Enantioselective Synthesis of Cuparane Sesquiterpenes. Synthesis of (−)-Cuparene and (−)-δ-Cuparenol
作者:Antonio Abad、Consuelo Agulló、Manuel Arnó、Ana C. Cuñat、M. Teresa García、Ramón. J. Zaragozá
DOI:10.1021/jo960463g
日期:1996.1.1
(-)-Cuparene land (-)-delta-cuparenol, two cuparane-type sesquiterpenoids, were synthesized from beta-cyclogeraniol in 47% and 27% overall yield, respectively, using a Katsuki-Sharpless asymmetric epoxidation, a pinacollic rearrangement, and a Robinson annulation as key synthetic steps.
On the configuration and occurrence of 2,6-cyclocuparan-3-ols: Resolving a lasting discrepancy
作者:Dragan B. Zlatković、Miljana R. Đorđević Zlatković、Niko S. Radulović
DOI:10.1016/j.phytochem.2022.113566
日期:2023.3
major volatiles of several liverwort species. Conflicting reports on the structures of these cyclocuparanols can be found in the literature–different research groups assigned the same spectral data to different structures, yet these inconsistencies were never addressed, let alone satisfactorily explained. Following the isolation of all four diastereoisomeric cyclocuparanols from Marchantia polymorpha,