Constitution of Populnin

  • P. Ramachandra Rao
  • T. R. Seshadri


Populnin is a monoglucoside of populnetin which is shown to be identical with kæmpferol. By the methylation and the subsequent hydrolysis of the glucoside a trimethyl ether of kæmpferol is obtained. Its colour reactions and properties indicate definitely that the free hydroxyl group is not in the 3− or 5-position. It has been compared with the isomeric 4′-hydroxy compound and found to be different. Thus the degradation product should have the hydroxyl in the 7-position. This is confirmed by ethylation and comparison of the ethyl ether and of its alkali degradation product (ketone) with synthetic samples.


Flavone Rectangular Plate Anisic Acid Mixed Melting Point Anhydrous Potassium Carbonate 
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Copyright information

© Indian Academy of Sciences 1946

Authors and Affiliations

  • P. Ramachandra Rao
    • 1
  • T. R. Seshadri
    • 1
  1. 1.Department of ChemistryAndhra UniversityWaltair

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