Syntheses and insecticidal activities of novel 2,5-disubstituted 1,3,4-oxadiazoles
作者:Xiumian Zheng、Zhong Li、Yanli Wang、Weidong Chen、Qingchun Huang、Chuanxiang Liu、Gonghua Song
DOI:10.1016/s0022-1139(03)00168-4
日期:2003.10
Nine novel symmetrical and asymmetrical 2,5-disubstituted 1,3,4-oxadiazoles have been synthesized by a facile and mild method with high yield. Meantime, it was found that the fluorine was easy substituted by hydrazine in polyhalogen-substituted aroyl hydrazine. The preliminary bioassay tests show that two of the compounds (D5 and D6) exhibited a significant insecticidal activity (LC50=116.02 and 70
通过简便,温和的方法合成了九种新颖的对称和不对称的2,5-二取代的1,3,4-恶二唑。同时,发现在多卤素取代的芳酰基肼中,氟易于被肼取代。初步的生物测定测试表明,两种化合物(D5和D6)对粘虫(Leucania separata Walker )表现出显着的杀虫活性(LC 50 = 116.02和70.93 mg l -1)。使用药物发现工作台(DDW)(Cerius 2),研究了结构与活性之间的关系。