
%0 Journal Article
%A Elix, JA 
%A Jayanthi, VK 
%A Jones, AJ 
%A Lennard, CJ 
%T A novel biphenyl from the lichen <I>Psoroma contortum</I>
%J Australian Journal of Chemistry
%D 1984/07/01
%V 37
%N 7
%P 1531-1538
%K 
%R https://doi.org/10.1071/CH9841531
%U https://www.publish.csiro.au/paper/CH9841531 
%X The isolation, structural elucidation and synthesis of 1,1'-(2,2'-dihydroxy-4,4',6,6'-tetramethoxy-5,5'- dimethylbiphenyl-3,3'-diyl)bisethanone (contortin) (7), an unusual lichen metabolite probably derived biogenetically by C-C phenolic coupling of two units of C-methylphloroacetophenone, is reported. Spectroscopic data on contortin allowed the structure to be limited to two possibilities, and these were distinguished by total synthesis. 
