Synthesen von 1,3-Dithiol-2-on-Derivaten,2-Ethylthio-1,3-dithiolium-tetrafluoroboraten und Thieno[2,3-d]-1,3-dithiol-2-thionen / Synthesis of 1,3-Dithiole-2-one Derivatives, 2-Ethylthio-1,3-dithiolium Tetrafluoroborates, and Thieno[2,3-d]-1,3-dithiole-2-thiones

Wolfgang Dölling 1 , Almut Vogt 1  and Manfred Augustin 1
  • 1 Martin-Luther-Universität Halle-Wittenberg, Sektion Chemie, Weinbergweg 16, 0-4020 Halle, BRD

Substituted 1,3-dithiole-2-ones 2 a - f are obtained by reaction of 1,3-dithiole-2-thiones 1 a - f with mercuric acetate. The thiones 3 react with triethyloxoniumtetrafluoroborate giving 1.3-dithiolium salts 4 a - h . The cyclocondensation of compounds 3 to thieno[2,3-d]-1,3-dithiole- 2-thiones 6 a - c is described. The first synthesis of 5-methylthio-2-thioxo-1,3-dithiole- 4-carboxylic acid is reported.

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Zeitschrift für Naturforschung B is an international scientific journal which publishes original papers, microreviews, and letters from all areas of inorganic chemistry, solid state chemistry, coordination chemistry, molecular chemistry, and organic chemistry.

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