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High-efficiency, broad-spectrum, low-toxicity and environmentally-friendly agricultural new compounds and composition thereof

A compound and composition technology, applied in the field of pesticides, can solve problems such as uncontrolled or lax control of impurity content, lowering the stability of active ingredients, and affecting environmental and ecological safety, so as to achieve good industrial value or pesticide value, and improve availability Operability, the effect of reducing drug operating costs

Pending Publication Date: 2020-03-17
刘力
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] 2. Most of the original drug products do not control or control the impurity content strictly
The high content of impurities in technical products may lead to adverse effects in many aspects. For example, some impurities have high toxicity, some will bring difficulties to the preparation processing, and some will reduce the stability of active ingredients.
With the use of preparation products, these impurities may also affect the environment and ecological safety, and even cause large-scale crop phytotoxicity.
[0018] So far, there is no published bibliography at home and abroad for the better novel Yeqing double copper compound of the present invention, such as Yeqing double copper α, β, ω type crystalline compound (thysen copper α, β, ω type crystalline compound), That is, new leaf green double copper crystalline hydrates with different molecular formulas or different crystal forms and their preparation methods and uses

Method used

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  • High-efficiency, broad-spectrum, low-toxicity and environmentally-friendly agricultural new compounds and composition thereof
  • High-efficiency, broad-spectrum, low-toxicity and environmentally-friendly agricultural new compounds and composition thereof
  • High-efficiency, broad-spectrum, low-toxicity and environmentally-friendly agricultural new compounds and composition thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0178] The preparation of embodiment 1 Yeqing double copper monohydrate (thiesin copper α-type compound)

[0179] At room temperature, add 8.352g of refined Yeqingshuang to a 250ml flask, add 50ml of water, stir, add 40ml of an aqueous solution of 2.42g of sodium hydroxide, stir to dissolve, then add 30ml of an aqueous solution of 7.491g of copper sulfate pentahydrate, and quickly precipitate For solid, stir at about 40°C for 30 minutes, place at room temperature for half an hour, filter with suction, rinse the solid with a small amount of water and isopropanol until there is no sulfate in the filtrate, filter with suction, dilute the obtained solid at about 60°C and blow dry for about 5 hours , to obtain yellow-green solid 8.6g; HPLC: the main peak retention time of its HPLC is consistent with the HPLC main peak retention time of thiesen copper; Karl Fischer's method measures moisture to be 4.99%, thermal analysis: platform weight loss is about 4.76% (see attached figure 1 )...

Embodiment 2

[0180] The preparation of embodiment 2 Yeqing double copper monohydrate

[0181] Add Yeqingshuang 8.352g in a 500ml flask, add 40ml of water, stir, dropwise add 2.56g of potassium hydroxide (dissolved in 20ml of water) aqueous solution, stir to dissolve, then add 30ml of aqueous solution of 5.99g of copper acetate monohydrate, and quickly precipitate solids. Stir at about 40°C for 20 minutes, add 10ml of ethanol, stir for 5 minutes, place at room temperature for half an hour, filter with suction, wash the solid with a small amount of water until there is no acetate in the filtrate, filter with suction, dilute the obtained solid at about 45°C and blow dry 1h, and then dried at about 60°C for about 5h to obtain 10.5g of yellow-green solid; HPLC: the retention time of the main peak of HPLC is consistent with the retention time of the main peak of HPLC of Yeqing double copper; the moisture content is 4.92% as determined by Karl Fischer method, thermal analysis: weight loss on the p...

Embodiment 3

[0182] The preparation of embodiment 3 Yeqing double copper 1.25 hydrate (thysen copper β type compound)

[0183] Add 8.352g of refined Yeqingshuang to a 500ml flask, add 40ml of water, stir, add dropwise 2.45g of sodium hydroxide (dissolved in 20ml of water) aqueous solution to dissolve, stir for 30 minutes, then add 7.491g of copper sulfate pentahydrate aqueous solution 30ml , quickly precipitate solids, stir at about 40°C for 20 minutes, then place at room temperature for half an hour, filter with suction, wash the solids with a small amount of water until there is no sulfate in the filtrate, filter with suction, dilute the obtained solids and air-dry at about 45°C for 1 hour, Then dry at about 50°C for about 4 hours to obtain 10.5 g of a yellow-green solid; HPLC: the retention time of the main peak of HPLC is consistent with that of thiesen copper; the moisture content measured by the Karl Fischer method is 6.17%, and thermal analysis: the weight loss on the platform is abo...

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Abstract

The invention provides alpha, beta and omega type crystal compounds of thiosen copper, and an agricultural composition thereof. The compounds have the advantages of low preparation energy consumption,easiness in preparation, greenness, environmental protection, lower hygroscopicity, and good storage stability or good prevention and treatment effects, and are suitable for preparing the compositioncontaining the compounds, pesticides for preventing and treating various bacterial and fungal diseases on crops and / or promoting the health or growth and development of the crops, or medicaments forprotecting industrial materials from being invaded by germs and other fields.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to provide a novel compound, compound, composition, preparation method and application of an antibacterial drug Yeqing double copper for high-efficiency, broad-spectrum, low-toxicity and environmental protection agriculture with better stability. Background technique [0002] Yeqing double copper or thiasen copper, the chemical name is N, N'-methylene-bis(2-amino-5-mercapto-1,3,4-thiadiazole) copper, and the molecular formula is C 5 h 4 N 6 S 4 Cu, with a molecular weight of 339.9, is a broad-spectrum fungicide of thiazole organic copper (document 1, pesticide CN00132657.0 for the prevention and treatment of bacterial diseases of crops), and is mainly registered for the prevention and treatment of rice bacterial blight, bacterial streak disease, cabbage soft rot and Tomato bacterial wilt. It has the characteristics of high efficiency and broad spectrum, low toxicity, safety a...

Claims

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Application Information

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IPC IPC(8): A01N59/20A01N43/90A01N37/50A01N43/653A01N43/80A01N43/16A01N37/18A01N37/46A01N43/78A01N47/12A01N37/38A01N37/34A01N37/26A01P1/00A01P3/00
CPCA01N37/18A01N37/26A01N37/34A01N37/38A01N37/46A01N37/50A01N43/16A01N43/653A01N43/78A01N43/80A01N43/90A01N47/12A01N59/20Y02A50/30
Inventor 刘力
Owner 刘力
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