Herbicidal Quinolines Selective Weed Control
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Solution Overview
Problem
Current herbicidal compounds are limited in their effectiveness and specificity for controlling weeds in crops, often affecting desirable plant growth and requiring multiple applications.
Innovation Solution
Development of novel herbicidal compounds of Formula (I), specifically N-(tetrazol-5-yl)- and N-(triazol-5-yl)-arylcarboxamides, which are designed to selectively target and inhibit weed growth with improved agronomic acceptability and formulation into various herbicidal compositions for efficient application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current herbicidal compounds are used to control weeds, then weed control is achieved, but desirable plant growth is affected and multiple applications are required
Solution Approach 1:
The patent applies local quality by introducing specific substituent patterns at defined positions on the aromatic ring of the herbicidal compound. Different substituents (halogens, alkyl groups, alkoxy groups, etc.) are placed at specific positions (R1-R6) to create compounds with localized functional properties that enhance selectivity between weed and crop plants, allowing effective weed control while minimizing impact on desirable plants
Solution Approach 2:
The patent employs parameter changes by systematically varying the chemical structure parameters of the herbicidal compounds, including different types of substituents (fluorine, chlorine, bromine, iodine, methyl, ethyl, propyl, etc.), their positions on the aromatic ring, and their combinations. These structural parameter variations create a series of compounds with different biological activities and selectivities, enabling optimization for specific weed-crop systems
2Duration of action of stationary object
If current herbicidal compounds are applied repeatedly to control weeds, then weed control is maintained, but application frequency and resource consumption increase
Solution Approach 1:
The patent addresses continuity of useful action by developing herbicidal compounds designed to provide sustained weed control activity. The chemical structures are optimized for persistent biological activity in the target system, allowing a single application to maintain effective weed control over an extended period, thereby eliminating the need for repeated applications and reducing time loss
3Reliability
If current herbicidal compounds are used to control weeds, then some weed control is achieved, but specificity for targeting weeds versus crops is limited
Solution Approach 1:
The patent applies local quality by introducing specific substituent patterns at defined positions on the aromatic ring of the herbicidal compound. Different substituents (halogens, alkyl groups, alkoxy groups, etc.) are placed at specific positions (R1-R6) to create compounds with localized functional properties that enhance selectivity between weed and crop plants, allowing effective weed control while minimizing impact on desirable plants
Solution Approach 2:
The patent employs parameter changes by systematically varying the chemical structure parameters of the herbicidal compounds, including different types of substituents (fluorine, chlorine, bromine, iodine, methyl, ethyl, propyl, etc.), their positions on the aromatic ring, and their combinations. These structural parameter variations create a series of compounds with different biological activities and selectivities, enabling optimization for specific weed-crop systems
Data Source
AI summary
The present invention relates to compounds of formula (I), or an agronomically acceptable salt of said compounds wherein A1a, A1b, R1, R2, R3, R4, R5 and R6 are as defined herein. The invention further relates to herbicidal compositions which comprise a compound of Formula (I), and to their use for controlling weeds, in particular in crops of useful plants.