| Literature DB >> 25376022 |
Ya-Ting Lin1, Feng-Yi Lin, Minoru Isobe.
Abstract
A stereocontrolled synthesis of the ABC rings of solanoeclepin A has been achieved. The seven-membered ring B was synthesized by an intramolecular Prins-ene reaction between an aldehyde and an enyne-dicobalthexacarbonyl complex. The acetylene in this synthesis plays multiple roles: to join the A and C rings, to allow stereoselective cyclization via dicobalthexacarbonyl complexation, and to facilitate Nicholas cation stabilization followed by deprotonation to form an endo-cyclic olefin (Nicholas-Prins cyclization).Entities:
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Year: 2014 PMID： 25376022 DOI： 10.1021/ol5029755
Source DB: PubMed Journal: Org Lett ISSN： 1523-7052 Impact factor: 6.005