Studies on herbicidal 2,3-dicyanopyrazines. Part I. Structure-activity relationship of herbicidal 2,3-dicyano-5-substituted pyrazines.
نویسندگان
چکیده
منابع مشابه
Molecular Descriptors Family on Structure- Activity Relationships: Modeling Herbicidal Activity of Substituted Triazines Class
Herbicidal activity of a set of thirty 1,3,5-substituted-triazines were studied using an original structure-activity relationships approach. The cross-validation leave-one-out correlation score, the training vs. test analysis, and the model stability sustained the prediction ability of the best performing multi-varied model with four variables. The comparison with the previous reported model wa...
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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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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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With the objective of finding valuable herbicidal candidates, a series of new 5-heterocycloxy-3-methyl-1-substituted-1H-pyrazoles were synthesized and their herbicidal activities were evaluated. The bioassay results showed that some compounds exhibited excellent herbicidal activities at the concentration of 100 mg/L, and compound 5-chloro-2-((3-methyl-1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl)ox...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1983
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.47.1555