Asymmetric aromatic diselenide compounds and use thereof in the preparation of pesticides

By synthesizing asymmetric aromatic diselenyl ether compounds and their salts, the problem of poor efficacy of existing pesticides against plant viral and fungal diseases has been solved, achieving highly efficient control of tobacco mosaic virus and various agricultural fungi.

CN122586776APending Publication Date: 2026-08-18NANKAI UNIV
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Patent Information

Application Number
CN202510199516.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-08-18

AI Technical Summary

Technical Problem

Existing pesticides are ineffective in controlling plant viral and fungal diseases, especially tobacco mosaic virus and various agricultural fungi.

Method used

Asymmetric aromatic diselenide compounds and their salts are synthesized and prepared through specific reactions to produce compounds with highly efficient antiviral and bactericidal activities against plant viruses. These compounds include lithium, sodium, potassium, and ammonium salts, and are formulated as emulsifiable concentrates, wettable powders, soluble powders, water emulsions, microemulsions, aqueous solutions, suspensions, microcapsules, or water-dispersible granules.

Benefits of technology

At effective concentrations, the compound exhibits highly effective control of tobacco mosaic virus, various plant viruses, and agricultural fungi, with a bactericidal activity of 92.3%, a live inactivation efficacy of 71.6%, a live protective efficacy of 58.3%, and a live curative efficacy of 60.1%.

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Abstract

This invention relates to a class of asymmetric aromatic diselenyl ether compounds and their uses in pesticide preparation, particularly in the preparation of antiviral agents and fungicides. The asymmetric aromatic diselenyl ether compounds of this invention exhibit excellent control efficacy against tobacco mosaic virus (TMV) at a concentration of 500 mg / L, with a live inactivation efficacy of 71.6%, a live protective efficacy of 58.3%, and a live curative efficacy of 60.1%. At a concentration of 50 mg / L, the asymmetric aromatic diselenyl ether compounds of this invention also show excellent control effects against early blight of tomato, scab of wheat, rice blast, Phytophthora blight of pepper, sclerotinia rot of rapeseed, gray mold of cucumber, sheath blight of rice, wilt of cucumber, brown spot of peanut, ring rot of apple, sheath blight of wheat, small leaf spot of corn, anthracnose of watermelon, and bakanae disease of rice, with a fungicidal activity of up to 92.3%.
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