Intramolecular OH/π versus C–H/O H-Bond-Dependent Conformational Control about Aryl–C(sp<sup>3</sup>) Bonds in Cannabidiol Derivatives
作者:Clément Denhez、Pedro Lameiras、Hatice Berber
DOI:10.1021/acs.orglett.9b02484
日期:2019.9.6
Conformationalcontrol in cannabidiol derivatives has been studied by NMR, XRD, and DFT. The stabilization of their axial M and P conformations about the aryl-C(sp3) bond is an effect of competing intramolecular OH/π and CH/O H-bonds. In a nonpolar solvent and in the solid state, the OH/π bond is a determinant of the M conformation. In polar solvents, the CH/O H-bond shifts the equilibrium toward the
大麻二酚衍生物的构象控制已通过NMR,XRD和DFT研究。它们关于芳基-C(sp3)键的轴向M和P构象的稳定是竞争分子内OH /π和CH / O H键的作用。在非极性溶剂和固态中,OH /π键是M构象的决定因素。在极性溶剂中,由于OH /π键的断裂,CH / O H键使平衡向P构象异构体移动。
Atropisomerism about aryl–C(sp<sup>3</sup>) bonds: chemically driven rotational pathway in cannabidiol derivatives
作者:Clément Denhez、Pedro Lameiras、Hatice Berber
DOI:10.1039/d3ob01617j
日期:——
monoterpene ring close to the pivot bond. Extended analysis of TS structures to previously reported phenyl derivatives bearing the same O-substituent led to similar rotational pathways according to the series: through TS1 in arylcylohexenes and TS2 in arylcyclohexanes. Likewise, conversion of arylcyclohexenes into both series affects the rotation speed by decelerating it, and the nature of the arylring seems