Collect. Czech. Chem. Commun. 1980, 45, 2343-2350

Synthesis, spectral properties and pesticide effect of pyridazinyl-4-oxy-1,3,2-dioxaphospholane-2-thione and 1,3,2-dioxaphosphorinane-2-thiones

Václav Konečný and Štefan Varkonda

Research Institute of Agrochemical Technology, 810 04 Bratislava


The synthesis of new 2-(1-alkyl, phenyl-5-alkoxy, alkylthio, chloro-6-oxo-1H-pyridazinyl-4-oxy)-1,3,2-dioxaphospholane-2-thiones and 1,3,2-dioxaphosphorinane-2-thiones is described. The synthesized products were characterized by IR and UV spectral data and their contact and systemic insecticide, acaricide, ovicide and fungicide activities were measured, the highest being found the ovicide effect.