Certain benzoyl chloride phenylhydrazones have been found to be active against insects and mites. The benzoyl ring and the phenylhydrazone ring can be substituted with a halogen atom, a nitro group, or an alkyl group of from 1 to 6 carbon atoms, inclusive. A new class of pentahalobenzoyl chloride phenylhydrazones is described, particularly pentafluorobenzoyl chloride phenylhydrazones. A further new class of alkylbenzoyl chloride phenylhydrazones, particularly p-toluoyl chloride phenylhydrazones are also described. The compounds are prepared by reacting a benzoic acid phenylhydrazide with phosphorus pentachloride to obtain a benzoyl chloride (dichlorophosphinyl)phenylhydrazone that is reacted with phenol to produce the desired benzoyl chloride phenylhydrazones. Certain of the compounds can be prepared by direct chlorination of a benzaldehyde phenylhydrazone. Methods of use and compositions are described.
某些
苯甲酰氯苯
肼已被发现对昆虫和螨类具有活性。苯甲酰环和苯
肼酮环可被卤素原子、硝基团或含有1至6个碳原子的烷基取代。描述了一种新类五卤
苯甲酰氯苯
肼,特别是
五氟苯甲酰氯苯
肼。还描述了一种新类烷基
苯甲酰氯苯
肼,特别是对
甲酰氯苯
肼。这些化合物通过将
苯甲酸苯
肼与
五氯化磷反应制备
苯甲酰氯(二
氯磷基)苯
肼,然后与
酚反应制备所需的
苯甲酰氯苯
肼。其中一些化合物可通过对
苯甲醛苯
肼直接进行
氯化制备。描述了使用方法和组成物。