Novel 1,4-disubstituted-3-nitropyrazoles having antimicrobial, parasiticidal, and herbicidal activity are prepared by a reaction sequence of which the individual steps are conventional. The new 3-nitropyrazoles are characterized by a 1-substituent and a usually carbonyl-containing 4-substituent. The novel 3(5)-nitro-4-pyrazole-carbonitrile is obtained as an intermediate in the preparation of the biologically-active compounds. Preferred compounds are 1-alkyl or -alkenyl-4-pyrazolecarboxamides and carbonitriles. The new compounds are particularly useful for the control of bacterial animal diseases.
制备具有抗微
生物、杀寄生虫和除草活性的新型1,4-二取代-
3-硝基吡唑的方法是通过一系列反应步骤完成的,这些步骤是常规的。这些新的
3-硝基吡唑具有1-取代基和通常含有羰基的4-取代基。在制备
生物活性化合物的过程中,获得了新型的3(5)-硝基-4-
吡唑-碳腈中间体。优选化合物是1-烷基或-烯基-4-
吡唑甲酰胺和碳腈。这些新化合物特别适用于控制细菌动物疾病。