title: Palladium-catalyzed intramolecular decarboxylative allylic arylation of alpha-aryl-gamma-methylidene-delta-valerolactones.
abstract: A palladium-catalyzed intramolecular decarboxylative cyclization of alpha-aryl-gamma-methylidene-delta-valerolactones, followed by olefin isomerization, has been developed to give fused polycyclic aromatic compounds under mild conditions. The process described here can be regarded as a formal decarboxylative allylic arylation without using a pre-formed organometallic nucleophile. The reaction can be conducted on a gram scale and the products thus obtained are further derivatized with ease.
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan. shintani@kuchem.kyoto-u.ac.jp
authors.forename: Ryo
authors.initials: R
authors.lastname: Shintani
authors.forename: Takaoki
authors.initials: T
authors.lastname: Tsuji
authors.forename: Soyoung
authors.initials: S
authors.lastname: Park
authors.forename: Tamio
authors.initials: T
authors.lastname: Hayashi