Iodobenzene-Catalyzed Intramolecular Oxidative Cyclization Reactions of δ-Alkynyl β-Ketoesters
作者:Arantxa Rodríguez、Wesley J. Moran
DOI:10.1021/ol200471w
日期:2011.5.6
Iodobenzene is shown to catalyze the 5-exo-dig cyclization of δ-alkynyl β-ketoesters under oxidative conditions that generatehypervalentiodinespecies in situ. The cyclopentane products contain adjacent quaternary and tertiary stereocenters which are generated with excellent diastereoselectivity.