ALS inhibitor sulfonylurea herbicide as well as preparation method and application thereof

A novel ALS inhibitor herbicide, synthesized through specific chemical processes and formulations, addresses resistance issues and environmental concerns, offering enhanced efficacy and stability for grass suppression.

CN119661444AActive Publication Date: 2025-03-21CHENGDU NEWSUN CROPSCI
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Patent Information

Application Number
CN202311206023.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-19
Publication Date
2025-03-21
Estimated Expiration
2043-09-19

AI Technical Summary

Technical Problem

The widespread resistance of various grass species to the ALS inhibitor herbicide glyphosate has reduced its effectiveness in agricultural settings, necessitating the development of new ALS suppressor compounds with improved stability and lower resistance potential.

Method used

A novel ALS inhibitor herbicide, represented by specific chemical structures and synthesis methods, is formulated into various formulations such as water emulsions, oil suspensions, and microencapsulated forms to enhance efficacy and stability, utilizing specific chemical intermediates and oxidation processes.

Benefits of technology

The new ALS inhibitor herbicide demonstrates superior efficacy in suppressing grass growth, with faster action and higher efficiency compared to glyphosate, while minimizing environmental and soil hazards.

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Abstract

The invention discloses an ALS inhibitor sulfonylurea herbicide as well as a preparation method and application thereof, relates to the technical field of herbicides, and comprises 22 compounds with structures as shown in a general formula I or optical isomers, crystal forms, pharmaceutically acceptable salts, hydrates or solvates thereof as well as a preparation method and application thereof. After the medicines are reasonably matched, the herbicide has a relatively good control effect on gramineae or broad leaf, and the herbicide disclosed by the invention does not cause harm to soil and environment.
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