Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 7 (July 2013)

organic compounds

Acta Cryst. (2013). C69, 765-769    [ doi:10.1107/S0108270113013991 ]

(E)-Ethyl 3-(3,4-di­hydroxy­phen­yl)prop-2-enoate: a natural polymorph extracted from Aristotelia chilensis (Maqui)

C. Paz, Y. Moreno, J. Becerra, M. Silva, V. Burgos, E. Freire and R. Baggio

Abstract: The natural title compound, C11H12O4, extracted from the Chilean native tree Aristotelia chilensis (Maqui), is a polymorph of the synthetic E form reported by Xia, Hu & Rao [Acta Cryst. (2004), E60, o913-o914]. Both rotational conformers are identical from a metrical point of view, and only differ in the orientation of the 3,4-dihydroxyphenyl ring with respect to the rest of the molecule, which leads to completely different crystal structure arrangements and packing efficiencies. The reasons behind both reside in the different hydrogen-bonding inter­actions.

Formula: C11H12O4

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[ doi:10.1107/S0108270113013991/lg3110Isup3.cml ]
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