Substituted thiadiazinone dioxide and preparation method thereof, weeding composition and application

A technology of dioxide and thiadiazinone, applied in the field of pesticides

Active Publication Date: 2021-03-05
QINGDAO KINGAGROOT CHEM COMPOUNDS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The control of weeds is a crucial link in the process of achieving high-efficiency agriculture. Although there are various types of herbicides on the market, including PSⅡ inhibitor herbicides, etc., such as patents US3920641, US3989507, etc. disclose compounds of the general formula DE2656289A1 etc. disclosed the general formula compound Among them, the benzothiadiazinone herbicide bentazone developed by BASF is mainly used for rice, soybean, peanut, wheat and other crops to control broad-leaved weeds and sedge weeds, but is ineffective against gramineous weeds

Method used

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  • Substituted thiadiazinone dioxide and preparation method thereof, weeding composition and application
  • Substituted thiadiazinone dioxide and preparation method thereof, weeding composition and application
  • Substituted thiadiazinone dioxide and preparation method thereof, weeding composition and application

Examples

Experimental program
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Embodiment Construction

[0086] The following examples serve to illustrate the invention and should not be construed as limiting the invention in any way. The protection scope of the present invention is described by the claims.

[0087] In view of the economy and diversity of the compounds, we preferably synthesized some compounds, and among the synthesized compounds, selected parts are listed in Table 1 below. The specific compound structures and corresponding compound information are shown in Table 1. The compounds in Table 1 are just to better illustrate the present invention, but not to limit the present invention. For those skilled in the art, it should not be understood that the scope of the above subject of the present invention is limited to the following compounds.

[0088] Table 1 Compound structure and its 1 HNMR data

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PUM

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Abstract

The invention belongs to the technical field of pesticides, and particularly relates to substituted thiadiazinone dioxide and a preparation method thereof, a weeding composition and application. The substituted thiadiazinone dioxide is shown as a general formula I, and in the general formula I, R1 and R2 independently represent hydrogen, cyano, alkyl containing or not containing halogen, or the like; X represents hydrogen or halogen; Y represents C-Z or N; Z represents hydrogen or halogen; and Z represents hydrogen when X represents halogen. The compound has excellent herbicidal activity on gramineous weeds, broadleaf weeds, amaranth weeds and the like, and has high selectivity on crops such as soybeans, corns, rice or wheat.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a substituted thiadiazinone dioxide, a preparation method thereof, a herbicidal composition and application thereof. Background technique [0002] The control of weeds is a crucial link in the process of achieving high-efficiency agriculture. Although there are various types of herbicides on the market, including PSⅡ inhibitor herbicides, etc., such as patents US3920641, US3989507, etc. disclose compounds of the general formula DE2656289A1 etc. disclosed the general formula compound Among them, the benzothiadiazinone herbicide bentazone developed by BASF is mainly used for rice, soybean, peanut, wheat and other crops to control broad-leaved weeds and sedge weeds, but it is ineffective against gramineous weeds. However, due to the continuous expansion of the market, the resistance of weeds, the service life of drugs, and the economics of drugs, as well as people'...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D285/16C07D513/04A01N43/88A01P13/00A01G13/00
CPCC07D285/16C07D513/04A01N43/88A01G13/00C07D413/04A01P13/02A01N43/90
Inventor 连磊华荣保彭学岗赵德崔琦
Owner QINGDAO KINGAGROOT CHEM COMPOUNDS CO LTD
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