organic compounds
4-Methyl-2-oxo-2H-chromen-7-yl 4-methylbenzenesulfonate
aInstitute of Materials and Chemical Engineering, Hainan University, Haikou 570228, People's Republic of China, bSchool of Chemistry and Chemical Engineering, South China University of Technology, GuangZhou 510640, People's Republic of China, and cInstitute of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, People's Republic of China
*Correspondence e-mail: yangjxmail@sohu.com
In the title compound, C17H14O5S, the coumarin ring system is nearly planar, with a maximum deviation of 0.034 (2) Å from the mean plane. The dihedral angle between the benzene ring and the coumarin ring system is 56.11 (6)°. The crystal packing is stabilized by C—H⋯O hydrogen bonding, which forms a three-dimensional framework.
Related literature
For the biological activity of coumarin derivatives, see: Xie et al. (2001); Tanitame et al. (2004); Shao et al. (1997); Rendenbach-Müller et al. (1994); Pochet et al. (1996). For a related structure, see: Yang et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2008); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXTL and publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536812012238/fy2046sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812012238/fy2046Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812012238/fy2046Isup3.cml
To a mixture of para-toluenesulfonic acid (0.5 g) and acetylacetic ester (10.50 mmol), 4-hydroxyphenyl-4-methylbenzenesulfonate (10.50 mmol) was slowly added at 278–288 K with stirring for 30 min. The reaction mixture was stirred continuously for 12 h at room temperature and then poured into ice–water (100 ml). The solid obtained was filtered off, washed with cold water and dried at room temperature. Colorless crystals of the title compound suitable for X-ray structure analysis were obtained by evaporation of an ethanol solution over a period of two days.
H atoms were placed in calculated positions with C—H = 0.93 Å (aromatic) and 0.96 Å (methyl), and refined in riding mode with Uiso(H) = 1.2 Ueq(C) (aromatic) and Uiso(H) = 1.5 Ueq(C) (methyl).
Coumarin derivatives exhibit a wide variety of pharmacological activities including anti-HIV (Xie et al., 2001), antibacterial (Tanitame et al., 2004), antioxidant (Shao et al., 1997), antithrombotic (Rendenbach-Müller et al., 1994) and antiinflammatory (Pochet et al., 1996) activities.
The molecular structure is shown in Fig. 1. The dihedral angle between the coumarin ring system and the phenyl ring is 56.11 (6)°. The terminal S═O bond distances of 1.4215 (11) and 1.4219 (11) Å agree with 1.4207 (19) and 1.4331 (19) Å found in a related compound, 4-methyl-7-phenylsulfonamido-2H-1-benzopyran-2-one (Yang et al., 2007).
In the crystal the molecules are linked by weak C—H···O hydrogen bonding (Table 1 and Fig. 2).
For the biological activity of coumarin derivatives, see: Xie et al. (2001); Tanitame et al. (2004); Shao et al. (1997); Rendenbach-Müller et al. (1994); Pochet et al. (1996). For a related structure, see: Yang et al. (2007).
Data collection: CrystalClear (Rigaku, 2008); cell
CrystalClear (Rigaku, 2008); data reduction: CrystalClear (Rigaku, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and publCIF (Westrip, 2010).Fig. 1. The molecular structure of the title compound with the atom numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. H atoms are presented as a small spheres of arbitrary radius. | |
Fig. 2. A view of the C—H···O interactions (dotted lines) in the crystal structure of the title compound. |
C17H14O5S | Z = 2 |
Mr = 330.34 | F(000) = 344 |
Triclinic, P1 | Dx = 1.410 Mg m−3 |
a = 7.5582 (19) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 8.024 (2) Å | Cell parameters from 2667 reflections |
c = 13.336 (4) Å | θ = 2.6–30.0° |
α = 88.648 (8)° | µ = 0.23 mm−1 |
β = 87.420 (7)° | T = 153 K |
γ = 74.341 (4)° | Chip, colorless |
V = 777.9 (3) Å3 | 0.54 × 0.41 × 0.40 mm |
Rigaku AFC10/Saturn724+ diffractometer | 4451 independent reflections |
Radiation source: Rotating Anode | 3289 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.037 |
Detector resolution: 28.5714 pixels mm-1 | θmax = 30.0°, θmin = 2.8° |
φ and ω scans | h = −10→10 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −11→10 |
Tmin = 0.885, Tmax = 0.913 | l = −18→17 |
8968 measured reflections |
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)] = 0.042 | H-atom parameters constrained |
wR(F2) = 0.099 | w = 1/[σ2(Fo2) + (0.0315P)2 + 0.119P] where P = (Fo2 + 2Fc2)/3 |
S = 1.00 | (Δ/σ)max < 0.001 |
4451 reflections | Δρmax = 0.30 e Å−3 |
211 parameters | Δρmin = −0.47 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0116 (17) |
C17H14O5S | γ = 74.341 (4)° |
Mr = 330.34 | V = 777.9 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.5582 (19) Å | Mo Kα radiation |
b = 8.024 (2) Å | µ = 0.23 mm−1 |
c = 13.336 (4) Å | T = 153 K |
α = 88.648 (8)° | 0.54 × 0.41 × 0.40 mm |
β = 87.420 (7)° |
Rigaku AFC10/Saturn724+ diffractometer | 4451 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 3289 reflections with I > 2σ(I) |
Tmin = 0.885, Tmax = 0.913 | Rint = 0.037 |
8968 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.099 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.30 e Å−3 |
4451 reflections | Δρmin = −0.47 e Å−3 |
211 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 | −0.05701 (5) | 0.90186 (5) | 0.20148 (3) | 0.02605 (11) | |
O1 | 0.63814 (14) | 0.58774 (12) | 0.35269 (7) | 0.0263 (2) | |
O2 | 0.11089 (15) | 0.98205 (12) | 0.22320 (7) | 0.0270 (2) | |
O3 | 0.88672 (15) | 0.39807 (14) | 0.40502 (9) | 0.0362 (3) | |
O4 | −0.14270 (15) | 0.87024 (14) | 0.29442 (7) | 0.0324 (3) | |
O5 | −0.15830 (17) | 1.02006 (14) | 0.13018 (8) | 0.0384 (3) | |
C1 | 0.7537 (2) | 0.51511 (19) | 0.42877 (12) | 0.0276 (3) | |
C2 | 0.7040 (2) | 0.58301 (19) | 0.52862 (12) | 0.0276 (3) | |
H2 | 0.7814 | 0.5339 | 0.5819 | 0.033* | |
C3 | 0.5524 (2) | 0.71307 (18) | 0.54922 (11) | 0.0240 (3) | |
C4 | 0.43676 (19) | 0.79009 (17) | 0.46707 (10) | 0.0211 (3) | |
C5 | 0.2782 (2) | 0.92868 (17) | 0.47851 (11) | 0.0227 (3) | |
H5 | 0.2448 | 0.9795 | 0.5426 | 0.027* | |
C6 | 0.1701 (2) | 0.99233 (17) | 0.39833 (10) | 0.0237 (3) | |
H6 | 0.0638 | 1.0872 | 0.4064 | 0.028* | |
C7 | 0.2198 (2) | 0.91503 (17) | 0.30561 (10) | 0.0222 (3) | |
C8 | 0.3765 (2) | 0.78118 (18) | 0.28978 (10) | 0.0242 (3) | |
H8 | 0.4094 | 0.7319 | 0.2253 | 0.029* | |
C9 | 0.48388 (19) | 0.72125 (17) | 0.37112 (11) | 0.0218 (3) | |
C10 | 0.0542 (2) | 0.70422 (18) | 0.14554 (10) | 0.0237 (3) | |
C11 | 0.0484 (2) | 0.55129 (19) | 0.19411 (12) | 0.0301 (3) | |
H11 | −0.0192 | 0.5528 | 0.2560 | 0.036* | |
C12 | 0.1434 (2) | 0.3959 (2) | 0.15060 (13) | 0.0363 (4) | |
H12 | 0.1384 | 0.2902 | 0.1828 | 0.044* | |
C13 | 0.2454 (2) | 0.3912 (2) | 0.06117 (13) | 0.0367 (4) | |
C14 | 0.2448 (2) | 0.5469 (2) | 0.01312 (12) | 0.0373 (4) | |
H14 | 0.3111 | 0.5456 | −0.0492 | 0.045* | |
C15 | 0.1497 (2) | 0.7033 (2) | 0.05420 (11) | 0.0310 (3) | |
H15 | 0.1497 | 0.8089 | 0.0204 | 0.037* | |
C16 | 0.4986 (2) | 0.7756 (2) | 0.65416 (11) | 0.0307 (3) | |
H16A | 0.5894 | 0.7093 | 0.7004 | 0.037* | |
H16B | 0.3773 | 0.7599 | 0.6731 | 0.037* | |
H16C | 0.4938 | 0.8987 | 0.6575 | 0.037* | |
C17 | 0.3556 (3) | 0.2207 (2) | 0.01848 (17) | 0.0579 (6) | |
H17A | 0.4712 | 0.1806 | 0.0533 | 0.069* | |
H17B | 0.3824 | 0.2354 | −0.0533 | 0.069* | |
H17C | 0.2849 | 0.1351 | 0.0276 | 0.069* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0268 (2) | 0.02155 (18) | 0.0275 (2) | −0.00202 (14) | −0.00334 (15) | −0.00134 (14) |
O1 | 0.0219 (5) | 0.0191 (5) | 0.0340 (6) | 0.0000 (4) | 0.0056 (4) | −0.0021 (4) |
O2 | 0.0322 (6) | 0.0196 (5) | 0.0294 (5) | −0.0069 (4) | −0.0047 (4) | 0.0032 (4) |
O3 | 0.0241 (6) | 0.0242 (5) | 0.0549 (7) | 0.0013 (5) | 0.0050 (5) | 0.0014 (5) |
O4 | 0.0301 (6) | 0.0361 (6) | 0.0309 (6) | −0.0090 (5) | 0.0059 (5) | −0.0072 (5) |
O5 | 0.0431 (7) | 0.0268 (6) | 0.0391 (6) | 0.0033 (5) | −0.0153 (5) | 0.0017 (5) |
C1 | 0.0197 (7) | 0.0198 (7) | 0.0428 (9) | −0.0054 (6) | 0.0024 (6) | 0.0019 (6) |
C2 | 0.0213 (7) | 0.0235 (7) | 0.0384 (8) | −0.0064 (6) | −0.0035 (6) | 0.0024 (6) |
C3 | 0.0211 (7) | 0.0207 (7) | 0.0320 (8) | −0.0086 (6) | −0.0010 (6) | −0.0003 (6) |
C4 | 0.0191 (7) | 0.0160 (6) | 0.0287 (7) | −0.0058 (5) | 0.0022 (6) | −0.0026 (5) |
C5 | 0.0215 (7) | 0.0186 (6) | 0.0278 (7) | −0.0053 (5) | 0.0036 (6) | −0.0053 (5) |
C6 | 0.0212 (7) | 0.0170 (6) | 0.0320 (8) | −0.0036 (5) | 0.0025 (6) | −0.0042 (6) |
C7 | 0.0248 (7) | 0.0168 (6) | 0.0259 (7) | −0.0070 (6) | −0.0007 (6) | 0.0010 (5) |
C8 | 0.0272 (8) | 0.0197 (7) | 0.0252 (7) | −0.0062 (6) | 0.0044 (6) | −0.0035 (5) |
C9 | 0.0181 (7) | 0.0150 (6) | 0.0312 (7) | −0.0035 (5) | 0.0055 (6) | −0.0022 (5) |
C10 | 0.0254 (7) | 0.0210 (7) | 0.0240 (7) | −0.0046 (6) | −0.0025 (6) | −0.0014 (5) |
C11 | 0.0331 (9) | 0.0256 (8) | 0.0317 (8) | −0.0080 (7) | −0.0019 (7) | 0.0017 (6) |
C12 | 0.0378 (10) | 0.0211 (7) | 0.0501 (10) | −0.0073 (7) | −0.0097 (8) | 0.0008 (7) |
C13 | 0.0276 (8) | 0.0295 (8) | 0.0517 (10) | −0.0031 (7) | −0.0080 (8) | −0.0139 (7) |
C14 | 0.0322 (9) | 0.0449 (10) | 0.0327 (9) | −0.0066 (8) | 0.0051 (7) | −0.0129 (7) |
C15 | 0.0352 (9) | 0.0282 (8) | 0.0282 (8) | −0.0066 (7) | 0.0009 (7) | 0.0013 (6) |
C16 | 0.0311 (9) | 0.0295 (8) | 0.0319 (8) | −0.0084 (7) | −0.0042 (7) | −0.0027 (6) |
C17 | 0.0407 (11) | 0.0384 (10) | 0.0896 (16) | 0.0010 (9) | −0.0060 (11) | −0.0315 (10) |
S1—O5 | 1.4215 (11) | C8—C9 | 1.3824 (19) |
S1—O4 | 1.4219 (11) | C8—H8 | 0.9500 |
S1—O2 | 1.6097 (11) | C10—C11 | 1.384 (2) |
S1—C10 | 1.7485 (15) | C10—C15 | 1.387 (2) |
O1—C9 | 1.3710 (16) | C11—C12 | 1.386 (2) |
O1—C1 | 1.3817 (18) | C11—H11 | 0.9500 |
O2—C7 | 1.4104 (16) | C12—C13 | 1.386 (2) |
O3—C1 | 1.2119 (18) | C12—H12 | 0.9500 |
C1—C2 | 1.446 (2) | C13—C14 | 1.389 (2) |
C2—C3 | 1.348 (2) | C13—C17 | 1.507 (2) |
C2—H2 | 0.9500 | C14—C15 | 1.379 (2) |
C3—C4 | 1.4521 (19) | C14—H14 | 0.9500 |
C3—C16 | 1.499 (2) | C15—H15 | 0.9500 |
C4—C9 | 1.3983 (19) | C16—H16A | 0.9800 |
C4—C5 | 1.4028 (19) | C16—H16B | 0.9800 |
C5—C6 | 1.3782 (19) | C16—H16C | 0.9800 |
C5—H5 | 0.9500 | C17—H17A | 0.9800 |
C6—C7 | 1.3868 (19) | C17—H17B | 0.9800 |
C6—H6 | 0.9500 | C17—H17C | 0.9800 |
C7—C8 | 1.379 (2) | ||
O5—S1—O4 | 120.25 (8) | O1—C9—C4 | 121.76 (13) |
O5—S1—O2 | 103.06 (6) | C8—C9—C4 | 122.18 (13) |
O4—S1—O2 | 109.02 (6) | C11—C10—C15 | 121.11 (14) |
O5—S1—C10 | 110.90 (7) | C11—C10—S1 | 119.45 (12) |
O4—S1—C10 | 109.26 (7) | C15—C10—S1 | 119.43 (11) |
O2—S1—C10 | 102.75 (6) | C10—C11—C12 | 118.67 (15) |
C9—O1—C1 | 121.11 (12) | C10—C11—H11 | 120.7 |
C7—O2—S1 | 117.90 (8) | C12—C11—H11 | 120.7 |
O3—C1—O1 | 116.22 (14) | C11—C12—C13 | 121.42 (15) |
O3—C1—C2 | 126.26 (15) | C11—C12—H12 | 119.3 |
O1—C1—C2 | 117.51 (13) | C13—C12—H12 | 119.3 |
C3—C2—C1 | 122.73 (14) | C12—C13—C14 | 118.46 (15) |
C3—C2—H2 | 118.6 | C12—C13—C17 | 120.29 (17) |
C1—C2—H2 | 118.6 | C14—C13—C17 | 121.25 (17) |
C2—C3—C4 | 118.39 (13) | C15—C14—C13 | 121.24 (16) |
C2—C3—C16 | 121.80 (14) | C15—C14—H14 | 119.4 |
C4—C3—C16 | 119.79 (13) | C13—C14—H14 | 119.4 |
C9—C4—C5 | 117.80 (13) | C14—C15—C10 | 119.03 (15) |
C9—C4—C3 | 118.45 (13) | C14—C15—H15 | 120.5 |
C5—C4—C3 | 123.74 (13) | C10—C15—H15 | 120.5 |
C6—C5—C4 | 121.12 (13) | C3—C16—H16A | 109.5 |
C6—C5—H5 | 119.4 | C3—C16—H16B | 109.5 |
C4—C5—H5 | 119.4 | H16A—C16—H16B | 109.5 |
C5—C6—C7 | 118.61 (13) | C3—C16—H16C | 109.5 |
C5—C6—H6 | 120.7 | H16A—C16—H16C | 109.5 |
C7—C6—H6 | 120.7 | H16B—C16—H16C | 109.5 |
C8—C7—C6 | 122.58 (13) | C13—C17—H17A | 109.5 |
C8—C7—O2 | 118.74 (12) | C13—C17—H17B | 109.5 |
C6—C7—O2 | 118.60 (13) | H17A—C17—H17B | 109.5 |
C7—C8—C9 | 117.65 (13) | C13—C17—H17C | 109.5 |
C7—C8—H8 | 121.2 | H17A—C17—H17C | 109.5 |
C9—C8—H8 | 121.2 | H17B—C17—H17C | 109.5 |
O1—C9—C8 | 116.05 (12) | ||
O5—S1—O2—C7 | 167.92 (10) | C1—O1—C9—C4 | 0.17 (19) |
O4—S1—O2—C7 | 39.08 (11) | C7—C8—C9—O1 | 179.78 (12) |
C10—S1—O2—C7 | −76.75 (11) | C7—C8—C9—C4 | 1.0 (2) |
C9—O1—C1—O3 | −179.83 (12) | C5—C4—C9—O1 | 178.86 (12) |
C9—O1—C1—C2 | 1.12 (19) | C3—C4—C9—O1 | −2.0 (2) |
O3—C1—C2—C3 | −179.45 (15) | C5—C4—C9—C8 | −2.4 (2) |
O1—C1—C2—C3 | −0.5 (2) | C3—C4—C9—C8 | 176.75 (12) |
C1—C2—C3—C4 | −1.3 (2) | O5—S1—C10—C11 | −135.28 (13) |
C1—C2—C3—C16 | 176.97 (13) | O4—S1—C10—C11 | −0.47 (14) |
C2—C3—C4—C9 | 2.54 (19) | O2—S1—C10—C11 | 115.18 (12) |
C16—C3—C4—C9 | −175.78 (13) | O5—S1—C10—C15 | 45.99 (14) |
C2—C3—C4—C5 | −178.39 (13) | O4—S1—C10—C15 | −179.20 (12) |
C16—C3—C4—C5 | 3.3 (2) | O2—S1—C10—C15 | −63.55 (13) |
C9—C4—C5—C6 | 1.5 (2) | C15—C10—C11—C12 | 1.2 (2) |
C3—C4—C5—C6 | −177.61 (13) | S1—C10—C11—C12 | −177.49 (12) |
C4—C5—C6—C7 | 0.8 (2) | C10—C11—C12—C13 | 1.1 (2) |
C5—C6—C7—C8 | −2.3 (2) | C11—C12—C13—C14 | −2.6 (2) |
C5—C6—C7—O2 | −178.95 (12) | C11—C12—C13—C17 | 176.63 (15) |
S1—O2—C7—C8 | 92.71 (14) | C12—C13—C14—C15 | 1.8 (2) |
S1—O2—C7—C6 | −90.55 (13) | C17—C13—C14—C15 | −177.42 (16) |
C6—C7—C8—C9 | 1.5 (2) | C13—C14—C15—C10 | 0.4 (2) |
O2—C7—C8—C9 | 178.07 (12) | C11—C10—C15—C14 | −2.0 (2) |
C1—O1—C9—C8 | −178.66 (12) | S1—C10—C15—C14 | 176.72 (12) |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5···O4i | 0.95 | 2.50 | 3.447 (2) | 176 |
C6—H6···O3ii | 0.95 | 2.49 | 3.380 (2) | 156 |
C11—H11···O3iii | 0.95 | 2.50 | 3.355 (2) | 150 |
C12—H12···O2iv | 0.95 | 2.58 | 3.506 (2) | 165 |
C15—H15···O5v | 0.95 | 2.41 | 3.284 (2) | 152 |
Symmetry codes: (i) −x, −y+2, −z+1; (ii) x−1, y+1, z; (iii) x−1, y, z; (iv) x, y−1, z; (v) −x, −y+2, −z. |
Experimental details
Crystal data | |
Chemical formula | C17H14O5S |
Mr | 330.34 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 153 |
a, b, c (Å) | 7.5582 (19), 8.024 (2), 13.336 (4) |
α, β, γ (°) | 88.648 (8), 87.420 (7), 74.341 (4) |
V (Å3) | 777.9 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.23 |
Crystal size (mm) | 0.54 × 0.41 × 0.40 |
Data collection | |
Diffractometer | Rigaku AFC10/Saturn724+ |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.885, 0.913 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8968, 4451, 3289 |
Rint | 0.037 |
(sin θ/λ)max (Å−1) | 0.704 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.099, 1.00 |
No. of reflections | 4451 |
No. of parameters | 211 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.30, −0.47 |
Computer programs: CrystalClear (Rigaku, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999), SHELXTL (Sheldrick, 2008) and publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5···O4i | 0.95 | 2.50 | 3.447 (2) | 176 |
C6—H6···O3ii | 0.95 | 2.49 | 3.380 (2) | 156 |
C11—H11···O3iii | 0.95 | 2.50 | 3.355 (2) | 150 |
C12—H12···O2iv | 0.95 | 2.58 | 3.506 (2) | 165 |
C15—H15···O5v | 0.95 | 2.41 | 3.284 (2) | 152 |
Symmetry codes: (i) −x, −y+2, −z+1; (ii) x−1, y+1, z; (iii) x−1, y, z; (iv) x, y−1, z; (v) −x, −y+2, −z. |
Acknowledgements
The authors are grateful to the National Natural Science Foundation of China (No. 20962007) and the Creative Talents Plan of Hainan University 211 project.
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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.
Coumarin derivatives exhibit a wide variety of pharmacological activities including anti-HIV (Xie et al., 2001), antibacterial (Tanitame et al., 2004), antioxidant (Shao et al., 1997), antithrombotic (Rendenbach-Müller et al., 1994) and antiinflammatory (Pochet et al., 1996) activities.
The molecular structure is shown in Fig. 1. The dihedral angle between the coumarin ring system and the phenyl ring is 56.11 (6)°. The terminal S═O bond distances of 1.4215 (11) and 1.4219 (11) Å agree with 1.4207 (19) and 1.4331 (19) Å found in a related compound, 4-methyl-7-phenylsulfonamido-2H-1-benzopyran-2-one (Yang et al., 2007).
In the crystal the molecules are linked by weak C—H···O hydrogen bonding (Table 1 and Fig. 2).