Tandem Phenolic Oxidative Amidation−Intramolecular Diels−Alder Reaction: An Approach to the Himandrine Core
作者:Huan Liang、Marco A. Ciufolini
DOI:10.1021/ol1003669
日期:2010.4.16
An oxidative cyclization of dienic sulfonamides mediated by iodobenzene diacetate in TFA, followed by a tandem intramolecular Die Is Alder reaction, achieves desymmetrization of a "locally symmetrical" dienone with good levels of diastereoselectivity and leads to valuable synthetic intermediates for the himandrine alkaloids.