Picloram oxime ester derivatives, process for their preparation and their use as herbicides
By esterifying and coupling the atrazine nucleus with an aldoxime or ketoxime fragment, a simple and mild atrazine oxime ester derivative was prepared. This solved the problems of low-dose herbicidal activity and insufficient crop safety of atrazine oxime ester derivatives in the prior art, achieving efficient control of broadleaf weeds and safety for monocotyledonous crops, and providing a new herbicide development solution.
Patent Information
- Application Number
- CN202610870429.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2026-05-15
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the development of oxime ester derivatives for atrazine herbicides lacks a systematic evaluation of low-dose herbicidal activity, broadleaf weed selectivity, and crop safety. Furthermore, existing preparation methods are not applicable to a variety of aldoxime and ketoxime substrates, and the reaction conditions are harsh and the operation is inconvenient.
By esterifying and coupling the atrazine nucleus with different aldoxime or ketoxime fragments, and using a synthetic route involving carboxyl activation and subsequent coupling, atrazine oxime ester derivatives were prepared. These derivatives are simple to operate and have mild conditions, making them suitable for serial synthesis and post-emergence application to control broadleaf weeds.
It achieves high-efficiency suppression of broadleaf weeds at low doses, maintains safety for monocot crops, provides a direction for the development of new herbicides, and reduces research and development costs and time.
Smart Images
Figure CN122404217A_ABST