Synthesis of 2,3-dihydrothieno[2,3-b]-1,4-dithiine, 2,3-dihydrothieno[3,2-b]-1,4-oxathiine, 2,3-dihydrothieno[2,3-b]-1,4-oxathiine and their transformation into corresponding end-capped oligomers.
2003 (English)In: Synthesis (Stuttgart), ISSN 0039-7881, E-ISSN 1437-210X, no 14, 2199-2205 p.Article in journal (Refereed) Published
Three new heterocyclic parent compds., 2,3-dihydrothieno[2,3-b][1,4]dithiine, 2,3-dihydrothieno[3,2-b][1,4]oxathiine, and 2,3-dihydrothieno[2,3-b][1,4]oxathiine, have been synthesized by acid-catalyzed transformations starting from 3-methoxythiophene. Two of the new compds. have been transformed to the corresponding end-capped dimeric, trimeric and tetrameric oligothiophenes. These oligomers show very stable cationic and dicationic states as judged by cyclic voltammetry, and their UV-Vis spectra are considerably red-shifted compared to previously synthesized end-capped oligomers. [on SciFinder(R)]
Place, publisher, year, edition, pages
2003. no 14, 2199-2205 p.
end capped oligomer dihydrothienodithiine dihydrothienooxathiine prepn cyclic voltammetry, thienodithiine thienooxathiine end capped oligomer prepn cyclic voltammetry
IdentifiersURN: urn:nbn:se:kth:diva-92001DOI: 10.1055/s-2003-41058OAI: oai:DiVA.org:kth-92001DiVA: diva2:511786
CAPLUS AN 2003:830734(Journal) NR 201408052012-03-232012-03-232012-03-23Bibliographically approved