
TY  - JOUR
A1  - Carroll, AR 
A1  - Taylor, WC 
T1  - Constituents of <I>Eupomatia</I> Species. XI. New Eupodienone Lignans From the Flowers of <I>Eupomatia laurina</I>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1990
VL  - 43
IS  - 11
SP  - 1871
EP  - 1879
KW  - 
UR  - https://doi.org/10.1071/CH9901871 
N2  - On the basis of spectroscopic evidence, eupodienone-8 and -9, isolated from the flowers of Eupomatia laurina R. Br., are assigned the structures (5R, 7R, 8R)-3&#8242;,4-dimethoxy-7,8-dimethyl-2,3-methylenedioxy-6,7,8,9-tetrahydrospiro[5H-benzocycloheptene-5,1&#8242;-cyclohexa-2&#8242;,5&#8242;-dien]-4&#8242;-one (9) and (5S,7R,8R)-3&#8242;,4-dimethoxy-7,8- dimethyl-2,3-methylenedioxy-6,7,8,9-tetrahydrospiro[5H-benzocycloheptene-5,1&#8242;-cyclohex-2&#8242;,5&#8242;-dien]-4&#8242;-one (10) respectively. The products of dienone-phenol rearrangement of these substances are characterized; eupodienone-8 unexpectedly rearranges with aryl group migration. Eupomatenoid-1 and -7, eupodienone-6 and (-)- dihydroguaiaretic acid were also isolated. 
ER  -

