss caused by pesticides in the world is as high as 100 billion U.S. dollars. With the development of scientific ...

Claims

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Application Information

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IPC IPC(8): C07D307/92C07D307/93A01N43/12A01P7/04
CPCA01N43/12C07D307/92C07D307/93
Inventor 石莎武海波
Owner MINZU UNIVERSITY OF CHINA
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