Diazene Oxide Carboxylates for Mite Control
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Solution Overview
Problem
Current pesticidal compounds are not effective in controlling mites and other acarids, and there is a need for novel diazene oxide carboxylate compounds with improved miticidal activity.
Innovation Solution
Development of diazene oxide carboxylate compounds with specific structural formulas, including branched or straight-chain alkyl, haloalkyl, or cycloalkyl groups, and their use in compositions with suitable carriers for application as acaricides, insecticides, and nematicides, prepared by reacting substituted compounds with oxidizing agents like meta-chloroperbenzoic acid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pesticidal compounds are used, then general pest control is achieved, but miticidal activity is insufficient
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of diazene oxide carboxylates through varying substituents (R1, R2, R3, R4, R5, R6) at different positions on the aromatic ring. This structural parameter modification enables the compounds to achieve both high miticidal activity and broad spectral control against various pests including mites, insects, and nematodes
Solution Approach 2:
The patent creates composite pesticidal compounds by combining the diazene oxide carboxylate core structure with multiple different substituent groups. These composite molecular structures provide both the specificity needed for miticidal activity and the versatility for broad-spectrum pest control
2Reliability
If novel diazene oxide carboxylate compounds are developed, then miticidal efficacy is improved, but compound complexity increases
Solution Approach 1:
The patent systematically varies substituent parameters (types, positions, and combinations of R1-R6 groups) to optimize acaricidal efficacy. By making controlled parameter changes to the molecular structure, the patent achieves high efficacy against mites while managing structural complexity through a systematic approach to substitution patterns
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The diazene oxide carboxylate compounds demonstrate high efficacy as acaricides, achieving 100% control of mite adults and eggs/larvae, providing a novel solution for mitigating mite infestations on plants.
Implementation Method 1
prepared by reacting substituted compounds with oxidizing agents like meta-chloroperbenzoic acid
Data Source
AI summary
Pesticidal compounds having the structural formula (I) wherein: R2 is C1-C6 branched or straight chain alkyl; C1-C4 branched or straight-chain haloalkyl; or C3-C6 cycloalkyl; m is 0, 1, or 2; X is selected from the group consisting of: C1-C6 branched or straight-chain alkoxy; halogen; Ci-Cc, branched or straight-chain alkyl; or Ci-G, branched or straight-chain alkylthio; n is 0 or 1; A is 0; CH2; or NR', wherein R' is (C1-C6 alkyl )carbonyl; Y is phenyl; benzyl; thia/.olyl; thienyl; pyridyl; or tetrahydrofuranyl, the aromatic ring of each substituent being optionally substituted with one or more of halogen, C1-C6 branched or straight-chain alkyl, or C1-C6 branched or straight-chain haloalkyl; use of the compounds as pesticides and pesticidal compositions comprising the compounds.