title: Propargylic cation-induced intermolecular  electrophilic addition–semipinacol  rearrangement.
abstract: A novel propargylic electrophile-induced tandem intermolecular addition-semipinacol rearrangement was developed efficiently under mild conditions. Various allylic silylether substrates as well as Co-complexed propargylic species were applicable to this protocol and gave a series of synthetically useful β-propargyl spirocyclic ketones in moderate to good yields. Its synthetic application was also demonstrated by an efficient construction of the key tricyclic moiety of daphlongamine E.
authors.forename: Hui
authors.initials: H
authors.lastname: Shao
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Zhang
authors.forename: Shao-Hua
authors.initials: SH
authors.lastname: Wang
authors.forename: Fu-Min
authors.initials: FM
authors.lastname: Zhang
authors.forename: Yong-Qiang
authors.initials: YQ
authors.lastname: Tu
authors.forename: Chao
authors.initials: C
authors.lastname: Yang