blepharocalyx is reported. We have shown that a stereochemical preference exists for a syn configuration between the anomeric aryl substituents, representative of the C-7 and C-7′ substituents in the natural products. Further, our results show that stereocontrol is under kinetic control, and calculations suggest that a favorable π-stacking interaction may be the source of this stereocontrol.
报道了一种常见的
四氢吡喃并色烯环系统的非对映选择性合成,这些环系统对几种山姜属的
天然产物分离株很常见。我们已经表明,异头芳基取代基之间的顺式构型存在立体
化学偏好,代表
天然产物中的C -7 和C -7' 取代基。此外,我们的结果表明立体控制受动力学控制,计算表明有利的 π 叠加相互作用可能是这种立体控制的来源。