Synthesis, NMR and molecular modeling studies on the stereochemistry of 2-aryl-3-(2?,4?-dinitrophenylthio)cyclohexenes
作者:V. C. Devanathan、S. Perumal、M. J. E. Hewlins、M. Ramalingam
DOI:10.1002/1097-458x(200006)38:6<463::aid-mrc660>3.0.co;2-9
日期:2000.6
Ten 2‐aryl‐3‐(2′,4′‐dinitrophenylthio)cyclohexenes were prepared, their 1H NMR spectra measured and chemical shifts assigned on the basis of nuclear Overhauser enhancements, H,H‐COSY spectra and other considerations. Analysis of the data suggests the preference of the conformer with (i) the arylthio group in the axial orientation and (ii) the dinitrophenyl group oriented away from the cyclohexene ring
制备了 10 种 2-芳基-3-(2',4'-二硝基苯硫基)环己烯,测量了它们的 1H NMR 谱,并根据核 Overhauser 增强、H,H-COSY 谱和其他考虑分配了化学位移。数据分析表明,具有 (i) 轴向取向的芳硫基和 (ii) 远离环己烯环取向的二硝基苯基的构象异构体的偏好。NOE 结果和分子建模计算也支持上述结论。版权所有 © 2000 John Wiley & Sons, Ltd.