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Synthesis 1997; 1997(1): 26-28
DOI: 10.1055/s-1997-1494
short paper
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Synthesis of Selenated Unsymmetrical Analogs of BEDT-TTF, BEDO-TTF and DMET

Laurent Binet1 , Jean Marc Fabre1 , Jan Becher2
  • 1Laboratoire de Chimie Organique Structurale, Université Montpellier II, place E. Bataillon, 34095 Montpellier Cedex 5, France
  • 2Department of Chemistry, University of Odense, Campusvej 55 DK-5230 Odense M, Denmark
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Publication Date:
31 December 2000 (online)

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An improved synthesis of EDSEDT-TTF 4 and EDSEDO-TTF 5 from appropriate cross-coupling reactions involving 4,5-bis(2-cyanoethylthio)-1,3-dithiol-2-one (9) and 4,5-bis(2-cyanoethylseleno)-1,3-dithiol-2-one (11) as key intermediates is described. Moreover, a Wittig-type preparation of new selenated derivatives 6 and 7 of DMET molecule from the useful new precursor [4,5-bis(2-cyaoethylseleno)-1,3-dithiol-2-yl]triphenylphosphonium tetrafluoroborate (17) is presented.

selenated analogs of BEDT-TTF and DMET - cross coupling reaction - pseudo Wittig condensation - cyanoethyl groups