| 摘要 |
<p>4,?-Dichloroimidazole compound of the formula (I) wherein X1 is hydrogen, chlorine, bromine or iodine; X2, X3 and X4 independently are hydrogen, chlorine or bromine; and X5 is hydrogen or chlorine; and x1 and X3 together can represent a C-C bond; and x2 and X4 together can represent a C-C bond; or x1 and x2 together can represent oxygen or the grouping -N - Y. in which Y is hydroxyl or a radical -NH-E1 or wherein R is hydrogen or alkyl with up to 4 carbon atoms; R1 is aryl or substituted aryl, the substituents being selected from halogen, alkyl, alkoxy, haloalkyl and nitro; Z is oxygen or sulfur; and R2, R3 and R4 independently are hydrogen or chlorine provided that X1, X2, X3, X4 and X5 do not simultaneously represent hydrogen, are oustandingly effecetive as herbicides.</p> |
