摘要 :
The herbicidal activities of a series of 1,2,4-trizzolo[15-a]pyrimidine-2-sulfonanilides containing various substituents on the benzene ring were quantitatively analyzed with physicochemi- cal parameters by using Hansch-Fujita met...
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The herbicidal activities of a series of 1,2,4-trizzolo[15-a]pyrimidine-2-sulfonanilides containing various substituents on the benzene ring were quantitatively analyzed with physicochemi- cal parameters by using Hansch-Fujita method. Variations in the activity were parabolically related to electronic parameters with the optimum pK_a value being about 6.93. The hydrophobic factor in addition to the electronic property seemed to have important effect on the activity.
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