کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1377004 | 981968 | 2006 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Estimation of the hydrophobicity of 2,4-diphenyl-1,3-oxazoline analogs and QSAR analysis of their ovicidal activity against Tetranycus urticae Estimation of the hydrophobicity of 2,4-diphenyl-1,3-oxazoline analogs and QSAR analysis of their ovicidal activity against Tetranycus urticae](/preview/png/1377004.png)
Partition coefficients of six 2-phenyl-1,3-oxazoline congeners containing 2-I, 2-NO2, 2-CF3, 2,6-(CH3)2, 2,6-F2, and 2-F-6-Cl substitutions on the phenyl moiety were measured in a 1-octanol/water system using the flask-shaking method. The effect on the hydrophobicity (Log P) of substituents on the phenyl moiety of 2-phenyl-1,3-oxazolines linearly correlated with that of benzamide congeners. log P values of other 2-(substituted phenyl)-1,3-oxazoline analogs were empirically estimated from the corresponding substituted benzamides. The ovicidal activity of 2-(substituted phenyl)-4-phenyl-1,3-oxazoline analogs against the two-spotted spider mite Tetranycus urticae was quantitatively analyzed using the classical QSAR (Hansch–Fujita) method. Results showed that ovicidal activity increases with hydrophobicity. The introduction of inductive electron-withdrawing groups at ortho-positions increased ovicidal activity, but addition of steric bulk was unfavorable. Substitution at either the meta- or para-position was detrimental to the acaricidal activity.
Log P (P, partition coefficient between 1-octanol and water) values of 2-(substituted phenyl)-1,3-oxazolines were experimentally measured and the QSAR analysis for the ovicidal activity of 2,4-diphenyl-1,3-oxazolines against the two-spotted spider mite Tetranycus urticae was executed.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry Letters - Volume 16, Issue 15, 1 August 2006, Pages 4080–4084