title: Gold-catalyzed formation of oxonium ions from enynes and their intra- and intermolecular trapping with allylsilanes.
abstract: Gold-catalyzed ring closure of 1,5-enyne containing a silyl ether at the allylic position induces a skeletal rearrangement to form an oxonium intermediate, which then undergoes a smooth allylation in both an intra- and intermolecular manner. In the intramolecular allyl transfer, the additive alcohol becomes positioned on the silicon of the silyl ether by forming a new Si-OR bond, whereas, in the intermolecular allylation, the alcohol is incorporated in the homoallylic carbon by forming a C-OR bond.
authors.affiliation: Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA.
authors.forename: Jingwei
authors.initials: J
authors.lastname: Li
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Liu
authors.forename: Daesung
authors.initials: D
authors.lastname: Lee