
TY  - JOUR
A1  - Capon, RJ 
A1  - Groves, DR 
A1  - Urban, S 
A1  - Watson, RG 
T1  - Spongiaquinone Revisited: Structural and Stereochemical Studies on Marine Sesquiterpene/Quinones From a Southern Australian Marine Sponge, <I>Spongia</I> sp.
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1993
VL  - 46
IS  - 8
SP  - 1245
EP  - 1253
KW  - 
UR  - https://doi.org/10.1071/CH9931245 
N2  - A chemical investigation of a large purple sponge, Spongia sp., from the Great Australian Bight, resulted in the isolation of a new sesquiterpene/quinone (8), together with the known compounds dehydrocyclospongiaquinone-1 (4) and spongiaquinone (2). The last compound was also isolated as the potassium salt (9), this being the first recorded account of a naturally occurring marine sesquiterpene/quinone salt. The structure for (8) was assigned by detailed spectroscopic analysis. A re-investigation into the stereostructure of spongiaquinone (2) resulted in the first unambiguous assignment of absolute stereochemistry, and uncovered the peculiar chiroptical properties of spongiaquinone (2) and its potassium salt (9). 
ER  -

