Startseite Crystal structure of 3-(adamantan-1-yl)-1-(4-bromophenyl)urea, C17H21BrN2O
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Crystal structure of 3-(adamantan-1-yl)-1-(4-bromophenyl)urea, C17H21BrN2O

  • Fatmah A. M. Al-Omary , Lamees S. Al-Rasheed , Hazem A. Ghabbour und Ali A. El-Emam EMAIL logo
Veröffentlicht/Copyright: 8. Oktober 2016

Abstract

C17H21BrN2O, orthorhombic, Pna21 (no. 33), a = 9.2558(12) Å, b = 13.0186(17) Å, c = 13.4684(18) Å, V = 1622.9(4) Å3, Z = 4, Rgt(F) = 0.0471, wRref(F2) = 0.1059, T = 100 K.

CCDC no.:: 1473606

The asymmetric unit of the title 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 0.49 × 0.22 × 0.18 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:25.3 cm−1
Diffractometer, scan mode:Bruker SMART, φ and ω
2θmax, completeness:55°, >99%
N(hkl)measured, N(hkl)unique3525, 3525
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 1934
N(param)refined:199
Programs:SHELX [25], Bruker programs [26]
Table 2:

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

AtomxyzUiso*/Ueq
Br10.36803(8)0.67620(5)0.73438(7)0.1262(3)
O10.4429(3)0.2152(2)0.4914(2)0.0583(8)
N10.6674(4)0.1564(2)0.4538(3)0.0513(11)
N20.6388(4)0.3150(2)0.5210(3)0.0516(10)
C110.5742(3)0.2260(3)0.4884(3)0.0408(9)
C170.4583(4)0.3833(3)0.6352(3)0.0509(12)
H17A0.42260.31620.64800.061*
C120.5709(4)0.3975(3)0.5688(3)0.0398(10)
C10.5598(4)−0.0106(3)0.4993(3)0.0532(11)
H1A0.46750.02230.51850.064*
H1B0.6223−0.01430.55880.064*
C60.6339(3)0.0532(3)0.4190(3)0.0390(9)
C160.3977(5)0.4672(4)0.6831(4)0.0609(12)
H16A0.31920.45740.72760.073*
C130.6198(4)0.4966(3)0.5520(3)0.0509(11)
H13A0.69530.50790.50550.061*
C150.4501(6)0.5634(4)0.6667(4)0.0629(13)
C50.7776(4)0.0024(3)0.3932(4)0.0593(13)
H5A0.82730.04280.34110.071*
H5B0.84040.00080.45270.071*
C140.5608(5)0.5787(3)0.6016(4)0.0622(13)
H14A0.59700.64600.59060.075*
C20.5306(5)−0.1202(3)0.4595(4)0.0662(14)
H2A0.4799−0.16130.51170.079*
C70.4375(5)−0.1155(4)0.3679(5)0.0766(15)
H7A0.3436−0.08300.38400.092*
H7B0.4185−0.18580.34310.092*
C80.5140(6)−0.0536(4)0.2890(4)0.0759(15)
H8A0.4528−0.05120.22790.091*
C40.7517(5)−0.1064(4)0.3563(5)0.0779(17)
H4A0.8465−0.13880.33930.094*
C90.5387(5)0.0552(4)0.3265(4)0.0630(13)
H9A0.44470.08750.34250.076*
H9B0.58580.09660.27410.076*
C30.6766(6)−0.1704(4)0.4360(5)0.0858(17)
H3A0.7370−0.17310.49670.103*
H3B0.6618−0.24140.41200.103*
C100.6576(6)−0.1027(4)0.2641(4)0.097(2)
H10A0.7066−0.06250.21160.116*
H10B0.6417−0.17320.23890.116*
H1N10.744(4)0.171(2)0.467(2)0.017(9)*
H1N20.723(4)0.320(2)0.519(2)0.019(9)*

Source of material

4-Bromophenyl isocyanate (1.98 g, 0.01 mol) was added to a solution of 1-adamantylamine (1.51 g, 0.01 mol), in ethanol (10 mL), and the mixture was heated under reflux for 3 hours. On cooling, the precipitated crude product was filtered, dried and crystallized from ethanol to yield 3.11 g (89%) of the title compound (C17H21BrN2O) as transparent crystals. m.p.: 545–546 K. Single crystals were obtained by slow evaporation of a solution of the title compound in EtOH/CHCl3 (1:1) at room temperature. 1H NMR (DMSO-d6, 700.17 MHz): δ 1.62–1.64 (m, 6H, Adamantane-H), 2.03–2.05 (m, 6H, Adamantane-H), 2.08–2.10 (m, 3H, Adamantane-H), 5.90 (s, 1H, NH), 7.31–7.36 (m, 4H, Ar—H), 8.39 (s, 1H, NH). 13C NMR (DMSO-d6, 176.08 MHz): δ 29.35, 36.48, 42.06, 50.37 (Adamantane-C), 112.37, 119.68, 131.78, 140.51 (Ar—C), 154.17 (C = O). ESI-MS, m/z: 349.2 [M + 2H, 100%], 347.2 [M—H, 97%].

Experimental details

Carbon-bound hydrogen 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 N-bound hydrogen atoms were located on a difference Fourier map and refined freely.

Discussion

1,3-Disubstituted urea derivatives were early recognized as important leads possessing various biological activities. Various 1-(1-adamantyl)-3-substituted urea derivatives were identified as potent inhibitors of Mycobacterium tuberculosis epoxide hydrolase B , [1], [2], [3], [4]. In addition, several 1,3-disubstituted urea analogues were reported to exhibit marked anticancer , [5], [6], [7], [8], antifungal [9], antibacterial [10, 11], antiviral [12] and herbicidal [13] activities. On the other hand, adamantane derivatives were early proved to possess marked antiviral [14, 15], antimalarial [16], hypoglycemic [17], antitubercular [18] and central nervous [19, 20] avtivities. As a part of ongoing research project on chemotherapeutic [21, 22] and structural [23, 24] properties of adamantane derivatives, we report herein the crystal structure of the title adamantyl urea derivative.

The asymmetric unit of the title structure contains one molecule. The molecules are connected via two strong classical intermolecular hydrogen bonds, N1—H1N1⋯O1i and N2—H1N2⋯O1i. The H⋯A distances are 2.39(3) and 2.12(4) Å, respectively and the angles are 156(3) and 161(3)°, respectively. Symmetry codes: (i) x + 1/2, −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: 2016-4-13
Accepted: 2016-9-25
Published Online: 2016-10-8
Published in Print: 2017-1-1

©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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  49. Crystal structure of trimethylammonium 4-((4-carboxyphenyl)sulfonyl)benzoate, C17H19NO6S
  50. Crystal structure of syn-2,4-di-o-tolylpentane-2,4-diol, C19H24O2
  51. Crystal structure of 2-[3,5-bis(trifluoromethyl)benzylsulfanyl]-5-(5-bromothiophen-2-yl)-1,3,4-oxadiazole, C15H7BrF6N2OS2
  52. Crystal structure of (E)-3-((naphthalen-1-ylimino)methyl)-4-nitrophenol, C17H12N2O3
  53. Crystal structure of 2-dichloromethyl-2-p-nitrophenyl-1,3-dioxolane, C10H9Cl2NO4
  54. Crystal structure of (1,4,8,11-tetraazacyclotetradecane)palladium(II) tetracyanopalladate(II), C14H24N8Pd2
  55. Crystal structure of 2-(4-oxo-2-thioxothiazolidin-3-yl)acetic acid monohydrate, C5H7NO4S2
  56. Crystal structure of a P4-bridged (η5-pentamethyl-cyclopentadienyl)(η5-adamantylcyclopentadienyl) titanium(III)complex, C50H66P4Ti2
  57. Crystal structure of cis-bis(2,2′-bipyrimidine-κ2N,N′)bis(thiocyanato-κN)nickel(II), C18H12N10NiS2
  58. Crystal structure of cis-bis(2,2′-bipyridine-κ2N,N′)dibromidomanganese(II), C20H16Br2MnN4
  59. Crystal structure of cis-bis(2,2′-bipyridine-κ2N,N′)bis(thiocyanato-κN)nickel(II), C22H16N6NiS2
  60. Crystal structure of trans-dibromido(1,4,8,11-tetraazacyclotetradecane)nickel(II), C10H24Br2N4Ni
  61. Crystal structure of cis-tetrabromidobis(pyridine-κN)platinum(IV), C10H10Br4N2Pt
  62. Crystal structure of (E)-5-((4-chlorophenyl)diazenyl)-2-(5-(4-fluorophenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-methylthiazole, C23H17ClFN5S2
  63. The crystal structure of 3-((1R,2S)-1-methylpyrrolidin-1-ium-2-yl)pyridin-1-ium tetrachloridocobaltate(II) monohydrate, C10H18Cl4CoN2O
Heruntergeladen am 5.10.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2016-0118/html
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