organic compounds
N-[4-(Benzylsulfamoyl)phenyl]acetamide
aMaterials Chemistry Laboratory, Department of Chemistry, Government College University, Lahore 54000, Pakistan, and bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com
A folded conformation is found for the title compound, C15H16N2O3S, whereby the benzene rings come into close proximity [centroid–centroid distance = 4.0357 (12) Å and the dihedral angle between them = 24.37 (10)°]. The amide group is coplanar with the benzene ring to which it is bound [C—C—N—C torsion angle = 11.1 (3)°]. In the crystal packing, two-dimensional arrays in the (101) plane are formed via N—H⋯O hydrogen bonding.
Related literature
For background to the pharmacological uses of et al. (1998); Kazmierski et al. (2004). For related structures, see: Khan et al. (2010); Sharif et al. (2010).
see: BeateExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); 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 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536810027698/jj2043sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810027698/jj2043Isup2.hkl
To 4-acetamidobenzenesulfonyl chloride (498 mg, 2.14 mmol) in distilled water (10 ml) was added benzylamine (234 ml, 2.14 mmol), the reaction mixture was stirred at room temperature while maintaining the pH of the reaction mixture at 8 using 3% sodium carbonate. The progress of the reaction was monitored by TLC. After consumption of all the reactants, the precipitates were filtered, dried and crystallized from methanol to yield colourless crystals.
The C-bound H atoms were geometrically placed (C–H = 0.93–0.97 Å) and refined as riding with Uiso(H) = 1.2–1.5Ueq(C). The N-bound H atom was refined with the distance restraint N–H = 0.88±0.01 Å, and with Uiso(H) = 1.2Ueq(N).
Sulfonamide drugs are used, for example, as inhibitors of HIV infection (Kazmierski et al., 2004) and as anti-hypertensive drugs (Beate et al., 1998). In connection with on-going structural studies of
(Khan et al., 2010; Sharif et al., 2010), the crystal and molecular structure of the title compound, C15H16N2O3S, was investigated.The molecule of C15H16N2O3S has a folded conformation with the benzene ring of the benzyl group somewhat orientated over the S-bound benzene ring. The rings are approximately parallel, forming a dihedral angle of 24.37 (10) °; the distance between the ring centroids is 4.0357 (12) Å. The amide group is essentially co-planar with the ring to which it is bound as seen in the C10–C11–N2–C14 torsion angle of 11.1 (3) °.
The crystal packing is dominated by N–H···O hydrogen bonds whereby the N1–H atom forms a hydrogen bond to the amide-carbonyl, and the amide N2–H forms a contact with the S-bound O2 atom, Table 1. The former leads to centrosymmetric aggregates and these are connected by the latter into a 2-D array in the (1 0 1) plane, Fig. 2.
For background to the pharmacological uses of
see: Beate et al. (1998); Kazmierski et al. (2004). For related structures, see: Khan et al. (2010); Sharif et al. (2010).Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C15H16N2O3S | F(000) = 640 |
Mr = 304.37 | Dx = 1.355 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 4154 reflections |
a = 9.0646 (9) Å | θ = 2.6–27.9° |
b = 13.6888 (14) Å | µ = 0.23 mm−1 |
c = 12.1651 (12) Å | T = 293 K |
β = 98.635 (5)° | Prism, colourless |
V = 1492.4 (3) Å3 | 0.19 × 0.09 × 0.07 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 3577 independent reflections |
Radiation source: fine-focus sealed tube | 2689 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.036 |
φ and ω scans | θmax = 28.0°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −11→11 |
Tmin = 0.868, Tmax = 0.948 | k = −18→17 |
13777 measured reflections | l = −16→16 |
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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.124 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0643P)2 + 0.3076P] where P = (Fo2 + 2Fc2)/3 |
3577 reflections | (Δ/σ)max = 0.001 |
197 parameters | Δρmax = 0.25 e Å−3 |
2 restraints | Δρmin = −0.24 e Å−3 |
C15H16N2O3S | V = 1492.4 (3) Å3 |
Mr = 304.37 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 9.0646 (9) Å | µ = 0.23 mm−1 |
b = 13.6888 (14) Å | T = 293 K |
c = 12.1651 (12) Å | 0.19 × 0.09 × 0.07 mm |
β = 98.635 (5)° |
Bruker APEXII CCD diffractometer | 3577 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2689 reflections with I > 2σ(I) |
Tmin = 0.868, Tmax = 0.948 | Rint = 0.036 |
13777 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 2 restraints |
wR(F2) = 0.124 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | Δρmax = 0.25 e Å−3 |
3577 reflections | Δρmin = −0.24 e Å−3 |
197 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | 0.11090 (5) | 0.33181 (3) | 0.82483 (3) | 0.03999 (15) | |
O1 | 0.21873 (16) | 0.27094 (10) | 0.88809 (10) | 0.0536 (4) | |
O2 | −0.04454 (15) | 0.31532 (11) | 0.82667 (12) | 0.0594 (4) | |
O3 | 0.02478 (16) | 0.40834 (11) | 0.26180 (11) | 0.0596 (4) | |
N1 | 0.14186 (17) | 0.44201 (11) | 0.86867 (12) | 0.0448 (4) | |
H1N | 0.0786 (18) | 0.4846 (12) | 0.8311 (15) | 0.054* | |
N2 | 0.20419 (16) | 0.31175 (10) | 0.35277 (11) | 0.0399 (3) | |
H2N | 0.2876 (15) | 0.2778 (12) | 0.3473 (16) | 0.048* | |
C1 | 0.2944 (2) | 0.47687 (16) | 0.90443 (16) | 0.0559 (5) | |
H1A | 0.3409 | 0.4347 | 0.9638 | 0.067* | |
H1B | 0.2888 | 0.5418 | 0.9355 | 0.067* | |
C2 | 0.3944 (2) | 0.48133 (13) | 0.81674 (15) | 0.0464 (4) | |
C3 | 0.3606 (2) | 0.54229 (14) | 0.72574 (17) | 0.0532 (5) | |
H3 | 0.2748 | 0.5805 | 0.7184 | 0.064* | |
C4 | 0.4533 (3) | 0.54678 (16) | 0.6461 (2) | 0.0661 (6) | |
H4 | 0.4295 | 0.5880 | 0.5852 | 0.079* | |
C5 | 0.5799 (3) | 0.49141 (18) | 0.6555 (2) | 0.0732 (7) | |
H5 | 0.6416 | 0.4945 | 0.6011 | 0.088* | |
C6 | 0.6154 (3) | 0.43158 (18) | 0.7452 (2) | 0.0745 (7) | |
H6 | 0.7021 | 0.3943 | 0.7523 | 0.089* | |
C7 | 0.5230 (2) | 0.42612 (15) | 0.8254 (2) | 0.0611 (6) | |
H7 | 0.5477 | 0.3848 | 0.8860 | 0.073* | |
C8 | 0.13636 (18) | 0.32476 (11) | 0.68406 (13) | 0.0354 (3) | |
C9 | 0.0308 (2) | 0.36444 (16) | 0.60359 (15) | 0.0499 (5) | |
H9 | −0.0539 | 0.3934 | 0.6238 | 0.060* | |
C10 | 0.0494 (2) | 0.36167 (15) | 0.49303 (15) | 0.0496 (5) | |
H10 | −0.0223 | 0.3888 | 0.4390 | 0.059* | |
C11 | 0.17580 (18) | 0.31823 (11) | 0.46307 (13) | 0.0343 (3) | |
C12 | 0.2803 (2) | 0.27757 (14) | 0.54465 (14) | 0.0436 (4) | |
H12 | 0.3647 | 0.2477 | 0.5250 | 0.052* | |
C13 | 0.26102 (19) | 0.28078 (13) | 0.65483 (14) | 0.0426 (4) | |
H13 | 0.3321 | 0.2533 | 0.7091 | 0.051* | |
C14 | 0.1335 (2) | 0.35627 (13) | 0.26110 (14) | 0.0418 (4) | |
C15 | 0.1978 (3) | 0.33645 (17) | 0.15660 (16) | 0.0605 (6) | |
H15A | 0.1635 | 0.2741 | 0.1270 | 0.091* | |
H15B | 0.3048 | 0.3360 | 0.1730 | 0.091* | |
H15C | 0.1664 | 0.3865 | 0.1029 | 0.091* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0444 (3) | 0.0476 (3) | 0.0295 (2) | −0.00397 (18) | 0.01067 (17) | 0.00348 (17) |
O1 | 0.0718 (10) | 0.0527 (7) | 0.0358 (6) | 0.0085 (6) | 0.0066 (6) | 0.0080 (6) |
O2 | 0.0492 (8) | 0.0830 (10) | 0.0502 (8) | −0.0168 (7) | 0.0209 (6) | 0.0030 (7) |
O3 | 0.0599 (9) | 0.0774 (10) | 0.0420 (7) | 0.0218 (7) | 0.0096 (6) | 0.0121 (7) |
N1 | 0.0510 (9) | 0.0497 (9) | 0.0341 (7) | 0.0033 (7) | 0.0079 (6) | −0.0005 (6) |
N2 | 0.0407 (8) | 0.0491 (8) | 0.0312 (7) | 0.0066 (6) | 0.0094 (6) | −0.0011 (6) |
C1 | 0.0667 (13) | 0.0620 (12) | 0.0363 (9) | −0.0135 (10) | −0.0015 (9) | −0.0055 (9) |
C2 | 0.0470 (10) | 0.0429 (9) | 0.0467 (10) | −0.0085 (8) | −0.0014 (8) | −0.0028 (8) |
C3 | 0.0547 (12) | 0.0492 (10) | 0.0555 (11) | 0.0010 (8) | 0.0081 (9) | 0.0034 (9) |
C4 | 0.0772 (16) | 0.0596 (13) | 0.0634 (14) | −0.0104 (11) | 0.0167 (12) | 0.0071 (11) |
C5 | 0.0672 (15) | 0.0670 (14) | 0.0917 (18) | −0.0175 (12) | 0.0319 (14) | −0.0142 (13) |
C6 | 0.0467 (13) | 0.0666 (14) | 0.109 (2) | −0.0009 (10) | 0.0096 (13) | −0.0133 (14) |
C7 | 0.0554 (13) | 0.0516 (11) | 0.0706 (14) | −0.0016 (9) | −0.0091 (11) | 0.0039 (10) |
C8 | 0.0362 (9) | 0.0418 (8) | 0.0290 (7) | −0.0043 (6) | 0.0079 (6) | 0.0004 (6) |
C9 | 0.0395 (10) | 0.0759 (13) | 0.0357 (9) | 0.0162 (9) | 0.0105 (7) | 0.0016 (9) |
C10 | 0.0420 (10) | 0.0736 (12) | 0.0329 (9) | 0.0161 (9) | 0.0050 (7) | 0.0031 (9) |
C11 | 0.0351 (8) | 0.0379 (8) | 0.0305 (7) | −0.0024 (6) | 0.0074 (6) | −0.0015 (6) |
C12 | 0.0397 (9) | 0.0541 (10) | 0.0383 (9) | 0.0122 (8) | 0.0098 (7) | 0.0001 (8) |
C13 | 0.0408 (10) | 0.0523 (10) | 0.0341 (8) | 0.0080 (8) | 0.0038 (7) | 0.0044 (7) |
C14 | 0.0461 (10) | 0.0468 (9) | 0.0327 (8) | −0.0030 (8) | 0.0063 (7) | −0.0006 (7) |
C15 | 0.0711 (14) | 0.0797 (15) | 0.0328 (9) | 0.0057 (11) | 0.0145 (9) | 0.0024 (9) |
S1—O1 | 1.4199 (13) | C5—C6 | 1.363 (4) |
S1—O2 | 1.4304 (14) | C5—H5 | 0.9300 |
S1—N1 | 1.6105 (16) | C6—C7 | 1.380 (3) |
S1—C8 | 1.7647 (16) | C6—H6 | 0.9300 |
O3—C14 | 1.217 (2) | C7—H7 | 0.9300 |
N1—C1 | 1.466 (2) | C8—C9 | 1.374 (2) |
N1—H1N | 0.893 (9) | C8—C13 | 1.373 (2) |
N2—C14 | 1.346 (2) | C9—C10 | 1.381 (2) |
N2—C11 | 1.4064 (19) | C9—H9 | 0.9300 |
N2—H2N | 0.899 (9) | C10—C11 | 1.387 (2) |
C1—C2 | 1.501 (3) | C10—H10 | 0.9300 |
C1—H1A | 0.9700 | C11—C12 | 1.382 (2) |
C1—H1B | 0.9700 | C12—C13 | 1.378 (2) |
C2—C7 | 1.380 (3) | C12—H12 | 0.9300 |
C2—C3 | 1.383 (3) | C13—H13 | 0.9300 |
C3—C4 | 1.376 (3) | C14—C15 | 1.501 (2) |
C3—H3 | 0.9300 | C15—H15A | 0.9600 |
C4—C5 | 1.366 (3) | C15—H15B | 0.9600 |
C4—H4 | 0.9300 | C15—H15C | 0.9600 |
O1—S1—O2 | 119.90 (9) | C7—C6—H6 | 119.9 |
O1—S1—N1 | 107.38 (8) | C2—C7—C6 | 120.8 (2) |
O2—S1—N1 | 105.41 (9) | C2—C7—H7 | 119.6 |
O1—S1—C8 | 108.31 (8) | C6—C7—H7 | 119.6 |
O2—S1—C8 | 106.21 (8) | C9—C8—C13 | 120.05 (15) |
N1—S1—C8 | 109.33 (8) | C9—C8—S1 | 119.43 (13) |
C1—N1—S1 | 120.86 (14) | C13—C8—S1 | 120.52 (13) |
C1—N1—H1N | 116.3 (13) | C8—C9—C10 | 120.62 (16) |
S1—N1—H1N | 112.0 (13) | C8—C9—H9 | 119.7 |
C14—N2—C11 | 129.01 (14) | C10—C9—H9 | 119.7 |
C14—N2—H2N | 118.3 (13) | C9—C10—C11 | 119.62 (16) |
C11—N2—H2N | 112.4 (13) | C9—C10—H10 | 120.2 |
N1—C1—C2 | 116.46 (15) | C11—C10—H10 | 120.2 |
N1—C1—H1A | 108.2 | C12—C11—C10 | 119.21 (15) |
C2—C1—H1A | 108.2 | C12—C11—N2 | 117.12 (14) |
N1—C1—H1B | 108.2 | C10—C11—N2 | 123.66 (15) |
C2—C1—H1B | 108.2 | C13—C12—C11 | 120.82 (15) |
H1A—C1—H1B | 107.3 | C13—C12—H12 | 119.6 |
C7—C2—C3 | 118.3 (2) | C11—C12—H12 | 119.6 |
C7—C2—C1 | 121.10 (19) | C8—C13—C12 | 119.68 (16) |
C3—C2—C1 | 120.57 (18) | C8—C13—H13 | 120.2 |
C4—C3—C2 | 120.4 (2) | C12—C13—H13 | 120.2 |
C4—C3—H3 | 119.8 | O3—C14—N2 | 123.00 (16) |
C2—C3—H3 | 119.8 | O3—C14—C15 | 121.99 (17) |
C5—C4—C3 | 120.7 (2) | N2—C14—C15 | 115.01 (16) |
C5—C4—H4 | 119.7 | C14—C15—H15A | 109.5 |
C3—C4—H4 | 119.7 | C14—C15—H15B | 109.5 |
C6—C5—C4 | 119.7 (2) | H15A—C15—H15B | 109.5 |
C6—C5—H5 | 120.2 | C14—C15—H15C | 109.5 |
C4—C5—H5 | 120.2 | H15A—C15—H15C | 109.5 |
C5—C6—C7 | 120.2 (2) | H15B—C15—H15C | 109.5 |
C5—C6—H6 | 119.9 | ||
O1—S1—N1—C1 | 35.74 (15) | O1—S1—C8—C13 | −11.08 (17) |
O2—S1—N1—C1 | 164.65 (14) | O2—S1—C8—C13 | −141.10 (15) |
C8—S1—N1—C1 | −81.56 (15) | N1—S1—C8—C13 | 105.63 (15) |
S1—N1—C1—C2 | 64.4 (2) | C13—C8—C9—C10 | −0.8 (3) |
N1—C1—C2—C7 | −118.2 (2) | S1—C8—C9—C10 | 178.69 (16) |
N1—C1—C2—C3 | 62.7 (2) | C8—C9—C10—C11 | 0.1 (3) |
C7—C2—C3—C4 | 0.4 (3) | C9—C10—C11—C12 | 0.6 (3) |
C1—C2—C3—C4 | 179.41 (19) | C9—C10—C11—N2 | 179.85 (18) |
C2—C3—C4—C5 | −0.1 (3) | C14—N2—C11—C12 | −169.65 (17) |
C3—C4—C5—C6 | −0.5 (4) | C14—N2—C11—C10 | 11.1 (3) |
C4—C5—C6—C7 | 0.7 (4) | C10—C11—C12—C13 | −0.8 (3) |
C3—C2—C7—C6 | −0.1 (3) | N2—C11—C12—C13 | 179.98 (16) |
C1—C2—C7—C6 | −179.14 (19) | C9—C8—C13—C12 | 0.6 (3) |
C5—C6—C7—C2 | −0.5 (3) | S1—C8—C13—C12 | −178.81 (14) |
O1—S1—C8—C9 | 169.47 (15) | C11—C12—C13—C8 | 0.1 (3) |
O2—S1—C8—C9 | 39.45 (17) | C11—N2—C14—O3 | −3.2 (3) |
N1—S1—C8—C9 | −73.82 (16) | C11—N2—C14—C15 | 177.27 (17) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1n···O3i | 0.89 (2) | 2.00 (2) | 2.877 (2) | 168 (2) |
N2—H2n···O2ii | 0.90 (2) | 2.03 (2) | 2.921 (2) | 172 (2) |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) x+1/2, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C15H16N2O3S |
Mr | 304.37 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 9.0646 (9), 13.6888 (14), 12.1651 (12) |
β (°) | 98.635 (5) |
V (Å3) | 1492.4 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.23 |
Crystal size (mm) | 0.19 × 0.09 × 0.07 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.868, 0.948 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13777, 3577, 2689 |
Rint | 0.036 |
(sin θ/λ)max (Å−1) | 0.661 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.124, 1.02 |
No. of reflections | 3577 |
No. of parameters | 197 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.25, −0.24 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1n···O3i | 0.894 (17) | 1.996 (17) | 2.877 (2) | 168.2 (16) |
N2—H2n···O2ii | 0.898 (15) | 2.029 (15) | 2.921 (2) | 171.5 (16) |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) x+1/2, −y+1/2, z−1/2. |
Footnotes
‡Additional correspondence author, e-mail: iuklodhi@yahoo.com.
Acknowledgements
We are grateful to Mr Munawar Hussain, Engineering Cell GC University, Lahore, for providing support services to the Materials Chemistry Laboratory.
References
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Sulfonamide drugs are used, for example, as inhibitors of HIV infection (Kazmierski et al., 2004) and as anti-hypertensive drugs (Beate et al., 1998). In connection with on-going structural studies of sulfonamides (Khan et al., 2010; Sharif et al., 2010), the crystal and molecular structure of the title compound, C15H16N2O3S, was investigated.
The molecule of C15H16N2O3S has a folded conformation with the benzene ring of the benzyl group somewhat orientated over the S-bound benzene ring. The rings are approximately parallel, forming a dihedral angle of 24.37 (10) °; the distance between the ring centroids is 4.0357 (12) Å. The amide group is essentially co-planar with the ring to which it is bound as seen in the C10–C11–N2–C14 torsion angle of 11.1 (3) °.
The crystal packing is dominated by N–H···O hydrogen bonds whereby the N1–H atom forms a hydrogen bond to the amide-carbonyl, and the amide N2–H forms a contact with the S-bound O2 atom, Table 1. The former leads to centrosymmetric aggregates and these are connected by the latter into a 2-D array in the (1 0 1) plane, Fig. 2.