Research and Development of the Novel Herbicide ZJ0862

A novel herbicidal compound ZJ0862 was synthesized from salieylic aldehyde,3,4-dichloro-aniline and 4,6-dimethoxy-2-methyl sulfonyl pyrimidine.The chemical structure of the compound was confirmed by 1H NMR,MS,IR and elemental analysis.The bioassay indicated that ZJ0862 had good herbicidal activity to the important weeds in rice field,such as Echinochloa crus-galli and Cyperus difformis(inhibition rate 90%).And the inhihition rate for 15 common weeds such as Alopecurus aequalis,Avena fatua,Setaria viridis were 85%~100% at 45 g/hm2.It had broad spectrum weed control.The field trial showed that the compound(150 g/hm2) was safe to transplanted rice,and had good efficacy(81.3%~98.4%) to the mainly weeds in paddy,such as A.baccefera and L.procumbens,under the concentration of 60~90 g/hm2.Toxicological tests showed it was low toxicity,non irritating,slightly sensitisation and negative mutagenicity.ZJ0862 had good potential to dovelop in transplanted rice.