Insecticidal properties and chemical constitution

Part II. Coumarins
  • V. V. Sreerama Murti
  • T. R. Seshadri


The simpler coumarins are considerably less toxic as compared with the simpler flavones. This could be attributed to the lack of a side-phenyl nucleus in the former. 3-Phenyl and 4-phenyl umbelliferones and their methyl ethers are found to be highly toxic and compare favourably with 7-hydroxy and 7-methoxy-flavones. A large number of related coumarin derivatives have been studied for their toxicity towards fish.


Coumarin Flavone Methyl Ether Umbelliferone Methyl Coumarin 
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  1. 1.
    Murti, Rao and SeshadriProc. Ind. Acad. Sci., A, 1947,25, 22.Google Scholar
  2. 2.
    Späth and KuffnerMonatsh, 1936,69, 75.CrossRefGoogle Scholar
  3. 3.
    MahalProc. Ind. Acad. Sci., B, 1937,5, 186.Google Scholar
  4. 4.
    Läuger, Martin and MüllerHelv. Chim. Acta., 1944,27, 925.Google Scholar

Copyright information

© Indian Academy of Sciences 1947

Authors and Affiliations

  • V. V. Sreerama Murti
    • 1
  • T. R. Seshadri
    • 1
  1. 1.Department of ChemistryAndhra UniversityWaltair

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