Lipophilic exudates of one species each of Chamaebatiaria and Elsholtzia, two species of Silphium and four Dodonaea species were analyzed for flavonoid aglycones. In addition to a number of well-known and widely distributed flavonoids, several very rare and one novel natural flavonol were isolated and identified. 1H and 13C NMR data of four flavanones and two flavones are reported.
Valant-VetscheraKM, WollenweberE. (2006) Flavones and Flavonols. Chapter 12 in: Flavonoids. Chemistry, Biochemistry and Applications (AndersenO.M. & MarkhamK.R. Eds.), CRC-Press, 617–748.
2.
WollenweberE, Valant-VetscheraKM. (1996) New results with exudate flavonoids in Compositae. In: Compositae: Systematics. Proceedings of the International Compositae Conference. Kew, 1994, HindDJN, BeentjeJ (Eds). Vol. 1, HindDJN (Editor-in-Chief). Royal Botanic Gardens, Kew, 169–185.
3.
Amaro-LuisJM, Delgado-MèndezP. (1993) Flavonoids from the leaves of Chromolaena subscandens.Journal of Natural Products, 56, 610–612.
4.
WollenweberE, MannK, DörrM, FritzH, RoitmanJN, YatskievychG. (1995) Exudate flavonoids in three Ambrosia species. Natural Product Letters, 7, 109–116.
5.
Van HeerdenFR, ViljoenAM, van WykBE. (2000) The major flavonoid of Dodonaea angustifolia.Fitoterapia, 71, 602–604.
6.
SachdevK, KulshreshtaDK. (1986) Viscosol, a C-3'prenylated flavonoid from Dodonaea viscosa.Phytochemistry, 25, 1967–1969.
7.
McCormickS, RobsonK, BohmB. (1986) Flavonoids of Wyethia angustifolia and W.helenioides. Phytochemistry, 25, 1723–1726.
HorieT, KawamuraY, YamamotoH, KitouYamashita K. (1995) Synthesis of 5,8-dihydroxy-6,7-dimethoxyflavones and revised structures for some natural flavones. Phytochemistry, 39, 1201–1210.
10.
YuldashevMP, BatirovEK, NigamtillaevA, MalkovVM. (1994) Structure of two new flavonoids from Scutellaria ramosissima.Khimiya Prirodnykh Soedinenii, 355–359.
11.
Abdel-MogibM, BasaifSA, AsiriAM, SobahiTR, BatterjeeSM. (2001) New clerodane diterpenoid and flavonol-3-methyl ethers from Dodonaea viscosa.Pharmazie, 56, 830–831.
WollenweberE, StüberA, KrautL. (1997) Flavonoid aglycones and flavonol glycosides in lipophilic leaf exudate of Nothofagus antarctica.Phytochemistry, 44, 1399–1400.
17.
WollenweberE, DörrM, FritzH, Valant-VetscheraKM. (1997) Exudate flavonoids in several Asteroideae and Cichorioideae (Asteraceae). Zeitschrift für Naturforschung, 52c, 137–143.