title: Zirconium-mediated coupling reaction for synthesis of substituted thiophene-fused acenes.
abstract: A novel zirconium-mediated synthesis of substituted thiophene-fused acenes is described. A variety of substituents, such as alkyl, aryl, silyl, iodo, and alkynyl groups, could be introduced to the acene skeleton by this method. Moreover, the double coupling with tetraiodothiophene gave the corresponding dianthrathiophene.
authors.affiliation: Catalysis Research Center and Graduate School of Life Science, Hokkaido University, and SORST, Japan Science and Technology Agency (JST), Kita-ku, Sapporo 001-0021, Japan.
authors.forename: Yang
authors.initials: Y
authors.lastname: Ni
authors.forename: Kiyohiko
authors.initials: K
authors.lastname: Nakajima
authors.forename: Ken-ichiro
authors.initials: K
authors.lastname: Kanno
authors.forename: Tamotsu
authors.initials: T
authors.lastname: Takahashi