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Chemistry of Heterocyclic Compounds

, Volume 43, Issue 8, pp 1060–1064 | Cite as

Synthesis of novel polycyclic ring systems containing two pyrano[2,3-c]pyrazol-4-(1H)one moieties

  • G. A. Eller
  • V. Wimmer
  • W. Holzer
Article

Abstract

Novel penta-or heptacyclic ring systems containing two pyrano[2,3-c]pyrazol-4(1H)-one units are prepared in one or two steps from the reaction of 3-methyl-1-phenyl-2-pyrazolin-5-one and bis(o-chlorocarbonyl chlorides) derived from benzene-or 1,10-phenanthroline.

Keywords

pyrazolones fused ring systems acylations 

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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • G. A. Eller
    • 1
  • V. Wimmer
    • 1
  • W. Holzer
    • 1
  1. 1.Department of Drug and Natural Product SynthesisUniversity of ViennaViennaAustria

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