ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Synthesis, spectral properties, and pesticidal activity of 4,5-dichloro-2-R-3-oxo-2H-pyridazines

V. Konečný, Š. Kováč, and Š. Varkonda

Research Institute of Agrochemical Technology, CS-836 03 Bratislava

Abstract:  A synthesis and infrared and ultraviolet spectra of 4,5-dichloro-2-R-3-oxo-2H-pyridazines are reported. All the compounds prepared were tested on inhibition of the Cholinesterase activity but none of them reached the activity of the used standard. The fungicidal activity of all compounds was measurable or very high mainly against fungi T. foetida. In the test on the inhibition of the Hill reaction 2-cyclohexyl-4,5-dichloro-3-oxo-2H-pyridazine, 2-phenyl-4,5-dichloro-3-oxo-2H-pyridazine, and 2-(m-tolyl)-4,5-dichloro-3-oxo-2H-pyridazine showed 5—10 times higher herbicidal activity than the Pyramin standard.

Full paper in Portable Document Format: 382a239.pdf

Chemical Papers 38 (2) 239–246 (1984)