Chemistry of Natural Compounds

, Volume 18, Issue 3, pp 282–287 | Cite as

Dimeric flavanols ofJuniperus sabina. I

  • L. T. Pashinina
  • S. A. Abil'kaeva
  • B. I. Sheichenko
Article

Abstract

Procyanidins B2, B3, and B4 have been isolated fromJuniperus sabina for the first time. On the basis of chemical transformations and the PMR spectroscopy of their decaacetates, and absolute configurations of the asymmetric centers of each of the halves of the molecules of the dimer have been determined: 2R, 3R, 4R for the “upper” half and 2R, 3R for the “lower” half of B2, 2R, 3S, 4S for the “upper” half and 2R, 3S, for the “lower” half of B3; and 2R, 3S, 4S for the “upper” half and 2R, 3R for the “lower” half of B4.

Keywords

Catechin Epicatechin Raney Nickel Siberian Larch Asymmetric Center 

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Copyright information

© Plenum Publishing Corporation 1983

Authors and Affiliations

  • L. T. Pashinina
  • S. A. Abil'kaeva
  • B. I. Sheichenko

There are no affiliations available

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