title: Synthesis of Oligo(thienylene-vinylene) by Regiocontrolled Deprotonative Cross-Coupling.
abstract: Concise synthesis of oligo(thienylene-vinylene) with a head-to-tail type structure is achieved by regioselective deprotonative coupling of 3-hexylthiophene. The palladium catalyzed reaction of 3-hexylthiophene with (E)-2-(2-bromoethenyl)-3-hexylthiophene takes place to afford head-to-tail type trans-1,2-dithienylethene. Further extension of a vinylthiophene unit is similarly performed in an iterative manner.
authors.affiliation: Department of Chemical Science and Engineering, Kobe University , 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
authors.forename: Shota
authors.initials: S
authors.lastname: Tanaka
authors.affiliation: Department of Chemical Science and Engineering, Kobe University , 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
authors.forename: Yuta
authors.initials: Y
authors.lastname: Fukui
authors.affiliation: Department of Chemical Science and Engineering, Kobe University , 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Nakagawa
authors.affiliation: Department of Chemical Science and Engineering, Kobe University , 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
authors.forename: Kohei
authors.initials: K
authors.lastname: Murakami
authors.affiliation: Research Center for Photovoltaics (RCPV), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
authors.forename: Takurou N
authors.initials: TN
authors.lastname: Murakami
authors.affiliation: Research Center for Photovoltaics (RCPV), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
authors.forename: Nagatoshi
authors.initials: N
authors.lastname: Koumura
authors.affiliation: Department of Chemical Science and Engineering, Kobe University , 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
authors.forename: Atsunori
authors.initials: A
authors.lastname: Mori