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Chemistry of Heterocyclic Compounds

, Volume 7, Issue 10, pp 1259–1261 | Cite as

Synthesis and some transformations of thioesters of thienylacrylic acid

  • É. N. Deryagina
  • A. S. Nakhmanovich
  • L. G. Klochkova
Article

Abstract

A number of thioesters of thienylacrylic acid were obtained by the condensation of 2-formylthiophene and 5-bromo-2-formylthiophene with acetylenic thioethers in the presence of boron trifluoride etherate. The reaction of the condensation products with hydrazine hydrate is accompanied by intramolecular cyclization to form the corresponding pyrazolines. The IR spectra of the synthesized compounds are discussed.

Keywords

Hydrate Organic Chemistry Boron Hydrazine Hydrazine Hydrate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

  1. 1.
    H. Vieregge, H. I. T. Bos, and I. F. Arens, Rec. Trav. Chim., 78, 664 (1959).Google Scholar
  2. 2.
    H. I. T. Bos and T. Arens, Rec. Trav. Chim., 82, 845 (1963).Google Scholar
  3. 3.
    J. Jawai, J. Soc. Org. Synthetic Chem. Japan, 23, 304 (1965).Google Scholar

Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1974

Authors and Affiliations

  • É. N. Deryagina
    • 1
  • A. S. Nakhmanovich
    • 1
  • L. G. Klochkova
    • 1
  1. 1.Institute of Organic Chemistry, Siberian BranchAcademy of Sciences of the USSRIrkutsk

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