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中文摘要：
以2-氨基-5-巯基-1,3,4-噻二唑和氯乙酸乙酯为原料,水相快速合成中间体（5-氨基-1,3,4-噻二唑-2-基）硫乙酸乙酯,该中间体再与芳氧乙酰氯反应,高产率得到6种目标化合物[5-（芳氧乙酰氨基）-1,3,4-噻二唑-2-基]硫乙酸乙酯（5a-5f）。所有这些化合物都经过了红外、元素分析以及核磁共振氢谱的表征。采用离体平皿法对目标化合物进行了除草活性试验,部分化合物显示出良好的除草活性,而小麦对其耐受。
英文摘要：
In aqueous media,2-（5-amino-1,3,4-thiadiazol-2-ylthio）acetate were synthesized by the reaction of 2-amino-5-mercapto-1,3,4-thiadiazole and ethyl chloroacetate. The later reacted with acyl chloride immediately to give the coresponding six novel 2-[5-（aryloxyacetyl）-amino-1,3,4-thiadiazol-2-ylthio]acetate derivatives（5a-5f）in high yield. All the products were characterized by IR,1 H NMR and elementary analysis. The herbicidal activities of target compounds were assessed. The preliminary bioassay results showed that some compounds exhibited moderate to strong herbicidal symptoms. At 10mg＆#183;L-1 ,S. tritici. showed tolerance,while E-. crus-galli L. ,E. Dahuricus,A. retroflexus and C. glaucum L. were killed or severely injured.
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