Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Thiodiazole copper compound, and its preparation method, preparation and application in control of agricultural plant diseases

A compound, organic copper technology, applied in the direction of copper organic compounds, botanical equipment and methods, biocides, etc., can solve the problems of sensitive plant phytotoxicity, rust tick value-added, crop phytotoxicity, etc., to achieve easy industrial production, Low cost, bacterially efficient effect

Inactive Publication Date: 2012-06-27
NORTHWEST A & F UNIV
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is characterized by an advantageous protective fungicide with low cost, but its disadvantages are: first, it is easy to cause phytotoxicity, and its use is prohibited or restricted during the flowering and young fruit stages; second, its miscibility is poor, and most of the inorganic copper preparations are Alkaline pesticides cannot be mixed with most pesticides, and it is inconvenient to use; third, it is easy to cause the value-added of mites and rust ticks, which increases the cost of control in disguise; fourth, the treatment effect is not strong, and it is not easy to use on rice use
[0008] Although copper fungicides have many advantages, excessive copper ions can easily cause phytotoxicity to crops
Studies have shown that copper ions can kill pathogenic bacteria at 10mg / L, and cause phytotoxicity to sensitive plants when the concentration reaches 30mg / L
At present, there is no relevant report on the novel thiazole-type organocopper compound and its preparation method, and there is no relevant report on the use of the novel thiazole-type organocopper compound in the prevention and control of agricultural plant diseases.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thiodiazole copper compound, and its preparation method, preparation and application in control of agricultural plant diseases
  • Thiodiazole copper compound, and its preparation method, preparation and application in control of agricultural plant diseases
  • Thiodiazole copper compound, and its preparation method, preparation and application in control of agricultural plant diseases

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]6.6g of 2-mercaptobenzothiazole with 99% purity, 5.4g of 2-amino-5-mercapto-1,3,4-thiadiazole with 98% purity and 260ml of 75% ethanol in water once Put it into a 500ml reaction bottle, heat and dissolve at a temperature of 74°C to obtain solution A; add 2.5g of copper sulfate pentahydrate with a purity of 99% and 25ml of distilled water into a 500ml reaction bottle, heat, and dissolve at a temperature of 42°C Stir under low pressure to make it fully dissolve. After the copper sulfate is completely dissolved in water, under the action of stirring, add solution A dropwise (0.02-0.04ml per drop) into the aqueous solution of copper sulfate, and add dropwise within 28min. Complete, then control the temperature at 70°C, stir and react for 1h, after the reaction, let stand for precipitation for 4.5h, after fully layering, remove the upper layer solution, and the lower yellow-brown precipitate is washed with absolute ethanol (or ethanol) and water successively, and then in Dry ...

Embodiment 2

[0035] The preparation method of copper-2-mercaptobenzothiazole-2-amino-5-mercapto-1,3,4-thiadiazole is the same as in Example 1.

[0036] Take the following materials in percentage by weight: copper-2-mercaptobenzothiazole-2-amino-5-mercapto-1,3,4-thiadiazole 20.0% prepared in this example, octylphenol polyoxygen 1.0% of vinyl ether, 4.5% of sodium dibutylnaphthalenesulfonate formaldehyde condensate, 74.5% of white carbon black, according to the above ratio, the materials are fully mixed, ground and passed through a 320-mesh sieve to obtain 20% thiazole organocopper compound wettable powder.

[0037] The test strain is bacterial blight of rice, which is provided by the Pesticide Research Institute of Northwest Agriculture and Forestry University. The prepared 20% thiazole organocopper compound wettable powder is determined by routine antibacterial test according to conventional methods. Ling's wettable powder (auxiliary materials and their contents are the same as the 20% th...

Embodiment 3

[0039] 4.5g of 2-mercaptobenzothiazole with a purity of 99%, 5.6g of 2-amino-5-mercapto-1,3,4-thiadiazole with a purity of 98%, and 180ml of 95% mass fraction of an aqueous methanol solution once Put it into a 500ml reaction bottle, heat and dissolve at a temperature of 85°C to obtain solution A; add 2.5g of copper sulfate pentahydrate with a purity of 99% and 25ml of distilled water into a 500ml reaction bottle, heat, and dissolve at a temperature of 30°C Stir under low pressure to make it fully dissolve. After the copper sulfate is completely dissolved in water, under the action of stirring, add solution A dropwise (0.02-0.04ml per drop) into the aqueous solution of copper sulfate, and add dropwise within 25min. Complete, then control the temperature at 65°C, stir and react for 1h, let stand for precipitation for 4h after the reaction, remove the upper layer solution after sufficient layering, and wash the lower yellow-brown precipitate with absolute ethanol (or ethanol) and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of organic copper agricultural bactericides, which discloses a thiodiazole copper compound, and its preparation method, preparation and application in control of agricultural plant diseases. 2-Mercaptobenzothiazole, 2-amino-5-mercapto-1,3,4-thiadiazole and cupric salt are added into an organic solvent for reaction, and separation, washing and drying are carried out in sequence after reaction completes to obtain a novel thiodiazole copper compound. The production line has cheap and easily-accessible raw material, and simple process. The compound has stable properties and broad spectrum, can be processed into wettable powder, dry suspension and aqueous suspension, etc., and has significant control effects on various crop diseases and environment safety.

Description

technical field [0001] The invention belongs to the technical field of pesticide chemical industry, and in particular relates to a thiazole organic copper compound, a preparation method, a preparation and an application in preventing and controlling agricultural plant diseases. Background technique [0002] The molecular formula of 2-mercaptobenzothiazole is C 7 h 5 NS 2 , molecular weight 167.24, light yellow powder, soluble in alkaline solutions such as propanol, ethanol, chloroform, ammonia, sodium hydroxide and sodium carbonate, slightly soluble in benzene, insoluble in water and gasoline. It is mainly used as a rubber vulcanizing agent (accelerator M) and also as a pesticide fungicide, commonly known as hydrogen sulfide agent or M agent, but its activity is low and has not been widely used. 2-Mercaptobenzothiazole is also industrially used as a corrosion inhibitor for metal copper. In order to explore the corrosion inhibition mechanism of 2-mercaptobenzothiazole, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07F1/08A01N55/02A01P1/00A01P3/00
Inventor 王永华张慧晓刘蒙蒙周伟王高学段金友
Owner NORTHWEST A & F UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com