Startseite Crystal structure of methyl 2,7,7-trimethyl-4-(4-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate, C20H22N2O5
Artikel Open Access

Crystal structure of methyl 2,7,7-trimethyl-4-(4-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate, C20H22N2O5

  • Jing Meng , Hai-Yu Zhou und Feng Sui EMAIL logo
Veröffentlicht/Copyright: 8. Mai 2017

Abstract

C20H22N2O5, tetragonal, P21c (no. 114), a = 16.624(6) Å, c = 14.385(6) Å, V = 3975(3) Å3, Z = 8, Rgt(F) = 0.0647, wRref(F2) = 0.2119, T = 296(2) K.

CCDC no.:: 1542737

The crystal structure is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.

Table 1

Data collection and handling.

Crystal:Yellow block
Size:0.29 × 0.27 × 0.25 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.9 cm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
2θmax, completeness:50°, >99%
N(hkl)measured, N(hkl)unique, Rint:19627, 3493, 0.063
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2369
N(param)refined:252
Programs:Bruker programs [6], SHELX [7, 8]
Table 2

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

AtomxyzUiso*/Ueq
O10.9102(2)0.4153(2)0.2410(3)0.0676(11)
O21.1892(3)0.2651(4)−0.0046(4)0.1042(17)
O40.8611(7)−0.0215(5)0.1462(7)0.195(5)
O50.8947(5)−0.0037(4)0.2860(5)0.144(3)
N10.9680(3)0.3769(3)−0.0720(3)0.0594(12)
H1A0.95130.3810−0.12840.071*
N20.8864(5)0.0190(4)0.2077(6)0.108(2)
C10.8930(3)0.4259(3)0.1597(4)0.0523(12)
C20.8255(3)0.4812(3)0.1328(4)0.0616(14)
H2A0.84630.53560.13040.074*
H2B0.78510.47950.18140.074*
C30.7847(3)0.4630(3)0.0408(4)0.0595(13)
C40.7380(4)0.3851(4)0.0477(5)0.0838(19)
H4A0.77390.34220.06430.126*
H4B0.69700.39030.09430.126*
H4C0.71350.3735−0.01130.126*
C50.7281(4)0.5299(4)0.0147(5)0.088(2)
H5A0.75740.57950.01030.131*
H5B0.70360.5180−0.04410.131*
H5C0.68710.53480.06140.131*
C60.8504(4)0.4555(4)−0.0321(4)0.0641(14)
H6A0.82740.4324−0.08800.077*
H6B0.86990.5089−0.04750.077*
C70.9203(3)0.4047(3)−0.0019(4)0.0513(12)
C80.9376(3)0.3877(3)0.0863(4)0.0511(12)
C91.0046(3)0.3314(3)0.1111(3)0.0533(12)
H9A1.03360.35410.16430.064*
C101.0631(3)0.3237(3)0.0313(4)0.0558(13)
C111.0422(3)0.3425(3)−0.0556(4)0.0562(13)
C121.0904(3)0.3342(4)−0.1410(4)0.0781(18)
H12A1.05960.3525−0.19330.117*
H12B1.13850.3658−0.13550.117*
H12C1.10460.2787−0.14970.117*
C131.1422(3)0.2875(4)0.0502(5)0.0736(16)
O3A1.1482(8)0.2638(8)0.1410(10)0.072(3)
C14A1.2146(9)0.2119(10)0.1854(13)0.110(4)
H14A1.20340.20480.25030.164*
H14B1.21630.16040.15530.164*
H14C1.26560.23830.17820.164*
H14D1.25350.19750.13890.164*
H14E1.24060.24190.23390.164*
H14F1.19120.16400.21110.164*
O3B1.1609(8)0.2998(8)0.1424(10)0.072(3)
C14B1.2427(7)0.2704(10)0.1788(12)0.110(4)
H14G1.24730.28300.24370.164*
H14H1.24670.21320.17040.164*
H14I1.28510.29660.14510.164*
H14J1.27210.24550.12910.164*
H14K1.27270.31530.20240.164*
H14L1.23430.23200.22770.164*
C150.9731(3)0.2492(3)0.1391(4)0.0555(12)
C160.9331(4)0.2033(4)0.0759(5)0.082(2)
H16A0.92400.22400.01680.099*
C170.9057(5)0.1268(4)0.0967(6)0.095(2)
H17A0.87940.09600.05210.114*
C180.9178(4)0.0985(4)0.1824(5)0.0765(17)
C190.9556(5)0.1423(5)0.2494(5)0.094(2)
H19A0.96230.12180.30900.113*
C200.9845(5)0.2193(4)0.2263(4)0.0825(19)
H20A1.01130.24990.27060.099*

Source of material

The title compound was synthesized according to a reported procedure [5]. A mixture of 5,5-dimethyl-cyclohexane-1,3-dione (10 mmol), 4-nitro-benzaldehyde (10 mmol), 3-amino-2-butenoic acid methyl ester (10 mmol) in ethanol (100 mL) was refluxed for 2–3 h and then cooled to room temperature. After filtering, the precipitates were sequentially washed with ice-cooled water and ethanol and then dried under a vacuum.

Experimental details

Hydrogen atoms were placed in calculated positions and were included in the refinement using the riding model approximation, with Uiso(H) set to 1.2Ueq(C,N). [C, N; 1.5Ueq(C) for methyl hydrogens]. Extensive residual density was found at the carboxylate ester group, which was interpreted and modelled as 0.505(10) : 0.495(10) disorder.

Discussion

4-Arylpolyhydroquinoline derivatives are the most commonly encountered heterocycles, amongst and part of the pharmacophore of a number of compounds having medicinal properties including anticancer, antiviral, antibacterial, antioxidant, anti-HIV, antihyperglycemic and anti-dyslipidemic activities [1, 2] . In view of these findings, recent research focused on the synthesis of new 4-arylpolyhydroquinoline derivatives [3, 4] .

In the crystal structure of the title compound, the six-membered ring containing the nitrogen atom is nearly planar and the adjacent ketone ring adopts a flattened chair conformation. The quinoline ring system and nitrophenyl group are essentially perpendicular to each other while the values of the C14A-O3A-C13-C10 and O3A-C13-C10-C11 torsion angles are 169.5(12) and −172.6(8)°, respectively, indicating that the quinoline ring system and carboxylate ester group are essentially coplanar.

Award Identifier / Grant number: 81274112

Award Identifier / Grant number: 81373986

Award Identifier / Grant number: 81473372

Award Identifier / Grant number: 7152106

Funding statement: This work was supported by grants from the National Natural Science Foundation of China (81274112; 81373986; 81473372) and Beijing Municipal Natural Science Foundation (7152106).

References

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8 Sheldrick, G. M.: Crystal structure refinement with SHELXL. Acta Crystallogr. C71 (2015) 3–8.10.1107/S2053229614024218Suche in Google Scholar PubMed PubMed Central

Received: 2016-9-19
Accepted: 2017-4-9
Published Online: 2017-5-8
Published in Print: 2017-7-26

©2017 Jing Meng et al., published by De Gruyter.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Artikel in diesem Heft

  1. Cover and Frontmatter
  2. Crystal structure of poly[diaqua-(μ2-4,4′-bipyridine-κ2N:N′)manganese(II)] bis(4-chlorobenzenesulfonate) – 4,4′-bipyridine – water (1/1/2) C42H40Cl2MnN6O10S2
  3. The crystal structure of 1,2-bis[2-methyl-5-(3-cyanophenyl)-3-thienyl]-3,3,4,4,5,5-hexafluoro-cyclopent-1-ene, C29H16F6N2S2
  4. Crystal structure of the first characterized polymeric copper and sodium complex diaqua-(tris-acetato-κO,O′)(μ2-acetato-κO′′)dinatrium copper(II) monohydrate, C8H18CuNa2O11
  5. The crystal structure of the Schiff base (E)-2,6-diisopropyl-N-(pyridin-3-yl-methylene)aniline, C18H22N2
  6. Crystal structure of methyl 2,7,7-trimethyl-4-(4-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate, C20H22N2O5
  7. Crystal structure of bis(1,3-bis(diphenylphosphino)propane-κ2P,P′)silver(I) trifluorosulfonate–methanol (1:0.5), [Ag(C27H26P2)]SO3CF3⋅0.5CH3OH
  8. Crystal structure of μ-1,4-bis(diphenylphosphine)butane-2,9-dimethyl-1,10-phenanthroline-κ2N:N′-bis(cyano-κC)dicopper(I)]-water, C58H56Cu2N6O2P2
  9. Crystal structure of N2,N6-bis(1-hydrazinyl-2-methyl-1-oxopropan-2-yl) pyridine-2,6-dicarboxamide, C15H23N7O4
  10. Crystal structure of 1,3-dimethyl-2-phenyl-1H-perimidin-3-ium iodide, C19H17IN2
  11. Crystal structure of diaqua-(2,2′-(butane-1,4-diyl)-bis(5-carboxy-1H-imidazole-4-carboxylato)-κ4O,O′,N,N′)cadmium(II) monohydrate, C14H18O11N4Cd
  12. Crystal structure of ethyl (E)-3-(cyclopropylamino)-2-(2,4-dichloro-5-fluorobenzoyl) acrylate, C15H14Cl2FNO3
  13. Crystal structure of bis-(1-(4-chlorophenyl)-3-phenyl-4-thenoyl-1H-pyrazol-5-ol-κ2O,O′)-(N,N-dimethylformamide)zinc(II), C43H31Cl2N5O5S2Zn
  14. Crystal structure of tetrakis(μ3-2-(N-(2-hydroxyethyl)amino)ethoxo)-tetrachloro-tetra-cobalt(II) methanol solvate, C17H44Cl4Co4N4O9
  15. Crystal structure of 3-amino-1-(4-bromophenyl)-9-methoxy-1H-benzo[f]chromene-2-carbonitrile, C21H15BrN2O2
  16. Crystal structure of 2-amino-4-(4-isopropyl-phenyl)-3-cyano-5-oxo-4H,5H-pyrano[3,2-c]chromene, C22H18N2O3
  17. Crystal structure of 3-amino-8-methoxy-1-(4-methoxy phenyl)-1H-benzo[f]chromene-2-carbonitrile, C22H18N2O3
  18. Crystal structure of monoaqua-[6,6′-((1E,1′E)-(1,2-phenylene bis(azanylylidene))bis(methanylylidene))bis(4-bromo-2-nitrophenolato-κ4N,N′,O,O′)]zinc(II), C20H12Br2N4O7Zn
  19. Crystal structure of 11-(4-(dimethylamino)phenyl)-17-hydroxy-13-methyl-17-(prop-1-yn-1-yl)-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one – acetonitril (1/2), C33H41N3O2
  20. Crystal structure of tert-butyl (phenylsulfinyl)carbamate, C11H15NO3S
  21. Crystal structure of catena-poly{diaqua-bis(3-(1H-1,2,4-triazol-1-yl)benzoato-κ2O:N)copper(II)} monohydrate, C18H18CuN6O7
  22. Crystal structure of tetraaqua-bis(3-(4H-1,2,4-triazol-4-yl)benzoato-κN)cobalt(II), C18H20CoN6O8
  23. The crystal structure of 4-bromo-N-cyclopropyl-2,5-difluorobenzenesulfonamide, C9H8BrF2NO2S
  24. Crystal structure of ([3,3′-bipyridine]-6,6′-dicarboxylato-κ2O:O′)-bis(1,2-bis(4-pyridyl)ethane-κ2N:N′)disilver(I) dihydrate, C37H35Ag2N5O6
  25. The crystal structure of (4-(1H-1,2,4-triazol-1-yl)benzoato-κN)-[4-(1H-1,2,4-triazol-1-yl)benzoic acid-κN]silver(I), C18H13AgN6O4
  26. Crystal structure of 3-(4-methoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one, C17H16O2
  27. Crystal structure of bis(2-((E)-((4-((E)-1-(ethoxyimino)ethyl)phenyl)imino)methyl)-5-methoxyphenolato-κ2O,N)copper(II), C36H38CuN4O6
  28. Crystal structure of poly[1,2-bis(1,2,4-triazol-4-yl)ethane-κ2N:N′]silver(I) bromate monohydrate]silver(I), C6H10AgBrN6O4
  29. The crystal structure of 2,3,5-triphenyl-2,3-dihydro-1H-tetrazol-1-ium 2,3-dioxoindoline-5-sulfonate, C27H19N5O5S
  30. Crystal structure of 3-(2-amino-1,3-selenazol-4-yl)-2H-chromen-2-one – dimethylformamide (1/1), C15H15N3O3Se
  31. Crystal structure of diethyl 3,3′-(diazene-1,2-diyl)(E)-dibenzoate, C18H18N2O4
  32. Crystal structure of cis-bis((1H-benzimidazol-2-yl)methanol-κN,O)-bis(isothiocyanato-κN)nickel(II), C18H16N6NiO2S2
  33. Crystal structure of bis(2-(2′-hydroxy-5′-methoxyphenyl)-1H-benzimidazole)boron – tetrahydrofuran (1/1), C36H37N4O6B
  34. Crystal structure of poly[aqua-bis(nitrato-κ2O,O′)-(μ3-1,3-benzimidazol-3-ium-1,3-diacetato-κ4O,O′:O′′:O′′′)dysprosium(III)], C11H11DyN4O11
  35. Crystal structure of n-butyl-tris(dicyclo-hexylamido)hafnium(IV), C40H75HfN3
  36. Crystal structure of (E)-1-[1-(3-chloro-4-fluoro-phenyl)ethylidene]-2-(2,4-dinitrophenyl)hydrazine, C28H20Cl2F2N8O8
  37. The crystal structure of ethyl 4-((2-hydroxybenzyl)amino)benzoate, a Schiff base, C16H17NO3
  38. Crystal structure of 3-(2-(4-isobutylphenyl)propanoyl)-1-methylimidazolidine-2,4-dione, C17H22N2O3
  39. Crystal structure of poly[(μ3-2-(pyrazin-2-ylthio)acetato-κ3N:O:S)silver(I)], C6H5AgN2O2S
  40. Crystal structure of (E)-1-(3-((E)-((2-hydroxynaphthalen-1-yl)methylene)amino)phenyl)ethanone O-benzyl oxime, C26H22N2O2
  41. Crystal structure of (E)-2,3-dihydroxybenzaldehyde O-(2-((((E)-1-(2,5-dihydroxyphenyl)ethylidene)amino)oxy)ethyl) oxime monohydrate, C17H20N2O7
  42. Crystal structure of 4-(chloromethyl)-3-nitrobenzoic acid, C8H6ClNO4
  43. Crystal stucture of 4-((10H-phenothiazin-10-yl)methyl)-2,6-di-tert-butylphenol, C27H31NOS
  44. The crystal structure of ethyl 1-(4-nitrophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate, C13H10F3N3O4
  45. Crystal structure of catena-poly[di-(μ3-oxido-κ3O:O:O)-tetraoxido-(μ2-5′-(pyrazin-2-yl)-1H,2′H-3,3′-bi(1,2,4-triazole)-κ2N:N′)dimolybdenum(VI)], C8H6Mo2N8O6
  46. Crystal structure of (3,6-dioxocyclohexa-1,4-diene-1,4-bis(olato)-κ4O,O′:O′′,O′′′)-bis(tris(2-pyridylmethyl)amine-κ4N,N′,N′′,N′′′))-dizinc(II) bis(hexafluorophosphate(V)), C42H38F12N8O4P2Zn2
  47. Crystal structure of catena-poly[hexakis(μ2-2-acetylphenolato-κ3O:O,O′)trimanganese(II)], C48H42Mn3O12
  48. The crystal structure of 2,2-difluoro-4-(trifluoromethyl)-2,5-dihydro-[1,3,2]dioxaborinino[5,4-c]chromen-3-ium-2-uide, C11H6BF5O3
  49. Crystal structure of methyl (E)-2-(4-(diethylamino)-2-hydroxybenzylidene)hydrazine-1-carboxylate, C13H19N3O3
  50. The crystal structure of tert-butyl 2,6-dihydropyrrolo[3,4-c]pyrazole-5(4H)-carboxylate, C10H15N3O2
  51. Crystal structure of 1,1-bis(η5-adamantylcyclopentadienyl)-3-phenyl-2-trimethylsilyl-2,3-dihydroisotitanazole, C42H55NSiTi
  52. Crystal structure of 2-(4-(2-(4-benzylpiperazin-1-yl)ethyl)benzyl)isoindoline-1,3-dione, C28H29N3O2
  53. Important impurity of Flupirtine – a single crystal study on ethyl (6-amino-5-((ethoxycarbonyl)amino)pyridin-2-yl)(4-fluorobenzyl)carbamate, C18H21FN4O4
  54. Crystal structure of ethyl 3-(4-methoxyphenyl)-1-(2-(4-methoxyphenyl)-2-oxoethyl)-1H-pyrazole-5-carboxylate, C22H22N2O5
  55. Crystal structure of 2,3,9,10-tetramethoxy-5,6-dihydroisoquinolino[2,1-b]isoquinolin-7-ium 5-hydroxy-3-(4-hydroxyphenyl)-4-oxo-4H-chromen-7-olate methanol solvate, C37H35N1O10
  56. The crystal structure of the inner salt of 2-[(aminoiminomethyl)amino]ethylcarbamic acid [systematic name: (2-((diaminomethylene)ammonio)ethyl)carbamate], C4H10N4O2
  57. Crystal structure of (8-hydroxy-5-nitroquinolinium) perchlorate – 8-hydroxy-5-nitroquinoline (1/1), C18H13ClN4O10
  58. The crystal structure of (5-methyl-1,2,4-oxadiazol-3-yl)ferrocene, C13H12FeN2O
  59. Crystal structure of methyl 1-(2-(fluorosulfonyl)ethyl)-2-oxocyclopentanecarboxylate, C9H13FO5S
  60. Crystal structure of the triclinic modification of 1-methyl-4-nitroimidzole, C4H5N3O2
  61. Corrigendum
  62. Crystal structure of 4-bromo-2-(1H-pyrazol-3-yl)phenol, C9H7BrN2O
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