Showing papers on "Biflavonoid published in 1987"
TL;DR: Lophirone A, a new biflavonoid have been isolated from the stem bark of Lophira lanceolata as mentioned in this paper, which involved an aryl shift from one flavonoid unit to the second.
49 citations
TL;DR: The structure of a spiro biflavonoid, daphnodorin C (3), previously isolated from the root and bark of Daphne odora THUNB was established on the basis of chemical and spectral studies, and confirmed by an X-ray diffraction analysis.
Abstract: The structure of a novel spiro biflavonoid, daphnodorin C (3), previously isolated from the root and bark of Daphne odora THUNB., was established on the basis of chemical and spectral studies, and confirmed by an X-ray diffraction analysis.
20 citations
18 citations
TL;DR: A new biflavonoid has been isolated from Podocarpus taxifolia and identified by chemical and spectral data as I-4′,I-5,II-5-trihydroxy-II- 4′, I-7, II-7-trimethoxy-I-2,3-dihydro-[I-3′,2-8]biflavone along with other bif lavonoids.
16 citations
16 citations
6 citations
TL;DR: In this article, a novel biflavonoid from commercial willow bark (Salix spp) is characterized by spectrometric methods, the bonding positions being established by nuclear Overhauser effect difference spectroscopy of the methyl ether acetate of the bi-(+)-taxifolin analogue, which represents a product of oxidation and which undergoes methylene insertion reactions with diazomethane.
Abstract: [2′,2′]-(+)-Catechin-(+)-taxifolin, a novel biflavonoid from commercial willow bark (Salix spp), is characterized by spectrometric methods, the bonding positions being established by nuclear Overhauser effect difference spectroscopy of the methyl ether acetate of the bi-(+)-taxifolin analogue, which represents a product of oxidation and which undergoes methylene insertion reactions with diazomethane
6 citations