Advertisement

Chemistry of pongamol. Part I

  • S. Rangaswami
  • T. R. Seshadri
Article
  • 33 Downloads

Summary

Pongamol, which is the second important crystalline component of the pongamia oil, has the molecular formula C18H14O4 and contains a methoxyl group. It has also a phenolic or enolic hydroxyl group. Demethylation with aluminium chloride yields nor-pongamol whereas treatment with hydriodic acid gives rise to a product which is probably isomeric but does not possess phenolic properties. Treatment with bromine produces a tetrabromo derivative which on boiling with acetone yields a tribromo compound. Oxidation with potassium permanganate or decomposition with alkali yields benzoic acid. From these properties and from colour reactions it is suggested that pongamol is a flavone derivative containing a hydroxyl, a methoxyl and an ethylene double bond.

Keywords

Ferric Chloride Potassium Permanganate Hydriodic Acid Anhydrous Aluminium Chloride Alcoholic Ferric Chloride 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Rangaswami and SeshadriCurr. Sci., 1940, 179.Google Scholar
  2. 2.
    Indian J. Pharm., 1941,3, 3.Google Scholar
  3. 3.
    WilsonJ. Am. C. S., 1939, 2303.Google Scholar

Copyright information

© Indian Academy of Sciences 1942

Authors and Affiliations

  • S. Rangaswami
    • 1
  • T. R. Seshadri
    • 1
  1. 1.Departments of Chemistry, and Chemical TechnologyAndhra UniversityWaltair

Personalised recommendations