
TY  - JOUR
A1  - Karichiappan, Kalanithy 
A1  - Wege, Dieter 
T1  - Naphtho[2,3-<emph type="2">c</emph>]furan-4,9-dione and a Further Exploratory Approach to the Ring System of Ventilone A
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2000
VL  - 53
IS  - 9
SP  - 743
EP  - 747
KW  - Arynes; furans; cycloaddition; oxidative demethylation.
UR  - https://doi.org/10.1071/CH00056 
N2  - 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. 
ER  -

