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close this section of the library Ali, Sadaquat.


View the PDF document Studies on some naturally occurring quinones from Fijian plants
Author:Ali, Sadaquat.
Institution: University of the South Pacific.
Award: M.Sc.
Subject: Quinone , Plant pigments, Botanical chemistry
Date: 1978.
Call No.: pac QD 341 .K2 S4
BRN: 847809
Copyright:This thesis may be copied without the authors written permission.

Abstract: This thesis is divided into two parts, Included in the first part is a discussion on the uses of Cassia plants in folkmedicine, and a review of the anthraquinones and their derivatives known in ia alata (Leguminosae) . The presence of aloe-emodin and rhein in the leaves of C. alata is confirmed, and the isolation and identification of two new constituents, isochrysophanol and the 1¬glucoside of physcion is reported. The second part is primarily concerned with, the chemistry of Hibiscus (Malvaceae) , and reported herein is the isolation and characterization of hibisconea A-C, lapachol and a new ketone, named hibiscone D from the stems of Hibiscus tiliaceous (Fiji) . The isolat and structural elucidation of gossypol, mansonone D and F from the roo of the same plant from Brazil is also reported. The occurrence of terpenoid o-and p-quinones in Malvaceae is discussed, and the synthes of o- and p_~naphthoquinone-peri-alde.hydes, structurally-related to the terpenoids in Malvaceae is described.
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