title: Rh-catalyzed cyclization of diynes and enynes initiated by carbonyl-directed activation of aromatic and vinylic C-H bonds.
abstract: The Rh-catalyzed hydroarylative and hydrovinylative cyclization of diynes with aryl ketones or enones gave monocyclic 1,3-dienes. Enynes also underwent the same reaction and chiral products were obtained with high ee using a chiral Rh catalyst. Carbonyl-directed activation of aromatic and vinylic C-H bonds is likely the initial step in the present transformation.
authors.affiliation: Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Okubo, Tokyo, 169-8555, Japan.
authors.forename: Kyoji
authors.initials: K
authors.lastname: Tsuchikama
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Kuwata
authors.forename: Yu-ki
authors.initials: YK
authors.lastname: Tahara
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Yoshinami
authors.forename: Takanori
authors.initials: T
authors.lastname: Shibata