
TY  - JOUR
A1  - Cameron, Donald W. 
A1  - Caliskan, Ece 
A1  - Griffiths, Peter G. 
T1  - Synthesis of Homophthalates from Allenic Diesters: Conversion into Viocristin and Analogues, and Application to 6-Methylpretetramid.
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2000
VL  - 52
IS  - 11
SP  - 1013
EP  - 1020
KW  - 
UR  - https://doi.org/10.1071/CH99065 
N2  - Oxy-substituted homophthalic anhydrides have been synthesized by cycloaddition of di- and tri-oxy butadienes to the allenic diester (1). By base-catalysed cycloaddition to appropriate benzoquinones they have afforded new syntheses of viocristin (19), isoviocristin (20) and analogous 1,4-anthraquinones. Related chemistry has led to the naphthalene (34) and the anhydride (35), intermediates in published syntheses of semivioxanthin and 6- methylpretetramid respectively. 
ER  -

