Ni Yang, Nakajima Kiyohiko, Kanno Ken-ichiro, Takahashi Tamotsu
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.
Org Lett. 2009 Aug 20;11(16):3702-5. doi: 10.1021/ol900903w.
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.
