Abstract
Phytochemical investigation of the ethanolic extract of the mature fruit of Tetrapheura tetraptera led to the isolation of three flavonoid constituents namely 2', 4, 4'-trihydroxychalcone, 2', 3, 4, 4'- tetrahydroxychalcone and 4', 5, 7-trihydroxyflavanone. The structures were established from 1D and 2D NMR experiments. This is the first isolation of flavonoid constituents in the genus Tetrapleura.
Keywords: tetrapheura tetraptera, flavonoid, chalcone, flavanone, 1D and 2D NMR.
Journal of Science and Technology Vol. 26(1) 2006: 47-53