organic compounds
N-(2-Chlorophenylsulfonyl)-2-methylpropanamide
aDepartment of Chemistry, Mangalore University, Mangalagangotri 574 199, Mangalore, India, and bInstitute of Materials Science, Darmstadt University of Technology, Petersenstrasse 23, D-64287 Darmstadt, Germany
*Correspondence e-mail: gowdabt@yahoo.com
In the title compound, C10H12ClNO3S, the amide H atom is syn with respect to the ortho-chloro group in the benzene ring and the C—S—N—C torsion angle is 64.35 (16)°. The benzene ring and the SO2—NH—CO—C segment form a dihedral angle of 87.4 (1)°. The features inversion-related dimers linked by pairs of N—H⋯O hydrogen bonds.
Related literature
For the sulfanilamide moiety in sulfonamide drugs, see; Maren (1976). For its ability to form hydrogen bonds in the solid state, see; Yang & Guillory (1972). For the hydrogen-bonding characteristics of see; Adsmond & Grant (2001). For the effect of substituents on the crystal structures of sulfonoamides, see: Gowda et al. (2008, 2009, 2010)
Experimental
Crystal data
|
Refinement
|
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536811004284/ds2091sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811004284/ds2091Isup2.hkl
The title compound was prepared by refluxing 2-chlorobenzenesulfonamide (0.10 mole) with an excess of 2,2-dimethylacetyl chloride (0.20 mole) for one hour on a water bath. The reaction mixture was cooled and poured into ice cold water. The resulting solid was separated, washed thoroughly with water and dissolved in warm dilute sodium hydrogen carbonate solution. The title compound was reprecipitated by acidifying the filtered solution with glacial acetic acid. It was filtered, dried and recrystallized from ethanol. The purity of the compound was checked by determining its melting point. It was further characterized by recording its infrared spectra.
Prism like colorless single crystals of the title compound used in X-ray diffraction studies were obtained from a slow evaporation of an ethanolic solution of the compound.
The H atom of the NH group was located in a difference map and later restrained to the distance N—H = 0.86 (2) Å. The other H atoms were positioned with idealized geometry using a riding model with C—H = 0.93–0.98 Å. All H atoms were refined with isotropic displacement parameters (set to 1.2 times of the Ueq of the parent atom).
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell
CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C10H12ClNO3S | Z = 2 |
Mr = 261.72 | F(000) = 272 |
Triclinic, P1 | Dx = 1.434 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.365 (1) Å | Cell parameters from 2678 reflections |
b = 8.719 (1) Å | θ = 3.0–27.7° |
c = 9.143 (1) Å | µ = 0.48 mm−1 |
α = 92.74 (1)° | T = 293 K |
β = 104.22 (1)° | Prism, colourless |
γ = 108.75 (1)° | 0.45 × 0.35 × 0.35 mm |
V = 606.24 (12) Å3 |
Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector | 2481 independent reflections |
Radiation source: fine-focus sealed tube | 2200 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.011 |
Rotation method data acquisition using ω scans | θmax = 26.4°, θmin = 3.0° |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | h = −10→10 |
Tmin = 0.814, Tmax = 0.851 | k = −10→9 |
4031 measured reflections | l = −11→11 |
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)] = 0.036 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.102 | w = 1/[σ2(Fo2) + (0.0589P)2 + 0.1796P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max < 0.001 |
2481 reflections | Δρmax = 0.39 e Å−3 |
149 parameters | Δρmin = −0.27 e Å−3 |
1 restraint | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.074 (7) |
C10H12ClNO3S | γ = 108.75 (1)° |
Mr = 261.72 | V = 606.24 (12) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.365 (1) Å | Mo Kα radiation |
b = 8.719 (1) Å | µ = 0.48 mm−1 |
c = 9.143 (1) Å | T = 293 K |
α = 92.74 (1)° | 0.45 × 0.35 × 0.35 mm |
β = 104.22 (1)° |
Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector | 2481 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | 2200 reflections with I > 2σ(I) |
Tmin = 0.814, Tmax = 0.851 | Rint = 0.011 |
4031 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 1 restraint |
wR(F2) = 0.102 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.39 e Å−3 |
2481 reflections | Δρmin = −0.27 e Å−3 |
149 parameters |
Experimental. CrysAlis RED (Oxford Diffraction, 2009) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
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 | 0.8887 (2) | 0.33504 (18) | 0.17180 (18) | 0.0374 (3) | |
C2 | 0.9618 (2) | 0.2693 (2) | 0.07502 (19) | 0.0455 (4) | |
C3 | 1.1391 (3) | 0.3366 (3) | 0.0881 (2) | 0.0571 (5) | |
H3 | 1.1882 | 0.2924 | 0.0234 | 0.069* | |
C4 | 1.2436 (3) | 0.4688 (3) | 0.1967 (3) | 0.0581 (5) | |
H4 | 1.3630 | 0.5137 | 0.2051 | 0.070* | |
C5 | 1.1725 (3) | 0.5347 (2) | 0.2926 (2) | 0.0546 (5) | |
H5 | 1.2436 | 0.6243 | 0.3656 | 0.065* | |
C6 | 0.9956 (2) | 0.4682 (2) | 0.2808 (2) | 0.0441 (4) | |
H6 | 0.9477 | 0.5128 | 0.3462 | 0.053* | |
C7 | 0.7107 (2) | 0.0482 (2) | 0.36475 (18) | 0.0397 (4) | |
C8 | 0.6623 (2) | −0.1303 (2) | 0.3835 (2) | 0.0481 (4) | |
H8 | 0.5375 | −0.1848 | 0.3306 | 0.058* | |
C9 | 0.6889 (5) | −0.1514 (4) | 0.5501 (3) | 0.0922 (9) | |
H9A | 0.6168 | −0.1053 | 0.5915 | 0.111* | |
H9B | 0.8101 | −0.0965 | 0.6046 | 0.111* | |
H9C | 0.6566 | −0.2657 | 0.5599 | 0.111* | |
C10 | 0.7668 (3) | −0.2058 (3) | 0.3089 (3) | 0.0720 (6) | |
H10A | 0.8900 | −0.1503 | 0.3556 | 0.086* | |
H10B | 0.7401 | −0.1958 | 0.2023 | 0.086* | |
H10C | 0.7368 | −0.3194 | 0.3215 | 0.086* | |
Cl1 | 0.83725 (8) | 0.10188 (7) | −0.06290 (7) | 0.0749 (2) | |
N1 | 0.63339 (19) | 0.07529 (16) | 0.22009 (16) | 0.0418 (3) | |
H1N | 0.578 (3) | −0.005 (2) | 0.150 (2) | 0.050* | |
O1 | 0.55713 (17) | 0.22202 (16) | 0.00990 (15) | 0.0571 (4) | |
O2 | 0.63345 (17) | 0.36011 (15) | 0.27093 (17) | 0.0567 (4) | |
O3 | 0.8089 (2) | 0.16099 (17) | 0.46098 (15) | 0.0609 (4) | |
S1 | 0.66390 (5) | 0.25610 (5) | 0.16468 (5) | 0.04147 (16) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0413 (8) | 0.0280 (7) | 0.0386 (8) | 0.0104 (6) | 0.0055 (6) | 0.0046 (6) |
C2 | 0.0544 (10) | 0.0359 (8) | 0.0409 (8) | 0.0119 (7) | 0.0098 (7) | −0.0009 (7) |
C3 | 0.0622 (12) | 0.0528 (11) | 0.0604 (11) | 0.0176 (9) | 0.0277 (10) | 0.0037 (9) |
C4 | 0.0452 (10) | 0.0501 (11) | 0.0717 (13) | 0.0050 (8) | 0.0189 (9) | 0.0054 (9) |
C5 | 0.0481 (10) | 0.0384 (9) | 0.0610 (11) | 0.0013 (8) | 0.0072 (8) | −0.0068 (8) |
C6 | 0.0469 (9) | 0.0341 (8) | 0.0452 (9) | 0.0108 (7) | 0.0077 (7) | −0.0024 (7) |
C7 | 0.0393 (8) | 0.0378 (8) | 0.0400 (8) | 0.0126 (7) | 0.0090 (7) | 0.0020 (6) |
C8 | 0.0424 (9) | 0.0400 (9) | 0.0549 (10) | 0.0088 (7) | 0.0070 (8) | 0.0130 (8) |
C9 | 0.118 (2) | 0.0910 (19) | 0.0757 (17) | 0.0331 (18) | 0.0383 (16) | 0.0458 (15) |
C10 | 0.0806 (16) | 0.0527 (12) | 0.0824 (16) | 0.0358 (12) | 0.0069 (12) | −0.0016 (11) |
Cl1 | 0.0767 (4) | 0.0630 (4) | 0.0670 (4) | 0.0134 (3) | 0.0098 (3) | −0.0306 (3) |
N1 | 0.0444 (8) | 0.0286 (7) | 0.0412 (7) | 0.0055 (6) | 0.0017 (6) | 0.0008 (5) |
O1 | 0.0500 (7) | 0.0446 (7) | 0.0586 (8) | 0.0094 (6) | −0.0090 (6) | 0.0123 (6) |
O2 | 0.0506 (7) | 0.0399 (7) | 0.0824 (10) | 0.0184 (6) | 0.0210 (7) | 0.0004 (6) |
O3 | 0.0738 (9) | 0.0465 (7) | 0.0459 (7) | 0.0160 (7) | −0.0040 (6) | −0.0078 (6) |
S1 | 0.0381 (2) | 0.0302 (2) | 0.0493 (3) | 0.01005 (16) | 0.00256 (17) | 0.00424 (17) |
C1—C6 | 1.387 (2) | C7—C8 | 1.507 (2) |
C1—C2 | 1.389 (2) | C8—C10 | 1.511 (3) |
C1—S1 | 1.7659 (17) | C8—C9 | 1.514 (3) |
C2—C3 | 1.380 (3) | C8—H8 | 0.9800 |
C2—Cl1 | 1.7344 (18) | C9—H9A | 0.9600 |
C3—C4 | 1.377 (3) | C9—H9B | 0.9600 |
C3—H3 | 0.9300 | C9—H9C | 0.9600 |
C4—C5 | 1.371 (3) | C10—H10A | 0.9600 |
C4—H4 | 0.9300 | C10—H10B | 0.9600 |
C5—C6 | 1.379 (3) | C10—H10C | 0.9600 |
C5—H5 | 0.9300 | N1—S1 | 1.6396 (14) |
C6—H6 | 0.9300 | N1—H1N | 0.843 (15) |
C7—O3 | 1.208 (2) | O1—S1 | 1.4341 (13) |
C7—N1 | 1.390 (2) | O2—S1 | 1.4202 (14) |
C6—C1—C2 | 119.32 (16) | C7—C8—H8 | 108.1 |
C6—C1—S1 | 117.57 (13) | C10—C8—H8 | 108.1 |
C2—C1—S1 | 123.11 (13) | C9—C8—H8 | 108.1 |
C3—C2—C1 | 119.91 (16) | C8—C9—H9A | 109.5 |
C3—C2—Cl1 | 118.08 (14) | C8—C9—H9B | 109.5 |
C1—C2—Cl1 | 122.01 (14) | H9A—C9—H9B | 109.5 |
C4—C3—C2 | 120.17 (18) | C8—C9—H9C | 109.5 |
C4—C3—H3 | 119.9 | H9A—C9—H9C | 109.5 |
C2—C3—H3 | 119.9 | H9B—C9—H9C | 109.5 |
C5—C4—C3 | 120.34 (18) | C8—C10—H10A | 109.5 |
C5—C4—H4 | 119.8 | C8—C10—H10B | 109.5 |
C3—C4—H4 | 119.8 | H10A—C10—H10B | 109.5 |
C4—C5—C6 | 119.98 (17) | C8—C10—H10C | 109.5 |
C4—C5—H5 | 120.0 | H10A—C10—H10C | 109.5 |
C6—C5—H5 | 120.0 | H10B—C10—H10C | 109.5 |
C5—C6—C1 | 120.28 (17) | C7—N1—S1 | 124.59 (11) |
C5—C6—H6 | 119.9 | C7—N1—H1N | 119.7 (15) |
C1—C6—H6 | 119.9 | S1—N1—H1N | 115.1 (14) |
O3—C7—N1 | 120.87 (16) | O2—S1—O1 | 118.79 (9) |
O3—C7—C8 | 125.77 (16) | O2—S1—N1 | 109.66 (8) |
N1—C7—C8 | 113.34 (14) | O1—S1—N1 | 104.14 (8) |
C7—C8—C10 | 109.40 (16) | O2—S1—C1 | 107.71 (8) |
C7—C8—C9 | 110.55 (18) | O1—S1—C1 | 110.42 (8) |
C10—C8—C9 | 112.5 (2) | N1—S1—C1 | 105.30 (8) |
C6—C1—C2—C3 | 0.1 (3) | O3—C7—C8—C9 | 23.2 (3) |
S1—C1—C2—C3 | −179.39 (15) | N1—C7—C8—C9 | −158.19 (19) |
C6—C1—C2—Cl1 | 179.41 (13) | O3—C7—N1—S1 | −0.2 (2) |
S1—C1—C2—Cl1 | 0.0 (2) | C8—C7—N1—S1 | −178.89 (12) |
C1—C2—C3—C4 | −0.1 (3) | C7—N1—S1—O2 | −51.29 (16) |
Cl1—C2—C3—C4 | −179.50 (16) | C7—N1—S1—O1 | −179.42 (14) |
C2—C3—C4—C5 | 0.0 (3) | C7—N1—S1—C1 | 64.35 (16) |
C3—C4—C5—C6 | 0.2 (3) | C6—C1—S1—O2 | 4.95 (16) |
C4—C5—C6—C1 | −0.3 (3) | C2—C1—S1—O2 | −175.59 (14) |
C2—C1—C6—C5 | 0.1 (3) | C6—C1—S1—O1 | 136.13 (13) |
S1—C1—C6—C5 | 179.61 (14) | C2—C1—S1—O1 | −44.41 (16) |
O3—C7—C8—C10 | −101.1 (2) | C6—C1—S1—N1 | −112.02 (14) |
N1—C7—C8—C10 | 77.45 (19) | C2—C1—S1—N1 | 67.44 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.84 (2) | 2.14 (2) | 2.976 (2) | 174 (2) |
Symmetry code: (i) −x+1, −y, −z. |
Experimental details
Crystal data | |
Chemical formula | C10H12ClNO3S |
Mr | 261.72 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 8.365 (1), 8.719 (1), 9.143 (1) |
α, β, γ (°) | 92.74 (1), 104.22 (1), 108.75 (1) |
V (Å3) | 606.24 (12) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.48 |
Crystal size (mm) | 0.45 × 0.35 × 0.35 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer with a Sapphire CCD detector |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.814, 0.851 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4031, 2481, 2200 |
Rint | 0.011 |
(sin θ/λ)max (Å−1) | 0.625 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.102, 1.04 |
No. of reflections | 2481 |
No. of parameters | 149 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.39, −0.27 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2009), CrysAlis RED (Oxford Diffraction, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O1i | 0.843 (15) | 2.136 (16) | 2.976 (2) | 174 (2) |
Symmetry code: (i) −x+1, −y, −z. |
Acknowledgements
KS thanks the University Grants Commission, Government of India, New Delhi, for the award of a research fellowship under its faculty improvement program.
References
Adsmond, D. A. & Grant, D. J. W. (2001). J. Pharm. Sci. 90, 2058–2077. Web of Science CrossRef PubMed CAS Google Scholar
Gowda, B. T., Foro, S., Nirmala, P. G. & Fuess, H. (2009). Acta Cryst. E65, o2680. Web of Science CrossRef IUCr Journals Google Scholar
Gowda, B. T., Foro, S., Nirmala, P. G. & Fuess, H. (2010). Acta Cryst. E66, o1284. Web of Science CSD CrossRef IUCr Journals Google Scholar
Gowda, B. T., Foro, S., Nirmala, P. G., Sowmya, B. P. & Fuess, H. (2008). Acta Cryst. E64, o1522. Web of Science CSD CrossRef IUCr Journals Google Scholar
Maren, T. H. (1976). Annu. Rev. Pharmacol Toxicol. 16, 309–327. CrossRef CAS PubMed Web of Science Google Scholar
Oxford Diffraction (2009). CrysAlis CCD and CrysAlis RED. Oxford Diffraction Ltd, Yarnton, England. 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
Yang, S. S. & Guillory, J. K. (1972). J. Pharm. Sci. 61, 26–40. CrossRef CAS PubMed Web of Science 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 molecular structures of sulfonamide drugs contain the sulfanilamide moiety (Maren, 1976). The affinity for hydrogen bonding in the solid state due to the presence of various hydrogen bond donors and acceptors can give rise to polymorphism (Yang & Guillory, 1972). The hydrogen bonding preferences of sulfonamides has also been investigated (Adsmond & Grant, 2001). The nature and position of substituents play a significant role on the crystal structures of N-(aryl)sulfonoamides (Gowda et al., 2008, 2009, 2010). As a part of studying the substituent effects on the structures of this class of compounds, the structure of N-(2-chlorophenylsulfonyl)-2,2-dimethylacetamide (I) has been determined. The conformations of the N—H and C=O bonds of the SO2—NH—CO—C segment in the structure are anti to each other (Fig. 1), similar to that observed in N-(phenylsulfonyl)-acetamide (II) (Gowda et al., 2010), 2,2-dimethyl-N-(phenylsulfonyl)- acetamide (III)(Gowda et al., 2009) and 2,2-dichloro-N- (phenylsulfonyl)-acetamide (IV) (Gowda et al., 2008).
The molecule in (I) is bent at the S-atom with a C1—S1—N1—C7 torsion angle of 64.4 (2)°, compared to the values of -58.8 (4)° in (II), 67.1 (3)° in (III) and -66.3 (3)° in (IV). Further, the dihedral angle between the benzene ring and the SO2—NH—CO—C group in (I) is 87.4 (1)°, compared to the values of 89.0 (2)° in (II), 87.4 (1)° in (III) and 79.8 (1)° in (IV),
In the crystal structure, the intermolecular N–H···O hydrogen bonds (Table 1) link the molecules through inversion-related dimers into zigzag chains in the bc-plane. Part of the crystal structure is shown in Fig. 2.