title: Palladium-catalyzed C-H homocoupling of bromothiophene derivatives and synthetic application to well-defined oligothiophenes.
abstract: Synthesis of oligothiophenes of well-defined structures that possess 2-8 thiophene units is performed with a new synthetic strategy involving C-H homocoupling of bromothiophenes and cross-coupling with organostannanes. Tolerance of the carbon-bromine bond to the palladium-catalyzed C-H homocoupling results in oligothiophenes bearing C-Br bonds at the terminal thiophene rings, which allow further transformation by the catalysis of a transition-metal complex.
authors.affiliation: Chemical Resources Laboratory, Tokyo Institute of Technology, R1-4 4259 Nagatsuta, Yokohama 226-8503, Japan.
authors.forename: Masabumi
authors.initials: M
authors.lastname: Takahashi
authors.forename: Kentaro
authors.initials: K
authors.lastname: Masui
authors.forename: Hiroki
authors.initials: H
authors.lastname: Sekiguchi
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Kobayashi
authors.forename: Atsunori
authors.initials: A
authors.lastname: Mori
authors.forename: Masahiro
authors.initials: M
authors.lastname: Funahashi
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Tamaoki