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Chemistry for Sustainable Development

2011 year, number 4

Synthesis of Vinyl Chloride Derivatives
on the Basis of Betulin

O. B. KAZAKOVA, N. I. MEDVEDEVA, E. YU. YAMANSAROV, L. V. SPIRIKHIN, E. F. KHUSNUTDINOVA, O. S. KUKOVINETS and G. A. TOLSTIKOV
Institute of Organic Chemistry, Ufa Scientific Centre of the Russian Academy of Sciences,
Pr. Oktyabrya 71, Ufa 450054 (Russia)
obf@anrb.ru
Keywords: triterpenoids, betulin, methyl ketones, chlorovinyl derivatives, synthesis, ozonolysis
Pages: 335–338

Abstract

Triterpenoids with a chlorovinyl fragment were synthesized through the interaction of diacetoxy-29-nor-20-oxobetulin and 2-cyano-3,4-seco-23-nor-4,28-dioxo-19β,28-epoxyoleane with phosphorus pentoxide via boiling in chloroform.