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Preparation method and use of new sulfentrazone preparation

A technology of sulfentrazone and sulfentrazone is applied in the preparation of new sulfentrazone preparations and the field of use thereof, and can solve the problems of decreased content of sulfentrazone, adverse effects on functions of sulfentrazone, etc.

Active Publication Date: 2020-12-15
JIANGSU ROTAM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the content of sulfentrazone decreases over time and the function of sulfentrazone is adversely affected

Method used

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  • Preparation method and use of new sulfentrazone preparation
  • Preparation method and use of new sulfentrazone preparation
  • Preparation method and use of new sulfentrazone preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1 - Samples were prepared as follows:

[0048] Dissolve sulfentrachlor and purified metolachlor in acetone.

[0049] Table 1

[0050]

Embodiment 19

[0052] An emulsifiable concentrate with the following composition was prepared:

[0053]

[0054]

[0055] Examples 1 to 18 were tested to determine their photolytic stability using the following procedure:

[0056] Add 20 mL of the solution to the quartz tube. The tube is continuously irradiated with UV light from a UV lamp. Aliquots (100 [mu]L) of this solution were removed from the tube at 2 hours and 8 hours. The concentration of sulfentrazone in each aliquot was determined by HPLC.

[0057] The results are summarized in Table 2 below.

[0058] Table 2

[0059]

[0060]

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PUM

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Abstract

A herbicidal composition for application to plants to control weeds is provided, and the composition comprises sulfentrazone and an anti-photolysis agent, wherein the anti-photolysis agent is metolachlor-sperm. The ratio of the amount of sperm metolachlor to the amount of sulfentrachlor is generally about 2:1 to about 5:1. The amount of sulfentrachlor is preferably from about 10% to about 15.6% by weight of the herbicidal composition, and the amount of refined metolachlor is preferably from about 45% to about 50% by weight of the herbicidal composition . The composition may also include liquid diluents, solid diluents, wetting, dispersing or thickening agents, and combinations thereof.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Australian Patent Application No. 2016210751, filed with the Australian Intellectual Property Office on 5 August 2016, entitled "Methods for the preparation of new formulations of sulfentrazone and uses thereof", the entire contents of which are incorporated herein as refer to. technical field [0003] The present invention relates to 2',4'-dichloro-5'-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazole -1-yl) new formulations of methanesulfonylaniline (sulfentrazone) and anti-photolysis agents, their preparation methods and their use in agrochemical formulations. Background technique [0004] 2',4'-dichloro-5'-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazole-1- Base) methanesulfonylanilide (sulfentrazone) is a protoporphyrinogen oxidase inhibitor. The molecular formula of sulfentrazone is C 11 h 10 Cl 2 f 2 N 4 o 3 S. Its chemical structure is: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/653A01N37/22A01P13/00
CPCA01N37/22A01N43/653A01N2300/00A01N25/22
Inventor 詹姆斯·蒂莫西·布里斯托
Owner JIANGSU ROTAM CHEM
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