Startseite The crystal structure of 5-bromo-2-(1-methyl-1H-tetrazol-5-yl)pyridine, C7H6BrN5
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The crystal structure of 5-bromo-2-(1-methyl-1H-tetrazol-5-yl)pyridine, C7H6BrN5

  • Hang-Jun Tang , Yang-Rong Xu , Xiao-Hui Wang , Feng-Lan Zhao und Qing-Guo Meng EMAIL logo
Veröffentlicht/Copyright: 14. September 2019

Abstract

C7H6BrN5, orthorhombic, Acam (no. 64; unconventional setting of Cmce formerly known as Cmca), a = 12.3735(8) Å, b = 20.8690(11) Å, c = 6.8385(6) Å, V = 1765.9(2) Å3, Z = 8, Rgt(F) = 0.0471, wRref(F2) = 0.1152, T = 293(2) K.

CCDC no.: 1935947

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:Colourless block
Size:0.28 × 0.25 × 0.23 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:4.61 mm−1
Diffractometer, scan mode:Xcalibur, ω
θmax, completeness:29.5°, >99%
N(hkl)measured, N(hkl)unique, Rint:3550, 1181, 0.062
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 850
N(param)refined:80
Programs:CysAlisPRO [1], SHELX [2], [3]
Table 2:

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

AtomxyzUiso*/Ueq
Br10.16881(4)0.05998(2)0.50000.0488(2)
C10.3491(4)−0.0243(2)0.50000.0376(11)
H10.38860.01360.50000.045*
C20.2377(3)−0.0206(2)0.50000.0346(10)
C30.1778(3)−0.0761(3)0.50000.0413(12)
H30.1027−0.07480.50000.050*
C40.2321(3)−0.1337(2)0.50000.0391(11)
H40.1941−0.17220.50000.047*
C50.3436(3)−0.1336(2)0.50000.0323(10)
C60.3998(4)−0.1953(2)0.50000.0358(10)
N10.4026(3)−0.07970(19)0.50000.0369(9)
N20.5064(3)−0.20657(17)0.50000.0387(9)
N30.5218(3)−0.2707(2)0.50000.0519(11)
N40.4272(4)−0.2963(2)0.50000.0591(13)
N50.3493(3)−0.2510(2)0.50000.0513(12)
C70.6007(4)−0.1639(3)0.50000.0562(15)
H7Aa0.6643−0.18810.53140.084*
H7Ba0.5905−0.13080.59570.084*
H7Ca0.6088−0.14490.37300.084*
  1. aOccupancy: 0.5.

Source of material

The title compound was synthesized according to a reported procedure [4]. 5-Bromo-2-(2H-tetrazol-5-yl)pyridine was reacted with sodium azide and ammonium chloride in DMF at 120 °C for 1 h. The addition of iodomethane to the solution of 5-bromo-2-(2H-tetrazol-5-yl)pyridine in dry DMF produced a mixture of 5-bromo-2-(1-methyl-1H-tetrazol-5-yl)pyridine and 5-bromo-2-(2-methyl-2H-tetrazol-5-yl)pyridine at room temperature. The title compound was separated by silica-gel column chromatography using a gradient of ethyl acetate/ petroleum ether (10–20%). Crystals were obtained by slow evaporation of mixed solution of petroleum ether and ethyl acetate (5:1, v/v) at room temperature after a week.

Experimental details

Hydrogen atoms were situated in idealized positions with the carrier atom-H distances = 0.93 Å for aryl, 0.97 Å for methyl. The Uiso values of the hydrogen atoms of methyl groups were set to 1.5Ueq and the Uiso values of all other hydrogen atoms were set to 1.2Ueq(C).

Comment

Tetrazole, an important five-membered heterocycle, is well employed in medicinal chemistry due to its N-donor characteristics. Tetrazole derivatives have been reported to possess a broad spectrum of biological activities, such as antibacterial [5], [6], anticancer [7], [8], anti-Alzheimers’s disease [9], [10], antitubercular [11], [12], antimalarial [13], [14], and antifungal [15], [16] properties. Moreover, many tetrazole-based drugs such as Tedizolid, Cilostazol, Cefamandole and Irbesartan have already been used in clinical practice for the treatment of various diseases. Demonstrating the therapeutic potential of tetrazole derivatives. Here we report the crystal structure of the title compound to expect a better understanding of this structure.

The title compound crystallizes with one half of a molecule in the asymmetric unit (cf. the figure). The bond lengths of Br1—C2 is 1.885(3) Å. The distances between N1 and N2 is 2.942(7) Å. Interestingly, not only pyridine ring and tetrazole ring are coplanar but also methyl group and the N atom of pyridine are on the same side. Geometric parameters are in expected ranges [17].

Award Identifier / Grant number: 81473104

Funding statement: This work was supported by the National Natural Science Foundation of China (no. 81473104) and Shandong Graduate Education Innovation Program (SDYY16132).

References

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Received: 2019-06-27
Accepted: 2019-09-03
Published Online: 2019-09-14
Published in Print: 2019-12-18

©2019 Hang-Jun Tang 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

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  17. The crystal structure of 13-ethoxycarbonyl-9-methyl-4-chlor-11-thioxo-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2,4,6-triene, C14H15ClN2O3S
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  24. Crystal structure of (E)-3-chloro-2-(((4-nitrophenyl)imino)methyl)phenol, C13H9ClN2O3
  25. Crystal structure of aqua-bis(5-bromo-6-methyl-picolinato-κ2N,O)zinc(II) dihydrate, C14H16Br2N2O7Zn
  26. Crystal structure of biaqua(2,2′-bipyridine-4,4′-dicarboxylato-κ2N,N′)(pyridine-2,6-dicarboxylato-κ3O,N,O′)nickel(II) hydrate, C19H15N3NiO10
  27. Synthesis and crystal structure of bis(2-(((4-(1-(ethoxyimino)ethyl)phenyl)imino)methyl)-5-fluorophenolato-κ2N,O)zinc(II) - methanol (1/1), C33H32F2N4O4Zn
  28. Crystal structure of tetraaqua-bis(μ2-5-aminoisophthalato-κ3N:O,O′)-bis(4,4′-dipyridylsulfide-κ1N)dizinc(II), C36H34N6O12S2Ni2
  29. Crystal structure of (1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)palladium(II) tetracyanonickelate(II), C14H24N8NiPd
  30. The crystal structure of 3-benzyl-1-((8-(benzyloxy)quinolin-2-yl)methyl)-1H-imidazol-3-ium hexafluorophosphate, C27H24N3OF6P
  31. Crystal structure of 1-(4-chloro-2-hydroxy-5-iodophenyl)ethan-1-one, C8H6ClIO2
  32. Crystal structure of hexaaquamagnesium(II) bis((E)-4-((4-(dimethylamino)phenyl)diazenyl)benzenesulfonate), C28H40MgN6O12S2
  33. Crystal structure of the coordination polymer catena-poly[(1,2-di(pyridin-4-yl)ethane-κN)-(μ2-2-nitroisophthalato-κ2O:O′)zinc(II)], C20H17N3O7Zn
  34. Crystal structure of catena-{[tri-aqua-di-sodium bis(2-{[n-butyl(methyl)carbamothioyl]sulfanyl}acetate)]}n, [C16H34N2Na2O7S4]n
  35. The crystal structure of diaqua-bis(μ2-3-((3-acetyl-5-carboxyphenyl)oxidophosphoryl)-5-carboxybenzoato-κ2O:O′)bis(5,5′-dimethyl-2,2′-bipyridine-k2N,N′)zinc(II), C56H46N4O22P2Zn2
  36. Crystal structure of N′,2-bis((E)-2-chloro-6-hydroxybenzylidene)hydrazine-1-carbothiohydrazide, C15H12Cl2N4O2S
  37. Crystal structure of 2-[(1E)-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]iminiumyl}methyl]-5-(dodecyloxy)benzen-1-olate, C23H39NO5
  38. Crystal structure of 12-(2-hydroxybenzoyl)benzo[f]pyrido[1,2-a]indole-6,11-dione, C23H13NO4
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  42. Crystal structure of benzyl-chlorido-(4-chloro-N-[(2-oxidophenyl)methylidene]benzenecarbohydrazonato)-methanol-tin(IV), C22H20Cl2N2O3Sn
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  60. Crystal structure of 4-benzyl-1-oxo-N-phenethyl-1H-[1,4]oxazino [4,3-b]indazole-3-carboxamide, C26H21N3O3
  61. Crystal structure of bis{(N-[(5-chloro-2-oxidophenyl)methylidene]-2-hydroxybenzenecarbohydrazonato)-dioxo-molybdenum(VI)}(μ2-4,4′-bipyridine), C38H26Cl2Mo2N6O10
  62. Crystal structure of dichlorido-octamethyl-bis(μ3-oxido)-bis(μ2-2-(phenylamino)ethanolato-κ2O:O)tetratin(IV), C24H44Cl2N2O4Sn4
  63. The crystal structure of 1-(2-(2-(imidazo[1,5-a]pyridine-4-ium)ethoxy)ethyl)-imidazo[1,5-a]pyridine-4-ium bis(hexafluorophosphate) — acetonitrile (1/1), C18H20ON4F12P2
  64. Crystal structure of cyclo[tetra(μ2-cyanido)-tetracyanido-bis(1,4,7,10-tetraazacyclododecane-κ4N,N′,N′′,N′′′)dinickel(II)dipalladium(II)] hexahydrate, C24H52N16Ni2O6Pd2
  65. Crystal structure of (dimethyl sulfoxide)-dioxido-[2-hydroxy-N′-(4-oxo-4-phenylbutan-2-ylidene)benzohydrazidato κ3N,O,O′]molybdenum(VI), C19H20MoN2O6S
  66. Crystal structure of bis(acetylacetonato-κ2O,O′)-(ethanolamine-κ2N,O)copper(II), C14H25CuNO5
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  69. The crystal structure of bis(4-nitroimidazole-1-1yl)methane, C7H6N6O4
  70. Crystal structure of di(naphthalen-2-yl)sulfane, C20H14S
  71. Crystal structure of 3-acetyl-6-bromo-4-hydroxy-2H-chromen-2-one, C11H7BrO4
  72. Crystal structure of N′2,N′6-bis((E)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C21H25N9O4
  73. The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
  74. The crystal structure of 1,2-bis((4-methoxyphenyl)ethynyl)benzene, C24H18O2
  75. Crystal structure of a low-temperature (100 K) polymorph of catena-poly[(μ2-4,4′-bipyridine-κ2N,N′)-bis(O,O′-diethyldithiophosphato-κ1S)zinc(II)], C18H28N2O4P2S4Zn
  76. The pseudosymmetric low temperature polymorph of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-diethyldithiophosphato-κS)-cadmium(II)], {C18H28CdN2O4P2S4}n
  77. Crystal structure of 3-iodophthalic acid, C8H5IO4
  78. The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
  79. The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
  80. Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
  81. A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
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