organic compounds
5-Methyl-1-[(4-methylphenyl)sulfonyl]-1H-pyrazol-3-yl 4-methylbenzenesulfonate
aUniversity of Gujrat, Department of Chemistry, Hafiz Hayat Campus, Gujrat, Pakistan, and bUniversity of Sargodha, Department of Physics, Sargodha, Pakistan
*Correspondence e-mail: dmntahir_uos@yahoo.com
In the title compound, C18H18N2O5S2, the tolyl rings are oriented at a dihedral angle of 16.15 (11)° with respect to one another. The 5-methyl-1H-pyrazol-3-ol ring is roughly planar (r.m.s. deviation = 0.0231 Å) and subtends angles of 73.82 (8) and 89.85 (8)° with the tolyl rings. In the crystal, very weak π–π interactions between tolyl groups, with centroid–centroid distances of 4.1364 (19) and 4.0630 (16) Å, together with a C—H⋯π contact generate a three-dimensional network.
Experimental
Crystal data
|
Refinement
|
Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; 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) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
https://doi.org/10.1107/S1600536812027717/sj5243sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812027717/sj5243Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812027717/sj5243Isup3.cml
A solution of 3-methyl-1H-pyrazol-5-ol (0.1 g, 1 mmol) was prepared in anhydrous tetrahydrofuran (THF) and NaH (0.048 g, 2 mmol) was added to it at room temperature. A separately prepared solution of 4-methyl benzenesulfonyl chloride (0.19 g, 0.001 mol) in THF (10 ml) was added dropwise to the above mixture. The mixture was stirred for 2 h and solvent was evaporated to yield white prisms of (I).
M. p. 483 K.
The H-atoms were positioned geometrically (C–H = 0.93–0.96 Å) and were included in the
in the riding model approximation, with Uiso(H) = xUeq(C), where x = 1.5 for CH3 and x = 1.2 for other H-atoms.The title compound (I), (Fig. 1) has been synthesized as part of a study of enzyme inhibition and other biological activities of molecules incoorporating pyrazole moiety, an important component of many drugs. (I), was also prepared as a continuation of our work on sulfonyl derivatives, such as ethyl (3E)-3-[2-(4-bromophenylsulfonyl)hydrazin-1-ylidene]butanoate (Murtaza et al., 2012). The
of 1(R)-4-(3-hydroxy-5-methyl-pyrazol-1-yl)-octan-2-one (Gogoi et al. 2009) has also been published and contains a 5-methyl-1H-pyrazol-3-ol unit similar to the one observed here.In (I) , Fig. 1, the tolyl groups A (C1—C7) and B (C12—C18) are planar with r.m.s. deviations of 0.0137 and 0.0043 Å, respectively. The dihedral angle between the A/B planes is 16.15 (11)°. The central group, 5-methyl-1H-pyrazol-3-ol, C (C8—C11/N1/N2/O3) is also planar with an r.m.s. deviation of 0.0231 Å. The sulfonyl groups D (O1/S1/O2) and E (O4/S2/O5) are of course planar. The dihedral angles between A/C, A/D, A/E, B/C, B/D and B/E are 89.85 (8)°, 43.20 (9)°, 67.25 (13)°, 73.82 (8)°, 31.56 (9)° and 33.61 (12)°, respectively.
C18—H18b···π contacts form between dissimilar tolyl rings (Table 1). Weak π–π interactions are also found between like ring systems Cg2···Cg2i [i = 1/2 - x, 1/2 - y, 1 - z] and Cg3···Cg3ii [ii = - x, y, 1/2 - z] at distances of 4.1364 (19) and 4.0630 (16) %A respectively, where Cg2 and Cg3 are the centroids of the (C1—C6) and (C12—C17), benzene rings. These interactions play a role in stabilizing the structure, generating a three dimensional network.
For related structures, see: Gogoi et al. (2009); Murtaza et al. (2012).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); 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) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. View of the title compound with the atom numbering scheme. The thermal ellipsoids are drawn at the 50% probability level. H-atoms are shown as small spheres of arbitrary radii. |
C18H18N2O5S2 | F(000) = 1696 |
Mr = 406.46 | Dx = 1.456 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 2548 reflections |
a = 22.296 (2) Å | θ = 1.9–27.2° |
b = 8.0444 (7) Å | µ = 0.32 mm−1 |
c = 20.915 (2) Å | T = 296 K |
β = 98.521 (6)° | Prism, white |
V = 3709.7 (6) Å3 | 0.30 × 0.25 × 0.22 mm |
Z = 8 |
Bruker Kappa APEXII CCD diffractometer | 4124 independent reflections |
Radiation source: fine-focus sealed tube | 2548 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.055 |
Detector resolution: 7.80 pixels mm-1 | θmax = 27.2°, θmin = 1.9° |
ω scans | h = −28→26 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −10→10 |
Tmin = 0.910, Tmax = 0.933 | l = −26→26 |
15506 measured reflections |
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)] = 0.057 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.128 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0531P)2 + 0.6607P] where P = (Fo2 + 2Fc2)/3 |
4124 reflections | (Δ/σ)max = 0.001 |
247 parameters | Δρmax = 0.27 e Å−3 |
0 restraints | Δρmin = −0.35 e Å−3 |
C18H18N2O5S2 | V = 3709.7 (6) Å3 |
Mr = 406.46 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 22.296 (2) Å | µ = 0.32 mm−1 |
b = 8.0444 (7) Å | T = 296 K |
c = 20.915 (2) Å | 0.30 × 0.25 × 0.22 mm |
β = 98.521 (6)° |
Bruker Kappa APEXII CCD diffractometer | 4124 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 2548 reflections with I > 2σ(I) |
Tmin = 0.910, Tmax = 0.933 | Rint = 0.055 |
15506 measured reflections |
R[F2 > 2σ(F2)] = 0.057 | 0 restraints |
wR(F2) = 0.128 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.27 e Å−3 |
4124 reflections | Δρmin = −0.35 e Å−3 |
247 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
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 | ||
S1 | 0.22735 (4) | 0.04624 (9) | 0.37485 (3) | 0.0494 (3) | |
S2 | 0.06192 (3) | 0.04283 (8) | 0.11235 (3) | 0.0429 (2) | |
O1 | 0.29151 (9) | 0.0548 (3) | 0.38078 (10) | 0.0662 (8) | |
O2 | 0.19810 (11) | −0.1021 (2) | 0.38973 (10) | 0.0691 (9) | |
O3 | 0.08101 (8) | 0.1414 (2) | 0.17980 (9) | 0.0460 (7) | |
O4 | 0.11514 (9) | 0.0014 (2) | 0.08671 (10) | 0.0550 (7) | |
O5 | 0.01762 (9) | 0.1490 (2) | 0.07870 (10) | 0.0614 (8) | |
N1 | 0.20378 (10) | 0.0816 (3) | 0.29509 (10) | 0.0418 (8) | |
N2 | 0.14243 (10) | 0.0735 (3) | 0.27469 (11) | 0.0421 (8) | |
C1 | 0.19849 (13) | 0.2141 (3) | 0.41327 (12) | 0.0435 (9) | |
C2 | 0.22831 (14) | 0.3644 (4) | 0.41528 (14) | 0.0540 (11) | |
C3 | 0.20366 (17) | 0.4966 (4) | 0.44373 (16) | 0.0641 (13) | |
C4 | 0.15110 (16) | 0.4839 (4) | 0.46975 (14) | 0.0571 (11) | |
C5 | 0.12313 (15) | 0.3307 (4) | 0.46813 (14) | 0.0610 (11) | |
C6 | 0.14649 (14) | 0.1940 (4) | 0.44013 (13) | 0.0529 (11) | |
C7 | 0.12476 (17) | 0.6330 (4) | 0.49855 (16) | 0.0890 (16) | |
C8 | 0.23506 (12) | 0.1375 (3) | 0.24822 (14) | 0.0439 (9) | |
C9 | 0.30235 (13) | 0.1595 (5) | 0.25488 (17) | 0.0719 (14) | |
C10 | 0.19296 (12) | 0.1638 (3) | 0.19549 (14) | 0.0476 (10) | |
C11 | 0.13808 (12) | 0.1233 (3) | 0.21468 (13) | 0.0365 (9) | |
C12 | 0.02738 (11) | −0.1363 (3) | 0.13625 (12) | 0.0370 (8) | |
C13 | 0.05269 (12) | −0.2897 (3) | 0.12767 (13) | 0.0452 (9) | |
C14 | 0.02264 (14) | −0.4301 (3) | 0.14397 (13) | 0.0489 (10) | |
C15 | −0.03075 (13) | −0.4199 (3) | 0.16949 (13) | 0.0439 (9) | |
C16 | −0.05397 (13) | −0.2635 (4) | 0.17760 (15) | 0.0525 (11) | |
C17 | −0.02588 (12) | −0.1226 (3) | 0.16106 (14) | 0.0498 (10) | |
C18 | −0.06254 (15) | −0.5728 (4) | 0.18785 (15) | 0.0629 (11) | |
H2 | 0.26411 | 0.37592 | 0.39787 | 0.0648* | |
H3 | 0.22345 | 0.59864 | 0.44537 | 0.0767* | |
H5 | 0.08773 | 0.31896 | 0.48629 | 0.0733* | |
H6 | 0.12740 | 0.09105 | 0.43955 | 0.0635* | |
H7A | 0.15676 | 0.69601 | 0.52314 | 0.1338* | |
H7B | 0.09666 | 0.59725 | 0.52636 | 0.1338* | |
H7C | 0.10402 | 0.70111 | 0.46458 | 0.1338* | |
H9A | 0.31306 | 0.19893 | 0.21475 | 0.1079* | |
H9B | 0.32195 | 0.05485 | 0.26575 | 0.1079* | |
H9C | 0.31521 | 0.23876 | 0.28843 | 0.1079* | |
H10 | 0.19958 | 0.20108 | 0.15503 | 0.0571* | |
H13 | 0.08914 | −0.29844 | 0.11129 | 0.0542* | |
H14 | 0.03888 | −0.53417 | 0.13754 | 0.0585* | |
H16 | −0.08991 | −0.25389 | 0.19489 | 0.0630* | |
H17 | −0.04267 | −0.01866 | 0.16655 | 0.0597* | |
H18A | −0.04291 | −0.66955 | 0.17383 | 0.0943* | |
H18B | −0.10407 | −0.57056 | 0.16754 | 0.0943* | |
H18C | −0.06101 | −0.57620 | 0.23394 | 0.0943* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0648 (6) | 0.0397 (4) | 0.0433 (4) | 0.0083 (4) | 0.0063 (4) | 0.0018 (3) |
S2 | 0.0445 (4) | 0.0383 (4) | 0.0456 (4) | −0.0034 (3) | 0.0055 (3) | 0.0012 (3) |
O1 | 0.0546 (14) | 0.0807 (16) | 0.0598 (14) | 0.0248 (12) | −0.0034 (11) | −0.0045 (12) |
O2 | 0.1157 (19) | 0.0378 (12) | 0.0559 (13) | −0.0012 (12) | 0.0201 (13) | 0.0062 (10) |
O3 | 0.0365 (11) | 0.0416 (11) | 0.0582 (12) | 0.0028 (9) | 0.0017 (9) | −0.0106 (9) |
O4 | 0.0536 (13) | 0.0568 (12) | 0.0595 (13) | −0.0117 (10) | 0.0242 (10) | −0.0075 (10) |
O5 | 0.0614 (14) | 0.0494 (12) | 0.0672 (13) | 0.0001 (10) | −0.0109 (11) | 0.0170 (10) |
N1 | 0.0385 (14) | 0.0469 (14) | 0.0401 (12) | −0.0011 (10) | 0.0059 (11) | 0.0008 (10) |
N2 | 0.0385 (14) | 0.0420 (13) | 0.0472 (13) | −0.0038 (10) | 0.0108 (11) | −0.0029 (10) |
C1 | 0.0525 (19) | 0.0386 (15) | 0.0381 (14) | 0.0019 (13) | 0.0029 (13) | 0.0020 (12) |
C2 | 0.057 (2) | 0.0473 (18) | 0.0584 (18) | −0.0057 (15) | 0.0110 (15) | 0.0004 (15) |
C3 | 0.088 (3) | 0.0406 (18) | 0.062 (2) | 0.0000 (17) | 0.006 (2) | −0.0058 (15) |
C4 | 0.076 (2) | 0.054 (2) | 0.0385 (15) | 0.0171 (18) | −0.0003 (16) | −0.0036 (14) |
C5 | 0.065 (2) | 0.077 (2) | 0.0431 (16) | 0.0067 (18) | 0.0148 (15) | −0.0024 (16) |
C6 | 0.064 (2) | 0.0512 (19) | 0.0443 (16) | −0.0074 (15) | 0.0105 (15) | 0.0002 (14) |
C7 | 0.124 (3) | 0.079 (3) | 0.061 (2) | 0.044 (2) | 0.004 (2) | −0.015 (2) |
C8 | 0.0373 (17) | 0.0417 (16) | 0.0534 (16) | −0.0076 (13) | 0.0095 (14) | 0.0074 (13) |
C9 | 0.040 (2) | 0.097 (3) | 0.080 (2) | −0.0111 (18) | 0.0128 (17) | 0.018 (2) |
C10 | 0.0427 (18) | 0.0506 (18) | 0.0497 (17) | −0.0090 (14) | 0.0071 (14) | 0.0124 (13) |
C11 | 0.0338 (16) | 0.0290 (14) | 0.0473 (15) | −0.0018 (11) | 0.0077 (12) | −0.0048 (12) |
C12 | 0.0335 (15) | 0.0333 (14) | 0.0438 (14) | −0.0009 (12) | 0.0042 (12) | 0.0002 (11) |
C13 | 0.0416 (17) | 0.0442 (16) | 0.0522 (16) | 0.0055 (13) | 0.0149 (13) | −0.0022 (13) |
C14 | 0.063 (2) | 0.0357 (16) | 0.0491 (16) | 0.0035 (14) | 0.0120 (15) | −0.0033 (13) |
C15 | 0.0488 (18) | 0.0433 (16) | 0.0387 (14) | −0.0092 (13) | 0.0032 (13) | 0.0009 (12) |
C16 | 0.0391 (17) | 0.0541 (19) | 0.067 (2) | −0.0019 (15) | 0.0167 (15) | 0.0012 (15) |
C17 | 0.0439 (18) | 0.0376 (16) | 0.070 (2) | 0.0036 (13) | 0.0156 (15) | −0.0027 (14) |
C18 | 0.074 (2) | 0.053 (2) | 0.0589 (19) | −0.0227 (17) | 0.0003 (17) | 0.0030 (15) |
S1—O1 | 1.419 (2) | C13—C14 | 1.382 (4) |
S1—O2 | 1.416 (2) | C14—C15 | 1.377 (4) |
S1—N1 | 1.697 (2) | C15—C16 | 1.381 (4) |
S1—C1 | 1.743 (3) | C15—C18 | 1.498 (4) |
S2—O3 | 1.6193 (19) | C16—C17 | 1.364 (4) |
S2—O4 | 1.413 (2) | C2—H2 | 0.9300 |
S2—O5 | 1.412 (2) | C3—H3 | 0.9300 |
S2—C12 | 1.742 (3) | C5—H5 | 0.9300 |
O3—C11 | 1.378 (3) | C6—H6 | 0.9300 |
N1—N2 | 1.373 (3) | C7—H7A | 0.9600 |
N1—C8 | 1.361 (4) | C7—H7B | 0.9600 |
N2—C11 | 1.307 (4) | C7—H7C | 0.9600 |
C1—C2 | 1.378 (4) | C9—H9A | 0.9600 |
C1—C6 | 1.371 (4) | C9—H9B | 0.9600 |
C2—C3 | 1.373 (5) | C9—H9C | 0.9600 |
C3—C4 | 1.367 (5) | C10—H10 | 0.9300 |
C4—C5 | 1.379 (5) | C13—H13 | 0.9300 |
C4—C7 | 1.500 (5) | C14—H14 | 0.9300 |
C5—C6 | 1.383 (4) | C16—H16 | 0.9300 |
C8—C9 | 1.497 (4) | C17—H17 | 0.9300 |
C8—C10 | 1.355 (4) | C18—H18A | 0.9600 |
C10—C11 | 1.382 (4) | C18—H18B | 0.9600 |
C12—C13 | 1.380 (3) | C18—H18C | 0.9600 |
C12—C17 | 1.369 (4) | ||
O1—S1—O2 | 120.84 (14) | C14—C15—C18 | 121.3 (2) |
O1—S1—N1 | 103.83 (12) | C16—C15—C18 | 121.1 (3) |
O1—S1—C1 | 111.00 (14) | C15—C16—C17 | 122.1 (3) |
O2—S1—N1 | 105.76 (12) | C12—C17—C16 | 119.1 (2) |
O2—S1—C1 | 109.76 (13) | C1—C2—H2 | 121.00 |
N1—S1—C1 | 103.99 (12) | C3—C2—H2 | 121.00 |
O3—S2—O4 | 108.61 (11) | C2—C3—H3 | 119.00 |
O3—S2—O5 | 102.25 (11) | C4—C3—H3 | 119.00 |
O3—S2—C12 | 103.03 (11) | C4—C5—H5 | 119.00 |
O4—S2—O5 | 121.22 (12) | C6—C5—H5 | 119.00 |
O4—S2—C12 | 110.23 (11) | C1—C6—H6 | 121.00 |
O5—S2—C12 | 109.70 (12) | C5—C6—H6 | 121.00 |
S2—O3—C11 | 120.84 (16) | C4—C7—H7A | 109.00 |
S1—N1—N2 | 116.53 (17) | C4—C7—H7B | 109.00 |
S1—N1—C8 | 130.3 (2) | C4—C7—H7C | 109.00 |
N2—N1—C8 | 112.7 (2) | H7A—C7—H7B | 109.00 |
N1—N2—C11 | 102.3 (2) | H7A—C7—H7C | 109.00 |
S1—C1—C2 | 119.0 (2) | H7B—C7—H7C | 109.00 |
S1—C1—C6 | 119.4 (2) | C8—C9—H9A | 109.00 |
C2—C1—C6 | 121.7 (3) | C8—C9—H9B | 109.00 |
C1—C2—C3 | 118.1 (3) | C8—C9—H9C | 109.00 |
C2—C3—C4 | 122.5 (3) | H9A—C9—H9B | 109.00 |
C3—C4—C5 | 117.9 (3) | H9A—C9—H9C | 109.00 |
C3—C4—C7 | 120.6 (3) | H9B—C9—H9C | 109.00 |
C5—C4—C7 | 121.4 (3) | C8—C10—H10 | 127.00 |
C4—C5—C6 | 121.6 (3) | C11—C10—H10 | 127.00 |
C1—C6—C5 | 118.3 (3) | C12—C13—H13 | 121.00 |
N1—C8—C9 | 125.9 (3) | C14—C13—H13 | 121.00 |
N1—C8—C10 | 105.7 (2) | C13—C14—H14 | 119.00 |
C9—C8—C10 | 128.4 (3) | C15—C14—H14 | 119.00 |
C8—C10—C11 | 105.3 (2) | C15—C16—H16 | 119.00 |
O3—C11—N2 | 118.2 (2) | C17—C16—H16 | 119.00 |
O3—C11—C10 | 127.6 (2) | C12—C17—H17 | 120.00 |
N2—C11—C10 | 114.1 (2) | C16—C17—H17 | 120.00 |
S2—C12—C13 | 119.7 (2) | C15—C18—H18A | 109.00 |
S2—C12—C17 | 119.17 (19) | C15—C18—H18B | 109.00 |
C13—C12—C17 | 121.1 (2) | C15—C18—H18C | 109.00 |
C12—C13—C14 | 118.5 (2) | H18A—C18—H18B | 109.00 |
C13—C14—C15 | 121.7 (2) | H18A—C18—H18C | 109.00 |
C14—C15—C16 | 117.6 (2) | H18B—C18—H18C | 109.00 |
O1—S1—N1—N2 | 177.3 (2) | N2—N1—C8—C10 | −1.1 (3) |
O1—S1—N1—C8 | −11.9 (3) | N1—N2—C11—O3 | −175.7 (2) |
O2—S1—N1—N2 | 49.2 (2) | N1—N2—C11—C10 | −0.4 (3) |
O2—S1—N1—C8 | −140.0 (2) | S1—C1—C2—C3 | 177.7 (2) |
C1—S1—N1—N2 | −66.5 (2) | C6—C1—C2—C3 | −1.6 (4) |
C1—S1—N1—C8 | 104.4 (3) | S1—C1—C6—C5 | −177.5 (2) |
O1—S1—C1—C2 | 31.7 (3) | C2—C1—C6—C5 | 1.8 (4) |
O1—S1—C1—C6 | −148.9 (2) | C1—C2—C3—C4 | 0.0 (5) |
O2—S1—C1—C2 | 167.9 (2) | C2—C3—C4—C5 | 1.4 (5) |
O2—S1—C1—C6 | −12.8 (3) | C2—C3—C4—C7 | −178.1 (3) |
N1—S1—C1—C2 | −79.4 (2) | C3—C4—C5—C6 | −1.2 (5) |
N1—S1—C1—C6 | 100.0 (2) | C7—C4—C5—C6 | 178.3 (3) |
O4—S2—O3—C11 | −22.9 (2) | C4—C5—C6—C1 | −0.4 (4) |
O5—S2—O3—C11 | −152.18 (18) | N1—C8—C10—C11 | 0.8 (3) |
C12—S2—O3—C11 | 93.98 (19) | C9—C8—C10—C11 | 179.3 (3) |
O3—S2—C12—C13 | −116.7 (2) | C8—C10—C11—O3 | 174.6 (2) |
O3—S2—C12—C17 | 65.8 (2) | C8—C10—C11—N2 | −0.3 (3) |
O4—S2—C12—C13 | −0.9 (3) | S2—C12—C13—C14 | −176.7 (2) |
O4—S2—C12—C17 | −178.5 (2) | C17—C12—C13—C14 | 0.8 (4) |
O5—S2—C12—C13 | 135.0 (2) | S2—C12—C17—C16 | 177.7 (2) |
O5—S2—C12—C17 | −42.5 (3) | C13—C12—C17—C16 | 0.2 (4) |
S2—O3—C11—N2 | −123.4 (2) | C12—C13—C14—C15 | −1.3 (4) |
S2—O3—C11—C10 | 61.9 (3) | C13—C14—C15—C16 | 0.8 (4) |
S1—N1—N2—C11 | 173.28 (18) | C13—C14—C15—C18 | −179.2 (3) |
C8—N1—N2—C11 | 0.9 (3) | C14—C15—C16—C17 | 0.2 (4) |
S1—N1—C8—C9 | 9.3 (4) | C18—C15—C16—C17 | −179.8 (3) |
S1—N1—C8—C10 | −172.1 (2) | C15—C16—C17—C12 | −0.7 (5) |
N2—N1—C8—C9 | −179.6 (3) |
Cg2 is the centroid of the C1–C6 benzene ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C18—H18b···Cg2i | 0.96 | 2.66 | 3.471 (3) | 142 |
Symmetry code: (i) −x, y−1, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C18H18N2O5S2 |
Mr | 406.46 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 296 |
a, b, c (Å) | 22.296 (2), 8.0444 (7), 20.915 (2) |
β (°) | 98.521 (6) |
V (Å3) | 3709.7 (6) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.32 |
Crystal size (mm) | 0.30 × 0.25 × 0.22 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.910, 0.933 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15506, 4124, 2548 |
Rint | 0.055 |
(sin θ/λ)max (Å−1) | 0.643 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.057, 0.128, 1.01 |
No. of reflections | 4124 |
No. of parameters | 247 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.27, −0.35 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Cg2 is the centroid of the C1–C6 benzene ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C18—H18b···Cg2i | 0.96 | 2.66 | 3.471 (3) | 142 |
Symmetry code: (i) −x, y−1, −z+1/2. |
Acknowledgements
The authors acknowledge the provision of funds for the purchase of a diffractometer and encouragement by Dr Muhammad Akram Chaudhary, former Vice Chancellor of the University of Sargodha, Pakistan. The authors also acknowledge the technical support provided by Syed Muhammad Hussain Rizvi of Bana International, Karachi, Pakistan.
References
Bruker (2005). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Bruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Gogoi, S., Zhao, C.-G. & Ding, D. (2009). Org. Lett. 11, 2246–2252. Web of Science CSD CrossRef Google Scholar
Murtaza, S., Kausar, N., Abbas, A., Tahir, M. N. & Zulfiqar, M. (2012). Acta Cryst. E68, o1616. CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals 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.
The title compound (I), (Fig. 1) has been synthesized as part of a study of enzyme inhibition and other biological activities of molecules incoorporating pyrazole moiety, an important component of many drugs. (I), was also prepared as a continuation of our work on sulfonyl derivatives, such as ethyl (3E)-3-[2-(4-bromophenylsulfonyl)hydrazin-1-ylidene]butanoate (Murtaza et al., 2012). The crystal structure of 1(R)-4-(3-hydroxy-5-methyl-pyrazol-1-yl)-octan-2-one (Gogoi et al. 2009) has also been published and contains a 5-methyl-1H-pyrazol-3-ol unit similar to the one observed here.
In (I) , Fig. 1, the tolyl groups A (C1—C7) and B (C12—C18) are planar with r.m.s. deviations of 0.0137 and 0.0043 Å, respectively. The dihedral angle between the A/B planes is 16.15 (11)°. The central group, 5-methyl-1H-pyrazol-3-ol, C (C8—C11/N1/N2/O3) is also planar with an r.m.s. deviation of 0.0231 Å. The sulfonyl groups D (O1/S1/O2) and E (O4/S2/O5) are of course planar. The dihedral angles between A/C, A/D, A/E, B/C, B/D and B/E are 89.85 (8)°, 43.20 (9)°, 67.25 (13)°, 73.82 (8)°, 31.56 (9)° and 33.61 (12)°, respectively.
C18—H18b···π contacts form between dissimilar tolyl rings (Table 1). Weak π–π interactions are also found between like ring systems Cg2···Cg2i [i = 1/2 - x, 1/2 - y, 1 - z] and Cg3···Cg3ii [ii = - x, y, 1/2 - z] at distances of 4.1364 (19) and 4.0630 (16) %A respectively, where Cg2 and Cg3 are the centroids of the (C1—C6) and (C12—C17), benzene rings. These interactions play a role in stabilizing the structure, generating a three dimensional network.