Novel Herbicidal Compounds Selectivity Efficacy
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Solution Overview
Problem
Current herbicides, such as cyanopyridines and substituted biphenyl derivatives, are not effective in controlling weeds due to limitations in selectivity and efficacy, particularly in crops, as certain intermediates in their synthesis exhibit herbicidal properties that are not fully utilized.
Innovation Solution
Development of novel herbicidal compounds of Formula (I), which include specific substituted phenyl and heteroaryl structures, and their use in herbicidal compositions to control weeds, offering improved selectivity and efficacy by formulating them with agronomically acceptable salts and adjuvants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cyanopyridines and substituted biphenyl derivatives are used as herbicides, then herbicidal activity is achieved, but selectivity and efficacy are limited
Solution Approach 1:
The patent modifies the chemical structure of known herbicidal compounds by introducing specific substituents at defined positions (R1-R7 groups) to optimize both efficacy and selectivity. This structural parameter optimization allows the compounds to maintain herbicidal activity while improving crop safety and weed selectivity
Solution Approach 2:
The invention creates composite herbicidal compounds that combine structural elements from different herbicide classes (cyanopyridine and biphenyl derivative features) into a single molecule with enhanced properties, achieving both high efficacy and improved selectivity simultaneously
2Ease of manufacture
If intermediates from biphenyl derivative synthesis are discarded, then synthesis complexity is reduced, but herbicidal opportunities are lost
Solution Approach 1:
The patent extracts and isolates the herbicidal intermediate compounds from the synthesis pathway of biphenyl derivatives, separating this value-generating step from the main synthesis route. These extracted intermediates are then purified and formulated as distinct herbicidal products
Solution Approach 2:
The invention transforms what were previously considered waste byproducts or unnecessary intermediates into valuable herbicidal agents. The synthesis intermediates that add complexity to the original pathway are now recognized as beneficial compounds with their own herbicidal applications
Data Source
AI summary
The present invention relates to compounds of Formula (I), or an agronomically acceptable salt of said compounds wherein R1, R2, R3 and R4 are as defined herein. The invention further relates to herbicidal compositions which comprise a compound of Formula (I) and to the use of compounds of Formula (I) for controlling weeds, in particular in crops of useful plants.