Home Crystal structure of 1-(adamantan-1-yl)-3-(4-bromophenyl)thiourea, C17H21BrN2S
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Crystal structure of 1-(adamantan-1-yl)-3-(4-bromophenyl)thiourea, C17H21BrN2S

  • Fatmah A. M. Al-Omary , Lamees S. Al-Rasheed , Hazem A. Ghabbour and Ali A. El-Emam EMAIL logo
Published/Copyright: June 15, 2016

Abstract

C17H21BrN2S, orthorhombic, Pbca (No. 61), a = 17.0675(7) Å, b = 8.3422(3) Å, c = 22.5970(8) Å, V = 3217.4(2) Å3, Z = 8, Rgt(F) = 0.0329, wRref(F2) = 0.0724, T = 100 K.

CCDC no.:: 1449483

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

Table 1

Data collection and handling.

Crystal:Colourless blocks Size 0.51 × 0.27 × 0.25 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ :26.8 cm−1
Diffractometer, scan mode:Bruker APEX-II , φ and ω
2θmax, completeness:65.2°, >99 %
N(hkl)measured, N(hkl)unique, Rint:94777, 6159, 0.074
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 4365
N(param)refined:198
Programs:SHELX [23], Bruker programs [24]
Table 2

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

AtomxyzUiso*/Ueq
Br10.85483(2)1.08286(2)0.49890(2)0.02160(5)
S10.64189(2)0.83748(4)0.24363(2)0.01154(7)
N10.68609(7)0.53228(15)0.22343(5)0.0125(2)
N20.75715(7)0.66164(14)0.29236(5)0.0112(2)
C10.63266(8)0.48893(16)0.17477(6)0.0104(2)
C20.64562(9)0.30820(17)0.16505(6)0.0138(3)
H2A0.70140.28820.15540.017*
H2B0.63300.24940.20190.017*
C30.59395(9)0.24645(17)0.11465(6)0.0140(3)
H3A0.60310.12910.10900.017*
C40.50768(9)0.27545(18)0.13038(7)0.0160(3)
H4A0.47370.23660.09790.019*
H4B0.49400.21570.16680.019*
C50.49436(9)0.45499(18)0.14001(6)0.0143(3)
H5A0.43810.47400.15010.017*
C70.65316(8)0.57777(17)0.11726(6)0.0128(3)
H7A0.70890.55940.10720.015*
H7B0.64520.69440.12260.015*
C60.54610(8)0.51525(17)0.19092(6)0.0123(3)
H6A0.53330.45620.22770.015*
H6B0.53630.63070.19790.015*
C80.60047(9)0.51604(17)0.06686(6)0.0137(3)
H8A0.61330.57500.02960.016*
C90.61444(9)0.33604(18)0.05753(6)0.0154(3)
H9A0.58130.29660.02460.018*
H9B0.67000.31680.04710.018*
C100.51467(9)0.54595(19)0.08309(6)0.0156(3)
H10A0.48030.50930.05050.019*
H10B0.50580.66220.08900.019*
C110.69582(8)0.66934(16)0.25352(6)0.0104(2)
C120.77708(8)0.76914(16)0.33833(6)0.0106(2)
C130.85588(9)0.80530(17)0.34672(6)0.0137(3)
H13A0.89390.76540.31980.016*
C140.87940(9)0.89946(17)0.39434(7)0.0160(3)
H14A0.93330.92320.40040.019*
C150.82321(10)0.95804(17)0.43279(6)0.0146(3)
C160.74427(9)0.92559(17)0.42454(6)0.0151(3)
H16A0.70630.96870.45080.018*
C170.72139(9)0.82936(17)0.37747(6)0.0127(3)
H17A0.66760.80450.37200.015*
H1N10.7201(11)0.465(2)0.2302(8)0.018(5)*
H1N20.7867(11)0.576(2)0.2892(8)0.018(5)*

Source of material

To a solution of 1-adamantylamine (1.51 g, 0.01 mol) in ethanol (15 mL), 4-bromophenyl isothiocyanate (2.14 g, 0.01 mol) was added and the mixture was heated under reflux for three hours. On cooling, the precipitated crude product was filtered, dried and crystallized from ethanol to yield 3.36 g (92%) of the title compound (C17H21BrN2S) as transparent block crystals. M.P.: 459–461 K. Single crystals suitable for X-ray diffraction were obtained by slow evaporation of a solution of the title compound in chloroform at room temperature. 1H NMR (CDCl3, 500.13 MHz): δ 1.58–1.70 (m, 6H, Adamantane-H), 2.14 (s, 3H, Adamantane-H), 2.21 (s, 6H, Adamantane-H), 5.92 (s, 1H, NH), 7.11 (d, 2H, Ar-H, J = 8.0 Hz), 7.53 (d, 2H, Ar-H, J = 0.0 Hz), 7.65 (s, 1H, NH). 13C NMR (CDCl3, 125.76 MHz): δ 29.55, 36.20, 41.58, 54.90 (Adamantane-C), 120.14, 126.50, 133.12, 135.88 (Ar-C), 179.58 (C = S). ESI-MS, m/z: 363.4 (M-H, 47%), 365.4 (M+2-H, 52%).

Experimental details

Carbon-bound H atoms were placed in calculated positions and were included in the refinement in the riding model approximation, with Uiso(H) set to 1.2Ueq(C). The nitrogen-bound H atom was located on a difference Fourier map and refined freely.

Discussion

The adamantanyl moiety represents the major pharmacophore of various drugs as amantadine [1], [2], [3], rimantadine [4], [5] and tromantadine [6], which are currently described as efficient antiviral therapies. Moreover, several adamantane-based drugs are currently employed as important medications against malaria infections [7], central nervous disorders [8], [9], [10], hyperglycaemia [11] and drug-resistant TB strain infections [12]. In addition, thiourea derivatives were reported to display marked antitumor [13], anti-HIV [14], antimalarial [15] and antimicrobial [16] activities. As a part of our current research interest in the pharmacological [17], [18], [19] and structural [20], [21], [22] properties of adamantane derivatives, we report herein the synthesis and crystal structure of the title compound as bioactive agent and as precursor for adamantane-based chemotherapeutic agents.

The asymmetric unit of the title structure contains one independent molecule. All bond lengths and angles of this molecule are in the expected ranges. The molecules packed in the crystal structure via two intermolecular strong classical hydrogen bonds, N1—H1N1⋯S1i and N2—H1N2⋯S1i. The H⋯A distances are 2.602(18) and 2.551(17) Å, respectively and the angles are 160.1(16) and 160.5(16)°, respectively. Symmetry codes: (i) -x+3/2, y-1/2, z.

Acknowledgements:

The authors would like to extend their sincere appreciation to the Deanship of Scientific Research at King Saud University for funding this work through the Research Group Project No. RG-1435–067.

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Received: 2016-1-31
Accepted: 2016-6-4
Published Online: 2016-6-15
Published in Print: 2016-12-1

©2016 Fatmah A. M. Al-Omary et al., published by De Gruyter.

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

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  46. Crystal structure of dimethanolo-bis[μ-(2-(2-(5-(pyridin-2-yl)-1H-1,2,4-triazol-3-yl)phenoxy)benzoato)-κ5O,O′,N:N′,N′′]dicopper(II) — methanol (1/2), C46H48Cu2N8O12
  47. Crystal structure of poly-[tetraaqua-bis(μ4-2,5-dibenzoyl-1,4-benzenedicarboxylato-κ4O1:O2:O3:O4)-μ2-2,5-dibenzoyl-1,4-benzenedicarboxylato-k4O5,O6: O5′,O6′-didysprosium(III)] tetrahydrate C33H26O13Dy
  48. Crystal structure of hexaaqua-bis(3-(3-pyridin-4-yl-[1,2,4]oxadiazol-5-yl) propionato-κ3O,O′:O′)-bis(3-(3-pyridin-4-yl-[1,2,4]oxadiazol-5-yl)propionato-κO)-bis(3-(3-pyridin-4-yl-[1,2,4]oxadiazol-5-yl)propionato-κ2O,O′)dineodymium(III) octahydrate, C60H76N18O32Nd2
  49. Crystal structure of poly-[triaqua-(μ3-3,4,5,6-tetrafluoro-1,2-phthalato-κ4O:O′:O′′,O′′′) (2,3,4,5-tetrafluoro-benzoato-κ2O,O′) praseodymium(III)], C15H7F8O9Pr
  50. The crystal structure of dichlorido (1,3-dimesityl-1H-3λ4-imidazol-2-yl)(isoquinoline-κN)palladium(IV) – ethylacetate (1/1), C34H39Cl2N3O2Pd
  51. Crystal structure of dichlorido(1,3-bis(2,6-dimethyl-phenyl)-1H-3λ4-imidazol-2-yl)(isoquinolinyl)palladium(IV), C28H27Cl2N3Pd
  52. Crystal structure of 5-(4-(1H-tetrazol-5-yl)phenyl)-1H-imidazol-3-ium 7-carboxy-1,3-dioxo-1H,3H-benzo[de]isochromene-6-carboxylate monohydrate 4,5-anhydride, C24H16N6O8
  53. Crystal structure of poly-[diaqua-bis(μ2-2-((1H-1,2,4-triazol-5-yl)thio)acetato-κ2N:O) cadmium(II)], C8H8CdN6O6S2
  54. Crystal Structure of (E)-3-(4-methoxyphenyl)-1-(2,3,4-tris(benzyloxy)-6-hydroxyphenyl)prop-2-en-1-one, C37H32O6
  55. Structure and photochromism of 1-(1,2-dimethylindol-3-yl)-2-[2-methyl-5-(3-fluorophenyl)-3-thienyl]-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C26H18F7NS
  56. Crystal structure of two-dimensional coordination polymer poly-[μ2-azido-aqua-(μ2-pyrazine-2-carboxylato-κ3O,N:N′)nickel(II)], C5H5N5O3Ni
  57. Crystal structure of 2-amino-5-oxo-4-(3,5-bis(trifluoromethyl)phenyl)-4H,5H-pyrano [3,2-c]chromene-3-carbonitrile, C21H10F6N2O3
  58. Crystal structure of 4-(5-((2-methylbenzyl)thio)-4-phenyl-4H-1,2,4-triazol-3-yl)pyridine, C21H18N4S
  59. Crystal structure of 5-(2-chloro-5-nitrophenyl)-3-(4-chlorophenyl)-N-ethyl-4,5-dihydro-1H-pyrazole-1-carbothioamide, C18H16Cl2N4O2S
  60. Crystal structure of 4-(benzofuran-2-yl)-2-(3-(4-fluorophenyl)-3,3a,4,5-tetrahydro-2H-benzo[g]indazol-2-yl)thiazole, C28H20FN3OS
  61. Crystal structure of bis(dicyanamido-κ1N)-tetrakis[1-benzyl-1H-1,2,4-triazole-κ1N]cobalt(II), CoC40H36N18
  62. Crystal structure of 1-benzyl-6-hydroxy-1,4,5,6-tetrahydropyridine-3-carbonitrile, C13H14N2O
  63. Crystal structure of 2-amino-7-methyl-4-(3,4-difluoro-phenyl)-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile, C16H10F2N2O3
  64. The crystal structure of 4-[(benzo[1,3]dioxol-5-ylmethylene)-amino]-1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one, C19H17N3O3
  65. Crystal structure of 1,4-dihydro-1-phenylchromeno[4,3-c]pyrazole, C16H12N2O
  66. Crystal structure of N-(5-((3,5-dimethylisoxazol-4-yl)sulfonyl)quinolin-8-yl)benzamide, C21H17N3O4S
  67. Crystal structure of 3-amino-9-methoxy-1-phenyl-1H-benzo[f]chromene-2-carbonitrile, C21H16N2O2
  68. Crystal structure of 1,2-bis(4-methoxyphenyl)-2-((3-(trifluoromethyl)phenyl)amino)ethan-1-one, C23H20F3NO3
  69. Crystal structure of 2-amino-4-(2,4-dinitrophenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile – ethanol (1:1), C21H16N4O8
  70. Crystal structure of catena-poly-[(1-cyclopropyl-6-fluoro-4-oxo-7-(piperazin-1-ium-1-yl)-1,4-dihydroquinoline-3-carboxylate-κ2O,O′)-(μ2-4,4′-sulfonyldibenzoato-κ4O,O′:O′′,O′′′)zinc(II)] hemihydrate, C31H27ZnFN3O9.5S
  71. Crystal structure of 2-(2-bromophenyl)-5-methyl-1,3-dioxane-5-carboxylic acid, C12H13BrO4
  72. Crystal structure of 2-(2-bromophenyl)-5-ethyl-1,3-dioxane-5-carboxylic acid, C13H15BrO4
  73. Crystal structure of 4-(4-((3-bromophenyl)amino)-6-(tert-butyl)-3-(2-hydroxypropan-2-yl)cinnolin-8-yl)-2-methylbut-3-yn-2-ol, C26H30BrN3O2
  74. Crystal structure poly-(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazolyl-κ2NN1:N2N)-(μ3-2,2′-(1,2-phenylene)diacetato-κ5-O1,O2:O2:O3,O4)cadmium(II), C22H19CdN5O4
  75. Crystal structure of bis(1-ethyl-6-fluoro-4-oxido-7-(piperazin-1-ium-1-yl)-1,8-naphthyridin-1-ium-3-carboxylate-κ2O,O′)copper(II) benzene-1, 4-dicarboxylate dihydrate, C38H42F2CuN8O12
  76. Redetermination of the crystal structure of potassium lithium molybdate monohydrate, KLiMoO4·H2O
  77. Crystal structure of [tris(2-benzimidazolylmethyl)amine-κ3N](isonicotinate-κO) cobalt(II) [tris(2-benzimidazolylmethyl)amine-κ3N](isonicotinic acid-κO) cobalt(II) triperchlorate, C60H51N16O16Cl3Co2
  78. The crystal structure of tris(μ2-1,3-bis(4,4,4-trifluoro-3-oxido-1-(oxo)but-2-en-1-yl)phenyl-κ4O,O′:O′′,O′′′)-bis(1,2-dimethoxyethane-κ2O,O′)dicerium(III), C50H38F18O16Ce2
  79. Crystal structure of 8-isopropyl-8-aza-bicyclo[3.2.1]octan-3-ol, C10H19NO
  80. Crystal structure of 2,4-dibenzoyl-N,N-dimethylbenzenamine, C22H19NO2
  81. The crystal structure of 2-(4-methoxyphenyl)-6,8-diphenyl-4-(phenylamino)quinazoline — acetonitrile (1/1), C35H28N4O
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