
%0 Journal Article
%A Djura, P 
%A Sargent, MV 
%T Depsidone synthesis. IX. Nornotatic acid and notatic acid
%J Australian Journal of Chemistry
%D 1977/06/01
%V 30
%N 6
%P 1293-1304
%K 
%R https://doi.org/10.1071/CH9771293
%U https://www.publish.csiro.au/paper/CH9771293 
%X New syntheses of the lichen depsidone 8-hydroxy-3-methoxy-1,4,6- trimethyl-11-oxo-11H-dibenzo-[b,e][1,4]dioxepin-7-carboxylic acid (notatic acid) (1) are described. The synthesis of 3,8-dihydroxy- 1,4,6-trimethyl-11-oxo-11H-dibenzo[b,e][1,4]dioxepin-7carboxylc acid (2) is described. It was identical with the depsidone nornotatic acid isolated from the lichen Parmelia weberi Hale. 
