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Chemical investigation of Indian lichens

Part XXI. Occurrence of fallacinal inTeloschistes flavicans
  • T. R. Rajagopalan
  • T. R. Seshadri
Article
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Summary

A sample ofTeloschistes flavicans collected in summer 1955 was found to contain physcion and fallacinal in the proportion of 4∶1 and did not contain any appreciable amount of teloschistin. A pure sample of teloschistin has been obtained by the partial methylation of citreorosein using methyl sulphate and potassium carbonate and is found to melt at 243–44°. On oxidation with manganese dioxide it has yielded fallacinal.

Keywords

Emodin Potassium Carbonate Manganese Dioxide Concentrate Sulphuric Acid Anhydrous Potassium Carbonate 
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.
    Seshadri and SubramanianProc. Ind. Acad. Sci., 1949,30A, 67.Google Scholar
  2. 2.
    Neelakantanet al. Ibid.,, 1951,33A, 142.Google Scholar
  3. 3.
    Ibid.,, 1956,44A, 42.Google Scholar
  4. 4.
    MurakamiPharm. Bull., Japan, 1956,4, 298.Google Scholar
  5. 5.
    Rajagopalan and SeshadriProc. Ind. Acad. Sci., 1956,44A, 418.Google Scholar
  6. 6.
    Anslowet al. Biochem. J., 1940,34, 159.Google Scholar

Copyright information

© Indian Academy of Sciences 1959

Authors and Affiliations

  • T. R. Rajagopalan
    • 1
  • T. R. Seshadri
    • 1
  1. 1.Department of ChemistryDelhi UniversityDelhi

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