
TY  - JOUR
A1  - Cambie, Richard C. 
A1  - Liu, Carrie C. 
A1  - Rickard, Clifford E. F. 
A1  - Rutledge, Peter S. 
T1  - Skeletal Rearrangements of Ring C Aromatic Diterpenoids
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1998
VL  - 51
IS  - 7
SP  - 605
EP  - 610
KW  - 
UR  - https://doi.org/10.1071/C97198 
N2  - The structure of a naphthalene derivative obtained by rearrangement of 13-methoxytotara-5,8,11,13-tetraen-7&#945;-ol (2) has been revised to 5-(5&#8242;-isopropyl-6&#8242;-methoxy-2&#8242;-methyl-1&#8242;-naphthyl)-2-methylpent-2-ene (7). A minor oxidation product of 13-methoxytotara-8,11,13-triene (4) has been identified as 4-methoxy-3,3-dimethyl-7-(1&#8242;,3&#8242;,3&#8242;-trimethyl-2&#8242;-oxocyclohexanyl)isobenzofuran-1(3H)-one (16) and its structure confirmed by X-ray crystallography. Methyl 12-methoxypodocarpa-8,11,13-trien-19-oate (12) has been converted into an intermediate used in the synthesis of the linear diterpenoid umbrosone &#91;3-(1&#8242;-hydroxy-1&#8242;-methylethyl)-5,5,9-trimethyl-5,6,7,8-tetrahydroanthracene-1,2-dione&#93; (15). 
ER  -

