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Weeding composition and application thereof and herbicide

A herbicidal composition and a technology for the composition, applied in the field of pesticides, can solve the problems of weed resistance, evolution and the like, and achieve the effects of expanding the herbicidal spectrum, excellent safety, and delaying the drug resistance and drug resistance of weeds

Pending Publication Date: 2020-10-27
SHANDONG CYNDA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To help address this problem, researchers in the field of synthetic chemistry have prepared many different herbicides, however, long-term continuous high-dose use of a single species or single mode of action chemical herbicides can easily lead to weed resistance and resistance evolution And other issues

Method used

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  • Weeding composition and application thereof and herbicide
  • Weeding composition and application thereof and herbicide
  • Weeding composition and application thereof and herbicide

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0048] Preparation Example 1: Compound 1 was synthesized using the following synthetic route

[0049]

[0050] Preparation of compound 2a: Dissolve 2-methyl-6-aminobenzoic acid (i.e., compound 1a) (100mmol) in acetic acid (1200ml), add 1mol / L ICl acetic acid solution dropwise under stirring, and continue stirring after the addition is complete Reaction 2h. A large amount of solids will be precipitated during the reaction, and TLC will track the reaction process, after the reaction is completed. The filtrate was removed by suction filtration under reduced pressure, the obtained solid was washed twice with 500 mL of acetic acid, and after drying, an off-white solid was obtained with a yield of 93%.

[0051] Preparation of compound 3a: under nitrogen protection, compound 2a (20 mmol) and 30 ml of pyridine were added into a 100 mL two-necked bottle. After stirring until the solid was completely dissolved, m-chlorophenylisocyanate (25 mmol) was slowly added to the reaction sys...

Embodiment

[0072] The formula composition and dosage form of each embodiment are all listed in Table 2.

[0073] Table 2

[0074]

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PUM

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Abstract

The invention relates to the field of pesticides, and discloses a weeding composition and application thereof and a herbicide. The composition contains an effective weeding amount of a component A andan effective weeding amount of a component B, wherein the weight ratio of the component A to the component B is 1:(0.01-100), the component A is a quinazolinedione compound with a structure represented by a formula (I), in the formula (I), R is a group represented by a formula (I-1), and the component B is selected from pyridazinone herbicides, triazine herbicides, triazolone herbicides, carbamate herbicides, uracil herbicides, urea herbicides, nitrile herbicides, sulfonylurea herbicides and the like. The weeding composition disclosed by the invention can expand the herbicide controlling spectrum, improve the weed control effect and delay the drug resistance of weeds.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a herbicide composition, the application of the herbicide composition in controlling crop weeds and a herbicide. Background technique [0002] Protecting crops from weeds and other crop-inhibiting plants has been a recurring problem in agriculture. To help address this problem, researchers in the field of synthetic chemistry have prepared many different herbicides, however, long-term continuous high-dose use of a single species or single mode of action chemical herbicides can easily lead to weed resistance and resistance evolution And other issues. [0003] Reasonable compounding or mixing of herbicides has the advantages of expanding the herbicidal spectrum, improving the control effect and delaying the occurrence and development of weed resistance and drug resistance. It is one of the most effective methods to solve the above problems. Contents of the invention [0004] The object...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/18A01N43/56A01N39/04A01N43/42A01N47/30A01N43/54A01N43/40A01N41/10A01N43/70A01N43/90A01N43/80A01N37/22A01N43/88A01N57/14A01P13/00C07D403/06
CPCA01N37/22A01N39/04A01N41/10A01N43/40A01N43/42A01N43/54A01N43/56A01N43/70A01N43/80A01N43/88A01N43/90A01N47/18A01N47/30A01N57/14C07D403/06
Inventor 陈恩昌王现全杨光富张天柱刘勇杜晨朱玉坤何波
Owner SHANDONG CYNDA CHEM
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