Biflavones of Dioon,
Date
1973Author
Dr. Dossaji, Saifuddin Fidahussein
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
Seven biflavones, amentoflavone, bilobetin, sequoiaflavone, ginkgetin, sciadopitysin, 7,4 Œ,7 Œ,4triple prime-tetra-O-methylamentoflavone, and diooflavone (amentoflavone hexamethyl ether), were identified from extracts of the cycad genus Dioon. The biflavones were identified by direct comparison with authentic samples using m.m.p., co-chromatography in 3 solvents, and NMR studies of the acetates. This is the first time amentoflavone hexamethyl ether has been identified as a natural product. After surveying numerous species of the Cycadales, no evidence could be obtained for the occurrence of biflavone glycosides or of biflavones based upon any other nucleus than apigenin.
URI
http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/36926http://www.sciencedirect.com/science/article/pii/0031942273800202
Citation
DR. DOSSAJI, SAIFUDDINFIDAHUSSEIN. 1973. Biflavones of Dioon,. Phytochem.12, 371.. : Journal of Natural ProductsPublisher
University of Nairobi College of biological and physical science