Startseite Crystal structure of 2-(dimethylamino)ethyl 4-aminobenzoate, C11H16N2O2
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Crystal structure of 2-(dimethylamino)ethyl 4-aminobenzoate, C11H16N2O2

  • Linglan Li , Hui Liu EMAIL logo , Zhongjun Wu , Junfeng Miao und Shu Zhang
Veröffentlicht/Copyright: 7. Dezember 2018

Abstract

C11H16N2O2, orthorhombic, P212121 (no. 19), a = 6.1516(10) Å, b = 13.711(2) Å, c = 13.7392(18) Å, V = 1158.8(3) Å3, Z = 4, Rgt(F) = 0.0657, wRref(F2) = 0.1940, T = 293(2) K.

CCDC no.: 1859784

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.

Source of materials

Following a literature procedure [4], 0.68 g 4-aminobenzoic acid, 0.71 g 2-chloro-N,N′-dimethylethylamine hydrochloride and 1.72 g anhydrous NaHCO3 were added to 8 mL acetone. The mixture was stirred, cooled by an ice water bath for 5 h. After the reaction was complete, the mixture was filtered and the solvent was removed under reduced pressure. A pale yellow oil was afforded which was dissolved in 5 mL CH2Cl2 and washed with 2 × 5 mL saturated Na2CO3 and 5 mL water. The organic layer was dried by Na2SO4, concentrated under

Table 1:

Data collection and handling

Crystal:Clear light colourless
Size:0.41×0.23×0.22 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.083 cm1
Diffractometer, scan mode:Xcalibur, Eos, Gemini, ω scans
2θmax, completeness:58.868°, 99.43%
N(hkl)measured, N(hkl)unique, Rint:10746, 2806, 0.037
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 1790
N(param) refined:140
Programs:SHELX [1], Bruker programs [2], DIAMOND [3]
Table 2:

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

AtomxyzUiso*/Ueq
O10.5578(6)0.5126(2)0.6247(2)0.0731(9)
O20.2857(6)0.4716(2)0.7217(2)0.0739(9)
N20.8420(6)0.4255(2)0.4792(2)0.0645(10)
N10.0721(7)0.9158(3)0.6275(3)0.0781(12)
H1A0.106280.936670.570150.094*
H1B−0.067380.918270.634040.094*
C10.1433(7)0.8218(3)0.6367(3)0.0547(10)
C20.0306(7)0.7539(3)0.6911(3)0.0608(10)
H2−0.099070.771640.721110.073*
C50.4165(7)0.7005(3)0.6054(3)0.0581(10)
H50.547620.682930.576610.07*
C40.3021(7)0.6323(3)0.6597(2)0.0506(9)
C70.3756(7)0.5316(3)0.6733(3)0.0561(10)
C60.3389(8)0.7933(3)0.5935(3)0.0636(11)
H60.417140.837820.556370.076*
C30.1070(7)0.6613(3)0.7014(3)0.0605(11)
H30.026570.616480.737250.073*
C80.6362(10)0.4137(4)0.6317(4)0.0963(19)
H8A0.655760.396450.699590.116*
H8B0.529910.369570.603820.116*
C100.7624(12)0.3494(4)0.4173(6)0.118(2)
H10A0.822050.288040.43780.176*
H10B0.805040.362240.351320.176*
H10C0.606650.346860.421280.176*
C90.8361(11)0.4037(4)0.5818(4)0.103(2)
H9A0.885230.337040.590230.123*
H9B0.94150.445470.613830.123*
C111.0719(10)0.4448(5)0.4572(5)0.112(2)
H11A1.154670.386090.466060.168*
H11B1.12590.494450.500110.168*
H11C1.085390.466390.390990.168*

reduced pressure to give a colorless oil. The residual product was recrystallized by EtOAc and the target product was obtained with a yield of 70%, m.p.: 121–122 °C. 1HNMR (300 MHz,CDCl3): 1H NMR (300 MHz, CDCl3) δ 7.87 (d, J = 8.7 Hz, 1H), 6.64 (d, J = 8.7 Hz, 1H), 4.39 (t, J = 5.9 Hz, 1H), 4.10 (s, 1H) 2.71 (t, J = 5.9 Hz, 1H), 2.35 (s, 3H).

Experimental details

The structure was solved by direct methods and refined by full-matrix least-quares on F2 using the ShelXL. All hydrogen atoms were placed in idealized positions and refined as riding on their parent atoms.

Comment

2-(Dimethylamino)ethyl 4-aminobenzoate compound has received particular attention owing to their widely application in small molecule inhibitor of the PHLPP, pharmaceutical intermediates, and local anesthesia. For example, the amino group of 2-(dimethylamino)ethyl 4-aminobenzoate compound can be used to synthesize acridine-triazenes compounds. These compounds have highly promising features for the utilization of DNA-binding of combilexins [4], [5], [6]. This paper reports the crystal structure of 2-(dimethylamino)ethyl 4-aminobenzoate which is only built up by the C11H16N2O2 molecules, in which all bond lengths are in normal ranges and are similar to parameters derived for the structures of related p-amin-benzoates [7], [8].

Acknowledgements

We gratefully acknowledge support by the science foundation of Wuhan institute of technology (No. K201509).

References

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3. Brandenburg, K.: DIAMOND. Visual crystal structure information system. Version 3.2i. Crystal Impact, Bonn, Germany (2012).Suche in Google Scholar

4. McConnaughie, A. W.; Jenkins, T. C.: Novel acridine-triazenes as prototype combilexins: Synthesis, DNA binding, and biological activity. J. Med. Chem. 38 (1995) 3488–3501.10.1021/jm00018a009Suche in Google Scholar PubMed

5. Sierecki, E.; Sinko, W.; McCammon, J. A.; Newton, A. C.: Discovery of small molecule inhibitors of the PH domain leucine-rich repeat protein phosphatase (PHLPP) by chemical and virtual screening [J]. J. Med. Chem. 53 (2010) 6899–6911.10.1021/jm100331dSuche in Google Scholar PubMed PubMed Central

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7. Lynch, D. E.; McClenaghan, I.: Monoclinic form of ethyl 4-aminobenzoate (benzocaine). Acta Crystallogr. E58 (2002) o708–o709.10.1107/S1600536802009674Suche in Google Scholar

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Received: 2018-08-03
Accepted: 2018-10-08
Published Online: 2018-12-07
Published in Print: 2019-03-26

©2019 Linglan Li et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 Public License.

Artikel in diesem Heft

  1. Cover and Frontmatter
  2. Crystal structure of 1H-indole-5-carboxylic acid – 4,4′-bipyridine (2/1), C14H11N2O2
  3. Crystal structure of ethyl 2-amino-4-(4-ethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c] chromene-3-carboxylate, C23H21NO6
  4. Crystal structure of ethyl 2-amino-4-(4-bromothiophen-2-yl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate, C16H16BrNO4S
  5. The crystal structure of 6-amino-2-methyl-8-(4-(methylthio)phenyl)-2,3,8,8a-tetrahydroisoquinoline-5,7,7(1H)-tricarbonitrile – ethanol (1/1), C20H19N5S
  6. Crystal structure of 6-amino-8-(4-isopropylphenyl)-2-methyl-2,3,8,8a-tetrahydroisoquinoline-5,7,7(1H)-tricarbonitrile-ethanol (1/1), C24H29N5O
  7. Crystal structure of 1,1′-(ethane-1,2-diyl)bis(3-ethyl-1H-imidazol-3-ium)bis(hexafluorido phosphate), C12H20F12N4P2
  8. Crystal structure of dimethyl (3aS,6R,6aS,7S)-2-pivaloyl-2,3-dihydro-1H,6H,7H-3a,6:7,9a-diepoxybenzo[de]isoquinoline-3a1,6a-dicarboxylate, C21H25NO8
  9. Crystal structure of methyl 4-(4-bromothiophen-2-yl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H20BrNO3S
  10. Hydrothermal synthesis and crystal structure of catena-poly[bis(4-((pyridin-4-ylmethyl)amino)benzoato-κ3N:O,O′)zinc(II) – 1,2-di(pyridin-4-yl)ethene – water (1/1/1), C38H34N6O5Zn
  11. The crystal structure of 1,2-dimethyl-3,4-dinitrobenzene, C8H8N2O4
  12. Synthesis and crystal structure of trans-tetraaqua-bis(3-(((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)ammonio)propanoato-κO)zinc(II) tetrahydrate, C38H48N2O26S2Zn
  13. Crystal structure of diaqua-bis(μ2-6-chloropyridin-2-olato-κ3N,O:O)-tetrakis(chloropyridin-2-olato-κ1O)-bis(penanthroline-κ2N,N′)diterbium(III), C54H38Cl6Tb2N10O8
  14. Crystal structure of oxidobis(piperidine-1-carbodithioato-κ2S,S′)vanadium(IV), C12H20N2OS4V
  15. Crystal structure of 2-((tert-butyldimethylsilyl)oxy)-5-methylisophthalaldehyde, C15H22O3Si
  16. Crystal structure of catena-poly[tetraiodido-(μ2-1,4-bis(2-methyl-1H-imidazol-1-yl)benzene-κ2N:N′)dimercury(II)], C14H14Hg2I4N4
  17. Crystal structure of tetrakis(n-butyl)-(μ2-1,2-bis(2-oxidobenzoyl)hydrazine-1,2-diido-κ6N,O,O′:N′,O′′,O′′′)ditin(IV), C30H44N2O4Sn2
  18. Crystal structure of ethyl 2-amino-4-(4-hydroxy-3-methoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano-[4,3-b]pyran-3-carboxylate, C19H19NO7
  19. Crystal structure of 3-aminopyrazine-2-carbohydrazide, C5H7N5O
  20. Crystal structure of ethanol-bis(N-((5-(ethoxycarbonyl)-3,4-dimethyl-1H-pyrrol-2-yl)methylene)benzohydrazonato-κ2N,O)copper(II), C36H42N6O7Cu
  21. Crystal structure of 3-methyl-2-oxo-2H-chromen-7-yl propionate, C13H12O4
  22. Crystal structure of 2-(dimethylamino)ethyl 4-aminobenzoate, C11H16N2O2
  23. Crystal structure of 3-(benzo[d]thiazol-2-ylamino)isobenzofuran-1(3H)-one, C15H10N2O2S
  24. Crystal structure of 3-((1H-benzo[d]imidazol-2-yl)amino)-2-(1H-benzo[d]imidazol-2-yl)isoindolin-1-one, C22H16N6O
  25. Crystal structure of (2,2′-bipyridine-κ2N,N′)bis(4-(dimethylamino)phenyldiphenylphosphane-κP)copper(I) tetrafluoroborate, C50H48BCuF4N4P2
  26. Crystal structure of citric acid–acetonitrile (1/1), C8H11NO7
  27. Crystal structure of diethyl 2-(4-methoxyphenyl)-1-phenyl-1,2-dihydropyridine-3,5-dicarboxylate, C24H25NO5
  28. The crystal structure of poly[triaqua-bis(μ3-2,5-dihydroxyterephthalato-κ4O,O′:O′′:O′′′)-(μ4-oxalato-κ4O,O′:O′′,O′′′)cerium(III)], C9H10CeO11
  29. Crystal structure of 1-(5-(anthracen-9-yl)-3-(4-hydroxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)propan-1-one, C26H22N2O2
  30. Synthesis and crystal structure of 5-(8-(((2-carboxyethyl)ammonio)methyl)-7-hydroxy-4-oxo-4H-chromen-3-yl)-2-hydroxybenzenesulfonate trihydrate, C19H23NO12S
  31. Crystal structure of rac-trans-6,6′-((cyclohexane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2-bromophenolato-κ4N,N′,O,O′)-bis(methanol)cobalt(III) chloride, C22H25Br2Co8N2O4Cl
  32. Crystal structure of 1-((R)-(2′-(dimethylamino)-[1,1′-binaphthalen]-2-yl))-3-((S)-2-hydroxy-1-phenylethyl)thiourea, C31H29N3OS
  33. Crystal structure and photochemical property of 1,8-bis(p-tolylthio)pyrene, C30H22S2
  34. Crystal structure of 2-(2-(2-amino-6-chloro-9H-purin-9-yl)ethyl)propane-1,3-diyl diacetate, C14H18ClN5O4
  35. Crystal structure of ethyl 5-amino-1-(pyridin-2-yl)-1H-pyrazole-4-carboxylate, C11H12N4O2
  36. Crystal structure of trichloro-(4-chloro-2,6-bis(diphenylmethyl)-N-((pyridin-2-yl)methylene)aniline)-aluminum dichloromethane solvate, C39H31AlCl6N2
  37. Bis(ethanol-κO)-bis(6-aminopicolinato-κ2N,O)magnesium(II), C16H22O6N4Mg
  38. Crystal structure of catena-poly[aqua-(μ2-1,7-dicarba-closo-dodecaborane-1,7-dicarboxylato-κ2O:O′)-(1,10-phenanthrolin-κ2N,N′)copper(II)], C16H20B10CuN2O5
  39. Crystal structure of (1,2-dicarba-closo-dodecaborane-1,2-dithiolato κ2S,S′)-bis(1,10-phenanthroline κ2N,N′)zinc(II), C26H26B10Zn4S2
  40. Crystal structure of diaqua-bis(1,10-phenanthroline-κ2N,N′)-bis(1,7-dicarba-closo-dodecaborane-1,7-dicarboxylato-κ3O,O′:O′′) dicobalt(II) — ethanol (1/1), C34H46B20Co2N4O11
  41. Crystal structure of ((5,5′-dimethoxy-2,2′-(1,2-phenylenebis(nitrilomethylidyne)))diphenolato-κ4O,N,O′,N′)copper(II), C22H18N2CuO4
  42. Crystal structure of 1-(5-bromo-2-(4-methoxyphenyl)-1H-indol-7-yl)ethan-1-ol, C17H14BrNO2
  43. Crystal structure of (E)-2-(((6-bromopyridin-2-yl)methylene)amino)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one, C34H34N5O2Br
  44. Crystal structure of (Z)-2-((adamantan-1-ylimino)methyl)-5-methoxyphenol, C18H23NO2
  45. Crystal structure of bis((E)-2-ethoxy-6-(((2-hydroxyethyl)imino)methyl)phenolato-κ2N,O)copper(II), C22H28N2CuO6
  46. Crystal structure of 2,3-diphenyl-5,6-bis(4-methoxyphenyl)pyrazine, C30H24N2O2
  47. Crystal structure of dichlorido bis[1-((2,4-dimethyl-1H-imidazol-1-yl)methyl)-1H-benzo[d][1,2,3]triazole-κN]cadmium(II), Cd(C12H13N5)2Cl2
  48. The crystal structure of 1,5-di(naphthalen-2-yl)-3-(pyridin-2-yl)pentane-1,5-dione, C30H23NO2
  49. The crystal structure of 2-((3-methylthiophen-2-yl)methylene)malononitrile, C9H6N2S
  50. The crystal structure of 1,4-dinitroso-2,3,5,6-tetraacetoxy-piperazine, C12H16N4O10
  51. Crystal structure of bis(2,4,6-trichlorophenyl) malonate, C15H6Cl6O4
  52. The crystal structure of trans-dichlorido-bis(pyridine-2-carboxylato-κ2N,O)platinum(IV), C12H8Cl2N2O4Pt
  53. Crystal structure of 3-nitroquinoline 1-oxide, C9H6N2O3
  54. Crystal structure of 2-(piperidin-1-ium-4-yl)-1H-benzo[d]imidazol-3-ium dichloride dihydrate, C12H21Cl2N3O2
  55. Crystal structure of (4S,4aS,6aR,6bR,12aS,12bR,14aS,14bR)-3,3,6a,6b,9,9,12a-heptamethyloctadecahydro-1H,3H-4,14b-ethanophenanthro[1,2-h]isochromene, C30H50O
  56. Crystal structure of (E)-4-((2-fluoro-3-(trifluoromethyl)benzylidene)amino)-3-methyl-1H-1,2,4-triazole-5(4H)-thione, C11H8F4N4S
  57. Crystal structure of 5-(4-fluorophenyl)-4-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione, C9H8FN3S
  58. Crystal structure of catena-poly[(1-(4-fluorophenyl)-N–(5-((trimethylstannyl)thio)-1,3,4-thiadiazol-2-yl)methanimine], (C12H14FN3S2Sn)n
  59. The crystal structure of 4-(methoxycarbonyl)benzoic acid, C9H8O4
  60. The crystal structure of N,N′-(6-(thiophen-2-yl)-1,3,5-triazine-2,4-diyl)bis(2-methylpropane-2-sulfonamide) – ethyl acetate(2/1), C34H54N10O6S6
  61. Crystal structure of N′-(1-(2-hydroxyphenyl)ethylidene)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carbohydrazide, C18H17N5O2
  62. Crystal structure of 3-(4-methoxyphenyl)-1-phenylprop-2-yn-1-one, C16H12O2
  63. Crystal structure of N′-(1-(benzofuran-2-yl)ethylidene)-2-cyanoacetohydrazide, C13H11N3O2
  64. Crystal structure of hexa-μ2-chlorido-μ4-oxido-tetrakis(1-vinyl-1H-imidazole-κN)tetracopper(II), C20H24Cu4Cl6N8O
  65. Crystal structure of N′-((1E,2E)-4-(7-methoxy-2-oxo-2H-chromen-8-yl)-2-methylbut-2-en-1-ylidene)-4-methylbenzenesulfonohydrazide, C22H22O5N2S
  66. Crystal structure of 2-acetyl pyrene, C18H12O
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