【摘要】 以单取代苯磺酰脲除草剂NK92825和NK94827为基础,将三氟甲基引入嘧啶环中,设计合成了17个新的4′-三氟甲基嘧啶苯磺酰脲化合物,产物结构均经1H NMR及元素分析确证.目标化合物经盆栽试验,结果表明,部分化合物有较好的除草活性.更多还原

【Abstract】 Seventeen new sulfonylurea derivatives with trifloromethyl group in the pyrimidine ring were designed and synthesized,based on NK92825 and NK94827. Their structures were confirmed by 1H NMR and elemental analysis. Preliminary herbicidal activities of these new sulfonylurea compounds were determined by pot bioassay experiments at dosage of 375 g/ha. The results show that some derivatives display good heribicidal activities.更多还原