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Synthesis 1987; 1987(7): 655-657
DOI: 10.1055/s-1987-28039
DOI: 10.1055/s-1987-28039
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Ein einfaches Verfahren zur Herstellung von 6-Aminothieno[2,3-d]-1,3-dithiol-2-thionen
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Publikationsdatum:
20. August 2002 (online)
A Simple Procedure for the Preparation of 6-Aminothieno[2,3-d]-I,3- dithiole-2-thiones O-Ethyl-S-cyanomethyl-dithiocarboxylate 1 reacts with carbon disulfide under phase transfer conditions to the 5-cyano-2-thioxo-1,3-dithiole-4-thiolate 2, giving with α-halocarbonyl compounds R1CH2X 6-amino-thieno[2, 3-d]-1,3-dithiole-2-thiones 3. 2 can be alkylaled to 4. These compounds 3 or 4 were transformed into the 1,3-dithiole-2-ones 5 or 6 respectively by heating with mercuric acetate in chloroform-acetic acid.