organic compounds
N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-4-methylbenzenesulfonamide
aDepartamento de Química-Universidade Federal de Mato Grosso–UFMT, 78060-900 Cuiabá, MT, Brazil, and bClemens Schöpf-Institut für Organische Chemie und Biochemie, Technische Universität Darmstadt, Petersenstrasse 22, D-64287 Darmstadt, Germany
*Correspondence e-mail: foro@tu-darmstadt.de
In the title compound, C18H19N3O3S, the phenyl ring and the pyrazole ring are twisted with respect to each other by an angle of 49.11 (7)°. The C—N—S—C torsion angle is −122.5 (2)°. The methyl group bonded to the N atom of the pyrazole ring has a large deviation from the mean ring plane of 0.603 (3) Å. One intermolecular N—H⋯O and two non-classical intermolecular C—H⋯O hydrogen bonds are observed in the crystal structure.
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis CCD (Oxford Diffraction, 2007); cell CrysAlis RED (Oxford Diffraction, 2007); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXS97.
Supporting information
https://doi.org/10.1107/S1600536807061594/bt2634sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807061594/bt2634Isup2.hkl
The ligand was obtained according to the procedure previously described (Xue et al., 2000). Single crystals of (I) suitable for X-ray data collection appeared after a few days from methanol-dichloromethane (1:1).
The H atoms of the methyl groups were positioned with idealized geometry using a riding model with C—H = 0.96 Å. The other H atoms were located in difference map, and their positional parameters were refined freely with N—H = 0.87 (2) %A and C—H = 0.92 (2)–0.97 (2) Å. All H atoms were refined with isotropic displacement parameters (set to 1.2 times of the Ueq of the parent atom).
Pyrazolone derivatives, as dypirone, known as a non-steroidal anti-inflammatory drug show analgesic property and have been widely used in Europa and Latin America (Alves & Duarte, 2002). The crystal elucidation of the title compound is a strategy to find new 4-aminoantypirine derivatives with biological significance.
The pyrazole moiety forms a C8—N1—S1—C1 torsion angle with the toluene ring of -122.5 (2)° and a dihedral angle between the mean planes of 49.11 (7)° with the phenyl ring showing the nonplanarity of the system. The methyl group with C18 bounded to the nitrogen atom N2 of the pyrazole ring has a high deviation from the mean plane of -0.603 (3) Å. The NH group has an intermolecular hydrogen bond to the oxygen atom O3 [N—H···O = 1.97 (2) Å]. Both sulfonamide oxygen atoms O1 and O2 are involved in non-classical intermolecular hydrogen bonds with C2 and C12 [C—H···O = 2.54 (2) Å, C—H···O = 2.43 (2) Å, respectively] (Table 1).
For related literature, see: Xue et al. (2000); Alves & Duarte (2002).
Data collection: CrysAlis CCD (Oxford Diffraction, 2007); cell
CrysAlis RED (Oxford Diffraction, 2007); data reduction: CrysAlis RED (Oxford Diffraction, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXS97 (Sheldrick, 1997).Fig. 1. Molecular structure of (I), showing the atom labeling and displacement ellipsoids drawn at the 50% probability level. |
C18H19N3O3S | Z = 2 |
Mr = 357.42 | F(000) = 376 |
Triclinic, P1 | Dx = 1.379 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.202 (1) Å | Cell parameters from 4280 reflections |
b = 9.892 (1) Å | θ = 2.0–25.6° |
c = 10.067 (1) Å | µ = 0.21 mm−1 |
α = 103.688 (9)° | T = 299 K |
β = 90.360 (9)° | Rod, colorless |
γ = 104.300 (9)° | 0.50 × 0.20 × 0.16 mm |
V = 860.71 (15) Å3 |
Oxford Diffraction Xcalibur diffractometer with Sapphire CCD detector | 3519 independent reflections |
Radiation source: fine-focus sealed tube | 2600 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.028 |
Rotation method data acquisition using ω and phi scans. | θmax = 26.4°, θmin = 2.3° |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2007) | h = −11→11 |
Tmin = 0.902, Tmax = 0.967 | k = −12→12 |
10096 measured reflections | l = −12→12 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.037 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.109 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0545P)2 + 0.208P] where P = (Fo2 + 2Fc2)/3 |
3519 reflections | (Δ/σ)max = 0.041 |
259 parameters | Δρmax = 0.23 e Å−3 |
0 restraints | Δρmin = −0.35 e Å−3 |
C18H19N3O3S | γ = 104.300 (9)° |
Mr = 357.42 | V = 860.71 (15) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.202 (1) Å | Mo Kα radiation |
b = 9.892 (1) Å | µ = 0.21 mm−1 |
c = 10.067 (1) Å | T = 299 K |
α = 103.688 (9)° | 0.50 × 0.20 × 0.16 mm |
β = 90.360 (9)° |
Oxford Diffraction Xcalibur diffractometer with Sapphire CCD detector | 3519 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2007) | 2600 reflections with I > 2σ(I) |
Tmin = 0.902, Tmax = 0.967 | Rint = 0.028 |
10096 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | 0 restraints |
wR(F2) = 0.109 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | Δρmax = 0.23 e Å−3 |
3519 reflections | Δρmin = −0.35 e Å−3 |
259 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 | ||
C1 | 0.15033 (19) | 0.83574 (19) | 0.62802 (18) | 0.0331 (4) | |
C2 | 0.0708 (2) | 0.8120 (2) | 0.50358 (19) | 0.0381 (4) | |
H2 | 0.015 (2) | 0.875 (2) | 0.491 (2) | 0.046* | |
C3 | 0.0712 (2) | 0.6926 (2) | 0.4009 (2) | 0.0416 (5) | |
H3 | 0.016 (2) | 0.677 (2) | 0.319 (2) | 0.050* | |
C4 | 0.1508 (2) | 0.5953 (2) | 0.4180 (2) | 0.0429 (5) | |
C5 | 0.2301 (3) | 0.6212 (2) | 0.5424 (2) | 0.0478 (5) | |
H5 | 0.280 (3) | 0.554 (3) | 0.562 (2) | 0.057* | |
C6 | 0.2306 (2) | 0.7402 (2) | 0.6482 (2) | 0.0429 (5) | |
H6 | 0.285 (2) | 0.756 (2) | 0.731 (2) | 0.051* | |
C7 | 0.1510 (3) | 0.4657 (2) | 0.3046 (2) | 0.0620 (6) | |
H7A | 0.2306 | 0.4904 | 0.2466 | 0.074* | |
H7B | 0.0563 | 0.4340 | 0.2517 | 0.074* | |
H7C | 0.1663 | 0.3898 | 0.3430 | 0.074* | |
C8 | −0.12615 (19) | 1.02665 (19) | 0.81942 (17) | 0.0330 (4) | |
C9 | −0.2574 (2) | 0.9894 (2) | 0.74125 (17) | 0.0347 (4) | |
C10 | −0.11502 (19) | 1.16193 (19) | 0.91546 (17) | 0.0327 (4) | |
C11 | −0.3116 (2) | 1.2945 (2) | 0.98271 (17) | 0.0343 (4) | |
C12 | −0.4544 (2) | 1.2434 (2) | 1.0227 (2) | 0.0416 (5) | |
H12 | −0.510 (2) | 1.144 (2) | 0.988 (2) | 0.050* | |
C13 | −0.5179 (3) | 1.3360 (3) | 1.1144 (2) | 0.0525 (6) | |
H13 | −0.617 (3) | 1.300 (3) | 1.140 (2) | 0.063* | |
C14 | −0.4392 (3) | 1.4765 (3) | 1.1678 (2) | 0.0583 (6) | |
H14 | −0.482 (3) | 1.542 (3) | 1.228 (2) | 0.070* | |
C15 | −0.2969 (3) | 1.5266 (3) | 1.1285 (2) | 0.0559 (6) | |
H15 | −0.247 (3) | 1.622 (3) | 1.159 (2) | 0.067* | |
C16 | −0.2324 (2) | 1.4360 (2) | 1.0346 (2) | 0.0446 (5) | |
H16 | −0.136 (3) | 1.466 (2) | 1.005 (2) | 0.054* | |
C17 | −0.3153 (2) | 0.8652 (2) | 0.6214 (2) | 0.0472 (5) | |
H17A | −0.2589 | 0.7950 | 0.6183 | 0.057* | |
H17B | −0.3051 | 0.8980 | 0.5386 | 0.057* | |
H17C | −0.4194 | 0.8226 | 0.6299 | 0.057* | |
C18 | −0.4369 (2) | 1.1268 (2) | 0.6960 (2) | 0.0441 (5) | |
H18A | −0.5081 | 1.0412 | 0.6456 | 0.053* | |
H18B | −0.3786 | 1.1736 | 0.6332 | 0.053* | |
H18C | −0.4896 | 1.1908 | 0.7498 | 0.053* | |
N1 | −0.02275 (17) | 0.94195 (17) | 0.81689 (15) | 0.0349 (4) | |
H1N | −0.024 (2) | 0.889 (2) | 0.875 (2) | 0.042* | |
N2 | −0.33766 (17) | 1.08873 (17) | 0.78608 (15) | 0.0374 (4) | |
N3 | −0.24404 (16) | 1.20148 (16) | 0.88633 (15) | 0.0361 (4) | |
O1 | 0.15031 (16) | 1.10496 (14) | 0.70246 (14) | 0.0467 (4) | |
O2 | 0.25442 (14) | 0.99605 (15) | 0.86636 (13) | 0.0478 (4) | |
O3 | −0.01857 (14) | 1.23296 (14) | 1.00850 (13) | 0.0403 (3) | |
S1 | 0.14404 (5) | 0.98554 (5) | 0.76144 (4) | 0.03506 (15) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0302 (9) | 0.0337 (9) | 0.0365 (9) | 0.0078 (7) | 0.0056 (7) | 0.0112 (8) |
C2 | 0.0388 (10) | 0.0400 (11) | 0.0389 (10) | 0.0138 (9) | 0.0014 (8) | 0.0126 (8) |
C3 | 0.0436 (11) | 0.0444 (11) | 0.0353 (10) | 0.0083 (9) | 0.0031 (9) | 0.0100 (9) |
C4 | 0.0466 (11) | 0.0370 (11) | 0.0441 (11) | 0.0076 (9) | 0.0160 (9) | 0.0110 (9) |
C5 | 0.0524 (13) | 0.0464 (12) | 0.0541 (12) | 0.0253 (10) | 0.0102 (10) | 0.0171 (10) |
C6 | 0.0415 (11) | 0.0518 (12) | 0.0402 (10) | 0.0182 (10) | 0.0015 (9) | 0.0139 (9) |
C7 | 0.0764 (17) | 0.0471 (13) | 0.0580 (14) | 0.0161 (12) | 0.0197 (12) | 0.0034 (11) |
C8 | 0.0306 (9) | 0.0390 (10) | 0.0305 (9) | 0.0090 (8) | 0.0037 (7) | 0.0105 (8) |
C9 | 0.0341 (9) | 0.0394 (10) | 0.0303 (9) | 0.0078 (8) | 0.0037 (7) | 0.0094 (8) |
C10 | 0.0293 (9) | 0.0380 (10) | 0.0321 (9) | 0.0077 (8) | 0.0026 (7) | 0.0118 (8) |
C11 | 0.0326 (9) | 0.0393 (10) | 0.0333 (9) | 0.0133 (8) | 0.0000 (7) | 0.0093 (8) |
C12 | 0.0395 (11) | 0.0431 (11) | 0.0424 (10) | 0.0106 (9) | 0.0030 (8) | 0.0107 (9) |
C13 | 0.0460 (13) | 0.0643 (15) | 0.0523 (13) | 0.0217 (11) | 0.0136 (10) | 0.0162 (11) |
C14 | 0.0621 (15) | 0.0639 (15) | 0.0524 (13) | 0.0344 (13) | 0.0064 (11) | 0.0016 (11) |
C15 | 0.0616 (15) | 0.0409 (12) | 0.0602 (14) | 0.0169 (11) | −0.0104 (12) | −0.0006 (11) |
C16 | 0.0380 (11) | 0.0426 (11) | 0.0515 (12) | 0.0084 (9) | −0.0009 (9) | 0.0098 (9) |
C17 | 0.0458 (12) | 0.0487 (12) | 0.0410 (11) | 0.0091 (10) | −0.0031 (9) | 0.0026 (9) |
C18 | 0.0345 (10) | 0.0566 (13) | 0.0415 (10) | 0.0104 (9) | −0.0033 (8) | 0.0142 (9) |
N1 | 0.0347 (8) | 0.0386 (9) | 0.0365 (8) | 0.0131 (7) | 0.0057 (7) | 0.0147 (7) |
N2 | 0.0317 (8) | 0.0445 (9) | 0.0344 (8) | 0.0105 (7) | −0.0045 (6) | 0.0057 (7) |
N3 | 0.0307 (8) | 0.0409 (9) | 0.0345 (8) | 0.0099 (7) | −0.0013 (6) | 0.0043 (7) |
O1 | 0.0529 (9) | 0.0362 (7) | 0.0511 (8) | 0.0088 (6) | 0.0111 (7) | 0.0138 (6) |
O2 | 0.0348 (7) | 0.0570 (9) | 0.0443 (8) | 0.0050 (6) | −0.0057 (6) | 0.0059 (7) |
O3 | 0.0348 (7) | 0.0408 (7) | 0.0412 (7) | 0.0064 (6) | −0.0068 (6) | 0.0058 (6) |
S1 | 0.0318 (3) | 0.0350 (3) | 0.0358 (2) | 0.00564 (18) | 0.00188 (18) | 0.00684 (18) |
C1—C6 | 1.384 (3) | C11—C12 | 1.386 (3) |
C1—C2 | 1.387 (3) | C11—N3 | 1.429 (2) |
C1—S1 | 1.7620 (18) | C12—C13 | 1.380 (3) |
C2—C3 | 1.375 (3) | C12—H12 | 0.97 (2) |
C2—H2 | 0.92 (2) | C13—C14 | 1.375 (3) |
C3—C4 | 1.385 (3) | C13—H13 | 0.96 (2) |
C3—H3 | 0.93 (2) | C14—C15 | 1.377 (3) |
C4—C5 | 1.382 (3) | C14—H14 | 0.94 (2) |
C4—C7 | 1.502 (3) | C15—C16 | 1.384 (3) |
C5—C6 | 1.387 (3) | C15—H15 | 0.92 (3) |
C5—H5 | 0.95 (2) | C16—H16 | 0.94 (2) |
C6—H6 | 0.92 (2) | C17—H17A | 0.9600 |
C7—H7A | 0.9600 | C17—H17B | 0.9600 |
C7—H7B | 0.9600 | C17—H17C | 0.9600 |
C7—H7C | 0.9600 | C18—N2 | 1.456 (2) |
C8—C9 | 1.358 (2) | C18—H18A | 0.9600 |
C8—N1 | 1.411 (2) | C18—H18B | 0.9600 |
C8—C10 | 1.433 (2) | C18—H18C | 0.9600 |
C9—N2 | 1.367 (2) | N1—S1 | 1.6281 (16) |
C9—C17 | 1.488 (3) | N1—H1N | 0.87 (2) |
C10—O3 | 1.236 (2) | N2—N3 | 1.409 (2) |
C10—N3 | 1.389 (2) | O1—S1 | 1.4318 (14) |
C11—C16 | 1.381 (3) | O2—S1 | 1.4284 (14) |
C6—C1—C2 | 120.13 (18) | C14—C13—C12 | 120.4 (2) |
C6—C1—S1 | 120.34 (14) | C14—C13—H13 | 121.2 (14) |
C2—C1—S1 | 119.51 (14) | C12—C13—H13 | 118.3 (14) |
C3—C2—C1 | 119.68 (19) | C13—C14—C15 | 120.1 (2) |
C3—C2—H2 | 120.0 (13) | C13—C14—H14 | 121.8 (16) |
C1—C2—H2 | 120.3 (13) | C15—C14—H14 | 118.0 (16) |
C2—C3—C4 | 121.46 (19) | C14—C15—C16 | 120.3 (2) |
C2—C3—H3 | 118.7 (13) | C14—C15—H15 | 120.4 (16) |
C4—C3—H3 | 119.8 (13) | C16—C15—H15 | 119.2 (16) |
C5—C4—C3 | 118.02 (18) | C11—C16—C15 | 119.2 (2) |
C5—C4—C7 | 121.1 (2) | C11—C16—H16 | 117.9 (13) |
C3—C4—C7 | 120.87 (19) | C15—C16—H16 | 122.8 (14) |
C4—C5—C6 | 121.73 (19) | C9—C17—H17A | 109.5 |
C4—C5—H5 | 121.0 (14) | C9—C17—H17B | 109.5 |
C6—C5—H5 | 117.0 (14) | H17A—C17—H17B | 109.5 |
C1—C6—C5 | 118.98 (19) | C9—C17—H17C | 109.5 |
C1—C6—H6 | 120.6 (14) | H17A—C17—H17C | 109.5 |
C5—C6—H6 | 120.4 (14) | H17B—C17—H17C | 109.5 |
C4—C7—H7A | 109.5 | N2—C18—H18A | 109.5 |
C4—C7—H7B | 109.5 | N2—C18—H18B | 109.5 |
H7A—C7—H7B | 109.5 | H18A—C18—H18B | 109.5 |
C4—C7—H7C | 109.5 | N2—C18—H18C | 109.5 |
H7A—C7—H7C | 109.5 | H18A—C18—H18C | 109.5 |
H7B—C7—H7C | 109.5 | H18B—C18—H18C | 109.5 |
C9—C8—N1 | 126.38 (17) | C8—N1—S1 | 122.21 (13) |
C9—C8—C10 | 108.83 (16) | C8—N1—H1N | 121.7 (13) |
N1—C8—C10 | 124.56 (16) | S1—N1—H1N | 110.7 (13) |
C8—C9—N2 | 109.58 (16) | C9—N2—N3 | 106.85 (14) |
C8—C9—C17 | 129.48 (18) | C9—N2—C18 | 123.39 (15) |
N2—C9—C17 | 120.92 (17) | N3—N2—C18 | 117.59 (15) |
O3—C10—N3 | 124.10 (17) | C10—N3—N2 | 109.26 (14) |
O3—C10—C8 | 130.98 (17) | C10—N3—C11 | 124.48 (14) |
N3—C10—C8 | 104.90 (15) | N2—N3—C11 | 118.75 (14) |
C16—C11—C12 | 120.73 (18) | O2—S1—O1 | 119.94 (9) |
C16—C11—N3 | 118.91 (17) | O2—S1—N1 | 109.23 (8) |
C12—C11—N3 | 120.36 (17) | O1—S1—N1 | 107.43 (8) |
C13—C12—C11 | 119.2 (2) | O2—S1—C1 | 106.91 (9) |
C13—C12—H12 | 119.7 (13) | O1—S1—C1 | 107.94 (8) |
C11—C12—H12 | 121.1 (13) | N1—S1—C1 | 104.32 (8) |
C6—C1—C2—C3 | 0.5 (3) | C10—C8—N1—S1 | −73.9 (2) |
S1—C1—C2—C3 | −177.76 (14) | C8—C9—N2—N3 | 6.99 (19) |
C1—C2—C3—C4 | −0.7 (3) | C17—C9—N2—N3 | −171.68 (15) |
C2—C3—C4—C5 | 0.3 (3) | C8—C9—N2—C18 | 148.18 (17) |
C2—C3—C4—C7 | −179.63 (18) | C17—C9—N2—C18 | −30.5 (3) |
C3—C4—C5—C6 | 0.3 (3) | O3—C10—N3—N2 | −172.84 (16) |
C7—C4—C5—C6 | −179.82 (19) | C8—C10—N3—N2 | 5.62 (18) |
C2—C1—C6—C5 | 0.0 (3) | O3—C10—N3—C11 | −23.8 (3) |
S1—C1—C6—C5 | 178.27 (15) | C8—C10—N3—C11 | 154.70 (16) |
C4—C5—C6—C1 | −0.4 (3) | C9—N2—N3—C10 | −7.89 (19) |
N1—C8—C9—N2 | 171.06 (16) | C18—N2—N3—C10 | −151.70 (15) |
C10—C8—C9—N2 | −3.6 (2) | C9—N2—N3—C11 | −159.01 (15) |
N1—C8—C9—C17 | −10.4 (3) | C18—N2—N3—C11 | 57.2 (2) |
C10—C8—C9—C17 | 174.95 (17) | C16—C11—N3—C10 | 64.2 (2) |
C9—C8—C10—O3 | 176.98 (18) | C12—C11—N3—C10 | −116.1 (2) |
N1—C8—C10—O3 | 2.2 (3) | C16—C11—N3—N2 | −149.34 (17) |
C9—C8—C10—N3 | −1.34 (18) | C12—C11—N3—N2 | 30.4 (2) |
N1—C8—C10—N3 | −176.10 (15) | C8—N1—S1—O2 | 123.46 (15) |
C16—C11—C12—C13 | 0.6 (3) | C8—N1—S1—O1 | −8.10 (16) |
N3—C11—C12—C13 | −179.08 (17) | C8—N1—S1—C1 | −122.52 (15) |
C11—C12—C13—C14 | −1.3 (3) | C6—C1—S1—O2 | 11.34 (18) |
C12—C13—C14—C15 | 0.9 (4) | C2—C1—S1—O2 | −170.41 (14) |
C13—C14—C15—C16 | 0.3 (4) | C6—C1—S1—O1 | 141.64 (16) |
C12—C11—C16—C15 | 0.6 (3) | C2—C1—S1—O1 | −40.11 (17) |
N3—C11—C16—C15 | −179.73 (18) | C6—C1—S1—N1 | −104.31 (16) |
C14—C15—C16—C11 | −1.0 (3) | C2—C1—S1—N1 | 73.94 (16) |
C9—C8—N1—S1 | 112.28 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O3i | 0.87 (2) | 1.97 (2) | 2.826 (2) | 167.1 (18) |
C2—H2···O1ii | 0.92 (2) | 2.54 (2) | 3.270 (2) | 136.4 (16) |
C12—H12···O2iii | 0.97 (2) | 2.43 (2) | 3.245 (2) | 141.9 (17) |
Symmetry codes: (i) −x, −y+2, −z+2; (ii) −x, −y+2, −z+1; (iii) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C18H19N3O3S |
Mr | 357.42 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 299 |
a, b, c (Å) | 9.202 (1), 9.892 (1), 10.067 (1) |
α, β, γ (°) | 103.688 (9), 90.360 (9), 104.300 (9) |
V (Å3) | 860.71 (15) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.21 |
Crystal size (mm) | 0.50 × 0.20 × 0.16 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer with Sapphire CCD detector |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2007) |
Tmin, Tmax | 0.902, 0.967 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10096, 3519, 2600 |
Rint | 0.028 |
(sin θ/λ)max (Å−1) | 0.625 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.109, 1.07 |
No. of reflections | 3519 |
No. of parameters | 259 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.35 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2007), CrysAlis RED (Oxford Diffraction, 2007), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O3i | 0.87 (2) | 1.97 (2) | 2.826 (2) | 167.1 (18) |
C2—H2···O1ii | 0.92 (2) | 2.54 (2) | 3.270 (2) | 136.4 (16) |
C12—H12···O2iii | 0.97 (2) | 2.43 (2) | 3.245 (2) | 141.9 (17) |
Symmetry codes: (i) −x, −y+2, −z+2; (ii) −x, −y+2, −z+1; (iii) x−1, y, z. |
Acknowledgements
The authors thank Professor Dr. Hartmut Fuess, Technische Universität Darmstadt, for diffractometer time.
References
Alves, D. P. & Duarte, I. D. G. (2002). Eur. J. Pharmacol. 444, 47–52. Web of Science CrossRef PubMed CAS Google Scholar
Oxford Diffraction (2007). CrysAlis CCD and CrysAlis RED. Versions 1.171.32.5. Oxford Diffraction Ltd, Köln, Germany. Google Scholar
Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Göttingen, Germany. Google Scholar
Spek, A. L. (2003). J. Appl. Cryst. 36, 7–13. Web of Science CrossRef CAS IUCr Journals Google Scholar
Xue, G., Bradshaw, J. S., Dalley, N. K., Savage, P. B., Izatt, R. M., Prodi, L., Montalti, M. & Zaccheroni, N. (2000). Tetrahedron, 58, 4809–4815. Web of Science CSD CrossRef Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Pyrazolone derivatives, as dypirone, known as a non-steroidal anti-inflammatory drug show analgesic property and have been widely used in Europa and Latin America (Alves & Duarte, 2002). The crystal elucidation of the title compound is a strategy to find new 4-aminoantypirine derivatives with biological significance.
The pyrazole moiety forms a C8—N1—S1—C1 torsion angle with the toluene ring of -122.5 (2)° and a dihedral angle between the mean planes of 49.11 (7)° with the phenyl ring showing the nonplanarity of the system. The methyl group with C18 bounded to the nitrogen atom N2 of the pyrazole ring has a high deviation from the mean plane of -0.603 (3) Å. The NH group has an intermolecular hydrogen bond to the oxygen atom O3 [N—H···O = 1.97 (2) Å]. Both sulfonamide oxygen atoms O1 and O2 are involved in non-classical intermolecular hydrogen bonds with C2 and C12 [C—H···O = 2.54 (2) Å, C—H···O = 2.43 (2) Å, respectively] (Table 1).