title: Chemoselective cyclizations of divinyl ketones to cyclohexenones mediated by Lewis acid and base.
abstract: [reaction: see text] Chemoselective cyclizations of divinyl ketones to cyclohexenones mediated by a sterically demanding Lewis acid and an amine base have been accomplished under mild reaction conditions. The extension of this methodology to the synthesis of eight-membered rings is also demonstrated.
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, USA. magomedov@chem.rochester.edu
authors.forename: Nabi A
authors.initials: NA
authors.lastname: Magomedov
authors.forename: Piero L
authors.initials: PL
authors.lastname: Ruggiero
authors.forename: Yuchen
authors.initials: Y
authors.lastname: Tang