organic compounds
2,5-Dimethyl-3-(4-methylphenylsulfonyl)-1-benzofuran
aDepartment of Chemistry, Dongeui University, San 24 Kaya-dong, Busanjin-gu, Busan 614-714, Republic of Korea, and bDepartment of Chemistry, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea
*Correspondence e-mail: uklee@pknu.ac.kr
In the title compound, C17H16O3S, the dihedral angle between the 4-methylphenyl ring and the mean plane [r.m.s. deviation = 0.011 (1) Å] of the benzofuran ring system is 71.47 (5)°. In the crystal, molecules are linked by weak C—H⋯O hydrogen bonds, and by slipped π–π interactions between the benzofuran ring systems of neighbouring molecules [centroid–centroid distances = 3.638 (2) and 3.766 (2) Å, interplanar distances = 3.564 (2) and 3.454 (2) Å, and slippages = 0.730 (2) and 1.501 (2) Å], forming a three-dimensional network.
Related literature
For background information and the crystal structures of related compounds, see: Choi et al. (2010, 2012).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); 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 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536813011392/is5267sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813011392/is5267Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813011392/is5267Isup3.cml
3-Chloroperoxybenzoic acid (77%, 560 mg, 2.5 mmol) was added in small portions to a stirred solution of 2,5-dimethyl-3-(4-methylphenylsulfanyl)-1-benzofuran (322 mg, 1.2 mmol) in dichloromethane (40 mL) at 273 K. After being stirred at room temperature for 8h, the mixture was washed with saturated sodium bicarbonate solution and the organic layer was separated, dried over magnesium sulfate, filtered and concentrated at reduced pressure. The residue was purified by
(hexane-ethyl acetate, 4:1 v/v) to afford the title compound as a colorless solid [yield 73%, m.p. 406–407 K; Rf = 0.48 (hexane–ethyl acetate, 4:1 v/v)]. Single crystals suitable for X-ray diffraction were prepared by slow evaporation of a solution of the title compound in acetone at room temperature.All H atoms were positioned geometrically and refined using a riding model, with C—H = 0.95 Å for aryl and 0.98 Å for methyl H atoms, and with Uiso(H) = 1.2Ueq(C) for aryl and 1.5Ueq(C) for methyl H atoms. The positions of methyl hydrogens were optimized rotationally.
As a part of our continuing study of 2,5-dimethyl-1-benzofuran derivatives containing 4-chlorophenylsulfonyl (Choi et al., 2010) and 4-methylphenylsulfinyl (Choi et al., 2012) substituents in 3-position, we report herein the
of the title compound.In the title molecule (Fig. 1), the benzofuran unit is essentially planar, with a mean deviation of 0.011 (1) Å from the least-squares plane defined by the nine constituent atoms. The dihedral angle between the 4-methylphenyl ring and the mean plane of the benzofuran fragment is 71.47 (5)°. In the π–π interactions between the furan and benzene rings of neighbouring molecules, with Cg1···Cg2iii and Cg1···Cg2iv distances of 3.638 (2) Å & 3.766 (2) Å, and interplanar distances of 3.564 (2) Å & 3.454 (2) Å resulting in slippages of 0.730 (2) Å & 1.501 (2) Å (Cg1 and Cg2 are the centroids of the C1/C2/C7/O1/C8 furan ring and the C2–C7 benzene ring, respectively).
(Fig. 2), molecules are connected by weak C—H···O hydrogen bonds (Table 1), and by slippedFor background information and the crystal structures of related compounds, see: Choi et al. (2010, 2012).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); 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, 2012) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C17H16O3S | Z = 2 |
Mr = 300.36 | F(000) = 316 |
Triclinic, P1 | Dx = 1.389 Mg m−3 |
Hall symbol: -P 1 | Melting point = 406–407 K |
a = 7.3481 (3) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 10.2285 (4) Å | Cell parameters from 5770 reflections |
c = 11.0625 (4) Å | θ = 2.3–28.3° |
α = 114.134 (2)° | µ = 0.23 mm−1 |
β = 91.056 (2)° | T = 173 K |
γ = 106.624 (2)° | Block, colourless |
V = 718.30 (5) Å3 | 0.31 × 0.25 × 0.12 mm |
Bruker SMART APEXII CCD diffractometer | 3545 independent reflections |
Radiation source: rotating anode | 2977 reflections with I > 2σ(I) |
Graphite multilayer monochromator | Rint = 0.029 |
Detector resolution: 10.0 pixels mm-1 | θmax = 28.3°, θmin = 2.0° |
φ and ω scans | h = −9→9 |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | k = −13→13 |
Tmin = 0.684, Tmax = 0.746 | l = −13→14 |
13104 measured reflections |
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: difference Fourier map |
wR(F2) = 0.108 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.046P)2 + 0.3774P] where P = (Fo2 + 2Fc2)/3 |
3545 reflections | (Δ/σ)max < 0.001 |
193 parameters | Δρmax = 0.39 e Å−3 |
0 restraints | Δρmin = −0.47 e Å−3 |
C17H16O3S | γ = 106.624 (2)° |
Mr = 300.36 | V = 718.30 (5) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.3481 (3) Å | Mo Kα radiation |
b = 10.2285 (4) Å | µ = 0.23 mm−1 |
c = 11.0625 (4) Å | T = 173 K |
α = 114.134 (2)° | 0.31 × 0.25 × 0.12 mm |
β = 91.056 (2)° |
Bruker SMART APEXII CCD diffractometer | 3545 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 2977 reflections with I > 2σ(I) |
Tmin = 0.684, Tmax = 0.746 | Rint = 0.029 |
13104 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.108 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.39 e Å−3 |
3545 reflections | Δρmin = −0.47 e Å−3 |
193 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | 0.50135 (6) | 0.10427 (4) | 0.27607 (4) | 0.02799 (12) | |
O1 | 0.81392 (17) | 0.52143 (13) | 0.36169 (13) | 0.0350 (3) | |
O2 | 0.38652 (17) | 0.08356 (13) | 0.37433 (12) | 0.0334 (3) | |
O3 | 0.40868 (17) | 0.05919 (14) | 0.14334 (12) | 0.0371 (3) | |
C1 | 0.6363 (2) | 0.29425 (18) | 0.34342 (16) | 0.0279 (3) | |
C2 | 0.6791 (2) | 0.39740 (18) | 0.48433 (16) | 0.0278 (3) | |
C3 | 0.6357 (2) | 0.38832 (19) | 0.60305 (16) | 0.0306 (3) | |
H3 | 0.5622 | 0.2948 | 0.6021 | 0.037* | |
C4 | 0.7017 (2) | 0.5182 (2) | 0.72308 (17) | 0.0353 (4) | |
C5 | 0.8078 (3) | 0.6558 (2) | 0.72172 (19) | 0.0400 (4) | |
H5 | 0.8498 | 0.7443 | 0.8043 | 0.048* | |
C6 | 0.8531 (3) | 0.6672 (2) | 0.60581 (19) | 0.0383 (4) | |
H6 | 0.9257 | 0.7607 | 0.6063 | 0.046* | |
C7 | 0.7877 (2) | 0.53589 (19) | 0.48886 (18) | 0.0315 (4) | |
C8 | 0.7209 (2) | 0.37347 (19) | 0.27511 (18) | 0.0321 (4) | |
C9 | 0.6603 (3) | 0.5108 (2) | 0.85310 (19) | 0.0485 (5) | |
H9A | 0.5486 | 0.4219 | 0.8355 | 0.073* | |
H9B | 0.6332 | 0.6025 | 0.9126 | 0.073* | |
H9C | 0.7722 | 0.5030 | 0.8960 | 0.073* | |
C10 | 0.7368 (3) | 0.3328 (2) | 0.13212 (19) | 0.0423 (4) | |
H10A | 0.7052 | 0.4059 | 0.1067 | 0.064* | |
H10B | 0.6473 | 0.2312 | 0.0770 | 0.064* | |
H10C | 0.8685 | 0.3344 | 0.1178 | 0.064* | |
C11 | 0.6690 (2) | 0.00704 (17) | 0.26085 (15) | 0.0276 (3) | |
C12 | 0.7065 (3) | −0.0350 (2) | 0.36046 (17) | 0.0337 (4) | |
H12 | 0.6457 | −0.0089 | 0.4380 | 0.040* | |
C13 | 0.8334 (3) | −0.1156 (2) | 0.34560 (19) | 0.0376 (4) | |
H13 | 0.8570 | −0.1465 | 0.4128 | 0.045* | |
C14 | 0.9267 (2) | −0.15207 (18) | 0.23464 (18) | 0.0337 (4) | |
C15 | 0.8911 (3) | −0.1045 (2) | 0.13838 (17) | 0.0361 (4) | |
H15 | 0.9576 | −0.1255 | 0.0634 | 0.043* | |
C16 | 0.7616 (3) | −0.02729 (19) | 0.14912 (16) | 0.0337 (4) | |
H16 | 0.7361 | 0.0020 | 0.0811 | 0.040* | |
C17 | 1.0609 (3) | −0.2432 (2) | 0.2168 (2) | 0.0441 (4) | |
H17A | 1.1135 | −0.2298 | 0.3047 | 0.066* | |
H17B | 1.1661 | −0.2089 | 0.1726 | 0.066* | |
H17C | 0.9903 | −0.3505 | 0.1616 | 0.066* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0275 (2) | 0.0299 (2) | 0.0247 (2) | 0.00481 (15) | 0.00166 (15) | 0.01299 (16) |
O1 | 0.0319 (6) | 0.0332 (6) | 0.0455 (7) | 0.0079 (5) | 0.0067 (5) | 0.0241 (6) |
O2 | 0.0318 (6) | 0.0342 (6) | 0.0320 (6) | 0.0048 (5) | 0.0081 (5) | 0.0160 (5) |
O3 | 0.0362 (7) | 0.0431 (7) | 0.0286 (6) | 0.0086 (5) | −0.0019 (5) | 0.0155 (5) |
C1 | 0.0249 (7) | 0.0302 (8) | 0.0310 (8) | 0.0082 (6) | 0.0034 (6) | 0.0159 (6) |
C2 | 0.0234 (7) | 0.0286 (8) | 0.0334 (8) | 0.0098 (6) | 0.0036 (6) | 0.0142 (6) |
C3 | 0.0289 (8) | 0.0304 (8) | 0.0324 (8) | 0.0097 (6) | 0.0042 (6) | 0.0134 (7) |
C4 | 0.0335 (9) | 0.0373 (9) | 0.0333 (9) | 0.0161 (7) | 0.0040 (7) | 0.0105 (7) |
C5 | 0.0375 (9) | 0.0315 (9) | 0.0428 (10) | 0.0139 (7) | −0.0023 (8) | 0.0068 (8) |
C6 | 0.0315 (9) | 0.0283 (8) | 0.0526 (11) | 0.0088 (7) | −0.0002 (8) | 0.0159 (8) |
C7 | 0.0259 (8) | 0.0316 (8) | 0.0421 (9) | 0.0108 (6) | 0.0048 (7) | 0.0198 (7) |
C8 | 0.0275 (8) | 0.0348 (8) | 0.0393 (9) | 0.0101 (7) | 0.0046 (7) | 0.0211 (7) |
C9 | 0.0560 (12) | 0.0507 (12) | 0.0327 (10) | 0.0198 (10) | 0.0069 (9) | 0.0103 (9) |
C10 | 0.0434 (10) | 0.0529 (11) | 0.0418 (10) | 0.0139 (9) | 0.0111 (8) | 0.0319 (9) |
C11 | 0.0290 (8) | 0.0259 (7) | 0.0245 (7) | 0.0040 (6) | 0.0005 (6) | 0.0109 (6) |
C12 | 0.0381 (9) | 0.0368 (9) | 0.0286 (8) | 0.0088 (7) | 0.0073 (7) | 0.0184 (7) |
C13 | 0.0413 (10) | 0.0395 (9) | 0.0393 (9) | 0.0111 (8) | 0.0041 (8) | 0.0254 (8) |
C14 | 0.0318 (8) | 0.0249 (8) | 0.0391 (9) | 0.0034 (6) | 0.0024 (7) | 0.0128 (7) |
C15 | 0.0407 (9) | 0.0352 (9) | 0.0290 (8) | 0.0114 (7) | 0.0083 (7) | 0.0110 (7) |
C16 | 0.0413 (9) | 0.0356 (9) | 0.0237 (8) | 0.0104 (7) | 0.0034 (7) | 0.0138 (7) |
C17 | 0.0402 (10) | 0.0351 (9) | 0.0599 (12) | 0.0123 (8) | 0.0089 (9) | 0.0230 (9) |
S1—O2 | 1.4347 (12) | C9—H9B | 0.9800 |
S1—O3 | 1.4360 (12) | C9—H9C | 0.9800 |
S1—C1 | 1.7323 (16) | C10—H10A | 0.9800 |
S1—C11 | 1.7628 (16) | C10—H10B | 0.9800 |
O1—C8 | 1.369 (2) | C10—H10C | 0.9800 |
O1—C7 | 1.376 (2) | C11—C12 | 1.386 (2) |
C1—C8 | 1.358 (2) | C11—C16 | 1.388 (2) |
C1—C2 | 1.445 (2) | C12—C13 | 1.382 (2) |
C2—C3 | 1.390 (2) | C12—H12 | 0.9500 |
C2—C7 | 1.393 (2) | C13—C14 | 1.386 (3) |
C3—C4 | 1.389 (2) | C13—H13 | 0.9500 |
C3—H3 | 0.9500 | C14—C15 | 1.388 (2) |
C4—C5 | 1.407 (3) | C14—C17 | 1.504 (2) |
C4—C9 | 1.503 (3) | C15—C16 | 1.378 (2) |
C5—C6 | 1.373 (3) | C15—H15 | 0.9500 |
C5—H5 | 0.9500 | C16—H16 | 0.9500 |
C6—C7 | 1.377 (2) | C17—H17A | 0.9800 |
C6—H6 | 0.9500 | C17—H17B | 0.9800 |
C8—C10 | 1.478 (2) | C17—H17C | 0.9800 |
C9—H9A | 0.9800 | ||
O2—S1—O3 | 119.29 (7) | C4—C9—H9C | 109.5 |
O2—S1—C1 | 106.76 (7) | H9A—C9—H9C | 109.5 |
O3—S1—C1 | 109.07 (8) | H9B—C9—H9C | 109.5 |
O2—S1—C11 | 107.90 (7) | C8—C10—H10A | 109.5 |
O3—S1—C11 | 107.52 (7) | C8—C10—H10B | 109.5 |
C1—S1—C11 | 105.50 (7) | H10A—C10—H10B | 109.5 |
C8—O1—C7 | 107.01 (12) | C8—C10—H10C | 109.5 |
C8—C1—C2 | 107.56 (14) | H10A—C10—H10C | 109.5 |
C8—C1—S1 | 126.87 (13) | H10B—C10—H10C | 109.5 |
C2—C1—S1 | 125.57 (12) | C12—C11—C16 | 120.60 (16) |
C3—C2—C7 | 119.29 (15) | C12—C11—S1 | 119.59 (13) |
C3—C2—C1 | 136.09 (15) | C16—C11—S1 | 119.81 (12) |
C7—C2—C1 | 104.60 (15) | C13—C12—C11 | 119.20 (16) |
C4—C3—C2 | 118.91 (16) | C13—C12—H12 | 120.4 |
C4—C3—H3 | 120.5 | C11—C12—H12 | 120.4 |
C2—C3—H3 | 120.5 | C12—C13—C14 | 121.31 (16) |
C3—C4—C5 | 119.47 (17) | C12—C13—H13 | 119.3 |
C3—C4—C9 | 119.97 (17) | C14—C13—H13 | 119.3 |
C5—C4—C9 | 120.56 (17) | C13—C14—C15 | 118.30 (16) |
C6—C5—C4 | 122.60 (17) | C13—C14—C17 | 121.26 (16) |
C6—C5—H5 | 118.7 | C15—C14—C17 | 120.44 (17) |
C4—C5—H5 | 118.7 | C16—C15—C14 | 121.53 (16) |
C5—C6—C7 | 116.39 (17) | C16—C15—H15 | 119.2 |
C5—C6—H6 | 121.8 | C14—C15—H15 | 119.2 |
C7—C6—H6 | 121.8 | C15—C16—C11 | 119.01 (15) |
O1—C7—C6 | 126.27 (16) | C15—C16—H16 | 120.5 |
O1—C7—C2 | 110.39 (14) | C11—C16—H16 | 120.5 |
C6—C7—C2 | 123.32 (17) | C14—C17—H17A | 109.5 |
C1—C8—O1 | 110.43 (15) | C14—C17—H17B | 109.5 |
C1—C8—C10 | 133.95 (17) | H17A—C17—H17B | 109.5 |
O1—C8—C10 | 115.60 (15) | C14—C17—H17C | 109.5 |
C4—C9—H9A | 109.5 | H17A—C17—H17C | 109.5 |
C4—C9—H9B | 109.5 | H17B—C17—H17C | 109.5 |
H9A—C9—H9B | 109.5 | ||
O2—S1—C1—C8 | −159.43 (14) | C1—C2—C7—C6 | 177.78 (15) |
O3—S1—C1—C8 | −29.29 (17) | C2—C1—C8—O1 | −0.70 (18) |
C11—S1—C1—C8 | 85.95 (16) | S1—C1—C8—O1 | 179.36 (11) |
O2—S1—C1—C2 | 20.64 (15) | C2—C1—C8—C10 | 177.32 (18) |
O3—S1—C1—C2 | 150.78 (13) | S1—C1—C8—C10 | −2.6 (3) |
C11—S1—C1—C2 | −93.98 (14) | C7—O1—C8—C1 | 0.23 (17) |
C8—C1—C2—C3 | 179.54 (18) | C7—O1—C8—C10 | −178.19 (14) |
S1—C1—C2—C3 | −0.5 (3) | O2—S1—C11—C12 | −17.41 (15) |
C8—C1—C2—C7 | 0.87 (17) | O3—S1—C11—C12 | −147.28 (13) |
S1—C1—C2—C7 | −179.19 (12) | C1—S1—C11—C12 | 96.42 (14) |
C7—C2—C3—C4 | 0.2 (2) | O2—S1—C11—C16 | 162.29 (13) |
C1—C2—C3—C4 | −178.31 (17) | O3—S1—C11—C16 | 32.42 (15) |
C2—C3—C4—C5 | 1.0 (2) | C1—S1—C11—C16 | −83.88 (14) |
C2—C3—C4—C9 | −178.75 (16) | C16—C11—C12—C13 | −1.8 (3) |
C3—C4—C5—C6 | −1.4 (3) | S1—C11—C12—C13 | 177.88 (13) |
C9—C4—C5—C6 | 178.35 (17) | C11—C12—C13—C14 | 1.4 (3) |
C4—C5—C6—C7 | 0.5 (3) | C12—C13—C14—C15 | 0.6 (3) |
C8—O1—C7—C6 | −178.12 (16) | C12—C13—C14—C17 | −178.38 (16) |
C8—O1—C7—C2 | 0.35 (17) | C13—C14—C15—C16 | −2.2 (3) |
C5—C6—C7—O1 | 179.09 (15) | C17—C14—C15—C16 | 176.74 (16) |
C5—C6—C7—C2 | 0.8 (3) | C14—C15—C16—C11 | 1.8 (3) |
C3—C2—C7—O1 | −179.69 (13) | C12—C11—C16—C15 | 0.2 (2) |
C1—C2—C7—O1 | −0.75 (17) | S1—C11—C16—C15 | −179.48 (13) |
C3—C2—C7—C6 | −1.2 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C12—H12···O2i | 0.95 | 2.48 | 3.224 (2) | 135 |
C16—H16···O3ii | 0.95 | 2.44 | 3.301 (2) | 151 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x+1, −y, −z. |
Experimental details
Crystal data | |
Chemical formula | C17H16O3S |
Mr | 300.36 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 173 |
a, b, c (Å) | 7.3481 (3), 10.2285 (4), 11.0625 (4) |
α, β, γ (°) | 114.134 (2), 91.056 (2), 106.624 (2) |
V (Å3) | 718.30 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.23 |
Crystal size (mm) | 0.31 × 0.25 × 0.12 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.684, 0.746 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13104, 3545, 2977 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.668 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.108, 1.04 |
No. of reflections | 3545 |
No. of parameters | 193 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.39, −0.47 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 1998).
D—H···A | D—H | H···A | D···A | D—H···A |
C12—H12···O2i | 0.95 | 2.48 | 3.224 (2) | 135 |
C16—H16···O3ii | 0.95 | 2.44 | 3.301 (2) | 151 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x+1, −y, −z. |
Acknowledgements
This work was supported by the Blue-Bio Industry Regional Innovation Center (RIC08-06-07) at Dongeui University as an RIC program under the Ministry of Knowledge Economy and Busan city.
References
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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.
As a part of our continuing study of 2,5-dimethyl-1-benzofuran derivatives containing 4-chlorophenylsulfonyl (Choi et al., 2010) and 4-methylphenylsulfinyl (Choi et al., 2012) substituents in 3-position, we report herein the crystal structure of the title compound.
In the title molecule (Fig. 1), the benzofuran unit is essentially planar, with a mean deviation of 0.011 (1) Å from the least-squares plane defined by the nine constituent atoms. The dihedral angle between the 4-methylphenyl ring and the mean plane of the benzofuran fragment is 71.47 (5)°. In the crystal structure (Fig. 2), molecules are connected by weak C—H···O hydrogen bonds (Table 1), and by slipped π–π interactions between the furan and benzene rings of neighbouring molecules, with Cg1···Cg2iii and Cg1···Cg2iv distances of 3.638 (2) Å & 3.766 (2) Å, and interplanar distances of 3.564 (2) Å & 3.454 (2) Å resulting in slippages of 0.730 (2) Å & 1.501 (2) Å (Cg1 and Cg2 are the centroids of the C1/C2/C7/O1/C8 furan ring and the C2–C7 benzene ring, respectively).