title: Rhodium(I)-catalyzed cycloisomerization of alkene-substituted allenylcyclopropanes: stereoselective formation of bicyclo[4.3.0]nonadienes.
abstract: A productive channel for pent-up energy: The [{RhCl(CO)2 }2 ]-catalyzed ring-opening of both E and Z 1-cyclopropylocta-1,2,6-trienes exclusively produced cis-4,5-dimethylbicyclo[4.3.0]nona-1(9),2-dienes with three contiguous stereogenic centers. When this transformation was applied to the 1,2,7-triene double-bond isomers, the same products were formed in a completely stereoselective manner.
authors.affiliation: Division of Pharmaceutical Sciences, Graduate School of Medical Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 (Japan) http://www.p.kanazawa-u.ac.jp/∼yakuzou/11indexen.html.
authors.forename: Katsuya
authors.initials: K
authors.lastname: Sugikubo
authors.forename: Fukiko
authors.initials: F
authors.lastname: Omachi
authors.forename: Yuuki
authors.initials: Y
authors.lastname: Miyanaga
authors.forename: Fuyuhiko
authors.initials: F
authors.lastname: Inagaki
authors.forename: Chiaki
authors.initials: C
authors.lastname: Matsumoto
authors.forename: Chisato
authors.initials: C
authors.lastname: Mukai
keywords: allenes; cycloisomerization; cyclopropanes; rhodium; stereoselectivity