Phytochemical Study of the Flavonoids of Acacia nilotica .L. , Rumex vesicarius L. and Adansonia digitata L

Abstract

Three medicinal plants namely; Acacia nilotica (bark), Rumex vesicariuos (roots) and Adansonia digitata were subjected to phytochemical studies to investigate their flavonoids . The plant material in each case was extracted by ethanol to give a crude product.The three crude products were subjected to column chromatography and isolated by thin layer chromatography. The isolated compounds were subjected to IR, UV, 1HNMR and mass spectrometry. The spectral data indicated that the flavonoid of Acacia nilotica (compound I) is a dihydroflavonol. Antibacterial studies indicated that compound I is active against some (G+ , G- ) bacteria. O O OH OH HO CH2 O O compound I The spectral data indicated that the flavonoid of Rumex vesic arius (compound II)is a bidihydrochalcone. Antibacterial studies indicated that compound II is active against some (G+ , G- ) bacteria. O O HO HO CH3 CH3 OCH3 OCH3 O Compound II The spectral data indicated that the flavonoid of Adansonia digitata (compound III) is a bidihydrochalcone. Antibacterial studies indicated that compound III is active against some (G+, G-) bacteria. O O CH3 CH3 O OH CH OH 3 CH3 Compound III