Chemistry of Heterocyclic Compounds

, Volume 14, Issue 7, pp 776–778 | Cite as

Research in the chemistry of pyrazolidine XXIII. Study of the reaction of 3,5-dioxopyrazolidines with β-nitrostyrene

  • K. A. Sapozhnikova
  • A. S. Sopova
  • B. L. Moldaver


Products of Michael condensation containing a 1-phenyl-2-nitroethyl residue in the 4 position of the heteroring are formed in high yields in the reaction of equimolar amounts of 4-methyl-,4-ethyl-, 4-isopropyl-, 4-butyl-, 4-isoamyl-, and 4-phenyl-1, 2-diphenyl-3,5-dioxopyrazolidines and 1,2-diphenyl-3,5-dioxopyrazolidine with β-nitrostyrene under basic catalysis conditions. 1,2-Diphenyl-3,5-dioxopyrazolidine adds two equivalents of β-nitrostyrene when a twofold excess of the latter is present.


Ethyl Organic Chemistry Catalysis Equimolar Amount Basic Catalysis 
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Copyright information

© Plenum Publishing Corporation 1979

Authors and Affiliations

  • K. A. Sapozhnikova
    • 1
  • A. S. Sopova
    • 1
  • B. L. Moldaver
    • 1
  1. 1.Leningrad Pharmaceutical-Chemistry InstituteLeningrad

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