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Chemistry of Natural Compounds

, Volume 16, Issue 6, pp 558–561 | Cite as

New coumarins ofHaplophyllum obtusifolium

  • É. Kh. Batirov
  • A. D. Matkarimov
  • V. M. Malikov
  • M. R. Yagudaev
  • E. Seitmuratov
Article
  • 36 Downloads

Abstract

Two coumarins have been isolated from an ethanolic extract of the epigeal part ofHaplophyllum obtusifolium Lebed.: capensin (I) and the new coumarin obtusicin, C5H16O6, (II), mp 81–91°C (CH3OH). The acid hydrolysis of (I) and (II) leads to fraxetin. On the basis of the results of a study of acetylation products and the spectral characteristics (IR, UV, PMR, and mass spectra) it has been established that obtusicin has the structure of 8-hydroxy-7-(4′-hydroxy-3′-methyl-but-2′-enyloxy)-6-methoxycoumarin.

Keywords

Coumarin Potassium Carbonate Methyl Iodide Xanthone Epigeal Part 

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Copyright information

© Plenum Publishing Corporation 1981

Authors and Affiliations

  • É. Kh. Batirov
  • A. D. Matkarimov
  • V. M. Malikov
  • M. R. Yagudaev
  • E. Seitmuratov

There are no affiliations available

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