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Azoxystrobin emulsion and preparation method thereof

A technology for azoxystrobin and emulsion, applied in the field of azoxystrobin emulsion and its preparation, can solve the problems of low mixing and distillation efficiency, insignificant treatment effect, and high production cost, and achieves fast powder removal, outstanding effect, and long-lasting performance. long-lasting effect

Inactive Publication Date: 2021-09-24
ANHUI GUANGXIN AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of azoxystrobin emulsion, to solve the existing azoxystrobin emulsion and preparation method thereof proposed in the above-mentioned background technology, because it is not good to powdery mildew, rust treatment and mixed with The efficiency of distillation is not high, resulting in the problem that the treatment effect on powdery mildew and rust is not significant compared with similar products and the production cost is high

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  • Azoxystrobin emulsion and preparation method thereof
  • Azoxystrobin emulsion and preparation method thereof
  • Azoxystrobin emulsion and preparation method thereof

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0042] see Figure 1-5 , an embodiment provided by the present invention: an azoxystrobin emulsion, comprising the following components in parts by mass:

[0043] 170 parts of o-hydroxyphenylacetic acid;

[0044] 26 parts of trimethyl orthoformate;

[0045] 13 parts of salicylonitrile;

[0046] 23 parts of 4,6-dichloropyrimidine;

[0047] 33 parts of dry tetrahydrofuran;

[0048] 20 parts of acetic anhydride;

[0049] 15 parts of sodium methoxide;

[0050] 25 parts of anhydrous methanol;

[0051] 35 parts of dichloromethane;

[0052] 13 parts of hydrochloric acid;

[0053] Compson emerald white 63 parts;

[0054] 26 parts of N,N-dimethylformamide;

[0055]...

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Abstract

The invention discloses an azoxystrobin emulsion and a preparation method thereof, and relates to the technical field of azoxystrobin emulsions. The invention aims to solve the problems that the conventional azoxystrobin emulsion is poor in treatment of powdery mildew and rust disease and low in mixing and distilling efficiency in the production process, and the treatment effect on powdery mildew and rust diseases is not obvious compared with similar products, and the production cost is high. The emulsion is prepared from the following components in parts by mass: 170 parts of o-hydroxyphenylacetic acid, 26 parts of trimethyl orthoformate, 13 parts of 2-hydroxy-benzonitrile, 23 parts of 4, 6-dichloropyrimidine, 33 parts of dry tetrahydrofuran, 20 parts of acetic anhydride, 15 parts of sodium methoxide, 25 parts of absolute methanol, 35 parts of dichloromethane, 13 parts of hydrochloric acid, 63 parts of Copsen Cuibai, 26 parts of N,N-dimethylformamide, 52 parts of potassium carbonate and 43 parts of cuprous chloride.

Description

technical field [0001] The invention relates to the technical field of azoxystrobin emulsion, in particular to an azoxystrobin emulsion and a preparation method thereof. Background technique [0002] Azoxystrobin is a methoxyacrylate fungicide, chemical name (E)-2-[2-[6-(2-cyanophenoxy)pyrimidin-4-yloxy]phenyl]- Methyl 3-methoxyacrylate. The fungicide is broad-spectrum and highly effective, and has good activity against almost all fungal diseases such as powdery mildew, rust, glume blight, net spot, downy mildew, and rice blast. Azoxystrobin is the most widely used fungicide in the world. A large number of patent documents disclose its synthesis method in traditional devices, such as application number: 201410468954.5; name: synthesis method of azoxystrobin. The device includes: a catalyst for the synthesis of azoxystrobin, which immobilizes triethylenediamine on the surface of silica gel, not only can effectively catalyze the synthesis reaction of azoxystrobin, but also c...

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Application Information

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IPC IPC(8): A01N25/04A01N43/54A01P3/00B01J19/18B01D3/00B01D3/42
CPCA01N25/04A01N43/54B01J19/18B01D3/00B01D3/42
Inventor 寿王鸽操晶晶陈小军李行朱张胡梓杨
Owner ANHUI GUANGXIN AGROCHEM