6533b855fe1ef96bd12b0a91

RESEARCH PRODUCT

(Z)-Ethyl 2-oxo-3-(1,2-dihydroquinolin-2-ylidene)propanoate

Ryszard GawineckiBorys OśmiałowskiArto ValkonenErkki Kolehmainen

subject

chemistry.chemical_classificationDouble bondHydrogen bondChemistryStackingGeneral ChemistryCondensed Matter PhysicsBioinformaticsOrganic PapersMedicinal chemistryTautomerlcsh:ChemistryCrystallcsh:QD1-999General Materials ScienceDiethyl oxalate

description

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.

https://doi.org/10.1107/s160053681002324x