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Synlett 1994; 1994(7): 487-489
DOI: 10.1055/s-1994-22898
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A Cobalt-Catalyzed Entry Into the Ergot Alkaloids: Total Syntheses of (±)-Lysergene and (±)-LSD

Carlos Saá* , Dallas D. Crotts, Gishun Hsu, K. Peter C. Vollhardt
  • *Departamento de Química Orgánica, Universidad de Santiago de Compostela, Augas Férreas-Fingoi, 27002 Lugo, Spain
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Publication Date:
18 September 2002 (online)

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Cocyclization of 4-ethynyl-3-indoleacetonitriles with alkynes in the presence of CpCo(CO)2 gives rise to the ergoline derivatives 6-9, two of which were transformed into racemic lysergene and LSD, respectively.