Aryloxyurea Compound Pest Control Agent Synthesis
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Solution Overview
Problem
Current pest control agents lack effectiveness and safety in acaricidal and fungicidal activities, and there is a need for a compound that can be industrially synthesized and used as a superior acaricide and/or fungicide.
Innovation Solution
An aryloxyurea compound with a specific structure, or its salt, is developed, which demonstrates superior acaricidal and fungicidal activity, safety, and can be industrially synthesized, serving as an active ingredient in pest control agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing pest control agents are used, then basic pest control function is provided, but acaricidal and fungicidal activities are insufficient and safety is compromised
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of pest control agents through specific substituent patterns on the phenyl ring (positions 2, 3, 4, 5, 6 with various groups like halogen, alkyl, alkoxy, nitro, cyano) and urea linkage variations to optimize both acaricidal/fungicidal activity and safety profile simultaneously
2Reliability
If complex highly effective compounds are developed, then acaricidal and fungicidal activity is improved, but industrial synthesis becomes difficult and costly
Solution Approach 1:
The patent applies segmentation by dividing the complex molecule into distinct functional segments: a phenyl ring core with positions for various substituents (X1-X6), a urea linkage, and R1-R6 groups. This modular structure allows systematic variation of individual segments to optimize activity while maintaining synthetic accessibility through stepwise construction
Solution Approach 2:
The patent employs parameter changes by systematically varying substituent types (halogen, alkyl, alkoxy, nitro, cyano), their positions on the phenyl ring, and the nature of R1-R6 groups to achieve optimal balance between biological activity and ease of industrial synthesis
Data Source
AI summary
The present invention provides a pest control agent, acaricide or fungicide that contains, as the active ingredient thereof, at least one type of compound selected from the aryloxyurea compounds represented by formula (V) (wherein R1 to R5 each independently represents an alkyl group or the like, X is a halogen atom or the like, n is an integer of 0 to 5, and Z is an oxygen atom or sulfur atom) or salts thereof.