
%0 Journal Article
%A Karichiappan, Kalanithy 
%A Wege, Dieter 
%T Naphtho[2,3-<emph type="2">c</emph>]furan-4,9-dione and a Further Exploratory Approach to the Ring System of Ventilone A
%J Australian Journal of Chemistry
%D 2000/12/22
%V 53
%N 9
%P 743-747
%K Arynes; furans; cycloaddition; oxidative demethylation.
%R https://doi.org/10.1071/CH00056
%U https://www.publish.csiro.au/paper/CH00056 
%X 1,4-Dimethoxy-2,3-didehydronaphthalene (10), generated by the dehydrobromination of 2-bromo-1,4-dimethoxynaphthalene (9), was trapped with furan and 2-methylfuran, and the resulting adducts were converted into naphtho&#91;2,3-c&#93;furan-4,9-dione (1) and 1-methylnaphtho&#91;2,3-c&#93;furan-4,9-dione (19) respectively. An attempt to extend this procedure to the synthesis of ventilone A (2) failed when the adduct (31), derived from 6,7-methylenedioxy-1,4,5,8-tetramethoxy-2,3-didehydronaphthalene (30) and 2-methylfuran, could not be oxidizedselectively. 
