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Paper | Regular issue | Vol 27, No. 6, 1988, pp.1391-1394
Published online, 1st January, 1970
DOI: 10.3987/COM-87-4474
3,3’;2’,2’’;3’’.3’’’ - Tetrathiophene: Synthesis and Crystal Structure

Nimal Jayasuriya, Jacques Kagan,* De-Bin Huang, and Boon K. Teo*

*Department of Chemistry, University of Illinois at Chicago, 845 West Taylor St., Chicago, IL 60607-7061, U.S.A.


The title structure was obtained from X-ray data on the product formed when the monolithio derivative of 3,3’-bithienyl was treated with CuCl2. The thiophene rings were not coplanar: the angle between adjacent rings was about 20° in the 3,3’-bithienyl moieties, and 110° in the 2,2’-bithienyl moiety. The product was best forme (in 84% yield) by coupling 2-bromo-3,3’-bithienyI with its Grignard derivative by the Kumada procedure.