International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Since Year 2012 | Open Access | Double Blind Reviewed

ISSN: 2319-7064




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Research Paper | Chemistry | Sudan | Volume 10 Issue 5, May 2021


Isolation and Structural Elucidation of three Substituted Flavones from Croton Zambesicus (Mull) Fruit and Leaves

Mustafa S.Koya | Nada A. Elamin [2] | Zeinab A. Elrabei [2]


Abstract: Three substituted flavones were isolated from fruit and leaves of C. Zambesicus Mull. The dried plant material was separately soxhlet extracted in 70% ethanol and then re-extracted with petroleum ether, diethyl ether and ethyl acetate. The fractions were concentrated and set to a silica gel column chromatography using different solvent systems. In our continuing phytochemical study of the medicinal plants indigenous in Sudan, we have examined phenolic constituents of Croton Zambesicus. This paper will report our first isolation of three Flavone derivatives from fruits and leaves of Croton Zambesicus, namely 5, 7, 3?, 4?-tetramethoxy-flavone, apigenin-8-C-?-D-glucopyranoside (Vitexin) and 5, 7, 4?-trihydroxyflavone glycoside (Isovitexin). The structure of these compounds were elucidated based on the analysis spectrum of UV, IR, MS and NMR including ID and 2D NMR.


Keywords: C. Zambesicus, substituted flavones, tetramethoxy flavones, Vitexin isovitxin


Edition: Volume 10 Issue 5, May 2021,


Pages: 444 - 448


How to Cite this Article?

Mustafa S.Koya, Nada A. Elamin, Zeinab A. Elrabei, "Isolation and Structural Elucidation of three Substituted Flavones from Croton Zambesicus (Mull) Fruit and Leaves", International Journal of Science and Research (IJSR), Volume 10 Issue 5, May 2021, pp. 444-448, https://www.ijsr.net/get_abstract.php?paper_id=SR21428180455

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