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Flavones: A direct synthesis of 6-hydroxy-flavones

  • G. N. Vyas
  • N. M. Shah
Article
  • 26 Downloads

Summary

6-Hydroxy-flavones have been synthesised by the Venkataraman oxidation of 2:5-dihydroxy-, 2:5:2′-trihydroxy-, 2:5:4′-trihydroxy chalkones as well as 6:3′-dihydroxy-flavanone by selenium dioxide. Thus the polyhydroxy-chalkones can be oxidised to the corresponding hydroxy-flavones in one step.

Keywords

Flavone Flavanone Chromones Colourless Needle Trihydroxy 
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.

References

  1. 1.
    Kostanecki and co-workersBer., 1898,31, 696, 705, 1757; 1899,32, 326; 1900,33, 322, 1478, 2509.Google Scholar
  2. 2.
    —— and Tambor.. Ibid., 1899,32, 2263.Google Scholar
  3. 2a.
    Cullinane and Phillpott ..J.C.S., 1929, 1761.Google Scholar
  4. 2b.
    Mahal and Venkataraman ..Ibid., 1936, 569.Google Scholar
  5. 3.
    Venkataraman and co-workersIbid., 1935, 866; 1936, 569.Google Scholar
  6. 4.
    Chakravarti and Dutta..J. I. C. S., 1939,16, 639.Google Scholar
  7. 5.
    Seshadri and NarasimhachariProc. Ind. Acad. Sci, 1949,30 A, 151.Google Scholar
  8. 6.
    Vyas and Shah..J. I. C. S., 1949,26, 273.Google Scholar

Copyright information

© Indian Academy of Sciences 1951

Authors and Affiliations

  • G. N. Vyas
    • 1
  • N. M. Shah
    • 1
  1. 1.Department of Chemistry, M. R. Science InstituteGujarat CollegeAhmedabad

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