Published in
International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 7(66), p. o1746-o1747, 2010
DOI: 10.1107/s160053681002324x
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- International Union of Crystallography
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- [www.ncbi.nlm.nih.gov] | PDF
- [www.ncbi.nlm.nih.gov] | PDF
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(Z)-Ethyl 2-oxo-3-(1,2-dihydroquinolin-2-ylidene)propanoate
,
Erkki Kolehmainen,
Borys Ośmiałowski,
Ryszard Gawinecki
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Abstract
Both independent molecules in the asymmetric unit of the tautomeric title compound, C14H13NO3, a synthetic product obtained from 2-lithiomethylquinoline and diethyl oxalate, crystallize in the enaminone form with a Z configuration around the double bond. Intramolecular N—H⋯O hydrogen bonds occur, generating an S(6) graph-set motif. In the crystal, weak intermolecular C—H⋯O and π–π stacking interactions [centroid–centroid distances = 3.7020 (14)–3.7429 (13)Å] define a three-dimensional supramolecular network.