110865-07-1Relevant articles and documents
SYNTHESE DE TRIHYDROXYPHENACYLIDENETRIPHENYLPHOSPHORANES UNE NOUVELLE VOIE D'ACCES AUX DIHYDROXYFLAVONES (CHRYSINE, ACACETINE...)
Le Floc'H, Yves,Lefeuvre, Martine
, p. 5503 - 5504 (2007/10/02)
An easy and convenient synthesys of two new trihydroxyphenacylidenetriphenylphosphoranes from phloroglucinol and pyrogallol is described.Some dihydroxyflavones are prepared by acylation of these ylids, intramolecular olefination and saponification of the two remaining ester groups.