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Synthesis of the betulin dipropionate from the upper birch bark

Описание

Тип публикации: статья из журнала

Год издания: 2012

Идентификатор DOI: 10.1134/S1068162012070126

Ключевые слова: upper birch bark, betulin dipropionate, propionic acid, acylation, activation, explosive autohydrolysis

Аннотация: A one-step synthesis of the betulin dipropionate directly from the birch bark without a separate stage of the betulin preparation is described in this paper. Extracts with different content of the betulin dipropionate were shown to form depending on the conditions of acylation of the upper birch bark with propionic acid. The producПоказать полностьюt with the maximum content of the betulin dipropionate was prepared from the starting fraction of 2-5 mm of the upper birch bark and the fraction of 10-20 mm that was preliminarily activated with superheated water vapor. The upper bark extract was analyzed by gas chromatography. The structure of betulin dipropionate was confirmed by element analysis, H-1 NMR, C-13 NMR, and FTIR spectroscopy.

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Издание

Журнал: RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY

Выпуск журнала: Vol. 38, Is. 7

Номера страниц: 743-748

ISSN журнала: 10681620

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Персоны

  • Kuznetsova S.A. (Siberian Federal University)
  • Skvortsova G.P. (Institute of Chemistry and Chemical Technology,Siberian Branch,Russian Academy of Sciences)
  • Malyar Y.N. (Institute of Chemistry and Chemical Technology,Siberian Branch,Russian Academy of Sciences)
  • Sokolenko V.A. (Institute of Chemistry and Chemical Technology,Siberian Branch,Russian Academy of Sciences)
  • Kuznetsov B.N. (Siberian Federal University)

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