Enantioselective Total Synthesis of (+)-Hagen's Gland Lactones
作者:Santosh J. Gharpure、Laxmi Narayan Nanda、Manoj Kumar Shukla
DOI:10.1002/ejoc.201101328
日期:2011.11
Enantioselectivesynthesis of Hagen's gland lactone is described. The enantiomerically enriched diol was prepared by organocatalytic α-oxidation of the aldehyde. The other key reactions involved a highly diastereoselective intramolecular cyclopropanation of vinylogous carbonates to furnish donor–acceptor-substituted cyclopropanes and their ring opening and iodolactonization followed by reduction.