منابع مشابه
Triazines Herbicidal Assessed Activity
Correlation coefficients and associated squared values are used as assessment parameters in validation of structure-activity relationships. Seven correlation coefficients were calculated for models that characterized the relationship between chemical structure the herbicidal activity of a triazine analogues series. Three previously reported models were compared by using Pearson (rPrs), Spearman...
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The first examples of Cu-catalyzed γ-selective allylic alkenylation using organozinc reagents are reported. (E)-Alkenylzinc iodides were prepared by Fe-catalyzed reductive coupling of terminal arylalkynes with alkyl iodides. In the presence of a copper catalyst, these reagents reacted with allylic bromides derived from Morita-Baylis-Hillman alcohols to give 1,4-dienes in high yields. The reacti...
متن کاملHerbicidal 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...
متن کاملHerbicidal activity of glucosinolate-containing seedmeals
Sandra M. Duval Mark A. Berhow New Crops and Processing Technology Research, USDA, ARS, National Center for Agricultural Utilization Research, 1815 North University Street, Peoria, IL 61604 Defatted seedmeals from 15 glucosinolate-containing plant species were analyzed for herbicidal activity by determining inhibition of seedling emergence when added to a sandy loam soil containing wheat and si...
متن کاملSynthesis and herbicidal activity of substituted pyrazole isothiocyanates.
Isothiocyanates and substituted pyrazoles were combined to form a series of novel isothiocyanates with highly effective herbicidal activity. The target compounds were analyzed by elemental analysis, 1H-NMR, EI-MS and IR spectroscopy. The synthesized compounds, particularly compounds 3-1 and 3-7, exhibited good herbicidal activities against four weeds. The EC(50) values of compound 3-1 against E...
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ژورنال
عنوان ژورنال: Nature
سال: 1966
ISSN: 0028-0836,1476-4687
DOI: 10.1038/209098a0