【摘要】 为寻求具有较高生物活性的农药新品种,根据亚活性拼接原理,将吡嗪环和氨基脲结构进行亚活性结构拼接,设计并合成了26个未见文献报道的吡嗪氨基脲类化合物,其结构均经1H NMR,FTIR和MS确证,同时对化合物进行了初步除草活性测试.活性测试结果表明,在浓度为150 gai/ha时,4m对反枝苋、鳢肠的芽后抑制率达到80%.更多还原

【Abstract】 To find new pesticidal lead compounds with high bioactivity, 26 new pyrazines emicarbazide derivatives were designed and synthesized by combining with the pyrazine ring and semicarbazide. Their structures were confirmed by1H NMR, FTIR and MS techniques. The herbicidal activities of these compounds were evaluated. The bioassay results showed that the post-emergence inhibitory rate of 4m reached 80% on Amaranthus retroflexus and Eclipta prostrata at 150 gai/ha.更多还原