aspersa. Substitution at the o- and/or p-positions of the phenyl ring with chlorine or bromine gave higher molluscicidal activity than the unsubstituted compound, with o,p-dichloro substitution being optimum. In addition, compounds containing two triazole moieties showed higher molluscicidal activity, particularly as stomach poisons, than the contact toxic effect of the corresponding compound with one triazole
已经合成了一系列新的
1,2,4-三唑衍
生物及其相应的
氨基甲酸酯,并通过两种施用方法(接触或麸皮)筛选了它们对两种类型的陆地蜗牛Helix aspersa和Theba pisana的杀虫活性。毒饵。几种受试化合物表现出良好的杀软体动物活性,而pisana烟草比H aspersa敏感。苯环的邻位和/或对位被
氯或
溴取代比未取代的化合物具有更高的杀菌活性,邻,对二
氯取代是最佳的。另外,与相应的化合物与一个三唑环的接触毒性作用相比,包含两个三唑部分的化合物显示出更高的杀软体动物活性,尤其是作为胃毒物。一般来说,