Compounds useful for the preparation of various pesticides and their markers
JP2026090439APending Publication Date: 2026-06-02ADAMA AGAN LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- ADAMA AGAN LTD
- Filing Date
- 2026-02-17
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing methods for preparing chiral compounds used in pesticides are expensive, require multiple synthesis steps, and rely on heavy metals like palladium, rhodium, and iridium, making it difficult to selectively prepare desired isomers.
Method used
A novel method using Grignard reagents and organolithium reagents to synthesize unsaturated precursors and intermediates, avoiding expensive catalysts and reducing the need for ring-closing steps, allowing for selective preparation of chiral compounds.
Benefits of technology
The method reduces production costs, minimizes the use of heavy metals, and improves the yield of desired chiral compounds by introducing chirality in later stages, thus enhancing the efficiency and cost-effectiveness of pesticide synthesis.
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Abstract
In the field of pesticide synthesis, this provides synthetic intermediates, polymorphs and marker compounds, as well as their salts, processes for their preparation, and their uses. [Solution] The present invention provides a variety of compounds that are novel and useful intermediates in a novel method for preparing a specific marker compound, including a specific compound called a saturated target, and its amorphous and crystalline forms, as well as a method for preparing the same, a composition containing the same, including a method for minimizing the content of the stored marker in the saturated target product and composition. In one embodiment, a solid form of N-(2-fluorophenyl)-1-methyl-2-oxo-4-[3-(trifluoromethyl)phenyl]-3-pyrrolidinecarboxamide is provided.
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