Beta-Lactam Herbicide Compounds for Low-Rate Crop-Selective Control
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Solution Overview
Problem
Existing herbicides suffer from insufficient herbicidal activity, particularly at low application rates, and unsatisfactory selectivity, leading to low compatibility with crop plants and potential toxicity to humans and animals.
Innovation Solution
Development of beta-Lactam compounds with specific substituents and formulations, including agriculturally acceptable salts, amides, esters, and thioesters, which exhibit high herbicidal activity, low toxicity, and high compatibility with crop plants, and a broad spectrum of activity against unwanted vegetation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If existing herbicides are used, then herbicidal activity is achieved, but activity is insufficient at low application rates
Solution Approach 1:
The patent applies parameter changes by systematically varying the chemical structure of beta-lactam compounds through different substituents (R1-R7 groups) to optimize herbicidal activity. The invention modifies molecular parameters such as substituent types, positions, and configurations to achieve high activity at low application rates while maintaining selectivity and safety profiles.
2Adaptability or versatility
If existing herbicides are used, then broad spectrum activity 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 patterns at different positions (R1-R7) of the beta-lactam core structure. Different substituent combinations provide localized modifications that confer both broad-spectrum herbicidal activity and selectivity for certain crop plants, allowing the compound to differentiate between target and non-target species.
3Reliability
If existing herbicides are used, then herbicidal effect is achieved, but toxicity to humans and animals is high
Solution Approach 1:
The patent applies parameter changes by optimizing the chemical structure parameters of beta-lactam compounds to achieve high herbicidal efficacy while reducing toxicity. Through systematic variation of substituent groups and their configurations, the invention identifies molecular parameter ranges that provide potent herbicidal activity with improved safety margins for humans and animals.
Data Source
AI summary
The invention relates to compounds of formula (I), and their use as herbicides. In said formula, R1 to R9 represent groups such as hydrogen, halo-gen or organic groups such as alkyl, alkenyl, alkynyl, or alkoxy; X is a bond or a divalent unit; Y is hydrogen, cyano, hydroxyl or a linear or cyclic organic group. The invention further refers to a composition comprising such compound and to the use thereof for controlling unwanted vegetation.