Innovation Herbicidal Activity Of The Pesticide Lead Compounds And Pesticides Dispersant

In order to search for compounds with higher herbicidal activity and dispersant with high disperse ability, this paper have designed three series of new compounds on the basis work of previous chemists: (1) by the reaction of 3-(furan-2-yl)-4-amino-5-mercapto-1,2,4-triazolos with substituted phenoxyacetyl isothiocyanates, nine new 3-(furan-2-yl)-6-substituted phenoxyacetamido-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole have been synthesized; (2) Four novel fluoro-functionalized arylimido substituted hexamolybadates have been prepared via the DCC dehydrating protocol of the reaction ofα-octamolybdate ion with substituted aniline hydrochloride; (3) A series copolymer dispersant based on monomers of sodium styrene sulfonate, acrylic acid, and rosin derivative were prepared by solution copolymerization using ammonium persulfate as initiator. All of these target compounds are new compounds and their structures were confirmed by IR, 1H NMR, MS and elementary analysis. Their physic-chemical properties, spectrum properties, reaction conditions and synthetic methods were discussed as well. The structural formulas of compounds (Ⅰ),(Ⅱ)and(Ⅲ)are as follows respectively: In order to investigate the relationship between the structure of the target compound and its property, we have characterized the arylimido substituted hexamolybadates (Ⅰ) by single crystal X-Ray diffraction analysis. In addition, the biological activities tests of the two series of compounds ((Ⅰ) and(Ⅱ)) were finished by Shanghai Branch of National Pesticide R&D South Central. The results indicated that some compounds display potent herbicidal activity.The influences of factors on the dispersing properties of this copolymer dispersant(Ⅲ)were studied, such as sodium styrene sulfonate, acrylic acid, rosin derivative and ammonium persulfate. At the same time, the function of the obtained disperant was carried out, and the results indicate that the disperant have good disperse ability.