Herbicidal Activity of Some Pyridazine Derivatives
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چکیده
منابع مشابه
Herbicidal Activity of Mimosine and Its Derivatives
Mimosine [β-[N-(3-hydroxy-4-oxypyridyl)]-α-aminopropionic acid] is a non-protein amino acid, and is a major compound present in all plant parts of Mimosaceae, which includes Leucaena (Leucaena leucocephala), Leucaena glauca, and other legumes belonging to Mimosa spp.. Structurally, mimosine is an analog of dihydroxyphenylalanine with a 3-hydroxy-4-pyridone ring instead of a 3,4-dihydroxy-phenyl...
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4-(2-(4-Halophenyl)hydrazinyl)-6-phenylpyridazin-3(2H)-ones 1a,b were prepared and treated with phosphorus oxychloride, phosphorus pentasulphide and ethyl chloroformate to give the corresponding chloropyridazine, pyridazinethione, oxazolopyridazine derivatives 2-4, respectively. Compound 2 reacted with hydrazine hydrate to afford hydrazinylpyridazine 7. The reaction of 4-(2-(4-chlorophenyl)hydr...
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Coupling of compound 1 with diazotized aromatic amines in ethanol afforded the arylhydrazones 3a,b. Fusion of 3a,b with active methylene derivatives 4a,b afforded the pyridazine derivatives 6a–d. Also, when compounds 6b,c were reacted with elemental sulphur afforded the thienopyridazine derivatives 7a,b. Treatment of compound 8 with hydrazine hydrate produced pyrazolopyridine derivative 9. Pyri...
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interest in agrochemicals and drugs. Aryl group substituted pyrazoles and imidazoles, in particular, have been studied because their biological activities are strongly dependent on their substituents on the pyrazole ring system. 1,5-Diaryl substituted pyrazole (SR141716A, 1), which has a hydrazide group on the 3-position of the pyrazole ring, has recently been synthesized and identified as the ...
متن کاملSynthesis and Herbicidal Activity of New Hydrazide and Hydrazonoyl Derivatives
Three new hydrazide and five new hydrazonoyl derivatives were synthesized. The chemical structures of these compounds were confirmed by 1H-NMR, IR spectroscopy and elemental analysis. The prepared compounds were tested for their activity to inhibit photosynthetic electron transport in spinach chloroplasts and growth of the green algae Chlorella vulgaris. IC50 values of these compounds varied in...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1965
ISSN: 0002-1369
DOI: 10.1080/00021369.1965.10858364