title: Brønsted acid-mediated Nazarov cyclization of vinylallenes.
abstract: Treatment of siloxy enynes with base leads to the corresponding vinylsiloxyallenes which undergo Nazarov cyclization in the presence of trifluoroacetic acid to provide the cyclized product as a mixture of regioisomers in moderate to good overall yield.
authors.affiliation: Department of Chemistry, University of Alberta, E3-43 Gunning-Lemieux Chemistry Centre, Edmonton, AB, Canada T6G 2G2.
authors.forename: Yen-Ku
authors.initials: YK
authors.lastname: Wu
authors.forename: F G
authors.initials: FG
authors.lastname: West