Crystal structure of ethyl 2-(2,4,5-tri­meth­oxy­phen­yl)quinoline-4-carboxyl­ate

Acta Crystallographica Section E: Crystallographic Communications

Shrungesh Kumar, T.O.¹  Mahadevan, K.M.¹  Kumara, M.N.²  Lokanath, N.K.³  Naveen, S.⁴ 

[1] Department of Chemistry, Kuvempu University, Jnanasahyadri, Shankaraghatta 577 451, India;Department of Chemistry, Yuvaraja's College, University of Mysore, Mysore 570 005, India;Department of Studies in Physics, University of Mysore, Manasagangotri, Mysore 570 006, India;Institution of Excellence, University of Mysore, Manasagangotri, Mysore 570 006, India

关键词: CRYSTAL STRUCTURE;    QUINOLINE;    QUINOLONE-4-ETHYL CARBOXYLATE;    HYDROGEN BONDING;    C-H...O INTERACTIONS;   

DOI  :  10.1107/S2056989015011706

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the title compound, C21H21NO5, the dihedral angle between the quinoline ring system (r.m.s. deviation = 0.028 Å) and the tri­meth­oxy­benzene ring is 43.38 (5)°. The C atoms of the meth­oxy groups deviate from their attached benzene ring by −0.396 (2), −0.049 (2) and 0.192 (2) Å for the ortho-, meta- and para-substituents, respectively. The pendant ethyl chain is disordered over two orientations in a 0.527 (5):0.473 (5) ratio. A short intra­molecular C—H⋯O contact closes an S(6) ring. In the crystal, inversion dimers linked by pairs of weak C—H⋯O inter­actions generate R22(6) loops. The dimers are linked by further C—H⋯O inter­actions to generate [1-10] chains.

【 授权许可】

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