(E)-Ethyl 3-(3,4-dihydroxyphenyl)prop-2-enoate: a natural polymorph extracted fromAristotelia chilensis(Maqui)
2013 ◽
Vol 69
(7)
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pp. 765-769
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The natural title compound, C11H12O4, extracted from the Chilean native treeAristotelia chilensis(Maqui), is a polymorph of the syntheticEform 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.
2006 ◽
Vol 62
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pp. o2765-o2767
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2017 ◽
Vol 73
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pp. 1189-1191
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2015 ◽
Vol 71
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pp. o959-o960
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2009 ◽
Vol 65
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pp. o1225-o1225
2006 ◽
Vol 62
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pp. o1243-o1244
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2007 ◽
Vol 63
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pp. o1162-o1163
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2007 ◽
Vol 63
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pp. o1160-o1161
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2015 ◽
Vol 71
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pp. o359-o360
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2009 ◽
Vol 65
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pp. o1330-o1330
2006 ◽
Vol 62
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pp. o3107-o3108
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