
TY  - JOUR
A1  - Elix, JA 
A1  - Elix, JA 
A1  - Gaul, KL 
A1  - Gaul, KL 
A1  - Hockless, DCR 
A1  - Hockless, DCR 
A1  - Wardlaw, JH 
A1  - Wardlaw, JH 
T1  - Structure Determination of Butlerin A, B and C&#8212;Three New Lichen p-Terphenyls
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1995
VL  - 48
IS  - 5
SP  - 1049
EP  - 1053
KW  - 
UR  - https://doi.org/10.1071/CH9951049 
N2  - The structures of butlerin A (1) (3&#8242;,4,4&#8243;,6&#8242;-tetramethoxy[1,1&#8242;:4&#8242;,1&#8243;-terphenyl]-2&#8242;-yl acetate), butlerin B (2) (3&#8242;,4,4&#8243;,5&#8242;-tetramethoxy[1,1&#8242;:4&#8242;,1&#8243;-terphenyl]-2&#8242;-yl acetate) and butlerin C (5) (3&#8242;,4,4&#8243;-trimethoxy[1,1&#8242;:4&#8242;,1&#8243;-terphenyl]-2&#8242;,6&#8242;-diyl acetate), three para-terphenyls from the lichen Relicina connivens, have been established by X-ray analysis of crystals of butlerins A and B and spectroscopic comparisons. Crystals of a mixture of butlerins A and B are orthorhombic, Pbcn, a 22.388(3), b 13.525(2), c 7.082(3) &#506;; Z 4. Refinement of 1049 data with I > 3&#963;(I) gave conventional R factors of 0.043 and 0.042. 
ER  -

