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Chemistry of Natural Compounds

, Volume 21, Issue 5, pp 613–616 | Cite as

Glycosylation of 20(S),24(R)-epoxydammarane-3α,12β,25-triol in the presence of insoluble silver compounds

  • N. S. Samoshina
  • V. A. Denisenko
  • N. I. Uvarova
Article

Abstract

The glycosylation of 20(S),24(R)-epoxydammarane-3α,12β,25-triol (betulafolienetriol oxide; BFTO) in the presence of silver oxide and a silver zeolite has been studied. It has been established that in contrast to the glycosylation of BFTO in nitromethane in the presence of mercuric bromide (orthoester method) and the Helferich method, glycosylation in the presence of insoluble silver catalysts takes place nonregioselectively and leads to the formation of a mixture of glucoside acetates.

Keywords

Glucoside Nitromethane Silver Oxide CH3NO2 Triol 

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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • N. S. Samoshina
  • V. A. Denisenko
  • N. I. Uvarova

There are no affiliations available

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