Title

Flavones and phenylpropenoids in the surface exudate of Psiadia punctulata

Document Type

Article

Publication details

Juma, BF, Yenesew, A, Midiwo, JO & Waterman, PG 2001, 'Flavones and phenylpropenoids in the surface exudate of Psiadia punctulata', Phytochemistry, vol. 57, no. 4, pp. 571-574.

Published version available from:

http://dx.doi.org/10.1016/S0031-9422(01)00147-9

Peer Reviewed

Peer-Reviewed

Abstract

Three flavones, 5,7-dihydroxy-2′,3′,4′,5′-tetramethoxyflavone, 5,4′-dihydroxy-7,2′,3′,5′-tetramethoxyflavone, and 5,7,4′-trihydroxy-2′,3′,5′ -trimethoxyflavone were isolated from the leaf exudate of Psiadia punctulata, together with the previously reported 5-hydroxy-7,2′,3′,4′,5′-pentamethoxyflavone and 5,7,3′-trihydroxy-2′,4′,5′-trimethoxyflavone. The two phenylpropenoids, Z-docosyl-p-coumarate and E-docosyl-p-coumarate were also isolated. The structures were determined on the basis of spectroscopic evidence.