Herbicidal Malonamides Low Application Rate Selectivity
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Solution Overview
Problem
Existing herbicides based on malonic acid derivatives often suffer from insufficient herbicidal activity, particularly at low application rates, and unsatisfactory selectivity, leading to compatibility issues with crop plants.
Innovation Solution
Development of malonamide compounds of formula (I), which include specific substituents and agricultural acceptable salts, stereoisomers, and tautomers, designed to enhance herbicidal activity, selectivity, and compatibility with crops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing malonic acid derivatives are used as herbicides, then herbicidal activity is achieved, but the activity is insufficient particularly at low application rates
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of malonic acid derivatives through specific substituent patterns (R1-R10 groups) to enhance herbicidal activity. The structured variation of molecular parameters enables high activity at low application rates while maintaining selectivity.
2Reliability
If existing malonic acid derivatives are used as herbicides, then herbicidal effect is achieved, but selectivity is unsatisfactory resulting in low compatibility with crop plants
Solution Approach 1:
The patent applies local quality by introducing specific substituent groups (R1-R10) at particular positions on the malonic acid derivative core structure. This localized modification of molecular properties enables selective action against unwanted vegetation while preserving crop plant compatibility through differentiated chemical interactions.
3Reliability
If higher application rates are used to improve herbicidal activity, then activity increases, but toxicity to humans and animals increases
Solution Approach 1:
The patent resolves this contradiction through parameter changes in molecular structure that decouple herbicidal activity from toxicity. The specific substituent configurations (R1-R10) optimize biological activity against plants while minimizing mammalian toxicity, enabling effective control at low application rates that reduce human and animal exposure.
Data Source
AI summary
The present invention relates to malonamide compounds of the formula (I) wherein the variables are as defined in the claims and the description, and to compositions comprising these compounds. The invention also relates to the use of said malonamide compounds or the corresponding compositions for controlling unwanted vegetation. Furthermore, the invention relates to methods for controlling unwanted vegetation wherein said malonamide compounds or the corresponding compositions are applied.