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Herbicidal composition containing optically active phenylisoxazoline and application

A technology of phenylisoxazoline and herbicidal composition, which is applied in the field of phenylisoxazoline herbicidal composition, can solve problems such as crop damage, achieve phytotoxicity reduction, increase tolerance, and high control effect Effect

Inactive Publication Date: 2021-04-23
SHENYANG SINOCHEM AGROCHEMICALS R&D CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A problem with many highly effective herbicides is their incompatibility with crops, especially dicotyledonous crops such as cotton, oilseed rape, and grasses such as barley, millet, corn, rice, wheat and sugar cane Always satisfactory, i.e. in addition to weeds, crops are also somewhat damaged
But there is no report on the composition of optically active phenylisoxazoline compounds and other herbicides or safeners

Method used

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  • Herbicidal composition containing optically active phenylisoxazoline and application
  • Herbicidal composition containing optically active phenylisoxazoline and application
  • Herbicidal composition containing optically active phenylisoxazoline and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0253] The preparation of embodiment 1 compound A1-3 and A2-3

[0254]

[0255] 1) Preparation of ethyl (R / S)-3-(5-amino-2-chloro-4-fluorophenyl)-5-methyl-4,5-dihydro-5-isoxazolecarboxylate

[0256] Put 25g of Amylose tris (3,5-dimethylphenylcarbamate) silica gel into the chromatographic column, which will contain 1g of 3-(5-amino-2-chloro-4-fluorophenyl)-5-methyl-4,5-dihydro The 5ml dichloromethane solution of ethyl 5-isoxazolecarboxylate (prepared with reference to the method in CN105753853) is adsorbed in the chromatographic column, and is separated by Biotage rapid preparation chromatography, and the corresponding components are collected to obtain optical isomerism (R)-3 -(5-Amino-2-chloro-4-fluorophenyl)-5-methyl-4,5-dihydro-5-isoxazolecarboxylic acid ethyl ester 0.47g (optical purity 99.8%, melting point 105-106 ℃), (S)-3-(5-amino-2-chloro-4-fluorophenyl)-5-methyl-4,5-dihydro-5-isoxazolecarboxylic acid ethyl ester 0.46g (optical Purity 99.4%, melting point 104-105°...

Embodiment 235

[0263] Embodiment 2 35% emulsifiable concentrate

[0264]

[0265] Phosphorous acid was dissolved in cyclohexanone, and Composition 1-40 and ethoxylated triglycerides were added to obtain a clear solution.

Embodiment 360

[0266] Embodiment 3 60% wettable powder

[0267]

[0268] Composition 1-114, sodium dodecyl naphthalene sulfonate, sodium lignin sulfonate, and kaolin (all solid) were mixed together and pulverized in a pulverizer until the particles were on par.

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Abstract

The present invention relates to a herbicidal composition comprising at least one optically active phenylisoxazoline of formula (I) or an agriculturally acceptable salt or derivative thereof, and at least one herbicidal composition selected from a herbicidally active compound and / or other compound of a safener, wherein all the variables are defined according to the specification.

Description

Technical field [0001] The invention belongs to the field of agricultural herbicides, and specifically relates to a herbicidal composition containing optically active phenylisoxazolines and its application. Background technique [0002] The problem with many highly effective herbicides is that they are not compatible with crops, especially dicotyledonous crops such as cotton and oilseed rape, and grass crops such as barley, millet, maize, rice, wheat and sugarcane. It is always satisfactory that in addition to weeds, there will also be some damage to the crops. By reducing the application rate, crop damage is avoided; however, the degree of weed control is also naturally reduced. It has a broad herbicide spectrum and is safe for crops, which cannot usually be achieved with a single herbicide. [0003] Special combinations of herbicides with different mechanisms of action can increase the activity of the herbicide components through synergy. In this way the amount of herbi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N43/50A01N57/20A01P13/00
CPCA01N43/80A01N43/50A01N57/20A01P13/00
Inventor 杨吉春关爱莹崔东亮刘长令
Owner SHENYANG SINOCHEM AGROCHEMICALS R&D CO LTD
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