title: Catalytic cycloisomerization of 1,5-enynes to 1,3-cyclohexadienes via ruthenium vinylidene intermediates.
abstract: Another way to dienes: The ruthenium-catalyzed 6-endo-cycloisomerization of 1,5-enynes gives the corresponding 1,3-cyclohexadienes in high to excellent yields. This novel synthetic and catalytic method constitutes another way to selectively prepare 1,3-cyclohexadienes, this cyclic diene skeleton being a core subunit in many natural products and a useful building block for a variety of organic transformations.
authors.affiliation: Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Fukamizu
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Miyake
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Nishibayashi