title: Synthesis of differentially substituted hexaethynylbenzenes based on tandem Sonogashira and Negishi cross-coupling reactions.
abstract: [reaction: see text] Synthesis of polyethynyl-substituted aromatic compounds was achieved efficiently by the use of the Negishi cross-coupling reaction, and this method, coupled with the Sonogashira reaction, was applied to the synthesis of differentially substituted hexaethynylbenzenes from chloroiodobenzenes.
authors.affiliation: Department of Chemistry, Faculty of Engineering Science, Osaka University, and CREST, Japan Science and Technology Corporation (JST), Toyonaka, Osaka 560-8531, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Sonoda
authors.forename: A
authors.initials: A
authors.lastname: Inaba
authors.forename: K
authors.initials: K
authors.lastname: Itahashi
authors.forename: Y
authors.initials: Y
authors.lastname: Tobe