title: Platinum-catalyzed cycloisomerization of 1,4-enynes via 1,2-alkenyl rearrangement.
abstract: The cycloisomerization of 1,4-enyne 1 in the presence of platinum(II) catalyst afforded 1,2,3-trisubstituted 1H-indene 2 and 2' in good to excellent yields. The reaction proceeded through an unprecedented 1,2-alkenyl rearrangement that afforded a novel reaction topology of 1,4-enynes.
authors.affiliation: Department of Chemistry and Research, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
authors.forename: Takuma
authors.initials: T
authors.lastname: Sato
authors.forename: Toshiki
authors.initials: T
authors.lastname: Onuma
authors.forename: Itaru
authors.initials: I
authors.lastname: Nakamura
authors.forename: Masahiro
authors.initials: M
authors.lastname: Terada