title: Domino synthesis of fluorine-substituted polycyclic aromatic hydrocarbons: 1,1-difluoroallenes as synthetic platforms.
abstract: Rather crafty: 1,1-Difluoroallenes bearing an aryl group and a cyclopentene moiety undergo indium(III)-catalyzed Friedel-Crafts-type cyclization with subsequent ring expansion and dehydrogenation to afford fluorinated polycyclic aromatic hydrocarbons in high yields. The introduction of an Ar group was effected by in situ halogenation of the intermediary indium species and a subsequent Suzuki-Miyaura reaction.
authors.affiliation: Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
authors.forename: Kohei
authors.initials: K
authors.lastname: Fuchibe
authors.forename: Yuka
authors.initials: Y
authors.lastname: Mayumi
authors.forename: Nan
authors.initials: N
authors.lastname: Zhao
authors.forename: Shumpei
authors.initials: S
authors.lastname: Watanabe
authors.forename: Misaki
authors.initials: M
authors.lastname: Yokota
authors.forename: Junji
authors.initials: J
authors.lastname: Ichikawa
keywords: allenes; arenes; cyclization; fluorine; indium