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Halogen coumarins derivative, harpacticoida insecticide, and preparation method and application thereof

A technology of coumarins and derivatives, applied in the direction of botany equipment and methods, applications, pesticides, etc., can solve the problems of not adapting to large-scale cultivation of large water volume, threatening human food safety, pollution of breeding water environment, etc. , to achieve excellent biological activity and safety, easy access, and broad market prospects

Active Publication Date: 2017-06-13
DALIAN HAIBAO FISHERY
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Problems solved by technology

All there are deficiencies in the above two methods: the first method not only has high production cost, but also does not adapt to the large-scale cultivation of seedlings to the large water requirement for aquaculture water; , shrimp, crab, etc. cause serious pollution to the aquaculture water environment, threatening human food safety

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  • Halogen coumarins derivative, harpacticoida insecticide, and preparation method and application thereof
  • Halogen coumarins derivative, harpacticoida insecticide, and preparation method and application thereof
  • Halogen coumarins derivative, harpacticoida insecticide, and preparation method and application thereof

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Embodiment Construction

[0019] Specific embodiments of the present invention will be described below. Such as figure 1 Shown:

[0020] (1) Preparation of halogen coumarin derivatives

[0021] (1) Test method

[0022] see figure 1 , 5.28 g (30 mmol) of purchased 4-methyl-7-hydroxycoumarin, 13.8 g of anhydrous K 2 CO 3 (100 mmol) and 120 mL of anhydrous acetone were added to a 250 mL round-bottomed flask, and after stirring at room temperature for 2 h, 22 g (90 mmol) of 1,6-dibromohexane was added to the round-bottomed flask, 60 The reaction was refluxed at ℃ for 24 h. The anhydrous acetone in the reaction system was evaporated under reduced pressure (45°C, 0.05 MPa negative pressure), and 100 mL of distilled water was added to the round bottom flask to obtain a mixed solution, which was extracted with chloroform (150 mL×4), and the lower layers were combined Organic phase: Add 20-30 g of anhydrous sodium sulfate to the organic phase and let it stand overnight, filter to remove the solid sodium ...

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Abstract

The invention discloses a halogen coumarins derivative. The derivative is characterized by having a structural formula as follows. The name of the derivative is 4-methyl-7-[6-bromohexyloxy] coumarin. Meanwhile, the invention also discloses a preparation method of the halogen coumarins derivative, specific application of the derivative, and a preparation method of harpacticoida insecticide which contains the derivative serving as a main effective component.

Description

technical field [0001] The invention relates to a halogen coumarin derivative, the specific application of the derivative, a killing agent for daphnia mammoth prepared by using the derivative, and a preparation method of the derivative and the killing agent for daphnia mammoth. Background technique [0002] Daphnia is a general term for some species of crustacea Daphnia (Harpacticoida), which is the dominant group in marine meiofauna. In the production of abalone, sea cucumber, shrimp and crab seedlings, some species multiply in large numbers, which brings serious harm to the early production of seedlings. The harm is mainly reflected in two aspects: one is that the excessive reproduction of Daphnia daphnia in the water body not only consumes a large amount of oxygen, resulting in hypoxia in the water body, but also competes with the cultured abalone seedlings and ginseng seedlings for bait. It is used to cause poisoning of breeding seedlings; the second is that Daphnia mam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/16A01N43/16A01P7/04
CPCA01N43/16C07D311/16
Inventor 冷晓飞许淑芬张喜昌刘剑波凌飞王高学
Owner DALIAN HAIBAO FISHERY
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