organic compounds
2-(4-Bromophenyl)-5,7-dimethyl-3-methylsulfanyl-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
The title compound, C17H15BrOS, was prepared by the Lewis acid-catalysed reaction of 2,4-dimethylphenol with 4′-bromo-2-chloro-2-(methylsulfanyl)acetophenone. The 4-bromophenyl ring is rotated slightly out of the benzofuran plane, making a dihedral angle of 8.4 (1)°. The is stabilized by a CH2—H⋯π interaction between the 5-methyl group and the benzene ring of the benzofuran system.
Related literature
For the crystal structures of similar 2-(4-bromophenyl)-1-benzofuran compounds, see: Choi et al. (2007a,b).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536807063052/om2192sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807063052/om2192Isup2.hkl
Zinc chloride (546 mg, 4.0 mmol) was added at room temperature to a stirred solution of 2,4-dimethylphenol (489 mg, 4.0 mmol) and 4'-bromo-2-chloro-2-(methylsulfanyl)acetophenone (1.12 g, 4.0 mmol) in dichloromethane (30 ml) and stirred for 40 min. The mixture was quenched with water and the organic layer was separated, dried over magnesium sulfate, filtered and concentrated in vacuum. The residue was purified by
(CCl4) to afford the title compound as a colorless solid [yield 52%, m.p. 385–386 K; Rf = 0.81 (CCl4)]. Single crystals suitable for X-ray diffraction were prepared by slow evaporation of a of the title compound in chloroform at room temperature.All H atoms were geometrically located in ideal positions and refined using a riding model, with C—H = 0.95 Å for aromatic H atoms and 0.98 Å for methyl H atoms, and with Uiso(H) = 1.2Ueq(C) for aromatic H atoms, and 1.5Ueq(C) for methyl H atoms.
As part of our continuing studies on the synthesis and structures of 2-(4-bromophenyl)-1-benzofuran derivatives, the crystal structures of 2-(4-bromophenyl)-5-methyl-3-methylsulfinyl-1-benzofuran (Choi et al., 2007a) and 2-(4-bromophenyl)-5,7-dimethyl-3-methylsulfinyl-1-benzofuran (Choi et al., 2007b) have been described to the literature. Herein we report the molecular and
of the title compound, 2-(4-bromophenyl)-5,7-dimethyl-3-methylsulfanyl-1-benzofuran (Fig. 1).The benzofuran unit is essentially planar, with a mean deviation of 0.007 Å from the least-squares plane defined by the nine constituent atoms. The dihedral angle in the title compound formed by the plane of the benzofuran unit and the plane of the 4-bromophenyl ring is 8.4 (1)°. The molecular packing (Fig. 2) is stabilized by a CH2—H···π interaction between 5-methyl group and the benzene ring of benzofuran system, with a C15—H15A···Cgi separation of 2.97 Å (Table 1; Cg is a centroid of the C2—C7 benzene ring, symmetry code as in Fig. 2).
For the crystal structures of similar 2-(4-bromophenyl)-1-benzofuran compounds, see: Choi et al. (2007a,b). Cg is the centroid of the C2—C7 benzene ring.
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).C17H15BrOS | F(000) = 352 |
Mr = 347.26 | Dx = 1.531 Mg m−3 |
Monoclinic, P21 | Melting point = 385–386 K |
Hall symbol: p 2yb | Mo Kα radiation, λ = 0.71073 Å |
a = 5.2332 (1) Å | Cell parameters from 3988 reflections |
b = 10.6602 (2) Å | θ = 3.0–27.1° |
c = 13.6374 (2) Å | µ = 2.86 mm−1 |
β = 98.092 (1)° | T = 296 K |
V = 753.21 (2) Å3 | Block, silver |
Z = 2 | 0.30 × 0.24 × 0.08 mm |
Bruker SMART CCD diffractometer | 3448 independent reflections |
Radiation source: fine-focus sealed tube | 2957 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.020 |
Detector resolution: 10.0 pixels mm-1 | θmax = 28.4°, θmin = 1.5° |
φ and ω scans | h = −6→6 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2000) | k = −14→14 |
Tmin = 0.481, Tmax = 0.804 | l = −17→18 |
7779 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)] = 0.026 | H-atom parameters constrained |
wR(F2) = 0.066 | w = 1/[σ2(Fo2) + (0.0308P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.87 | (Δ/σ)max = 0.001 |
3448 reflections | Δρmax = 0.20 e Å−3 |
182 parameters | Δρmin = −0.20 e Å−3 |
1 restraint | Absolute structure: Flack (1983), 1477 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.011 (7) |
C17H15BrOS | V = 753.21 (2) Å3 |
Mr = 347.26 | Z = 2 |
Monoclinic, P21 | Mo Kα radiation |
a = 5.2332 (1) Å | µ = 2.86 mm−1 |
b = 10.6602 (2) Å | T = 296 K |
c = 13.6374 (2) Å | 0.30 × 0.24 × 0.08 mm |
β = 98.092 (1)° |
Bruker SMART CCD diffractometer | 3448 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2000) | 2957 reflections with I > 2σ(I) |
Tmin = 0.481, Tmax = 0.804 | Rint = 0.020 |
7779 measured reflections |
R[F2 > 2σ(F2)] = 0.026 | H-atom parameters constrained |
wR(F2) = 0.066 | Δρmax = 0.20 e Å−3 |
S = 0.87 | Δρmin = −0.20 e Å−3 |
3448 reflections | Absolute structure: Flack (1983), 1477 Friedel pairs |
182 parameters | Absolute structure parameter: 0.011 (7) |
1 restraint |
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 | ||
Br | 0.53020 (5) | 0.73216 (4) | −0.179068 (16) | 0.06373 (10) | |
S | −0.30384 (12) | 0.86959 (6) | 0.21002 (5) | 0.05180 (16) | |
O | 0.0436 (3) | 0.53588 (14) | 0.23230 (12) | 0.0412 (4) | |
C1 | −0.1770 (4) | 0.7187 (3) | 0.23497 (15) | 0.0404 (5) | |
C2 | −0.2370 (5) | 0.6414 (2) | 0.31587 (17) | 0.0407 (5) | |
C3 | −0.3917 (5) | 0.6547 (2) | 0.39043 (19) | 0.0470 (6) | |
H3 | −0.4889 | 0.7271 | 0.3946 | 0.056* | |
C4 | −0.3984 (5) | 0.5590 (2) | 0.45776 (18) | 0.0455 (5) | |
C5 | −0.2494 (5) | 0.4511 (2) | 0.44955 (17) | 0.0450 (5) | |
H5 | −0.2559 | 0.3878 | 0.4960 | 0.054* | |
C6 | −0.0931 (4) | 0.4327 (2) | 0.37673 (17) | 0.0410 (5) | |
C7 | −0.0959 (4) | 0.5314 (2) | 0.31082 (17) | 0.0398 (5) | |
C8 | −0.0091 (4) | 0.6519 (2) | 0.18701 (16) | 0.0404 (5) | |
C9 | 0.1192 (5) | 0.6724 (2) | 0.10053 (18) | 0.0404 (5) | |
C10 | 0.3069 (5) | 0.5879 (2) | 0.07758 (18) | 0.0468 (5) | |
H10 | 0.3491 | 0.5187 | 0.1182 | 0.056* | |
C11 | 0.4310 (5) | 0.6059 (2) | −0.00479 (19) | 0.0510 (6) | |
H11 | 0.5568 | 0.5498 | −0.0190 | 0.061* | |
C12 | 0.3659 (5) | 0.7077 (2) | −0.06535 (17) | 0.0465 (6) | |
C13 | 0.1811 (5) | 0.7927 (3) | −0.04460 (19) | 0.0527 (6) | |
H13 | 0.1395 | 0.8613 | −0.0859 | 0.063* | |
C14 | 0.0585 (5) | 0.7753 (2) | 0.03788 (19) | 0.0491 (6) | |
H14 | −0.0655 | 0.8326 | 0.0518 | 0.059* | |
C15 | −0.5633 (5) | 0.5692 (3) | 0.5390 (2) | 0.0598 (7) | |
H15A | −0.7403 | 0.5805 | 0.5105 | 0.072* | |
H15B | −0.5081 | 0.6398 | 0.5803 | 0.072* | |
H15C | −0.5471 | 0.4940 | 0.5780 | 0.072* | |
C16 | 0.0696 (5) | 0.3184 (2) | 0.3687 (2) | 0.0533 (6) | |
H16A | 0.0178 | 0.2785 | 0.3060 | 0.080* | |
H16B | 0.0473 | 0.2611 | 0.4212 | 0.080* | |
H16C | 0.2478 | 0.3424 | 0.3739 | 0.080* | |
C17 | −0.0310 (6) | 0.9643 (3) | 0.2543 (3) | 0.0748 (10) | |
H17A | −0.0756 | 1.0512 | 0.2448 | 0.112* | |
H17B | 0.1087 | 0.9444 | 0.2183 | 0.112* | |
H17C | 0.0207 | 0.9483 | 0.3235 | 0.112* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br | 0.06774 (17) | 0.0829 (2) | 0.04418 (13) | −0.01530 (17) | 0.02044 (10) | 0.00117 (15) |
S | 0.0504 (4) | 0.0453 (3) | 0.0605 (4) | 0.0108 (3) | 0.0106 (3) | 0.0058 (3) |
O | 0.0507 (9) | 0.0368 (9) | 0.0387 (9) | 0.0033 (7) | 0.0148 (7) | 0.0012 (6) |
C1 | 0.0428 (11) | 0.0384 (12) | 0.0404 (10) | 0.0022 (11) | 0.0073 (8) | −0.0004 (11) |
C2 | 0.0446 (12) | 0.0388 (12) | 0.0397 (12) | −0.0037 (10) | 0.0093 (9) | −0.0049 (9) |
C3 | 0.0501 (13) | 0.0448 (13) | 0.0483 (14) | 0.0014 (11) | 0.0144 (11) | −0.0066 (11) |
C4 | 0.0486 (12) | 0.0477 (14) | 0.0419 (13) | −0.0117 (10) | 0.0125 (10) | −0.0094 (10) |
C5 | 0.0538 (14) | 0.0469 (13) | 0.0354 (11) | −0.0120 (11) | 0.0099 (10) | 0.0023 (10) |
C6 | 0.0457 (13) | 0.0378 (12) | 0.0395 (12) | −0.0050 (10) | 0.0061 (10) | −0.0001 (10) |
C7 | 0.0441 (12) | 0.0418 (13) | 0.0347 (11) | −0.0027 (11) | 0.0097 (9) | −0.0039 (9) |
C8 | 0.0456 (13) | 0.0394 (12) | 0.0361 (12) | −0.0026 (10) | 0.0059 (10) | 0.0017 (9) |
C9 | 0.0425 (12) | 0.0419 (12) | 0.0367 (12) | −0.0040 (10) | 0.0055 (9) | −0.0017 (9) |
C10 | 0.0548 (14) | 0.0434 (13) | 0.0438 (13) | 0.0038 (11) | 0.0120 (10) | 0.0031 (11) |
C11 | 0.0533 (15) | 0.0524 (15) | 0.0497 (14) | 0.0072 (12) | 0.0151 (11) | −0.0009 (12) |
C12 | 0.0470 (12) | 0.0553 (17) | 0.0375 (11) | −0.0146 (12) | 0.0071 (9) | −0.0032 (11) |
C13 | 0.0625 (16) | 0.0527 (14) | 0.0427 (14) | −0.0017 (13) | 0.0068 (12) | 0.0084 (11) |
C14 | 0.0528 (14) | 0.0491 (15) | 0.0461 (14) | 0.0040 (11) | 0.0089 (11) | 0.0037 (10) |
C15 | 0.0655 (17) | 0.0646 (17) | 0.0546 (16) | −0.0084 (14) | 0.0272 (12) | −0.0055 (13) |
C16 | 0.0633 (17) | 0.0434 (14) | 0.0561 (16) | 0.0042 (12) | 0.0183 (13) | 0.0068 (11) |
C17 | 0.069 (2) | 0.0472 (17) | 0.104 (3) | −0.0002 (14) | 0.0003 (18) | −0.0102 (17) |
Br—C12 | 1.894 (2) | C9—C14 | 1.399 (3) |
S—C1 | 1.755 (3) | C10—C11 | 1.387 (4) |
S—C17 | 1.783 (3) | C10—H10 | 0.9300 |
O—C7 | 1.379 (3) | C11—C12 | 1.377 (4) |
O—C8 | 1.393 (3) | C11—H11 | 0.9300 |
C1—C8 | 1.367 (3) | C12—C13 | 1.383 (4) |
C1—C2 | 1.447 (3) | C13—C14 | 1.384 (4) |
C2—C3 | 1.393 (3) | C13—H13 | 0.9300 |
C2—C7 | 1.393 (3) | C14—H14 | 0.9300 |
C3—C4 | 1.377 (4) | C15—H15A | 0.9600 |
C3—H3 | 0.9300 | C15—H15B | 0.9600 |
C4—C5 | 1.402 (3) | C15—H15C | 0.9600 |
C4—C15 | 1.501 (3) | C16—H16A | 0.9600 |
C5—C6 | 1.387 (4) | C16—H16B | 0.9600 |
C5—H5 | 0.9300 | C16—H16C | 0.9600 |
C6—C7 | 1.382 (3) | C17—H17A | 0.9600 |
C6—C16 | 1.499 (3) | C17—H17B | 0.9600 |
C8—C9 | 1.453 (3) | C17—H17C | 0.9600 |
C9—C10 | 1.401 (3) | ||
C1—S—C17 | 100.98 (13) | C9—C10—H10 | 119.5 |
C7—O—C8 | 106.38 (17) | C12—C11—C10 | 119.3 (2) |
C8—C1—C2 | 106.9 (2) | C12—C11—H11 | 120.3 |
C8—C1—S | 129.47 (19) | C10—C11—H11 | 120.3 |
C2—C1—S | 123.58 (18) | C11—C12—C13 | 121.0 (2) |
C3—C2—C7 | 119.2 (2) | C11—C12—Br | 119.82 (19) |
C3—C2—C1 | 135.2 (2) | C13—C12—Br | 119.21 (19) |
C7—C2—C1 | 105.6 (2) | C12—C13—C14 | 119.7 (2) |
C4—C3—C2 | 118.9 (2) | C12—C13—H13 | 120.1 |
C4—C3—H3 | 120.6 | C14—C13—H13 | 120.1 |
C2—C3—H3 | 120.6 | C13—C14—C9 | 120.7 (2) |
C3—C4—C5 | 119.2 (2) | C13—C14—H14 | 119.7 |
C3—C4—C15 | 120.6 (2) | C9—C14—H14 | 119.7 |
C5—C4—C15 | 120.2 (2) | C4—C15—H15A | 109.5 |
C6—C5—C4 | 124.4 (2) | C4—C15—H15B | 109.5 |
C6—C5—H5 | 117.8 | H15A—C15—H15B | 109.5 |
C4—C5—H5 | 117.8 | C4—C15—H15C | 109.5 |
C7—C6—C5 | 113.8 (2) | H15A—C15—H15C | 109.5 |
C7—C6—C16 | 121.7 (2) | H15B—C15—H15C | 109.5 |
C5—C6—C16 | 124.5 (2) | C6—C16—H16A | 109.5 |
O—C7—C6 | 125.0 (2) | C6—C16—H16B | 109.5 |
O—C7—C2 | 110.56 (19) | H16A—C16—H16B | 109.5 |
C6—C7—C2 | 124.5 (2) | C6—C16—H16C | 109.5 |
C1—C8—O | 110.5 (2) | H16A—C16—H16C | 109.5 |
C1—C8—C9 | 135.3 (2) | H16B—C16—H16C | 109.5 |
O—C8—C9 | 114.1 (2) | S—C17—H17A | 109.5 |
C10—C9—C14 | 118.3 (2) | S—C17—H17B | 109.5 |
C10—C9—C8 | 120.2 (2) | H17A—C17—H17B | 109.5 |
C14—C9—C8 | 121.5 (2) | S—C17—H17C | 109.5 |
C11—C10—C9 | 121.0 (2) | H17A—C17—H17C | 109.5 |
C11—C10—H10 | 119.5 | H17B—C17—H17C | 109.5 |
C17—S—C1—C8 | −74.5 (3) | C3—C2—C7—C6 | −1.3 (3) |
C17—S—C1—C2 | 104.8 (2) | C1—C2—C7—C6 | 178.4 (2) |
C8—C1—C2—C3 | −180.0 (2) | C2—C1—C8—O | −0.1 (2) |
S—C1—C2—C3 | 0.6 (4) | S—C1—C8—O | 179.26 (16) |
C8—C1—C2—C7 | 0.4 (2) | C2—C1—C8—C9 | 178.2 (2) |
S—C1—C2—C7 | −179.06 (16) | S—C1—C8—C9 | −2.4 (4) |
C7—C2—C3—C4 | 0.7 (3) | C7—O—C8—C1 | −0.2 (2) |
C1—C2—C3—C4 | −178.9 (2) | C7—O—C8—C9 | −178.89 (17) |
C2—C3—C4—C5 | 0.1 (3) | C1—C8—C9—C10 | 172.7 (3) |
C2—C3—C4—C15 | −179.7 (2) | O—C8—C9—C10 | −9.0 (3) |
C3—C4—C5—C6 | −0.4 (4) | C1—C8—C9—C14 | −7.9 (4) |
C15—C4—C5—C6 | 179.4 (2) | O—C8—C9—C14 | 170.44 (19) |
C4—C5—C6—C7 | −0.2 (3) | C14—C9—C10—C11 | 0.4 (3) |
C4—C5—C6—C16 | 179.0 (2) | C8—C9—C10—C11 | 179.8 (2) |
C8—O—C7—C6 | −178.4 (2) | C9—C10—C11—C12 | −0.7 (4) |
C8—O—C7—C2 | 0.4 (2) | C10—C11—C12—C13 | 0.7 (4) |
C5—C6—C7—O | 179.7 (2) | C10—C11—C12—Br | −179.15 (18) |
C16—C6—C7—O | 0.5 (3) | C11—C12—C13—C14 | −0.3 (4) |
C5—C6—C7—C2 | 1.0 (3) | Br—C12—C13—C14 | 179.56 (18) |
C16—C6—C7—C2 | −178.2 (2) | C12—C13—C14—C9 | −0.1 (4) |
C3—C2—C7—O | 179.8 (2) | C10—C9—C14—C13 | 0.1 (3) |
C1—C2—C7—O | −0.5 (2) | C8—C9—C14—C13 | −179.4 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C15—H15A···Cgi | 0.96 | 2.97 | 3.891 (3) | 161 |
Symmetry code: (i) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C17H15BrOS |
Mr | 347.26 |
Crystal system, space group | Monoclinic, P21 |
Temperature (K) | 296 |
a, b, c (Å) | 5.2332 (1), 10.6602 (2), 13.6374 (2) |
β (°) | 98.092 (1) |
V (Å3) | 753.21 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 2.86 |
Crystal size (mm) | 0.30 × 0.24 × 0.08 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2000) |
Tmin, Tmax | 0.481, 0.804 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7779, 3448, 2957 |
Rint | 0.020 |
(sin θ/λ)max (Å−1) | 0.668 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.026, 0.066, 0.87 |
No. of reflections | 3448 |
No. of parameters | 182 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.20 |
Absolute structure | Flack (1983), 1477 Friedel pairs |
Absolute structure parameter | 0.011 (7) |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SAINT (Bruker, 2001, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998).
D—H···A | D—H | H···A | D···A | D—H···A |
C15—H15A···Cgi | 0.96 | 2.97 | 3.891 (3) | 161.1 |
Symmetry code: (i) x−1, y, z. |
References
Brandenburg, K. (1998). DIAMOND. Version 2.1. Crystal Impact GbR, Bonn, Germany. Google Scholar
Bruker (2001). SMART (Version 5.625) and SAINT (Version 6.28a). Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Choi, H. D., Seo, P. J., Son, B. W. & Lee, U. (2007a). Acta Cryst. E63, o3295. Web of Science CSD CrossRef IUCr Journals Google Scholar
Choi, H. D., Seo, P. J., Son, B. W. & Lee, U. (2007b). Acta Cryst. E63, o4282. Web of Science CSD CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Flack, H. D. (1983). Acta Cryst. A39, 876–881. CrossRef CAS Web of Science IUCr Journals Google Scholar
Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2000). SADABS. Version 2.03. University of Göttingen, Germany. Google Scholar
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As part of our continuing studies on the synthesis and structures of 2-(4-bromophenyl)-1-benzofuran derivatives, the crystal structures of 2-(4-bromophenyl)-5-methyl-3-methylsulfinyl-1-benzofuran (Choi et al., 2007a) and 2-(4-bromophenyl)-5,7-dimethyl-3-methylsulfinyl-1-benzofuran (Choi et al., 2007b) have been described to the literature. Herein we report the molecular and crystal structure of the title compound, 2-(4-bromophenyl)-5,7-dimethyl-3-methylsulfanyl-1-benzofuran (Fig. 1).
The benzofuran unit is essentially planar, with a mean deviation of 0.007 Å from the least-squares plane defined by the nine constituent atoms. The dihedral angle in the title compound formed by the plane of the benzofuran unit and the plane of the 4-bromophenyl ring is 8.4 (1)°. The molecular packing (Fig. 2) is stabilized by a CH2—H···π interaction between 5-methyl group and the benzene ring of benzofuran system, with a C15—H15A···Cgi separation of 2.97 Å (Table 1; Cg is a centroid of the C2—C7 benzene ring, symmetry code as in Fig. 2).