N-(Pyrid-3-yl)thioureas and Derivatives as Acaricides. I. Synthesis and Biological Properties

Article abstract of DOI:10.1002/ps.2780420402

In the course of optimization studies around diafenthiuron, the central aromatic nucleus linked directly to the thiourea unit was replaced by a pyridine moiety. A series of N-(pyrid-3-yl)thioureas, isothioureas and -carbodiimides was synthesised and evaluated for acaricidal activity. The synthetic methodology used and the screening results against some spider mites (Tetranychus spp. and Panonychus ssp.) are discussed.