Phytochemistry p. 295 - 296 (1989)
Update date:2022-08-03
Topics:
Wollenweber, Eckhard
Mann, Karin
Iinuma, Munekazu
Tanaka, Toshiyuki
Mizuno, Mizuo
A new flavone, 5,2',5'-trihydroxyflavone and 2',β-dihydroxychalcone (β-diketone) were isolated from the farinose exudate of Primula pulverulenta.These structures were established on the basis of spectral data and confirmed by total synthesis.A transformation experiment suggest that the β-diketone is converted into flavone during isolation procedures. - Keywords: Primula pulverulenta; Primulaceae; farinose exudate; 5,2',5'-trihydroxyflavone; 2',β-dihydroxychalcone; conversion of β-diketone into flavone.
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