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Application of tetrahydrobenzene difenoconazole to preparation of agricultural fungicide or fungicide composition and preparation method of tetrahydrobenzene difenoconazole

An agricultural fungicide, tetrahydrophenyl ether technology, applied in the field of agricultural fungicides, to achieve the effect of reducing costs, increasing yield, and reducing environmental pressure

Inactive Publication Date: 2017-11-03
JIANGSU GENGYUN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods mainly describe and require how to synthesize difenoconazole, improve the synthesis yield, and how to purify difenoconazole, but the 4-((-(2-chloro-4 -(4-chlorophenoxy)phenyl)-4-methyl-1,3-dioxolan-2-yl)methyl)-4H-1,2,4-triazole (tetrahydrophenyl ether azole) the processing of formula (I) compound, did not introduce and report

Method used

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  • Application of tetrahydrobenzene difenoconazole to preparation of agricultural fungicide or fungicide composition and preparation method of tetrahydrobenzene difenoconazole
  • Application of tetrahydrobenzene difenoconazole to preparation of agricultural fungicide or fungicide composition and preparation method of tetrahydrobenzene difenoconazole
  • Application of tetrahydrobenzene difenoconazole to preparation of agricultural fungicide or fungicide composition and preparation method of tetrahydrobenzene difenoconazole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] step one,

[0049] Reaction equation:

[0050]

[0051] Add 1000kg of difenoconazole scraps (difenoconazole content 36.7%, 0.903kmol, tetrahydrodifenoconazole content 33.8%, 0.832kmol) into a 5000L reactor, pump 3000kg of toluene into the kettle , heated up to about 30°C under stirring, stirred for 1 hour, and confirmed that it was completely dissolved; then 59kg (content 98%, 0.915kmol) of nitric acid (content 98%, 0.915kmol) in the preset high tank was added dropwise to the reactor, and the jacket of the reactor was cooled with water to control the nitric acid drop. The temperature of the addition process does not exceed 40°C. After the dropwise addition, stir for half an hour, then cool and crystallize, slowly cool to 17°C in 4 hours, stir and keep at 17°C for 1 hour, and then filter the reaction solution through a filter press. The filtrate was poured into another 5000L reaction kettle, and the filter cake was 420kg of tetrahydrodifenoconazole nitrate wet produc...

Embodiment 210

[0067] Embodiment 2.10% compound I (tetrahydrodifeconazole) granules:

[0068] Compound I 10%;

[0069] Dispersant 890 68%;

[0070] Dispersant CP86 3%;

[0071] Wetting agent SW 1%;

[0072] Defoamer 0.2%;

[0073] Sodium sulfate 5%;

[0074] Light calcium carbonate tops up to 100%.

[0075] After the components are fully mixed, they are pulverized by a superfine pulverizer, extruded and granulated, and dried to obtain 10% granules.

Embodiment 3

[0076] Example 3. 30% compound I (tetrahydrodifeconazole) suspension concentrate.

[0077] Compound I 30%;

[0078] Nonylphenol polyethylene glycol ether 5%;

[0079] Urea 5%;

[0080] Xanthan Gum 0.2%;

[0081] Sodium Benzoate 0.3%;

[0082] Magnesium aluminum silicate 1%;

[0083] Silica 1%;

[0084] Water topped up to 100%;

[0085] Put each component into a sand mill for grinding to make a suspension.

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PUM

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Abstract

The invention discloses an application of tetrahydrobenzene difenoconazole to preparation of an agricultural fungicide or fungicide composition and a preparation method of the tetrahydrobenzene difenoconazole, and further discloses an application of a 4-((-(2-chlorine-4-(4-chlorophenoxy) phenyl)-4-methyl-1, 3-dioxolane-2-base) methyl)-4H-1, 2, 4-triazole (tetrahydrobenzene) compound to agricultural fungicide. The structural formula of the compound is as shown in the specification. According to the application, 35-40% of tailings serving as hazardous organic waste solids in the production process of agricultural fungicide difenoconazole are changed into useful pesticides, emission of the hazardous organic waste solids is greatly decreased, and environmental protection pressure of production enterprises is relieved. According to the preparation method, the yield of the difenoconazole can be increased, and cost is reduced.

Description

technical field [0001] The invention belongs to the field of agricultural fungicides, in particular to 4-((-(2-chloro-4-(4-chlorophenoxy)phenyl)-4-methyl-1,3-dioxolane Application of -2-yl)methyl)-4H-1,2,4-triazole (tetrahydrodifenoconazole) compound of formula (I) in the preparation of agricultural fungicide or fungicide composition and its preparation method. [0002] Background technique [0003] 1-((2-(2-chloro-4-(4-chlorophenoxy)phenyl)-4-methyl-1,3-dioxolan-2-yl)methyl)-1H-1 , 2,4-triazole (difenoconazole) is a very ideal triazole agricultural fungicide, reported by W.Ruess et al., has systemic properties, is a sterol demethylation inhibitor, and has a bactericidal spectrum Widely, foliage treatment or seed treatment can improve crop yield and ensure quality, for Ascomycetes, Basidiomycetes and including Alternaria, Ascodiospora, Cercospora, Spirospora, and Globula Deficiency fungi including Phoma, Phoma, Septoria, and Black Star, powdery mildew, Rust and some pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01P3/00C07D413/06
CPCA01N43/653C07D413/06A01N25/04A01N25/12
Inventor 于康平李楠贾杰白宏伟
Owner JIANGSU GENGYUN CHEM CO LTD
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