Université de Reims Champagne Ardenne, CNRS, ICMR UMR 7312, 51097 Reims, France.
Université de Reims Champagne Ardenne, MaSCA, P3M, 51097 Reims, France.
Org Lett. 2019 Sep 6;21(17):6855-6859. doi: 10.1021/acs.orglett.9b02484. Epub 2019 Aug 20.
Conformational control in cannabidiol derivatives has been studied by NMR, XRD, and DFT. The stabilization of their axial and conformations about the aryl-C(sp) 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 conformation. In polar solvents, the CH/O H-bond shifts the equilibrium toward the conformer because of the breaking of the OH/π bond.
通过 NMR、XRD 和 DFT 研究了大麻二酚衍生物的构象控制。芳基-C(sp)键上轴向和 构象的稳定是分子内 OH/π 和 CH/O H 键竞争的结果。在非极性溶剂中和固态中,OH/π 键是 构象的决定因素。在极性溶剂中,由于 OH/π 键的断裂,CH/O H 键将平衡转向 构象体。