Annulation of the Cyclohexane Ring by Tandem Free Radical Alkylation of a Nonactivated δ-Carbon Atom−Intramolecular Carbanion Cycloalkylation
作者:Goran Petrovic、Zivorad Cekovic
DOI:10.1021/ol0062401
日期:2000.11.1
cyclohexane ring by a combination of freeradical and ionic reactions sequences was achieved. Freeradical alkylation of the remote nonactivated delta-carbon atom involves addition of delta-carbon radicals, generated by 1,5-hydrogen transfer in alkoxy radical intermediates, to radicophilic olefins, while the polar sequence involves enolate anions as intermediates which undergo a cycloalkylation reaction. Thus