Studies On Synthesis And Properties Of Dichloroallyl Ether Compounds With Biological Activities

Dichloroallyl ether compounds have become the hot point in new pesticide discovery due to their good insecticidal activity.In this thesis the latest research development of dichloroallyl ether compounds was reviewed,biological activities of dichloroallyl ether compound based pesticides were introduced,and 25 new dichloroallyl ether compounds with the pyridine heterocyclic structure synthesized,and their structures were characterized by IR,1H NMR and LC/MS.According to the structures,the 25 compounds can be divided into two series as following:(1)The dichloroallyl ether compounds containing o-nitropyridine heterocyclics(?)(2)The dichloroallyl ether compounds containing p-nitropyridine heterpcyclics(?)The biological activity of the 25 compounds was tested according to the Standard Operation Procedure of the Bioassay Department of the National South Pesticide R&D Center.The results showed that compounds exhibited excellent insecticidal activity besides ? o against Mythimna separate at a concentration of 500 mg/L.Compounds ? i??d??1?? m could above 100%control against Mythimna separata at a concentration of 25 mg/L.