
TY  - JOUR
A1  - Macleod, JK 
A1  - Worth, BR 
A1  - Wells, RJ 
T1  - Synthesis of benzofuranoid systems. IV. Total synthesis of cyperaquinone and conicaquinone
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1978
VL  - 31
IS  - 7
SP  - 1533
EP  - 1544
KW  - 
UR  - https://doi.org/10.1071/CH9781533 
N2  - The total synthesis of the novel naturally occurring benzodifuroquinones, cyperaquinone (1) and conicaquinone (2), starting from phloroglucinol is described. A comparison of synthetic and natural compounds confirmed the original structural assignments. The key intermediate in the synthesis was the 3-methylbenzofuran (21) which was prepared in high yield by an internal site-specific base-catalysed Ar1-5 cyclization of the acetonyloxy derivative (19). The method has also been applied to the syntheses of linear furocoumarins and dibenzofurans. 
ER  -

