organic compounds
4-(4-Methoxyphenethyl)-3-methyl-1H-1,2,4-triazol-5(4H)-one
aSamsun Vocational School, Ondokuz Mayıs University, TR-55139 Samsun, Turkey, bDepartment of Physics, Ondokuz Mayıs University, TR-55139 Samsun, Turkey, and cDepartment of Chemistry, Karadeniz Technical University, TR-61080 Trabzon, Turkey
*Correspondence e-mail: yavuzk@omu.edu.tr
The dihedral angle between the two rings in the title compound, C12H15N3O2, is 49.03 (1)°. The is stabilized by intermolecular N—H⋯O and C—H⋯O hydrogen bonds and π–π stacking interactions between the triazole rings with a centroid–centroid distance of 3.394 Å.
Related literature
For related literature on triazole compounds, see: Tanak et al. (2010); Ünver et al. (2008); Ünver, Düğdü et al. (2009); Ünver, Sancak et al. (2009). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2002); cell X-AREA; data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536810029685/bt5301sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810029685/bt5301Isup2.hkl
Ethyl 2-[1-ethoxy-2-(phenyl)ethylidene]hydrazine carboxylate (10 mmol) together with 2-(4 -methoxyphenyl)ethylamin (10 mmol) were heated without solvent in a sealed tube for 2 h at 423- 433°K. Then, the mixture was cooled to r.t. and a solid cure formed. The crude product was recrystallized using ethyl acetate/petroleum ether (1:1) to afford the desired compound. Yield: 185 mg (82%). Mp: 416°K
The H atom bonded to N was refined isotropically. Other H atoms were refined using a riding model, with C—H distances ranging from 0.93–0.97 Å and U(H) set to 1.2Ueq(C) or 1.5Ueq(Cmethyl).
1,2,4-Triazoles are an important class of heterocycles, and have been the subject of great interest due to their pharmacological properties (Ünver et al., 2008; Ünver, Düǧdü et al., 2009; Ünver, Sancak et al., 2009). 1,2,4-Triazole and 1,2,4- triazol-3-one are reported to exhibit a broad spectrum of biological activities such as antifungal, antimicrobial, hypoglycemic, antihypertensive, antidepressant, plant growth regulator anticoagulant, analgesic, antiparasitic, antiviral, anti-inflammatory, antitumor and anti-HIV properties (Tanak et al., 2010).
In the title compound, triazol ring is oriented with respect to the methoxyphenethyl ring at dihedral angles of 49.03 (1)°, that shows, whole molecule is not planar. Triazol ring system is almost planar with the maximum deviation of -0.005 (1)Å for atom C11. The double bond distance in the triazol group is good agreement with our previous report,5-benzyl-4-(3,4-dimethoxyphenethyl)-2H-1,2,4-triazol-3(4H)-one (Tanak et al., 2010).
Structurally, the title compound contains intermolecular N—H···O and C—H···O type hydrogen bonds, namely N3—H3···O2 (symmetry code:-x,3 - y,-z) which generates eight-membered ring, producing a R22(8) motif (Bernstein et al., 1995) and C8—H8B···O2 (symmetry code:-x,y - 1/2,-z + 1/2) which generates twelve-membered ring, producing a R22(12) motif (Bernstein et al., 1995) where atom O2 accepts hyrogen bonds from different donors. There is also π-π stacking interaction between the parallel triazol systems. The closest perpendicular distance is 3.394Å between the ring centroids at (x,y,z) and that at (-x,2 - y,-z). The details of the hydrogen bond is shown in Table 1.
For related literature on triazole compounds, see: Tanak et al. (2010); Ünver et al. (2008); Ünver, Düǧdü et al. (2009); Ünver, Sancak et al. (2009). For hydrogen-bond motifs, see: Bernstein et al. (1995);
Data collection: X-AREA (Stoe & Cie, 2002); cell
X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. A view of (I), with the atom-numbering scheme and 50% probability displacement ellipsoids. | |
Fig. 2. A partial packing view of (I). |
C12H15N3O2 | F(000) = 496 |
Mr = 233.27 | Dx = 1.291 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 5937 reflections |
a = 14.7736 (9) Å | θ = 1.5–28.7° |
b = 5.6986 (2) Å | µ = 0.09 mm−1 |
c = 15.2478 (9) Å | T = 293 K |
β = 110.726 (5)° | PRISM., colourless |
V = 1200.62 (11) Å3 | 0.80 × 0.40 × 0.13 mm |
Z = 4 |
Stoe IPDS 2 diffractometer | 3000 independent reflections |
Radiation source: fine-focus sealed tube | 1699 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
Detector resolution: 6.67 pixels mm-1 | θmax = 28.4°, θmin = 1.5° |
rotation method scans | h = −19→19 |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | k = −7→6 |
Tmin = 0.955, Tmax = 0.987 | l = −20→20 |
8004 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.039 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.107 | w = 1/[σ2(Fo2) + (0.0589P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.90 | (Δ/σ)max < 0.001 |
3000 reflections | Δρmax = 0.10 e Å−3 |
160 parameters | Δρmin = −0.10 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.017 (3) |
C12H15N3O2 | V = 1200.62 (11) Å3 |
Mr = 233.27 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.7736 (9) Å | µ = 0.09 mm−1 |
b = 5.6986 (2) Å | T = 293 K |
c = 15.2478 (9) Å | 0.80 × 0.40 × 0.13 mm |
β = 110.726 (5)° |
Stoe IPDS 2 diffractometer | 3000 independent reflections |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | 1699 reflections with I > 2σ(I) |
Tmin = 0.955, Tmax = 0.987 | Rint = 0.038 |
8004 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.107 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.90 | Δρmax = 0.10 e Å−3 |
3000 reflections | Δρmin = −0.10 e Å−3 |
160 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
O2 | 0.00721 (8) | 1.3809 (2) | 0.11587 (7) | 0.0781 (3) | |
C12 | 0.22054 (12) | 0.7523 (3) | 0.10928 (12) | 0.0800 (5) | |
H12A | 0.2410 | 0.7090 | 0.0583 | 0.120* | |
H12B | 0.1862 | 0.6238 | 0.1237 | 0.120* | |
H12C | 0.2762 | 0.7895 | 0.1634 | 0.120* | |
H3 | 0.0546 (12) | 1.377 (3) | −0.0366 (12) | 0.083 (5)* | |
O1 | 0.56139 (8) | 0.9311 (2) | 0.37786 (7) | 0.0809 (3) | |
N1 | 0.10666 (8) | 1.0519 (2) | 0.13533 (7) | 0.0607 (3) | |
N2 | 0.14153 (9) | 1.0787 (2) | 0.00638 (8) | 0.0685 (3) | |
N3 | 0.07981 (9) | 1.2572 (3) | 0.01078 (8) | 0.0676 (3) | |
C10 | 0.15659 (10) | 0.9585 (3) | 0.08233 (10) | 0.0631 (3) | |
C3 | 0.26905 (10) | 1.0401 (3) | 0.32804 (8) | 0.0626 (4) | |
C6 | 0.46536 (10) | 0.9552 (3) | 0.36347 (9) | 0.0614 (4) | |
C4 | 0.32447 (11) | 1.1936 (3) | 0.29816 (9) | 0.0680 (4) | |
H4 | 0.2958 | 1.3284 | 0.2658 | 0.082* | |
C5 | 0.42110 (12) | 1.1528 (3) | 0.31485 (9) | 0.0681 (4) | |
H5 | 0.4565 | 1.2586 | 0.2933 | 0.082* | |
C2 | 0.31463 (11) | 0.8424 (3) | 0.37550 (10) | 0.0689 (4) | |
H2 | 0.2789 | 0.7351 | 0.3959 | 0.083* | |
C11 | 0.05789 (9) | 1.2457 (3) | 0.08940 (9) | 0.0626 (4) | |
C1 | 0.41146 (11) | 0.7983 (3) | 0.39378 (10) | 0.0669 (4) | |
H1 | 0.4402 | 0.6637 | 0.4263 | 0.080* | |
C9 | 0.09688 (11) | 0.9628 (3) | 0.22112 (10) | 0.0720 (4) | |
H9A | 0.1107 | 0.7959 | 0.2259 | 0.086* | |
H9B | 0.0305 | 0.9835 | 0.2174 | 0.086* | |
C8 | 0.16332 (12) | 1.0831 (3) | 0.30847 (10) | 0.0790 (4) | |
H8A | 0.1513 | 1.2507 | 0.3023 | 0.095* | |
H8B | 0.1476 | 1.0292 | 0.3617 | 0.095* | |
C7 | 0.61047 (13) | 0.7352 (4) | 0.43098 (13) | 0.0942 (5) | |
H7A | 0.6771 | 0.7382 | 0.4359 | 0.141* | |
H7B | 0.5807 | 0.5930 | 0.4004 | 0.141* | |
H7C | 0.6068 | 0.7417 | 0.4925 | 0.141* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O2 | 0.0736 (7) | 0.0959 (8) | 0.0722 (6) | 0.0141 (6) | 0.0348 (5) | 0.0035 (5) |
C12 | 0.0804 (11) | 0.0778 (10) | 0.0872 (10) | −0.0004 (9) | 0.0364 (9) | −0.0069 (9) |
O1 | 0.0652 (7) | 0.1013 (8) | 0.0781 (6) | 0.0007 (6) | 0.0277 (5) | −0.0057 (6) |
N1 | 0.0515 (6) | 0.0738 (7) | 0.0575 (6) | −0.0071 (6) | 0.0203 (5) | −0.0038 (6) |
N2 | 0.0627 (7) | 0.0826 (9) | 0.0634 (7) | −0.0042 (6) | 0.0262 (6) | −0.0073 (6) |
N3 | 0.0612 (7) | 0.0832 (9) | 0.0598 (6) | 0.0005 (6) | 0.0234 (5) | 0.0000 (6) |
C10 | 0.0552 (7) | 0.0703 (9) | 0.0651 (8) | −0.0129 (7) | 0.0229 (6) | −0.0105 (7) |
C3 | 0.0690 (9) | 0.0723 (9) | 0.0469 (6) | 0.0027 (7) | 0.0210 (6) | −0.0041 (6) |
C6 | 0.0626 (8) | 0.0706 (9) | 0.0509 (6) | −0.0029 (7) | 0.0202 (6) | −0.0092 (7) |
C4 | 0.0789 (10) | 0.0640 (9) | 0.0562 (7) | 0.0023 (8) | 0.0179 (7) | 0.0030 (6) |
C5 | 0.0757 (10) | 0.0693 (9) | 0.0589 (7) | −0.0114 (8) | 0.0232 (7) | 0.0026 (7) |
C2 | 0.0744 (10) | 0.0740 (9) | 0.0622 (8) | −0.0060 (8) | 0.0290 (7) | 0.0044 (7) |
C11 | 0.0503 (7) | 0.0789 (10) | 0.0575 (7) | −0.0076 (7) | 0.0177 (6) | −0.0055 (7) |
C1 | 0.0740 (9) | 0.0626 (9) | 0.0637 (8) | 0.0061 (7) | 0.0241 (7) | 0.0086 (7) |
C9 | 0.0621 (8) | 0.0899 (10) | 0.0692 (8) | −0.0047 (8) | 0.0297 (7) | 0.0048 (8) |
C8 | 0.0740 (10) | 0.1048 (12) | 0.0621 (8) | 0.0107 (9) | 0.0288 (7) | −0.0021 (8) |
C7 | 0.0691 (10) | 0.1120 (14) | 0.0903 (11) | 0.0166 (10) | 0.0146 (9) | −0.0142 (11) |
O2—C11 | 1.2373 (16) | C6—C5 | 1.379 (2) |
C12—C10 | 1.472 (2) | C6—C1 | 1.381 (2) |
C12—H12A | 0.9600 | C4—C5 | 1.378 (2) |
C12—H12B | 0.9600 | C4—H4 | 0.9300 |
C12—H12C | 0.9600 | C5—H5 | 0.9300 |
O1—C6 | 1.3636 (17) | C2—C1 | 1.380 (2) |
O1—C7 | 1.419 (2) | C2—H2 | 0.9300 |
N1—C11 | 1.3686 (19) | C1—H1 | 0.9300 |
N1—C10 | 1.3790 (17) | C9—C8 | 1.511 (2) |
N1—C9 | 1.4571 (16) | C9—H9A | 0.9700 |
N2—C10 | 1.2951 (18) | C9—H9B | 0.9700 |
N2—N3 | 1.3833 (17) | C8—H8A | 0.9700 |
N3—C11 | 1.3494 (17) | C8—H8B | 0.9700 |
N3—H3 | 0.969 (17) | C7—H7A | 0.9600 |
C3—C2 | 1.379 (2) | C7—H7B | 0.9600 |
C3—C4 | 1.381 (2) | C7—H7C | 0.9600 |
C3—C8 | 1.503 (2) | ||
C10—C12—H12A | 109.5 | C6—C5—H5 | 120.0 |
C10—C12—H12B | 109.5 | C3—C2—C1 | 122.24 (13) |
H12A—C12—H12B | 109.5 | C3—C2—H2 | 118.9 |
C10—C12—H12C | 109.5 | C1—C2—H2 | 118.9 |
H12A—C12—H12C | 109.5 | O2—C11—N3 | 128.53 (14) |
H12B—C12—H12C | 109.5 | O2—C11—N1 | 127.27 (12) |
C6—O1—C7 | 117.61 (13) | N3—C11—N1 | 104.19 (12) |
C11—N1—C10 | 107.78 (11) | C2—C1—C6 | 119.57 (14) |
C11—N1—C9 | 122.61 (11) | C2—C1—H1 | 120.2 |
C10—N1—C9 | 129.44 (13) | C6—C1—H1 | 120.2 |
C10—N2—N3 | 104.65 (11) | N1—C9—C8 | 113.18 (12) |
C11—N3—N2 | 112.16 (13) | N1—C9—H9A | 108.9 |
C11—N3—H3 | 123.1 (10) | C8—C9—H9A | 108.9 |
N2—N3—H3 | 124.7 (10) | N1—C9—H9B | 108.9 |
N2—C10—N1 | 111.21 (13) | C8—C9—H9B | 108.9 |
N2—C10—C12 | 124.18 (13) | H9A—C9—H9B | 107.8 |
N1—C10—C12 | 124.59 (13) | C3—C8—C9 | 113.98 (12) |
C2—C3—C4 | 117.02 (14) | C3—C8—H8A | 108.8 |
C2—C3—C8 | 121.17 (14) | C9—C8—H8A | 108.8 |
C4—C3—C8 | 121.80 (14) | C3—C8—H8B | 108.8 |
O1—C6—C5 | 115.91 (13) | C9—C8—H8B | 108.8 |
O1—C6—C1 | 124.82 (14) | H8A—C8—H8B | 107.7 |
C5—C6—C1 | 119.26 (14) | O1—C7—H7A | 109.5 |
C5—C4—C3 | 121.91 (14) | O1—C7—H7B | 109.5 |
C5—C4—H4 | 119.0 | H7A—C7—H7B | 109.5 |
C3—C4—H4 | 119.0 | O1—C7—H7C | 109.5 |
C4—C5—C6 | 119.99 (14) | H7A—C7—H7C | 109.5 |
C4—C5—H5 | 120.0 | H7B—C7—H7C | 109.5 |
C10—N2—N3—C11 | 0.27 (15) | C8—C3—C2—C1 | 179.58 (13) |
N3—N2—C10—N1 | 0.27 (15) | N2—N3—C11—O2 | 177.88 (14) |
N3—N2—C10—C12 | −178.45 (13) | N2—N3—C11—N1 | −0.69 (15) |
C11—N1—C10—N2 | −0.71 (15) | C10—N1—C11—O2 | −177.77 (14) |
C9—N1—C10—N2 | 174.62 (12) | C9—N1—C11—O2 | 6.5 (2) |
C11—N1—C10—C12 | 178.01 (13) | C10—N1—C11—N3 | 0.82 (14) |
C9—N1—C10—C12 | −6.7 (2) | C9—N1—C11—N3 | −174.90 (12) |
C7—O1—C6—C5 | 177.44 (12) | C3—C2—C1—C6 | −0.4 (2) |
C7—O1—C6—C1 | −2.57 (19) | O1—C6—C1—C2 | 179.58 (12) |
C2—C3—C4—C5 | −0.1 (2) | C5—C6—C1—C2 | −0.4 (2) |
C8—C3—C4—C5 | −179.05 (13) | C11—N1—C9—C8 | −85.03 (16) |
C3—C4—C5—C6 | −0.7 (2) | C10—N1—C9—C8 | 100.24 (17) |
O1—C6—C5—C4 | −179.08 (13) | C2—C3—C8—C9 | −84.57 (17) |
C1—C6—C5—C4 | 0.9 (2) | C4—C3—C8—C9 | 94.32 (18) |
C4—C3—C2—C1 | 0.6 (2) | N1—C9—C8—C3 | −65.28 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···O2i | 0.969 (17) | 1.847 (18) | 2.8068 (18) | 170.2 (14) |
C8—H8B···O2ii | 0.97 | 2.57 | 3.3260 (18) | 135 |
Symmetry codes: (i) −x, −y+3, −z; (ii) −x, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C12H15N3O2 |
Mr | 233.27 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 14.7736 (9), 5.6986 (2), 15.2478 (9) |
β (°) | 110.726 (5) |
V (Å3) | 1200.62 (11) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.80 × 0.40 × 0.13 |
Data collection | |
Diffractometer | Stoe IPDS 2 |
Absorption correction | Integration (X-RED32; Stoe & Cie, 2002) |
Tmin, Tmax | 0.955, 0.987 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8004, 3000, 1699 |
Rint | 0.038 |
(sin θ/λ)max (Å−1) | 0.669 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.107, 0.90 |
No. of reflections | 3000 |
No. of parameters | 160 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.10, −0.10 |
Computer programs: X-AREA (Stoe & Cie, 2002), X-RED32 (Stoe & Cie, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···O2i | 0.969 (17) | 1.847 (18) | 2.8068 (18) | 170.2 (14) |
C8—H8B···O2ii | 0.97 | 2.57 | 3.3260 (18) | 134.6 |
Symmetry codes: (i) −x, −y+3, −z; (ii) −x, y−1/2, −z+1/2. |
Acknowledgements
The authors acknowledge the Faculty of Arts and Sciences, Ondokuz Mayıs University, Turkey, for the use of the Stoe IPDS 2 diffractometer
References
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1,2,4-Triazoles are an important class of heterocycles, and have been the subject of great interest due to their pharmacological properties (Ünver et al., 2008; Ünver, Düǧdü et al., 2009; Ünver, Sancak et al., 2009). 1,2,4-Triazole and 1,2,4- triazol-3-one are reported to exhibit a broad spectrum of biological activities such as antifungal, antimicrobial, hypoglycemic, antihypertensive, antidepressant, plant growth regulator anticoagulant, analgesic, antiparasitic, antiviral, anti-inflammatory, antitumor and anti-HIV properties (Tanak et al., 2010).
In the title compound, triazol ring is oriented with respect to the methoxyphenethyl ring at dihedral angles of 49.03 (1)°, that shows, whole molecule is not planar. Triazol ring system is almost planar with the maximum deviation of -0.005 (1)Å for atom C11. The double bond distance in the triazol group is good agreement with our previous report,5-benzyl-4-(3,4-dimethoxyphenethyl)-2H-1,2,4-triazol-3(4H)-one (Tanak et al., 2010).
Structurally, the title compound contains intermolecular N—H···O and C—H···O type hydrogen bonds, namely N3—H3···O2 (symmetry code:-x,3 - y,-z) which generates eight-membered ring, producing a R22(8) motif (Bernstein et al., 1995) and C8—H8B···O2 (symmetry code:-x,y - 1/2,-z + 1/2) which generates twelve-membered ring, producing a R22(12) motif (Bernstein et al., 1995) where atom O2 accepts hyrogen bonds from different donors. There is also π-π stacking interaction between the parallel triazol systems. The closest perpendicular distance is 3.394Å between the ring centroids at (x,y,z) and that at (-x,2 - y,-z). The details of the hydrogen bond is shown in Table 1.