Collect. Czech. Chem. Commun. 1979, 44, 1761-1771
https://doi.org/10.1135/cccc19791761

The synthesis, spectral properties and pesticidal activity of O-(1-benzyl, cyclohexyl, methyl-5-ethoxy, methoxy, methylthio-6-oxo-1H-pyridazin-4-yl) esters of phosphoric, thiophosphoric and thiophosphonic acids

Václav Konečný and Štefan Varkonda

Research Institute for Agrochemical Technology, 810 04 Bratislava

Abstract

The synthesis of O-(5-ethoxy-1-methyl-6-oxo-1H-pyridazin-4-yl), O-(5-methoxy-1-benzyl-6-oxo-1H-pyridazin-4-yl), O-(5-methylthio-1-methyl-6-oxo-1H-pyridazin-4-yl) and O-(5-methoxy-1-cyclohexyl-6-oxo-1H-pyridazin-4-yl) esters of phosphoric, thiophosphoric and thiophosphonic acids is described. The IR and UV spectra of the synthetized compounds were measured and interpreted and their contact and systemic insecticidal, acaricidal and ovicidal activity was determined. Several of the compounds tested displayed high activity.