Amine-induced Michael/Conia-ene cascade reaction: application to a formal synthesis of (+/-)-Clavukerin A
- PMID: 20028120
- DOI: 10.1021/ol902567e
Amine-induced Michael/Conia-ene cascade reaction: application to a formal synthesis of (+/-)-Clavukerin A
Abstract
An efficient and versatile amine-induced Michael/Conia-ene cascade cyclization reaction has been developed for establishing 6,6- and 5,7-bicyclic fused carbocycles with simple acyclic beta-ketoesters as the substrates in one-pot condition and this new cyclization method has been successfully utilized in a formal synthesis of (+/-)-Clavukerin A.