Download PDF
Synthesis 1987; 1987(9): 837-838
DOI: 10.1055/s-1987-28095
communication
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.

Improved Synthesis of Bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF): π-Donor for Synthetic Metals

K. Sukumar Varma* , Adrian Bury, Nigel J. Harris, Allan E. Underhill
  • *Department of Chemistry and Institute of Molecular and Biomolecular Electronics, University College of North Wales, Bangor, Gwynedd LL57 2UW, U. K.
Further Information

Publication History

Publication Date:
12 September 2002 (online)

  PDF Download  Permissions and Reprints All articles of this category

2,5,7,9-Tetrathiabicyclo[4.3.0)]non-1(6)-en-8-thione (3) is prepared in increased yield by isolating the intermediate 4,5-dimercapto-1,3-dithiole-2-thione disodium salt (2) which undergoes efficient ring-closure with 1,2-dibromoethane. Quantitative oxidation of 3 with mercuric acetate to 2,5,7,9-tetrathiabicyclo [4.3.0]non-1(6)-en-8-one (4) followed by coupling with triethyl phosphite yields bis(ethylenedithio) tetrathiafulvalene (BEDT-TTF) in high overall yield.

      >