organic compounds
N-Cyclohexyl-N-propylbenzenesulfonamide
aDepartment of Chemistry, Government College University, Lahore 54000, Pakistan, and bApplied Chemistry Research Centre, PCSIR Laboratories Complex, Ferozpure Road, Lahore 54600, Pakistan
*Correspondence e-mail: iukhan.gcu@gmail.com
The title compound, C15H23NO2S, synthesized by N-methylation of cyclohexylamine sulfonamide with propyl iodide, is of interest as a precursor to biologically active sulfur-containing The cyclohexyl ring exists in the chair form and the dihedral angle between the ring plane of the benzene ring and that of the cyclohexyl ring is 50.13 (9)°.
Related literature
For the synthesis of related molecules, see: Kayser et al. (2004); Zia-ur-Rehman et al. (2006, 2009). For the biological activity of see: La Roche & Co (1967); Rough et al. (1998); Gennarti et al. (1994). For related structures, see: Arshad et al. (2008); Khan et al. (2009); Gowda et al. (2007a,b,c). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
|
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: PLATON (Spek, 2009) and Mercury (Macrae et al., 2006); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
10.1107/S1600536809046650/hg2581sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809046650/hg2581Isup2.hkl
A mixture of N-cyclohexylbenzene sulfonamide (1 g, 0.43 mmol), sodium hydride (0.21 g; 0.88 mmoles) and N, N-dimethylformamide (10.0 ml) was stirred at room temperature for half an hour followed by addition of propyl iodide (0.146 g; 0.86 mmoles). Stirring was continued further for a period of three hours and the contents were poured over crushed ice. Precipitated product was isolated, washed and crystallized from methanol.
All hydrogen atoms were refined geometrically and treated as riding on their parent atoms. The following distances were used: Aromatic C–H=0.93Å, methine C–H=0.98Å, methylene C–H=0.97Å and methyl C–H=0.96Å U(H) was set to 1.2Ueq of the parent atoms or 1.5Ueq for methyl group.
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: PLATON (Spek, 2009) and Mercury (Macrae et al., 2006); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. The molecular structure of (I), with displacement ellipsoids at the 50% probability level. |
C15H23NO2S | F(000) = 608 |
Mr = 281.40 | Dx = 1.211 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 4904 reflections |
a = 8.5532 (3) Å | θ = 2.2–24.1° |
b = 11.6877 (4) Å | µ = 0.21 mm−1 |
c = 15.4410 (5) Å | T = 296 K |
β = 90.649 (2)° | Needles, colourless |
V = 1543.50 (9) Å3 | 0.42 × 0.31 × 0.25 mm |
Z = 4 |
Bruker APEXII CCD area-detector diffractometer | 3839 independent reflections |
Radiation source: fine-focus sealed tube | 2475 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.041 |
ϕ and ω scans | θmax = 28.3°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | h = −11→11 |
Tmin = 0.918, Tmax = 0.950 | k = −15→15 |
17345 measured reflections | l = −20→18 |
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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0648P)2 + 0.2752P] where P = (Fo2 + 2Fc2)/3 |
3839 reflections | (Δ/σ)max = 0.001 |
173 parameters | Δρmax = 0.29 e Å−3 |
0 restraints | Δρmin = −0.21 e Å−3 |
C15H23NO2S | V = 1543.50 (9) Å3 |
Mr = 281.40 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.5532 (3) Å | µ = 0.21 mm−1 |
b = 11.6877 (4) Å | T = 296 K |
c = 15.4410 (5) Å | 0.42 × 0.31 × 0.25 mm |
β = 90.649 (2)° |
Bruker APEXII CCD area-detector diffractometer | 3839 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | 2475 reflections with I > 2σ(I) |
Tmin = 0.918, Tmax = 0.950 | Rint = 0.041 |
17345 measured reflections |
R[F2 > 2σ(F2)] = 0.050 | 0 restraints |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.29 e Å−3 |
3839 reflections | Δρmin = −0.21 e Å−3 |
173 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 | ||
S1 | 0.25538 (5) | 0.86234 (4) | 0.23201 (4) | 0.05546 (19) | |
O1 | 0.36858 (17) | 0.78724 (15) | 0.26990 (10) | 0.0777 (5) | |
O2 | 0.29533 (18) | 0.97863 (13) | 0.21357 (12) | 0.0803 (5) | |
N1 | 0.10568 (17) | 0.86333 (13) | 0.29521 (10) | 0.0483 (4) | |
C1 | 0.1958 (2) | 0.80108 (17) | 0.13244 (12) | 0.0480 (4) | |
C2 | 0.1431 (3) | 0.8704 (2) | 0.06558 (16) | 0.0702 (6) | |
H2 | 0.1435 | 0.9495 | 0.0718 | 0.084* | |
C3 | 0.0896 (3) | 0.8205 (3) | −0.01092 (16) | 0.0908 (9) | |
H3 | 0.0530 | 0.8666 | −0.0559 | 0.109* | |
C4 | 0.0904 (3) | 0.7056 (3) | −0.02042 (18) | 0.0919 (9) | |
H4 | 0.0546 | 0.6731 | −0.0719 | 0.110* | |
C5 | 0.1431 (3) | 0.6373 (2) | 0.04474 (18) | 0.0800 (7) | |
H5 | 0.1438 | 0.5584 | 0.0373 | 0.096* | |
C6 | 0.1956 (2) | 0.68386 (18) | 0.12180 (14) | 0.0579 (5) | |
H6 | 0.2307 | 0.6365 | 0.1664 | 0.070* | |
C7 | −0.01977 (19) | 0.94843 (16) | 0.27965 (11) | 0.0458 (4) | |
H7 | 0.0252 | 1.0101 | 0.2449 | 0.055* | |
C8 | −0.0737 (2) | 1.00139 (17) | 0.36414 (12) | 0.0535 (5) | |
H8A | −0.1183 | 0.9425 | 0.4006 | 0.064* | |
H8B | 0.0154 | 1.0342 | 0.3947 | 0.064* | |
C9 | −0.1949 (3) | 1.09394 (19) | 0.34699 (16) | 0.0680 (6) | |
H9A | −0.2317 | 1.1236 | 0.4018 | 0.082* | |
H9B | −0.1467 | 1.1565 | 0.3157 | 0.082* | |
C10 | −0.3316 (2) | 1.0492 (2) | 0.29526 (14) | 0.0630 (6) | |
H10A | −0.4030 | 1.1116 | 0.2825 | 0.076* | |
H10B | −0.3871 | 0.9929 | 0.3293 | 0.076* | |
C11 | −0.2801 (3) | 0.9953 (2) | 0.21182 (14) | 0.0703 (6) | |
H11A | −0.2348 | 1.0533 | 0.1749 | 0.084* | |
H11B | −0.3702 | 0.9632 | 0.1818 | 0.084* | |
C12 | −0.1603 (2) | 0.9014 (2) | 0.22887 (14) | 0.0613 (6) | |
H12A | −0.1255 | 0.8701 | 0.1742 | 0.074* | |
H12B | −0.2084 | 0.8401 | 0.2615 | 0.074* | |
C13 | 0.0697 (2) | 0.75885 (17) | 0.34458 (13) | 0.0545 (5) | |
H13A | 0.1140 | 0.6935 | 0.3149 | 0.065* | |
H13B | −0.0428 | 0.7487 | 0.3456 | 0.065* | |
C14 | 0.1314 (3) | 0.7611 (2) | 0.43649 (16) | 0.0804 (7) | |
H14A | 0.2445 | 0.7669 | 0.4357 | 0.097* | |
H14B | 0.0914 | 0.8284 | 0.4655 | 0.097* | |
C15 | 0.0861 (4) | 0.6566 (2) | 0.48662 (18) | 0.0980 (9) | |
H15A | −0.0250 | 0.6564 | 0.4950 | 0.147* | |
H15B | 0.1385 | 0.6571 | 0.5419 | 0.147* | |
H15C | 0.1157 | 0.5894 | 0.4551 | 0.147* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0365 (3) | 0.0626 (3) | 0.0673 (4) | −0.0039 (2) | 0.0035 (2) | −0.0127 (3) |
O1 | 0.0456 (8) | 0.1083 (13) | 0.0789 (11) | 0.0169 (8) | −0.0108 (7) | −0.0136 (9) |
O2 | 0.0622 (9) | 0.0621 (10) | 0.1173 (13) | −0.0246 (7) | 0.0279 (9) | −0.0219 (9) |
N1 | 0.0423 (8) | 0.0550 (9) | 0.0477 (9) | 0.0016 (7) | 0.0022 (7) | −0.0050 (7) |
C1 | 0.0392 (9) | 0.0537 (11) | 0.0514 (11) | 0.0011 (8) | 0.0112 (8) | 0.0023 (9) |
C2 | 0.0690 (15) | 0.0709 (15) | 0.0711 (16) | 0.0122 (11) | 0.0181 (12) | 0.0127 (12) |
C3 | 0.0806 (18) | 0.140 (3) | 0.0521 (15) | 0.0295 (18) | 0.0081 (12) | 0.0178 (16) |
C4 | 0.0700 (16) | 0.142 (3) | 0.0642 (17) | 0.0134 (18) | 0.0044 (13) | −0.0290 (18) |
C5 | 0.0737 (17) | 0.0819 (17) | 0.0847 (19) | −0.0037 (13) | 0.0127 (14) | −0.0285 (15) |
C6 | 0.0567 (12) | 0.0565 (12) | 0.0607 (13) | 0.0038 (9) | 0.0086 (10) | −0.0045 (10) |
C7 | 0.0402 (9) | 0.0529 (11) | 0.0444 (10) | −0.0004 (8) | 0.0011 (7) | −0.0036 (8) |
C8 | 0.0516 (11) | 0.0602 (12) | 0.0485 (11) | 0.0030 (9) | −0.0064 (8) | −0.0130 (9) |
C9 | 0.0713 (15) | 0.0626 (13) | 0.0702 (14) | 0.0163 (11) | 0.0034 (11) | −0.0114 (11) |
C10 | 0.0527 (12) | 0.0780 (14) | 0.0584 (13) | 0.0185 (10) | 0.0022 (10) | 0.0054 (11) |
C11 | 0.0524 (12) | 0.1059 (19) | 0.0525 (12) | 0.0112 (12) | −0.0068 (10) | 0.0014 (12) |
C12 | 0.0464 (11) | 0.0857 (15) | 0.0518 (12) | 0.0056 (10) | −0.0062 (9) | −0.0209 (11) |
C13 | 0.0507 (11) | 0.0565 (12) | 0.0564 (12) | 0.0007 (9) | −0.0040 (9) | −0.0079 (9) |
C14 | 0.0900 (18) | 0.0855 (17) | 0.0652 (15) | 0.0007 (14) | −0.0233 (13) | 0.0073 (13) |
C15 | 0.119 (2) | 0.095 (2) | 0.0801 (18) | 0.0125 (17) | 0.0040 (17) | 0.0243 (15) |
S1—O1 | 1.4274 (16) | C8—H8B | 0.9700 |
S1—O2 | 1.4308 (16) | C9—C10 | 1.502 (3) |
S1—N1 | 1.6187 (15) | C9—H9A | 0.9700 |
S1—C1 | 1.7658 (19) | C9—H9B | 0.9700 |
N1—C13 | 1.474 (2) | C10—C11 | 1.504 (3) |
N1—C7 | 1.481 (2) | C10—H10A | 0.9700 |
C1—C6 | 1.380 (3) | C10—H10B | 0.9700 |
C1—C2 | 1.384 (3) | C11—C12 | 1.522 (3) |
C2—C3 | 1.390 (4) | C11—H11A | 0.9700 |
C2—H2 | 0.9300 | C11—H11B | 0.9700 |
C3—C4 | 1.351 (4) | C12—H12A | 0.9700 |
C3—H3 | 0.9300 | C12—H12B | 0.9700 |
C4—C5 | 1.357 (4) | C13—C14 | 1.509 (3) |
C4—H4 | 0.9300 | C13—H13A | 0.9700 |
C5—C6 | 1.379 (3) | C13—H13B | 0.9700 |
C5—H5 | 0.9300 | C14—C15 | 1.499 (3) |
C6—H6 | 0.9300 | C14—H14A | 0.9700 |
C7—C8 | 1.520 (2) | C14—H14B | 0.9700 |
C7—C12 | 1.530 (2) | C15—H15A | 0.9600 |
C7—H7 | 0.9800 | C15—H15B | 0.9600 |
C8—C9 | 1.520 (3) | C15—H15C | 0.9600 |
C8—H8A | 0.9700 | ||
O1—S1—O2 | 120.22 (11) | C8—C9—H9A | 109.3 |
O1—S1—N1 | 107.15 (9) | C10—C9—H9B | 109.3 |
O2—S1—N1 | 107.79 (9) | C8—C9—H9B | 109.3 |
O1—S1—C1 | 107.16 (9) | H9A—C9—H9B | 107.9 |
O2—S1—C1 | 106.21 (10) | C9—C10—C11 | 111.57 (18) |
N1—S1—C1 | 107.79 (8) | C9—C10—H10A | 109.3 |
C13—N1—C7 | 119.02 (15) | C11—C10—H10A | 109.3 |
C13—N1—S1 | 118.51 (13) | C9—C10—H10B | 109.3 |
C7—N1—S1 | 118.92 (12) | C11—C10—H10B | 109.3 |
C6—C1—C2 | 119.5 (2) | H10A—C10—H10B | 108.0 |
C6—C1—S1 | 120.41 (15) | C10—C11—C12 | 110.90 (17) |
C2—C1—S1 | 120.04 (17) | C10—C11—H11A | 109.5 |
C1—C2—C3 | 119.4 (2) | C12—C11—H11A | 109.5 |
C1—C2—H2 | 120.3 | C10—C11—H11B | 109.5 |
C3—C2—H2 | 120.3 | C12—C11—H11B | 109.5 |
C4—C3—C2 | 120.5 (3) | H11A—C11—H11B | 108.0 |
C4—C3—H3 | 119.8 | C11—C12—C7 | 110.64 (17) |
C2—C3—H3 | 119.8 | C11—C12—H12A | 109.5 |
C3—C4—C5 | 120.4 (3) | C7—C12—H12A | 109.5 |
C3—C4—H4 | 119.8 | C11—C12—H12B | 109.5 |
C5—C4—H4 | 119.8 | C7—C12—H12B | 109.5 |
C4—C5—C6 | 120.7 (3) | H12A—C12—H12B | 108.1 |
C4—C5—H5 | 119.7 | N1—C13—C14 | 113.53 (17) |
C6—C5—H5 | 119.7 | N1—C13—H13A | 108.9 |
C5—C6—C1 | 119.6 (2) | C14—C13—H13A | 108.9 |
C5—C6—H6 | 120.2 | N1—C13—H13B | 108.9 |
C1—C6—H6 | 120.2 | C14—C13—H13B | 108.9 |
N1—C7—C8 | 111.13 (14) | H13A—C13—H13B | 107.7 |
N1—C7—C12 | 113.91 (15) | C15—C14—C13 | 112.4 (2) |
C8—C7—C12 | 110.00 (15) | C15—C14—H14A | 109.1 |
N1—C7—H7 | 107.2 | C13—C14—H14A | 109.1 |
C8—C7—H7 | 107.2 | C15—C14—H14B | 109.1 |
C12—C7—H7 | 107.2 | C13—C14—H14B | 109.1 |
C9—C8—C7 | 110.68 (16) | H14A—C14—H14B | 107.8 |
C9—C8—H8A | 109.5 | C14—C15—H15A | 109.5 |
C7—C8—H8A | 109.5 | C14—C15—H15B | 109.5 |
C9—C8—H8B | 109.5 | H15A—C15—H15B | 109.5 |
C7—C8—H8B | 109.5 | C14—C15—H15C | 109.5 |
H8A—C8—H8B | 108.1 | H15A—C15—H15C | 109.5 |
C10—C9—C8 | 111.73 (18) | H15B—C15—H15C | 109.5 |
C10—C9—H9A | 109.3 | ||
O1—S1—N1—C13 | −31.31 (16) | C2—C1—C6—C5 | 0.1 (3) |
O2—S1—N1—C13 | −162.01 (14) | S1—C1—C6—C5 | 177.52 (16) |
C1—S1—N1—C13 | 83.73 (14) | C13—N1—C7—C8 | 64.7 (2) |
O1—S1—N1—C7 | 170.12 (13) | S1—N1—C7—C8 | −136.84 (14) |
O2—S1—N1—C7 | 39.42 (16) | C13—N1—C7—C12 | −60.2 (2) |
C1—S1—N1—C7 | −74.84 (15) | S1—N1—C7—C12 | 98.24 (17) |
O1—S1—C1—C6 | 30.33 (18) | N1—C7—C8—C9 | 176.37 (16) |
O2—S1—C1—C6 | 160.00 (15) | C12—C7—C8—C9 | −56.5 (2) |
N1—S1—C1—C6 | −84.70 (16) | C7—C8—C9—C10 | 55.9 (2) |
O1—S1—C1—C2 | −152.24 (16) | C8—C9—C10—C11 | −55.4 (3) |
O2—S1—C1—C2 | −22.57 (18) | C9—C10—C11—C12 | 55.7 (3) |
N1—S1—C1—C2 | 92.73 (17) | C10—C11—C12—C7 | −56.7 (3) |
C6—C1—C2—C3 | 0.5 (3) | N1—C7—C12—C11 | −177.24 (17) |
S1—C1—C2—C3 | −176.93 (17) | C8—C7—C12—C11 | 57.2 (2) |
C1—C2—C3—C4 | −0.6 (4) | C7—N1—C13—C14 | −103.9 (2) |
C2—C3—C4—C5 | 0.1 (4) | S1—N1—C13—C14 | 97.55 (19) |
C3—C4—C5—C6 | 0.5 (4) | N1—C13—C14—C15 | 177.0 (2) |
C4—C5—C6—C1 | −0.6 (3) |
Experimental details
Crystal data | |
Chemical formula | C15H23NO2S |
Mr | 281.40 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 296 |
a, b, c (Å) | 8.5532 (3), 11.6877 (4), 15.4410 (5) |
β (°) | 90.649 (2) |
V (Å3) | 1543.50 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.21 |
Crystal size (mm) | 0.42 × 0.31 × 0.25 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2007) |
Tmin, Tmax | 0.918, 0.950 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17345, 3839, 2475 |
Rint | 0.041 |
(sin θ/λ)max (Å−1) | 0.667 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.141, 1.03 |
No. of reflections | 3839 |
No. of parameters | 173 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.29, −0.21 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009) and Mercury (Macrae et al., 2006), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Acknowledgements
The authors are grateful to the Higher Education Commission of Pakistan for the financial support to purchase the diffractometer.
References
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Sulfonamides are well known for their enormous potential as biologically active molecules (Rough et al., 1998). They are being used as anti-microbial (Kayser et al., 2004), anti-convulsant (Arshad et al., 2008), anti-cancer (La Roche & Co, 1967) agents and for the treatment of inflammatory rheumatic and non-rheumatic processes including onsets and traumatologic lesions (Gennarti et al., 1994). In the present paper, the structure of N-cyclohexyl-N-propyl benzene sulfonamide has been determined as part of a research program involving the synthesis and biological evaluation of sulfur containing heterocyclic compounds (Zia-ur-Rehman et al., 2006, 2009; Khan et al., 2009). In the molecule of (I) (Scheme 1; Fig. 1), bond lengths and bond angles are almost similar to those in the related molecules (Gowda et al., 2007a,b,c) and are within normal ranges (Allen et al., 1987). The benzene ring is essentially planar while cyclohexane ring is in chair form. No significant hydrogen bond interactions are observed in the title molecule. The dihedral angle between the phenyl and cyclohexane rings is 50.13 (9)%.