Uracil Herbicide Compounds for Selective Weed Control
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Solution Overview
Problem
Current herbicides lack effective weed control while ensuring safety for useful plants, as they often exhibit high phytotoxicity or inadequate efficacy.
Innovation Solution
A compound represented by formula (A) is developed, which, when formulated with inert carriers and applied effectively, provides excellent weed control with minimal harm to useful plants, forming a herbicidal composition and method for weed control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional herbicides are used to control weeds, then weed control efficacy is improved, but phytotoxicity to useful plants increases
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of herbicidal compounds through specific substitutions at defined positions in the molecular framework. By changing parameters such as substituent types, their positions, and combinations, the invention achieves optimized herbicidal activity with reduced phytotoxicity to useful plants while maintaining effective weed control.
Solution Approach 2:
The patent employs composite materials by creating herbicidal compositions that combine multiple compound components with specific structural features. These composite herbicidal agents integrate different functional groups and substituents that work synergistically to enhance weed control efficacy while minimizing harmful effects on useful plants through balanced chemical properties.
2Productivity
If herbicidal compounds with high efficacy are developed, then weed control is improved, but safety against useful plants deteriorates
Solution Approach 1:
The patent applies local quality by introducing specific substituents at particular positions (R1, R2, R3, R4, R5, R6) of the herbicidal compound molecule. Each position can be independently optimized with specific chemical groups that confer localized functions: some positions enhance weed control activity while others reduce phytotoxicity to useful plants, achieving differentiated effects at different molecular locations.
Solution Approach 2:
The patent utilizes parameter changes by systematically varying the chemical parameters at each substitutable position of the herbicidal compound. By changing the nature, position, and combination of substituents, the invention optimizes the balance between productivity (weed control efficacy) and safety (protection of useful plants) through precise molecular parameter adjustment.
Data Source
AI summary
A compound represented by the following formula (A) has excellent control efficacy against weeds, and shows high safety against useful plants.