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(Z)-2-氧代-3-(1,2-二氢喹啉-2-亚基)丙酸乙酯

(Z)-Ethyl 2-oxo-3-(1,2-dihydroquinolin-2-yl-idene)propano-ate.

作者信息

Valkonen Arto, Kolehmainen Erkki, Ośmiałowski Borys, Gawinecki Ryszard

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 23;66(Pt 7):o1746-7. doi: 10.1107/S160053681002324X.

DOI:10.1107/S160053681002324X
PMID:21587963
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3007001/
Abstract

Both independent mol-ecules in the asymmetric unit of the tautomeric title compound, C(14)H(13)NO(3), a synthetic product obtained from 2-lithio-methyl-quinoline and diethyl oxalate, crystallize in the enaminone form with a Z configuration around the double bond. Intra-molecular N-H⋯O hydrogen bonds occur, generating an S(6) graph-set motif. In the crystal, weak inter-molecular C-H⋯O and π-π stacking inter-actions [centroid-centroid distances = 3.7020 (14)-3.7429 (13)Å] define a three-dimensional supra-molecular network.

摘要

互变异构的标题化合物C(14)H(13)NO(3)的不对称单元中的两个独立分子,是由2-锂代甲基喹啉和草酸二乙酯合成得到的产物,均以烯胺酮形式结晶,双键周围具有Z构型。分子内存在N-H⋯O氢键,形成S(6)图形集 motif。在晶体中,弱的分子间C-H⋯O和π-π堆积相互作用[质心-质心距离 = 3.7020 (14)-3.7429 (13)Å]定义了一个三维超分子网络。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a94/3007001/daddd8b8932a/e-66-o1746-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a94/3007001/08706c3fc0b1/e-66-o1746-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a94/3007001/de67518b2ff2/e-66-o1746-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a94/3007001/daddd8b8932a/e-66-o1746-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a94/3007001/08706c3fc0b1/e-66-o1746-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a94/3007001/de67518b2ff2/e-66-o1746-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a94/3007001/daddd8b8932a/e-66-o1746-fig3.jpg

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