
%0 Journal Article
%A Eade, RA 
%A Kornis, G 
%A Simes, JJH 
%T Extractives of Australian timbers. V. Ceanothic acid
%J Australian Journal of Chemistry
%D 1964/01/01
%V 17
%N 1
%P 141-153
%K 
%R https://doi.org/10.1071/CH9640141
%U https://www.publish.csiro.au/paper/CH9640141 
%X Further evidence supporting structure (II) for ceanothic acid is given. The isopropenyl side chain has been degraded to yield a trisnorketone; reactions involving the isopropenyl and carboxyl groups attached to ring E and the enlargement of ring E are discussed and a close parallel with the corresponding chemistry of betulic acid is presented. The action of alkali effects isomerizations involving the ring A substituents and this, together with spectroscopic evidence, has been shown to support the stereochemistry assigned to the carboxyl and hydroxyl groups attached to ring A as in (II). 
