Nematicidal composition containing fluorine ensulfone and organophosphorus

Abstract

The invention discloses a nematicidal composition containing fluorine ensulfone and organophosphorus, and relates to the field of pesticides. The method comprises the following steps: adding N-aminoethyl 3-aminopropyl methyl dimethoxy silane and hexamethyldisiloxane into a dry three-neck flask, adding a catalyst to obtain an intermediate D, adding the intermediate D into a dry three-neck flask to obtain an intermediate E, and dropwise adding an ethylene glycol diglycidyl ether solution to obtain a surface active auxiliary agent. The method solves the problems that the existing pesticide is poor in wettability and large in surface tension, and is not easy to wet and spread on target biological leaf surfaces and root systems, so that the pesticide effect is reduced. The two silicon-containing hydrophilic groups extend into water, and the two benzene ring-containing hydrophobic groups extend into air or an organic solvent, so that obstacles are generated between the surfaces of pesticide particles, and the pesticide particles are prevented from getting close to each other to generate condensation and wet spreading on the leaf surfaces and root systems of target organisms, thereby achieving the purposes of reducing surface tension and improving pesticide effect.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a nematocidal composition containing fluorine sulfone and organic phosphorus. Background technique [0002] Plant nematodes can infect underground parts of plants such as roots, rhizomes, tubers and bulbs, causing significant external lesions in these parts, which not only reduces crop yields, but also reduces the quality of agricultural products, causing serious economic losses and seriously restricting the development of agricultural economy. develop; [0003] Fluorene sulfone is a metabolic inhibitor of plant parasitic nematodes in the process of obtaining energy reserves. It blocks the energy channels of nematodes through contact with nematodes and kills nematodes. Cyprophos is an organophosphate that has contact killing effect but has no systemic and fumigation effects. Nematode agent belongs to the class of aminine esterase inhibitors. Thiazophosphine is an organophosphorus nemat...

AI Technical Summary

Problems solved by technology

[0006] (1) Add alkylphenol polyoxyethylene ether and NaOH to the four-necked flask to obtain intermediate A, cool intermediate A, add allyl chloroacetate to obtain intermediate B, and intermediate B and NaHSO 3 Add solvent water, add co-solvent isopropanol and catalyst and mix evenly to obtain the penetration aid, which solves the problem of poor penetration ability to animal cell membranes;

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