Construction of the Tricyclic Furanochroman Skeleton of Phomactin A via the Prins/Conia-Ene Cascade Cyclization Approach
作者:Shuangping Huang、Guangyan Du、Chi-Sing Lee
DOI:10.1021/jo200644t
日期:2011.8.19
asymmetric Prins/Conia-ene cascade cyclization has been developed with In(OTf)3 in CH3CN from 0 to 70 °C. These conditions afforded very good yields of the 1-oxadecalin product in one pot and effectively suppressed the racemization of the 1-oxadecalin product with almost no enantiomeric excess (ee) loss. This cascade cyclization has been successfully employed for the construction of the highly functionalized