115713-41-2Relevant academic research and scientific papers
8,2'-DIHYDROXYFLAVONE FROM PRIMULA PULVERULENTA
Wollenweber, Eckhard,Mann, Karin,Iinuma, Munekazu,Tanaka, Toshiyuki,Mizuno, Mizuo
, p. 1483 - 1486 (2007/10/02)
A novel flavone, isolated from the farinose exudate of Primula pulverulenta, was identified as 8,2'-dihydroxyflavone.This is the first naturally occurring flavone, in which ring A is oxygenated only at C-8.The structure was deduced from spectral comparisons with the structurally related flavones: 5,2'-, 3,2'- and 2',3'-dihydroxyflavone and confirmed by total synthesis.The spectral properties of other flavones oxygenation with a simple pattern are discussed in relation to 8,2'-dihydroxyflavone.Key Word Index - Primula pulverulenta; Primulaceae; farinose excretion; 8,2'-dihydroxyflavone; 8,2'-dimethoxyflavone.
