Startseite Crystal structure of 3-chloro-4-(4-ethylpiperazin-1-yl)aniline monohydrate, C12H20ClN3O
Artikel Open Access

Crystal structure of 3-chloro-4-(4-ethylpiperazin-1-yl)aniline monohydrate, C12H20ClN3O

  • Jia Gu , Jin-Zhu Chen , Xu-Liang Nie ORCID logo EMAIL logo , Guo-Ping Huang und Jian-Ping Huang ORCID logo EMAIL logo
Veröffentlicht/Copyright: 15. Februar 2021

Abstract

C12H20ClN3O, monoclinic, C2/c (no. 15), a = 27.228(5) Å, b = 11.380(2) Å, c = 9.3775(16) Å, β = 95.733(2)°, V = 2891.1(9) Å3, Z = 8, Rgt(F) = 0.0372, wRref(F2) = 0.1058, T = 296(2) K.

CCDC no.: 2059320

The molecular structure is shown in the Figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Colorless block
Size:0.18 × 0.16 × 0.13 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.26 mm−1
Diffractometer, scan mode:Bruker apex-II, φ and ω
θmax, completeness:25.5°, >99%
N(hkl)measured, N(hkl)unique, Rint:10,858, 2685, 0.019
Criterion for Iobs, N(hkl)gt:Iobs > 2σ(Iobs), 2149
N(param)refined:164
Programs:Bruker [1], shelx [2], [, 3], diamond [4]
Table 2:

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

AtomxyzUiso*/Ueq
C10.13460 (6)0.35303 (16)0.00928 (17)0.0521 (4)
C20.11369 (6)0.24296 (16)0.00039 (17)0.0547 (4)
H20.13320.17710.02280.066*
C30.06366 (6)0.22937 (16)−0.04175 (18)0.0551 (4)
C40.03606 (7)0.33011 (18)−0.0733 (2)0.0614 (5)
H40.00260.3235−0.10310.074*
C50.05739 (7)0.43980 (17)−0.06111 (19)0.0590 (5)
H50.03770.5056−0.08180.071*
C60.10742 (6)0.45576 (16)−0.01896 (16)0.0513 (4)
C70.10565 (8)0.66129 (17)−0.09501 (19)0.0648 (5)
H7A0.07580.6833−0.05340.078*
H7B0.09650.6341−0.19210.078*
C80.13921 (8)0.76607 (18)−0.0976 (2)0.0692 (5)
H8A0.16830.7444−0.14320.083*
H8B0.12230.8282−0.15380.083*
C90.17743 (7)0.71452 (18)0.1346 (2)0.0636 (5)
H9A0.18570.74220.23190.076*
H9B0.20780.69140.09630.076*
C100.14385 (7)0.60975 (17)0.13643 (18)0.0601 (5)
H10A0.16020.54770.19390.072*
H10B0.11410.63140.17910.072*
C110.18678 (9)0.9120 (2)0.0399 (2)0.0763 (6)
H11A0.17110.9674−0.02890.092*
H11B0.21730.88640.00460.092*
C120.19886 (9)0.9741 (2)0.1803 (3)0.0877 (7)
H12A0.16880.99530.21950.132*
H12B0.21761.04380.16530.132*
H12C0.21790.92300.24590.132*
N10.04314 (6)0.11767 (14)−0.06126 (18)0.0676 (4)
H1A0.01260.1100−0.09360.081*
H1B0.06100.0564−0.04100.081*
N20.13080 (6)0.56732 (13)−0.01063 (14)0.0556 (4)
N30.15420 (6)0.80964 (13)0.04760 (15)0.0584 (4)
O10.06796 (6)0.91711 (15)0.13827 (18)0.0796 (4)
Cl10.19832 (2)0.36051 (5)0.05142 (6)0.0784 (2)
H1W0.0921 (7)0.8755 (19)0.125 (2)0.100 (9)*
H2W0.0637 (9)0.918 (2)0.2244 (12)0.106 (10)*

Source of material

2-Chloro-1-fluoro-4-nitrobenzene (3.52 g, 20 mmol), 1-ethylpiperazine (2.85 g, 25 mmol) and K2CO3 (2.76 g, 20 mmol) were dissolved in dry N,N-dimethylformamide (40 mL) with stirring and heating at 90 °C for 1 h [5]. At the beginning of the reaction, the solution was orange and cloudy. After the reaction completed (monitored by TLC), it was naturally cooled to room temperature, water was added to the mixture, and a large amount of brown product was precipitated. The product was filtered, washed with water three times respectively and air-dried. The yield was 99% (based on 2-chloro-1-fluoro-4-nitrobenzene). The above solid and palladium (Pd/C 5%) catalyst were dissolved in the dry methanol at room temperature, and reacted for 2 h under hydrogen pressures [6]. After the reaction is completed (TLC detection), the catalyst was filtered off, and the filtrate was concentrated and dried under reduced pressure. The title compound (1.024 g) was obtained. The yield was 83%. Elemental Anal. Calcd. (%) for C12H20ClN3O (257.76): C, 60.12; H, 7.57; N, 17.53. Found (%): C, 58.65; H, 7.66; N, 17.10. The crystals of the title compound were obtained from ethyl acetate after one week of slow volatilisation at room temperature.

Experimental details

H atoms were included in calculated positions and refined as riding atoms, with C–H = 0.93 Å with Uiso(H) = 1.5 Ueq(C) for methyl H atoms and 1.2 Ueq(C) for all other H atoms.

Comment

Piperazine compounds are an important branch of heterocyclic compounds. Piperazine compounds have important effects on the human body, such as stimulating psychology, causing hallucinations, anti-tumor and anti-cancer [7]. Especially 1,4-disubstituted piperazine derivatives can be used as important intermediates in the synthesis of clinical piperazine APIs, such as Etoperidone, Mepiprazole, Nefazodone (Nefazodone) etc. [8]. Even 1,4-disubstituted piperazine derivatives combined with other groups can be used as drugs for the treatment of Alzheimer’s disease [9]. However, there are hallucinogenic and psychological stimulation effects of piperazine derivatives [5]. After long time use, it will bring many unpredictable problems. Therefore, the synthesis and biological activity of piperazine derivatives have received attention by chemists.

There is one organic molecule and one water molecule in the asymmtric unit (shown in the Figure). In the molecule of the title compound bond lengths and angles within 3-chloro-4-(4-ethylpiperazin-1-yl)aniline are very similar to those given in the literature for butyl 4-((2-chloro-4-(4-hexanoylpiperazin-1-yl) phenyl)diazenyl)benzoate [6] and another closely related molecule [10]. The piperazine ring of the title compound adopts chair conformation. The torsion angles of C1–C6–N2–C7, C6–N2–C7–C8 and C8–N3–C11–C12 are 155.7(2)°, −169.2(2)° and 170.0(2)°, respectively.


Corresponding authors: Xu-Liang Nie, Department of Chemistry/Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, Jiangxi Agricultural University, Nanchang330031, People’s Republic of China, E-mail: ; and Jian-Ping Huang, College of Sciences/Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, Nanchang330045, People’s Republic of China, E-mail:

Funding source: Natural Science Foundation of Science and Technology Department of Jiangxi Province

Award Identifier / Grant number: 20202BBEL53028

Award Identifier / Grant number: 20171BBE50027

Award Identifier / Grant number: 20171BBG70029

Funding source: Natural Science Foundation of Education Department of Jiangxi Province

Award Identifier / Grant number: GJJ170275

Award Identifier / Grant number: GJJ200404

Funding source: The Reform of Higher Education Foundation of Jiangxi Province

Award Identifier / Grant number: JXJG-17-3-18

Funding source: Natural Science Foundation of Nanchang City

Award Identifier / Grant number: 2014HZZC07

Award Identifier / Grant number: 2018CXTD014

Funding source: Natural Science Foundation of Jiangxi Agriculture University

Award Identifier / Grant number: 09004634

Award Identifier / Grant number: 09005194

Award Identifier / Grant number: 201910410043

Acknowledgements

X-ray data were collected at Instrumental Analysis Center Nanchang Hangkong University, Nanchang, 330063, People’s Republic of China.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: Natural Science Foundation of Science and Technology Department of Jiangxi Province (Nos. 20202BBEL53028; 20171BBE50027; 20171BBG70029), Natural Science Foundation of Education Department of Jiangxi Province (Nos. GJJ170275, GJJ200404), The Reform of Higher Education Foundation of Jiangxi Province (No. JXJG-17-3-18), Natural Science Foundation of Nanchang City (Nos. 2014HZZC07, 2018CXTD014), and Natural Science Foundation of Jiangxi Agriculture University (Nos. 09004634; 09005194; 201910410043).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

References

1. Bruker. APEX2, SAINT and SADABS; Bruker AXS Inc.: Madison, Wisconsin, USA, 2009.Suche in Google Scholar

2. Sheldrick, G. M. A short history of shelx. Acta Crystallogr. 2008, A64, 112–122; https://doi.org/10.1107/s0108767307043930.Suche in Google Scholar

3. Sheldrick, G. M. Crystal structure refinement with shelxl. Acta Crystallogr. 2015, C71, 3–8; https://doi.org/10.1107/s2053229614024218.Suche in Google Scholar

4. Brandenburg, K. diamond. Visual Crystal Structure Information System. Ver. 4.0; Crystal Impact: Bonn, Germany, 2015.Suche in Google Scholar

5. Shao, J. A., Liu, S. R., Liu, X. Y., Pan, Y. L., Chen, W. T. Design, synthesis and SAR study of 2-aminopyrimidines with diverse Michael addition acceptors for chemically tuning the potency against EGFRL858R/T790M. Bioorg. Med. Chem. 2020, 28, 115680; https://doi.org/10.1016/j.bmc.2020.115680.Suche in Google Scholar

6. Fawwaz, M., Mishiro, K., Nishii, R., Sawazaki, I., Shiba, K., Kinuya, S., Ogawa, K. Synthesis and fundamental evaluation of radioiodinated Rociletinib (CO-1686) as a probe to lung cancer with L858R/T790M mutations of epidermal growth factor receptor (EGFR). Molecules 2020, 25, 2914; https://doi.org/10.3390/molecules25122914.Suche in Google Scholar

7. Wen, S. Q., Ji, Z. Z., Liu, B. L. Studies on the synthesis and anticancer activity of N1,N4-bissutituted piperazine derivatives. Chin. J. Org. Chem. 1992, 2, 10–15.Suche in Google Scholar

8. Cai, L. Z., Wu, J., Xu, W. L. The synthesis of medicinal intermediates 1,4-N,N-substituted piperazines. Bull. Sci. Technol. Soc. 2008, 24, 154–155.Suche in Google Scholar

9. Szczepańska, K., Kincses, A., Vincze, K., Szymańska, E., Latacz, G., Kuder, K. J., Stark, H., Spengler, G., Handzlik, J., Kononowicz, K. N-substituted piperazine derivatives as potential multitarget agents acting on histamine H3 receptor and cancer resistance proteins. Bioorg. Med. Chem. Lett. 2020, 30, 127522; https://doi.org/10.1016/j.bmcl.2020.127522.Suche in Google Scholar

10. Awasthi, S. K., Sharma, C., Yadav, M., Pandey, G. Thermal and crystallographic studies of 1-(2-fluoro-4-nitrophenyl)-4-(prop-2-yn-1-yl)piperazine single crystal. Proc. Natl. Acad. Sci. India 2014, 84, 19–25; https://doi.org/10.1007/s40010-013-0102-8.Suche in Google Scholar

Received: 2020-01-14
Accepted: 2020-01-28
Published Online: 2021-02-15
Published in Print: 2021-05-26

© 2021 Jia Gu et al., published by De Gruyter, Berlin/Boston

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

Artikel in diesem Heft

  1. Frontmatter
  2. New Crystal Structures
  3. The crystal structure of bis(μ2-5-chloro-2-oxido-N-(1-oxidoethylidene)benzohydrazonato-κ5N,O,O′:N′,O′′)hexkis(pyridine-κ1N)trinickel(II) - pyridine (1/1), C63H57Cl2N13Ni3O6
  4. Crystal structure of [(μ2-succinato κ3O,O′:O′′)-bis-(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane)]dinickel(II)] diperchlorate, dihydrate C36H82Cl2N8Ni2O15
  5. Crystal structure of catena-poly[aquabis(3-nitrobenzoato-κ2O:O′)-(μ2-pyrazine-N: N′)cadmium(II)], C18H14N4O9Cd
  6. Crystal structure of 4-(2,2-difluoroethyl)-2,4,6-trimethylisoquinoline-1,3(2H,4H)-dione, C14H15F2NO2
  7. The crystal structure of thioxanthen-9-one-10,10-dioxide, C13H8O3S – a second polymorph
  8. Crystal structure of (E)-2-((2-methoxy-3-pyridyl)methylene)-7-fluoro-3,4-dihydronaphthalen-1(2H)-one, C17H14FNO2
  9. The crystal structure of diaquahydrogen 2,5-dimethylbenzenesulphonate, C8H14O5S
  10. The crystal structure of N-(4-(cyclohexylimino)pent-2-en-2-yl)cyclohexanamine, C17H30N2
  11. The twinned crystal structure of 1,3-phenylenedimethanaminium dibromide, C8H14Br2N2
  12. Crystal structure of 2,4,7,9-tetranitro-10H-benzofuro[3,2-b]indole – dimethyl sulfoxide (1/1), C16H11N5O10S
  13. Crystal structure of 2,6-bis(2-(pyridin-3-yl)ethyl)pyrrolo[3,4-f]isoindole-1,3,5,7(2H,6H)-tetraone, C24H18N4O4
  14. The crystal structure of 3,4-dichlorobenzoic acid chloride, C7H3Cl3O
  15. Crystal structure of 1,1′-(1,4-phenylenebis(methylene))bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-k2S:S)zinc(II), C26H18N6ZnS4
  16. Crystal structure of tetrakis(μ-naphthalene-1-carboxylato-κ2O,O′)bis(methanol)copper(II), C46H36Cu2O10
  17. Crystal structure of 9-methyl-3-methylene-1,2,3,9-tetrahydro-4H-carbazol-4-one, C14H13NO
  18. Crystal structure of bis(amino(carbamothioylamino)methaniminium) 3-nitrophthalate monohydrate, C12H19N9O7S2
  19. Crystal structure of 3,3′-(1,2-phenylene-bis(methylene))bis(1-ethyl-1H-imidazol-3-ium) bis(hexafluorophosphate), C18H24F12N4P2
  20. The crystal structure of 5-hydroxy-6,8-dimethoxy-2-methyl-4H-benzo[g]chromen-4-one– rubrofusarin B, C16H14O5
  21. The crystal structure of bis(ethanol-kO)- bis(6-aminopicolinato-k2N,O)manganese(II), C16H22O6N4Mn
  22. The crystal structure of 3,3′-((carbonylbis(azanediyl))bis(ethane-2,1-diyl)) bis(1-methyl-1H-benzo[d]imidazol-3-ium) tetrafluoroborate monohydrate, C21H28N6O3B2F8
  23. Crystal structure of dimethanol-dichlorido-bis( μ2-2-(((1,5-dimethyl-3-oxo-2- phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino)methyl)phenolato- κ4O:O,O′,N)dinickel (II), C20H24ClNiN3O4
  24. The crystal structure of methyl 5-(trifluoromethyl)-1H-pyrrole-2-carboxylate, C7H6F3NO2
  25. Crystal structure of (OC‐6‐13)‐aqua‐tris (3‐bromopyridine‐κ1N)‐bis(trifluoroacetato‐κ1O)cadmium(II) C19H14Br3CdF6N3O5
  26. Crystal structure of methyl (E)-3-(4-(2-ethoxy-2-oxoethoxy)phenyl) acrylate, C14H16O5
  27. Crystal structure of methyl 4-acetoxy-3,5-dimethoxybenzoate, C12H14O6
  28. The crystal structure of 2-(1H-benzimidazol-2-yl)-3-bromo-5-chlorophenol, C13H8BrClN2O
  29. The crystal structure of bis(μ2-5-chloro-N-(2-methyl-1-oxidopropylidene)-2-oxidobenzohydrazonate-κ5N,O,O′:N′,O′′)pentakis(pyridine-κ1N)tricopper(II), C47H45Cl2N9Cu3O6
  30. Synthesis and crystal structure of catena-poly[aqua-bis(nitrato-κ2O:O′)- (μ2-((1 H-imidazol-1-yl)methyl)benzene-κ2 N,N′)-H2O-κ2O]cadmium(II), C14H16N6O7Cd
  31. The crystal structure of pentakis(carbonyl)-{μ-[2,3-bis(sulfanyl)propan-1-olato]}-(triphenylphosphane)diiron (FeFe)C26H21Fe2O6PS2
  32. Crystal structure of ethyl-2-(3-benzoylthioureido)propanoate, C13H16N2O3S
  33. Crystal structure of 2-methoxy-4b,5,14,15-tetrahydro-6H-isoquinolino[2′,1′:1,6] pyrazino[2,3-b]quinoxaline, C19H18N4O
  34. Crystal structure of 2,2′-[ethane-1,2-diylbis(azanylylidenemethylylidene)]bis(6-chlorophenol), C16H14Cl2N2O2
  35. The crystal structure of (Z)-3-((2-(2-(2-aminophenoxy)ethoxy)phenyl)amino)-1-phenylbut-2-en-1-one, C24H24N2O3
  36. The crystal structure of 10-(3,5-di(pyridin-4-yl)phenyl)-10H-phenoxazine dihydrate, C28H23N3O3
  37. Crystal structure of poly[dipoly[aqua-di(µ2-pyrazin-2-olato-κ2N:N′) zinc(II)], C8H8N4O3Zn
  38. Crystal structure of poly[tetra(μ2-cyanido-κ2N:O)-bis(N,N-dimethylformamide-κO)-manganese(II)-platinum(II)], C10H14MnN6O2Pt
  39. The crystal structure of aqua-chlorido-6,6′-((ethane-1,2-diylbis(azaneylylidene))bis(methaneylylidene))bis(2,4-dichlorophenolato-κ4N,N′,O,O′)manganese(III), C16H12Cl5MnN2O3
  40. Crystal structure of [di(µ2-cyanido)-dicyanido-bis(dimethyl sulfoxide-κO)- bis(2,2′-(ethane-1,2-diylbis(azanylylidenemethanylylidene))diphenolato-κ4,N,N′,O,O′)- dimanganese(III)-platinum(II)], C40H40Mn2N8O6PtS2
  41. The crystal structure of (azido)-κ1N-6,6′-((cyclohexane-1,2-diylbis(azanylylidene)) bis(methanylylidene))bis(3-bromophenolato-κ4N,N,O,O)-(methanol)-manganese(III)–methanol(1/1), C22H26Br2MnN5O4
  42. Crystal structure of 7-chloro-N-(4-iodobenzyl)-1,2,3,4-tetrahydroacridin-9-amine, C20H18ClIN2
  43. Crystal structure of catena-poly[(1,4,8,11-tetraazacyclotetradecane-κ4N,N,N,N′′′)-bis(μ2-thiocyanato-κ2N:S)-bis(thiocyanato-κS)-nickel(II)palladium(II)], C14H24N8NiPdS4
  44. Crystal structure of 3-chloro-4-(4-ethylpiperazin-1-yl)aniline monohydrate, C12H20ClN3O
  45. Crystal structure of the 2D coordination polymer poly[diaqua-bis(μ2-3- methoxyisonicotinato-κ2N:O)cobalt(II)] — dimethylformamide (1/1), C20H30CoN4O10
  46. Crystal structure of 4-[(5-chloro-2-hydroxybenzylidene)amino]-3-propyl-1H-1,2,4-triazole-5(4H)-thione, C12H13ClN4OS
  47. Crystal structure of N-(5-(2-(benzyl(1-(4-methoxyphenyl)propan-2-yl)amino)-1-hydroxyethyl)-2-(benzyloxy)phenyl)formamide, C33H36N2O4
  48. Crystal structure of 3-(methoxycarbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid, C9H12O5
  49. The crystal structure of 1-((dimethylamino)(3-nitrophenyl)methyl)naphthalen-2-ol, C19H18N2O3
  50. Crystal structure of catena-poly[di(μ2-cyanido-κ2C:N)-dicyanido-tetrakis(dimethyl sulfoxide-κO)-manganese(II)-platinum(II)], C12H24MnN4O4PtS4
  51. Crystal structure of 4-amino-N-(2-pyrimidinyl)benzenesulfonamide–1,4-dioxane (1/1), C14H18N4O4S
  52. Crystal structure of bis{1-[(benzotriazol-1-yl)methyl]-1H-1,3-(2-methyl-imidazol)}di-chloridomercury(II), [Hg(C11H11N5)2Cl2], C22H22N10Cl2Hg
  53. Crystal structure of 2, 3-bis((4-methylbenzoyl)oxy) succinic acid–N, N-dimethylformamide (1/1), C23H25NO9
  54. Crystal structure of catena-poly[bis(4-(4-carboxyphenoxy)benzoato-κ1O)-μ2-(1,4-bis(1-imidazolyl)benzene-κ2N:N′)cobalt(II)], C40H28N4O10Co
  55. Crystal structure of 1H-imidazol-3-ium poly[aqua-(μ4-glutarato-κ6O,O′:O′:O′′,O′′′:O′′′)-(nitrato-κ2O,O′)strontium(II)], C8H13N3O8Sr
  56. Crystal structure of (R)-6-(benzo[b]thiophen-5-yl)-2-methyl-2,6-dihydrobenzo [5,6] silino[4,3,2-cd]indole, C23H17NSSi
  57. Crystal structure of catena-poly[bis(μ2-thiocyanato-κ2N:S)-(2-(5-methyl-1H-pyrazol-3-yl)pyridine-κ2N,N′)cadmium(II)]–dioxane (1/1), C15H17CdN5O2S2
  58. Crystal structure of poly[aqua-(μ2-1,4-bis(2′-carboxylatophenoxy)benzene-κ2O:O′)-(μ2-4,4′-bipyridione-κ2N:N′)cadmium(II)] monhydrate, C30H22CdN2O7⋅H2O
  59. Crystal structure of catena-poly[tetraaqua-(μ2-4,4′-bipyridine-k2N:N′)-bis(μ2-4′-methyl-[1,1′-biphenyl]-3,5-dicarboxylato-k4O,O′:O″,O′″)dicadmium(II)] dihydrate, C20H20NO7Cd
  60. Crystal structure of 1‐tert‐butyl‐3‐(2,6‐diisopropyl‐4‐phenoxyphenyl)‐2-methylisothiourea, C24H34N2OS
  61. Crystal structure of catena-poly[triaqua-(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2N:N′)-(4,4′-(1H-1,2,4-triazole-3,5-diyl)dibenzoato-κ1O)cobalt(II)] — N,N′-dimethylformamide (1/1), C28H34N8O8Co
  62. Crystal structure of tetraaqua-bis(1,4-di(1H-imidazol-1-yl)benzene-κ1N)manganese(II) 2,3-dihydroxyterephthalate, C32H32MnN8O10
Heruntergeladen am 9.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2021-0024/html
Button zum nach oben scrollen