Chemistry of Natural Compounds

, Volume 18, Issue 3, pp 310–314

Dimeric proanthocyanidins ofHibiscus cannabinus

Authors

  • Fam Van Tkhin'
  • B. Makhsudova
  • O. S. Otroshchenko
Article

DOI: 10.1007/BF00580458

Cite this article as:
Van Tkhin', F., Makhsudova, B. & Otroshchenko, O.S. Chem Nat Compd (1982) 18: 310. doi:10.1007/BF00580458

Abstract

Two dimeric proanthocyanidins have been isolated from the bark and roots of kenaf of variety Uzbekskii 1574. On the basis of chemical transformations and NMR and mass-spectral analyses it has been established that the proanthocyanidins have the structure of a dehydro dimer of 3,3′,4′,5,7-pentahydroxyflavan and that of 8-(3-galloyloxy-3′,4′,5,7-tetrahydroxyflavan-4-yl)-3,3′,4′,5,7-pentahydroxyflavan, respectively, with a C4-C8 (or C6) bond between the flavan moieties.

Copyright information

© Plenum Publishing Corporation 1983