Method for producing sulfone derivatives
The method addresses the challenges of high costs and impurity issues in sulfone derivative production by using hydrogen peroxide or alkali metal persulfates, ensuring high yields and minimal sulfoxide byproducts, suitable for industrial herbicide production.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- KUMIAI CHEM IND CO LTD
- Filing Date
- 2026-04-01
- Publication Date
- 2026-07-07
AI Technical Summary
Existing methods for producing sulfone derivatives, such as pyroxasulfone, face challenges including high costs due to the use of expensive oxidizing agents like m-chloroperbenzoic acid, handling issues, and the presence of sulfoxide byproducts that are difficult to separate, leading to reduced product quality and potential phytotoxicity.
A method involving the oxidation of sulfide derivatives using hydrogen peroxide or alkali metal persulfates as oxidizing agents without transition metals, under specific conditions, effectively minimizing sulfoxide byproducts and enabling efficient industrial-scale production.
The method achieves high yields of sulfone derivatives with minimal sulfoxide impurities, is economically viable, and environmentally friendly, suitable for large-scale herbicide production.
Smart Images
Figure 2026113564000001 
Figure 2026113564000002 
Figure 2026113564000003