Chemistry of Natural Compounds p. 432 - 438 (1988)
Update date:2022-08-04
Topics:
Pivovarenko, V. G.
Khilya, V. P.
Kovalev, V. N.
Vasil'ev, S. A.
An effective procedure for condensing acetobromoglucose with 2,4-dihydroxy phenyl benzyl ketones has been developed.The 2-hydroxy-4-(β-D-tetra-O-acetylglucopyranosyloxy)phenyl benzyl ketones synthesized with yields of 47-69percent have been converted under the action of ethyl orthoformate in pyridine solution into 7-hydroxyisoflavone O-glukosides and these have also been obtained by the glycosylation of 7-hydroxyisoflavone.The advantages and disadvantages of the alternative pathways of the synthesis of 7-hydroxyisoflavone O-glykosides are discussed.
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