A Cobalt-Catalyzed Entry Into the Ergot Alkaloids: Total Syntheses of (±)-Lysergene and (±)-LSD

Abstract
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.

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