Abstract: 3-Benzoyl-1-phenyl-2-thioureas are disclosed as insecticides, miticides and nematicides.

Abstract: Certain alkanoyl chloride phenylhydrazones have been found to be active against insects and mites, and also active as herbicides. The phenylhydrazone ring can be substituted. Suitable substituent groups are halogen atoms, the nitro group, the trifluoromethyl group, and alkyl groups of from 1 to 6 carbon atoms, inclusive. The compounds are prepared by reacting an alkanoic acid phenylhy-drazide with phosphorus pentachloride to obtain an alkanoyl chloride (dichlorophosphinyl)phenylhydrazone intermediate that is reacted with phenol to produce the desired alkanoyl chloride phenylhydrazone. Certain compounds can be prepared by direct chlorination of an alkanaldehyde phenylhydrazone. Some of the compounds are novel. Methods of use and compositions are described.

Abstract: 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.

Abstract: Certain new ar or ar' (alkylthio) benzoyl chloride phenylhydrazones have been found to be anthelmintics and active against arthropod pests. The benzoyl ring and the phenylhydrazone ring can be otherwise substituted with, for example, halogen atoms, nitro groups, .alpha.-fluoroalkyl groups, other alkylthio groups, and alkyl groups. The new compounds are prepared by reacting an ar or ar' (alkylthio) benzoic acid 2-phenylhydrazide with phosphorus pentachloride to obtain an ar or ar' (alkylthio) benzoyl chloride (dichlorophosphinyl)phenylhydrazone that is reacted with phenol to produce the desired ar or ar' (alkylthio) benzoyl chloride phenylhydrazones. Certain of the compounds can be prepared by direct halogenation of (alkylthio)benzaldehyde phenylhydrazone or an (alkylthio)benzoyl chloride phenylhydrazone. Methods of anti-arthropodal use and novel formulations for use are also described.

Abstract: Certain benzoyl chloride phenylhydrazones have been found to be active against insects and mites, and they have also been found to be effective, broad-spectrum anthelmintics for suppressing parasitic worms in animals, particularly sheep. 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. 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 using the new compounds and new anthelmintic formulations are described.

Abstract: This invention relates to a new method of using and formulations of pyruvoyl chloride phenylhydrazones of the formula ##SPC1##Wherein Y is selected from the group consisting of chloro, bromo, nitro and trifluoromethyl and Y' has the same meaning as Y and in addition hydrogen, that have been found to be effective broad spectrum anthelmintics for suppressing parasitic worms in animals. The compounds are readily prepared by conventional chemical reactions.

Abstract: Certain new ar or ar' (alkylthio) benzoyl chloride phenylhydrazones have been found to be anthelmintics and active against arthropod pests. The benzoyl ring and the phenylhydrazone ring can be otherwise substituted with, for example, halogen atoms, nitro groups, .alpha.-fluoroalkyl groups, other alkylthio groups, and alkyl groups. The new compounds are prepared by reacting an ar or ar' (alkylthio) benzoic acid 2-phenylhydrazide with phosphorus pentachloride to obtain an ar or ar' (alkylthio) benzoyl chloride (dichlorophosphinyl)phenylhydrazone that is reacted with phenol to produce the desired ar or ar' (alkylthio) benzoyl chloride phenylhydrazones. Certain of the compounds can be prepared by direct halogenation of (alkylthio)benzaldehyde phenylhydrazone or an (alkylthio)benzoyl chloride phenylhydrazone. Methods of anti-arthropodal use and novel formulations for use are also described.