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Synthesis of some pyronochromanones

  • J. R. Merchant
  • S. M. Thakkar
Article
  • 9 Downloads

Abstract

The O-cyanoethylation of 7-hydroxy-3, 4-cyclopenteno- and 7-hydroxy-3, 4-cyclohexeno-coumarins followed by hydrolysis and cyclisation of the resulting acids, affords α-pyronochromanones whose structures have been established by spectral data and the formation of 2, 4-DNP derivatives.

Keywords

Coumarin Aqueous Sodium Hydroxide Colourless Needle Sodium Bicarbonate Solution Solvent Layer 
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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References

  1. 1.
    Merchant, J. R. and Patell, J. R.,Curr. Sci. 37 404 (1968).Google Scholar
  2. 2.
    Merchant, J. R. and Patell, J. R.,J. Chem. Soc. (C) 1544 (1969).Google Scholar
  3. 3.
    Merchant, J. R. and Patell, J. R.,Tetrahedron Lett. 8 555 (1970).CrossRefGoogle Scholar
  4. 4.
    Merchant, J. R., Patell, J. R. and (Smt.) Thakkar, S. M.,Curr. Sci. 40 353 (1971).Google Scholar
  5. 5.
    Merchant, J. R., Patell, J. R. and (Smt.) Barve, N. V.,J. Indian Chem. Soc. 48 241 (1971),Google Scholar
  6. 6.
    Sethna, S. and Phadke, R., Pechmann reaction in R. Adams Ed.,Organic Reactions Vol. VII, John Wiley and Sons, Inc., New York, N.Y., p. 14 (1953).Google Scholar
  7. 7.
    Von Pechmann, H. and Cohen, J. B.,Ber. 17 2189 (1884).Google Scholar
  8. 8.
    Ahmed, S. Z. and Desai, R. D.,Proc. Indian Acad. Sci. 5 276 (1937).Google Scholar
  9. 9.
    Ahmed, S. Z. and Desai, R. D.,J. Bombay Uni. (6) (2) 89 (1937–38).Google Scholar

Copyright information

© Indian Academy of Sciences 1975

Authors and Affiliations

  • J. R. Merchant
    • 1
  • S. M. Thakkar
    • 1
  1. 1.Department of ChemistryInstitute of ScienceBombay

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