organic compounds
(2-Chlorophenyl)(4-hydroxy-1,1-dioxo-2H-1,2-benzothiazin-3-yl)methanone
aInstitute of Chemistry, University of the Punjab, Lahore 54590, Pakistan, bChemistry Department, Govt. College University, Faisalabad, Pakistan, cChemistry Department, University of Sargodha, Sargodha 40100, Pakistan, and dDepartment of Chemistry, The University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4
*Correspondence e-mail: drhamidlatif@hotmail.com
In the title molecule, C15H10ClNO4S, the heterocyclic thiazine ring adopts a half-chair conformation, with the S and N atoms displaced by 0.527 (7) and 0.216 (7) Å, respectively, on opposite sides of the mean plane formed by the remaining ring atoms. The molecular structure is consolidated by an intramolecular O—H⋯O interaction and the crystal packing is stabilized by N—H⋯O and C—H⋯O hydrogen bonds.
Related literature
For background information on the synthesis of related compounds, see: Siddiqui et al. (2007). For the biological activity of 1,2-benzothiazine derivatives, see: Ikeda et al. (1992); Lombardino et al. (1973); Gupta et al. (2002); Zia-ur-Rehman et al. (2006); Ahmad et al. (2010). For bromo analogue of the title compound, see: Sattar et al. (2012).
Experimental
Crystal data
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Refinement
|
Data collection: COLLECT (Hooft, 1998); cell DENZO (Otwinowski & Minor, 1997); data reduction: SCALEPACK (Otwinowski & Minor, 1997); 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); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536812014171/zj2065sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812014171/zj2065Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812014171/zj2065Isup3.cml
A mixture of 2-[2-(o-chlorophenyl)-2-oxoethyl]-1,2-benzisothiazol-3(2H)-one 1,1-dioxide (10.1 g, 30 mmol) and sodium methoxide (2.2 g, 40.0 mmol) in freshly dried methanol (25 ml) was subjected to reflux for 30 minutes. The reaction was quenched with ice-cold water and acidified to pH = 3 with dilute HCl. The precipitates were filtered, washed with water and ethanol (25 ml, each) to get yellow powder of the title compound (9.4 g, 70%). The crystals suitable for X-ray crystallographic analysis were grown from a mixture of solvents chloroform and methanol (2:1) by slow evaporation at room temperature.
The H atoms bonded to C and O atoms were positioned geometrically and refined using a riding model, with O—H and C—H = 0.84 and 0.95 Å, respectively. The amino H-atom was allowed to refine freely. The Uiso(H) were allowed at 1.2Ueq(parent atom).
Data collection: COLLECT (Hooft, 1998); cell
DENZO (Otwinowski & Minor, 1997); data reduction: SCALEPACK (Otwinowski & Minor, 1997); 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); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C15H10ClNO4S | F(000) = 688 |
Mr = 335.75 | Dx = 1.547 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2930 reflections |
a = 12.1078 (6) Å | θ = 1.0–27.5° |
b = 8.4057 (5) Å | µ = 0.43 mm−1 |
c = 14.7022 (9) Å | T = 173 K |
β = 105.541 (3)° | Prism, pale yellow |
V = 1441.60 (14) Å3 | 0.12 × 0.10 × 0.06 mm |
Z = 4 |
Nonius KappaCCD diffractometer | 3204 independent reflections |
Radiation source: fine-focus sealed tube | 2383 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
ω and ϕ scans | θmax = 27.5°, θmin = 2.9° |
Absorption correction: multi-scan (SORTAV; Blessing, 1997) | h = −15→15 |
Tmin = 0.951, Tmax = 0.975 | k = −10→10 |
5606 measured reflections | l = −19→19 |
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)] = 0.068 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.138 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.12 | w = 1/[σ2(Fo2) + 4.364P] where P = (Fo2 + 2Fc2)/3 |
3204 reflections | (Δ/σ)max < 0.001 |
203 parameters | Δρmax = 0.36 e Å−3 |
0 restraints | Δρmin = −0.36 e Å−3 |
C15H10ClNO4S | V = 1441.60 (14) Å3 |
Mr = 335.75 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 12.1078 (6) Å | µ = 0.43 mm−1 |
b = 8.4057 (5) Å | T = 173 K |
c = 14.7022 (9) Å | 0.12 × 0.10 × 0.06 mm |
β = 105.541 (3)° |
Nonius KappaCCD diffractometer | 3204 independent reflections |
Absorption correction: multi-scan (SORTAV; Blessing, 1997) | 2383 reflections with I > 2σ(I) |
Tmin = 0.951, Tmax = 0.975 | Rint = 0.051 |
5606 measured reflections |
R[F2 > 2σ(F2)] = 0.068 | 0 restraints |
wR(F2) = 0.138 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.12 | Δρmax = 0.36 e Å−3 |
3204 reflections | Δρmin = −0.36 e Å−3 |
203 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 | ||
Cl1 | 0.71096 (9) | 0.38782 (15) | 0.83022 (8) | 0.0469 (3) | |
S1 | 0.18808 (7) | 0.39935 (12) | 0.60671 (6) | 0.0281 (2) | |
O1 | 0.1528 (2) | 0.2392 (3) | 0.58127 (18) | 0.0358 (7) | |
O2 | 0.1631 (2) | 0.5208 (4) | 0.53640 (19) | 0.0396 (7) | |
O3 | 0.3300 (2) | 0.2131 (3) | 0.88114 (18) | 0.0340 (6) | |
H3O | 0.3920 | 0.1661 | 0.8837 | 0.041* | |
O4 | 0.5099 (2) | 0.1471 (3) | 0.83156 (18) | 0.0341 (6) | |
N1 | 0.3252 (2) | 0.3988 (4) | 0.6544 (2) | 0.0278 (7) | |
H1N | 0.358 (3) | 0.487 (5) | 0.655 (3) | 0.033* | |
C1 | 0.1348 (3) | 0.4509 (5) | 0.7026 (3) | 0.0273 (8) | |
C2 | 0.0344 (3) | 0.5377 (5) | 0.6909 (3) | 0.0386 (10) | |
H2 | −0.0038 | 0.5812 | 0.6312 | 0.046* | |
C3 | −0.0087 (4) | 0.5595 (5) | 0.7679 (3) | 0.0411 (10) | |
H3 | −0.0778 | 0.6179 | 0.7605 | 0.049* | |
C4 | 0.0460 (3) | 0.4985 (5) | 0.8555 (3) | 0.0386 (10) | |
H4 | 0.0147 | 0.5155 | 0.9074 | 0.046* | |
C5 | 0.1461 (3) | 0.4128 (5) | 0.8679 (3) | 0.0318 (8) | |
H5 | 0.1832 | 0.3699 | 0.9281 | 0.038* | |
C6 | 0.1931 (3) | 0.3892 (4) | 0.7913 (2) | 0.0249 (7) | |
C7 | 0.3004 (3) | 0.3016 (4) | 0.8035 (2) | 0.0253 (7) | |
C8 | 0.3659 (3) | 0.3096 (4) | 0.7403 (2) | 0.0250 (7) | |
C9 | 0.4744 (3) | 0.2291 (5) | 0.7586 (3) | 0.0284 (8) | |
C10 | 0.5468 (3) | 0.2430 (4) | 0.6910 (3) | 0.0265 (8) | |
C11 | 0.6580 (3) | 0.3042 (5) | 0.7190 (3) | 0.0300 (8) | |
C12 | 0.7263 (4) | 0.3083 (5) | 0.6570 (3) | 0.0406 (10) | |
H12 | 0.8011 | 0.3525 | 0.6765 | 0.049* | |
C13 | 0.6856 (4) | 0.2483 (5) | 0.5672 (3) | 0.0406 (10) | |
H13 | 0.7326 | 0.2502 | 0.5248 | 0.049* | |
C14 | 0.5764 (4) | 0.1854 (5) | 0.5387 (3) | 0.0391 (10) | |
H14 | 0.5490 | 0.1417 | 0.4772 | 0.047* | |
C15 | 0.5063 (3) | 0.1858 (5) | 0.5996 (3) | 0.0349 (9) | |
H15 | 0.4301 | 0.1465 | 0.5785 | 0.042* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0364 (5) | 0.0581 (7) | 0.0450 (6) | −0.0087 (5) | 0.0087 (4) | −0.0126 (5) |
S1 | 0.0242 (4) | 0.0341 (5) | 0.0262 (4) | −0.0017 (4) | 0.0072 (3) | 0.0021 (4) |
O1 | 0.0359 (14) | 0.0401 (16) | 0.0324 (14) | −0.0094 (13) | 0.0109 (11) | −0.0065 (13) |
O2 | 0.0331 (14) | 0.0514 (19) | 0.0334 (15) | 0.0028 (14) | 0.0073 (12) | 0.0157 (14) |
O3 | 0.0298 (14) | 0.0426 (17) | 0.0314 (14) | 0.0113 (13) | 0.0112 (11) | 0.0104 (13) |
O4 | 0.0292 (13) | 0.0410 (17) | 0.0329 (14) | 0.0093 (12) | 0.0096 (11) | 0.0062 (13) |
N1 | 0.0233 (15) | 0.0292 (17) | 0.0328 (17) | −0.0023 (14) | 0.0106 (13) | 0.0036 (14) |
C1 | 0.0260 (17) | 0.028 (2) | 0.0296 (18) | −0.0022 (15) | 0.0096 (14) | 0.0008 (16) |
C2 | 0.032 (2) | 0.042 (2) | 0.041 (2) | 0.0089 (19) | 0.0087 (17) | 0.007 (2) |
C3 | 0.034 (2) | 0.039 (2) | 0.054 (3) | 0.0106 (19) | 0.0177 (19) | 0.000 (2) |
C4 | 0.037 (2) | 0.043 (2) | 0.044 (2) | 0.0059 (19) | 0.0248 (19) | 0.000 (2) |
C5 | 0.0342 (19) | 0.035 (2) | 0.0291 (19) | 0.0018 (18) | 0.0140 (16) | 0.0007 (17) |
C6 | 0.0235 (16) | 0.0253 (18) | 0.0263 (17) | −0.0032 (15) | 0.0075 (14) | −0.0001 (15) |
C7 | 0.0248 (17) | 0.0252 (19) | 0.0257 (17) | 0.0006 (15) | 0.0067 (14) | 0.0005 (15) |
C8 | 0.0217 (16) | 0.0281 (19) | 0.0254 (17) | −0.0016 (15) | 0.0063 (13) | 0.0006 (15) |
C9 | 0.0262 (18) | 0.031 (2) | 0.0279 (18) | −0.0024 (16) | 0.0077 (14) | −0.0055 (16) |
C10 | 0.0248 (17) | 0.0269 (19) | 0.0306 (18) | 0.0054 (15) | 0.0124 (14) | 0.0016 (15) |
C11 | 0.0272 (18) | 0.027 (2) | 0.037 (2) | 0.0015 (16) | 0.0111 (16) | 0.0030 (16) |
C12 | 0.033 (2) | 0.039 (2) | 0.055 (3) | 0.0013 (19) | 0.021 (2) | 0.004 (2) |
C13 | 0.047 (2) | 0.040 (2) | 0.043 (2) | 0.008 (2) | 0.027 (2) | 0.008 (2) |
C14 | 0.041 (2) | 0.044 (3) | 0.034 (2) | 0.007 (2) | 0.0143 (18) | 0.0022 (19) |
C15 | 0.031 (2) | 0.042 (2) | 0.033 (2) | 0.0027 (18) | 0.0104 (16) | 0.0012 (18) |
Cl1—C11 | 1.737 (4) | C4—H4 | 0.9500 |
S1—O2 | 1.427 (3) | C5—C6 | 1.404 (5) |
S1—O1 | 1.431 (3) | C5—H5 | 0.9500 |
S1—N1 | 1.620 (3) | C6—C7 | 1.462 (5) |
S1—C1 | 1.755 (4) | C7—C8 | 1.376 (5) |
O3—C7 | 1.329 (4) | C8—C9 | 1.438 (5) |
O3—H3O | 0.8400 | C9—C10 | 1.497 (5) |
O4—C9 | 1.250 (4) | C10—C15 | 1.387 (5) |
N1—C8 | 1.437 (5) | C10—C11 | 1.395 (5) |
N1—H1N | 0.84 (4) | C11—C12 | 1.386 (5) |
C1—C2 | 1.388 (5) | C12—C13 | 1.375 (6) |
C1—C6 | 1.405 (5) | C12—H12 | 0.9500 |
C2—C3 | 1.380 (6) | C13—C14 | 1.381 (6) |
C2—H2 | 0.9500 | C13—H13 | 0.9500 |
C3—C4 | 1.379 (6) | C14—C15 | 1.388 (5) |
C3—H3 | 0.9500 | C14—H14 | 0.9500 |
C4—C5 | 1.379 (5) | C15—H15 | 0.9500 |
O2—S1—O1 | 119.57 (18) | O3—C7—C8 | 122.4 (3) |
O2—S1—N1 | 108.01 (17) | O3—C7—C6 | 114.4 (3) |
O1—S1—N1 | 108.05 (18) | C8—C7—C6 | 123.2 (3) |
O2—S1—C1 | 110.69 (18) | C7—C8—N1 | 119.7 (3) |
O1—S1—C1 | 107.08 (17) | C7—C8—C9 | 120.9 (3) |
N1—S1—C1 | 102.01 (17) | N1—C8—C9 | 119.4 (3) |
C7—O3—H3O | 109.5 | O4—C9—C8 | 120.5 (3) |
C8—N1—S1 | 116.8 (2) | O4—C9—C10 | 119.1 (3) |
C8—N1—H1N | 114 (3) | C8—C9—C10 | 120.4 (3) |
S1—N1—H1N | 115 (3) | C15—C10—C11 | 118.5 (3) |
C2—C1—C6 | 121.0 (3) | C15—C10—C9 | 119.9 (3) |
C2—C1—S1 | 121.9 (3) | C11—C10—C9 | 121.5 (3) |
C6—C1—S1 | 116.9 (3) | C12—C11—C10 | 120.9 (4) |
C3—C2—C1 | 118.6 (4) | C12—C11—Cl1 | 118.3 (3) |
C3—C2—H2 | 120.7 | C10—C11—Cl1 | 120.7 (3) |
C1—C2—H2 | 120.7 | C13—C12—C11 | 119.9 (4) |
C4—C3—C2 | 121.5 (4) | C13—C12—H12 | 120.0 |
C4—C3—H3 | 119.2 | C11—C12—H12 | 120.0 |
C2—C3—H3 | 119.2 | C12—C13—C14 | 120.0 (4) |
C5—C4—C3 | 120.2 (4) | C12—C13—H13 | 120.0 |
C5—C4—H4 | 119.9 | C14—C13—H13 | 120.0 |
C3—C4—H4 | 119.9 | C13—C14—C15 | 120.3 (4) |
C4—C5—C6 | 119.9 (4) | C13—C14—H14 | 119.9 |
C4—C5—H5 | 120.0 | C15—C14—H14 | 119.9 |
C6—C5—H5 | 120.0 | C10—C15—C14 | 120.4 (4) |
C5—C6—C1 | 118.7 (3) | C10—C15—H15 | 119.8 |
C5—C6—C7 | 120.8 (3) | C14—C15—H15 | 119.8 |
C1—C6—C7 | 120.5 (3) | ||
O2—S1—N1—C8 | 166.9 (3) | C6—C7—C8—N1 | −4.5 (6) |
O1—S1—N1—C8 | −62.4 (3) | O3—C7—C8—C9 | −3.8 (6) |
C1—S1—N1—C8 | 50.2 (3) | C6—C7—C8—C9 | 175.9 (3) |
O2—S1—C1—C2 | 33.6 (4) | S1—N1—C8—C7 | −34.2 (5) |
O1—S1—C1—C2 | −98.3 (4) | S1—N1—C8—C9 | 145.4 (3) |
N1—S1—C1—C2 | 148.3 (3) | C7—C8—C9—O4 | 1.7 (6) |
O2—S1—C1—C6 | −151.4 (3) | N1—C8—C9—O4 | −177.9 (3) |
O1—S1—C1—C6 | 76.7 (3) | C7—C8—C9—C10 | −178.0 (3) |
N1—S1—C1—C6 | −36.7 (3) | N1—C8—C9—C10 | 2.4 (5) |
C6—C1—C2—C3 | −1.5 (6) | O4—C9—C10—C15 | 117.4 (4) |
S1—C1—C2—C3 | 173.3 (3) | C8—C9—C10—C15 | −63.0 (5) |
C1—C2—C3—C4 | 0.6 (7) | O4—C9—C10—C11 | −58.7 (5) |
C2—C3—C4—C5 | −0.2 (7) | C8—C9—C10—C11 | 120.9 (4) |
C3—C4—C5—C6 | 0.7 (6) | C15—C10—C11—C12 | 0.3 (6) |
C4—C5—C6—C1 | −1.6 (6) | C9—C10—C11—C12 | 176.4 (4) |
C4—C5—C6—C7 | 178.7 (4) | C15—C10—C11—Cl1 | 176.4 (3) |
C2—C1—C6—C5 | 2.0 (6) | C9—C10—C11—Cl1 | −7.5 (5) |
S1—C1—C6—C5 | −173.0 (3) | C10—C11—C12—C13 | −1.5 (6) |
C2—C1—C6—C7 | −178.4 (4) | Cl1—C11—C12—C13 | −177.7 (3) |
S1—C1—C6—C7 | 6.6 (5) | C11—C12—C13—C14 | 0.6 (7) |
C5—C6—C7—O3 | 17.5 (5) | C12—C13—C14—C15 | 1.5 (7) |
C1—C6—C7—O3 | −162.2 (3) | C11—C10—C15—C14 | 1.8 (6) |
C5—C6—C7—C8 | −162.3 (4) | C9—C10—C15—C14 | −174.4 (4) |
C1—C6—C7—C8 | 18.0 (6) | C13—C14—C15—C10 | −2.7 (6) |
O3—C7—C8—N1 | 175.7 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O4i | 0.84 (4) | 2.06 (4) | 2.857 (4) | 158 (4) |
C13—H13···O2ii | 0.95 | 2.59 | 3.307 (5) | 132 |
C5—H5···O1iii | 0.95 | 2.55 | 3.369 (5) | 145 |
O3—H3O···O4 | 0.84 | 1.80 | 2.536 (3) | 146 |
Symmetry codes: (i) −x+1, y+1/2, −z+3/2; (ii) −x+1, −y+1, −z+1; (iii) x, −y+1/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C15H10ClNO4S |
Mr | 335.75 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 173 |
a, b, c (Å) | 12.1078 (6), 8.4057 (5), 14.7022 (9) |
β (°) | 105.541 (3) |
V (Å3) | 1441.60 (14) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.43 |
Crystal size (mm) | 0.12 × 0.10 × 0.06 |
Data collection | |
Diffractometer | Nonius KappaCCD diffractometer |
Absorption correction | Multi-scan (SORTAV; Blessing, 1997) |
Tmin, Tmax | 0.951, 0.975 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5606, 3204, 2383 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.068, 0.138, 1.12 |
No. of reflections | 3204 |
No. of parameters | 203 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.36, −0.36 |
Computer programs: COLLECT (Hooft, 1998), DENZO (Otwinowski & Minor, 1997), SCALEPACK (Otwinowski & Minor, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O4i | 0.84 (4) | 2.06 (4) | 2.857 (4) | 158 (4) |
C13—H13···O2ii | 0.95 | 2.59 | 3.307 (5) | 132.3 |
C5—H5···O1iii | 0.95 | 2.55 | 3.369 (5) | 144.7 |
O3—H3O···O4 | 0.84 | 1.80 | 2.536 (3) | 145.5 |
Symmetry codes: (i) −x+1, y+1/2, −z+3/2; (ii) −x+1, −y+1, −z+1; (iii) x, −y+1/2, z+1/2. |
Acknowledgements
The authors are grateful to the Higher Education Commission, Pakistan, and the Institute of Chemistry, University of the Punjab, Lahore, Pakistan, for financial support.
References
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The nucleus 1,2-benzothiazine 1,1-dioxide represents a class of pharmaceutically important heterocyclic compounds that have received considerable attention because of their dynamic structural features and a wide range of biological activities. They are known to be anti-allergy (Ikeda et al., 1992), anti-inflammatory (Lombardino et al., 1973), analgesic (Gupta et al., 2002), anti-bacterial (Zia-ur-Rehman et al., 2006) etc. In continuation of our research on the synthesis of biologically active benzothiazine derivatives (Siddiqui et al., 2007; Ahmad et al., 2010) we report herein the synthesis and crystal structure of the title compound.
The bond distances and angles in the title compound (Fig. 1) agree very well with the corresponding bond distances and angles reported for its bromo analogue with which it is isomorphic (Sattar et al., 2012). The heterocyclic thiazine ring adopts a half chair conformation with atoms N1 and S1 displaced by 0.216 (7) and 0.527 (7) Å, respectively, on the opposite sides from the mean plane formed by the remaining ring atoms. The molecular structure is stabilized by intramolecular interactions O4–H4O···O3 and the crystal packing is consolidated by N1—H1N···O4 and C13—H13···O2 intermolecular hydrogen bonds (Figure 2 and Table 1).