
%0 Journal Article
%A Sala, T 
%A Sargent, MV 
%A Skelton, BW 
%A White, AH 
%T Depsidone synthesis. XXIII. The oxidation of 2,2'-dihydroxy-4,4'-dimethoxy-6,6'-dimethylbenzophenone
%J Australian Journal of Chemistry
%D 1982/05/01
%V 35
%N 5
%P 1065-1070
%K 
%R https://doi.org/10.1071/CH9821065
%U https://www.publish.csiro.au/paper/CH9821065 
%X Oxidation of 2,2'-dihydroxy-4,4'-dimethoxy-6,6'-dimethylbenzophenone (1) with alkaline ferricyanide gave the expected 4',6-dimethoxy-4,6'-dimethylspiro[benzofuran-2(3H),1'-cyclohexa-3',5'-diene]-2',3(2H)-dione (2) as well as 2'-hydroxy-6-methoxy-4,5'-dimethylspiro[benzofuran-2(3H),1'-cyclopent-4'-ene]-3(2H),3'-dione (3). The structure of compound (3) was deduced from its spectroscopic properties and was confirmed by X-ray diffraction. 
