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Synthesis 1989; 1989(6): 458-461
DOI: 10.1055/s-1989-27289
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Synthesis and Reactions of 1-Acetyl-2-benzylidene-3-oxo-2,3-dihydroindoles

A. Buzas* , J. Y. Merour
  • *Laboratoire de Synthèse Organique B.P. 6759, UFR Sciences, F-45067 Orleans Cedex, France
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Publikationsdatum:
17. September 2002 (online)

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1-Acetyl-3-oxo-2,3-dihydroindoles were reacted with substituted benzaldehydes affording 1-acetyl-2-arylmethylene-3-oxo-2,3-dihydroindoles which were selectively reduced by hydrogen; then a Horner-Emmons reaction gave the precursors of 2-substituted tryptamines. Nitromethane was added to 1-acetyl-2-arylmethylene-3-oxo-2,3-dihydroindoles giving Michael addition products.