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Agricultural bactericidal agent

An agricultural fungicide and a technology of bactericidal activity, applied in the field of pesticides, can solve the problems of crop injury and other problems, and achieve the effects of less injury, simple process, and easy availability of raw materials

Inactive Publication Date: 2009-06-17
SHANGHAI NATURE STANDARD R&D & BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although copper fungicides have many advantages, excessive copper ions can easily cause phytotoxicity to crops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The synthesis of embodiment 1 diacetonamine oxalate

[0030] Add acetone (300mL, 4.1moles) and a small amount of zeolite into a 500mL round bottom flask, then connect the Soxhlet extractor with barium hydroxide in the extraction cylinder to the flask, and heat to reflux with an electric heating mantle. After 24 hours of reaction, the heat source was removed, and after the reaction solution was cooled, the Soxhlet extractor was removed, and about 100 mg of iodine was added to the flask, and a rectification column and a condenser were installed to carry out rectification, and three fractions were collected: I (56 ~ 80 ℃), this fraction is mainly acetone, containing a small amount of mesityl oxide; II (80 ~ 126 ℃), this fraction is divided into two phases after cooling, the lower phase is water, and the upper phase is mesityl oxide; III (126 ~131°C), the fraction is pure mesityl oxide. The acetone recovered in the I cut can be directly used for the next reaction, and the ...

Embodiment 2

[0032] Embodiment 2 The preparation of diacetonamine copper oxalate

[0033] Weigh diacetonamine oxalate (2.5g, 0.012moles) into a 500ml round bottom flask, then add absolute ethanol (300ml) and a small amount of zeolite, heat until diacetonamine oxalate is completely dissolved, then add Cu(CH 3 COO) 2 ·H 2 O (2.0 g, 0.010 moles), reflux until the reaction solution is colorless, at this time, a sky blue crystal is formed at the bottom of the bottle, filter while hot, wash the crystal three times with hot absolute ethanol, and dry in the air.

Embodiment 3

[0034] Example 3 Determination of the in vitro antibacterial activity of diacetonamine copper oxalate on fungi

[0035] Using Zinc as the control agent, the antibacterial activity of diacetonamine copper complex of oxalate and diacetonamine on several tested pathogenic fungi was determined by the method of inhibiting spore germination. The results are shown in Table 1. It can be seen from Table 1 that the toxicity of the complex and the control agent Zinc to the six tested pathogenic bacteria is basically the same, while the toxicity of diacetonamine is much lower than these two agents. It can be seen that the antibacterial mechanism of diacetonamine oxalate and copper is obviously different after coordination. Diacetonamine mainly inhibits the growth of hyphae, while after coordination, it mainly inhibits spore germination.

[0036] Table 1 The virulence of diacetonamine copper oxalate in inhibiting the mycelial growth of seven pathogenic fungi

[0037]

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PUM

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Abstract

The invention discloses an agricultural fungicide for oxalic acid dipropyl ketoamine copper. The structural formula of the compound is shown as in the figure. A method for preparing the compound of the invention comprises synthesis of dipropyl ketoamine and synthesis of the oxalic acid dipropyl ketoamine copper, and the production route has the characteristics of easily obtained cheap raw materials and simple technology, and so on. The compound can be processed into preparations such as missible oil, wettable powder, dry suspending agent and water suspending agent so as to remarkably prevent the main diseases of a plurality of crops and be environment friendly.

Description

Technical field: [0001] The invention belongs to the technical field of pesticides, and in particular relates to a new agricultural fungicide. Background technique: [0002] Discovering new active ingredients through artificial synthesis or from natural products is the main way to develop new pesticides, but systematic activity screening of known compounds and industrial development of compounds with application value are also the key to enriching pesticide varieties. an important way. [0003] Diacetonamine is a small molecular compound that is very easy to synthesize. Its structural formula is as follows, and its chemical name is: 4-amino-4-methylpentane-2-one. There have been reports on the synthesis of diacetonamine in the literature for a long time, but there is no other use report except as a reaction intermediate. The inventors systematically evaluated the activity of diacetonamine produced in the separation process during the antibiotic screening process, and found...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F1/08A01N55/02A01P3/00
Inventor 姬志勤吴文君魏少鹏师宝君
Owner SHANGHAI NATURE STANDARD R&D & BIOTECH
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