organic compounds
3-Cyclopentylsulfonyl-5-fluoro-2-methyl-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
There are two independent molecules, A and B, in the of the title compound, C14H15FO3S, in each of which the cyclopentyl ring adopts an The benzofuran units in each molecule are essentially planar, with mean deviations from the least-squares plane defined by the nine constituent ring atoms of 0.009 (2) Å for molecule A and 0.013 (2) Å for molecule B. In the crystal, molecules are linked by weak C—H⋯O hydrogen bonds. In the cyclopentyl ring of molecule B, one C atom is disordered over two positions with site-occupancy factors of 0.60 (2) and 0.40 (2).
Related literature
For the pharmacological activity of benzofuran compounds, see: Aslam et al. (2009); Galal et al. (2009); Khan et al. (2005). For natural products with benzofuran rings, see: Akgul & Anil (2003); Soekamto et al. (2003). For a structural study of the related compound 5-bromo-3-cyclopentylsulfinyl-2-methyl-1-benzofuran, see: Seo et al. (2011).
Experimental
Crystal data
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Refinement
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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 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536811021222/go2016sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811021222/go2016Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811021222/go2016Isup3.cml
3-chloroperoxybenzoic acid (77%, 560 mg, 2.5 mmol) was added in small portions to a stirred solution of 3-cyclopentylsulfanyl-5-fluoro-2-methyl-1-benzofuran (325 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 71%, m.p. 394-395 K; Rf = 0.49 (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 ethyl acetate at room temperature.All H atoms were positioned geometrically and refined using a riding model, with C–H = 0.95 Å for aryl, 1.00 Å for methine, 0.99 Å for methylene and 0.98 Å for methyl H atoms, respectively. Uiso(H) = 1.2Ueq(C) for aryl, methine, methylene, and 1.5Ueq(C) for methyl H atoms. The C27 atom of the cyclopentyl ring is disordered over two positions with site-ccupancy factors, from
of 0.60 (2) (part A) and 0.40 (2) (part B). The C–C distance sets were restrained to be with 0.003 Å using command DFIX and SADI, and thermal ellipsoid parameters of C27A and C27B set were restrained to 0.01 using commend ISOR.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 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C14H15FO3S | Z = 4 |
Mr = 282.32 | F(000) = 592 |
Triclinic, P1 | Dx = 1.454 Mg m−3 |
Hall symbol: -P 1 | Melting point = 394–395 K |
a = 10.0568 (8) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 10.2697 (8) Å | Cell parameters from 6383 reflections |
c = 13.2894 (10) Å | θ = 2.2–28.1° |
α = 95.033 (4)° | µ = 0.26 mm−1 |
β = 109.140 (4)° | T = 173 K |
γ = 91.229 (4)° | Block, colourless |
V = 1289.82 (17) Å3 | 0.26 × 0.24 × 0.20 mm |
Bruker SMART APEXII CCD diffractometer | 5565 independent reflections |
Radiation source: rotating anode | 4022 reflections with I > 2σ(I) |
Graphite multilayer monochromator | Rint = 0.042 |
Detector resolution: 10.0 pixels mm-1 | θmax = 27.0°, θmin = 1.6° |
ϕ and ω scans | h = −12→11 |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | k = −13→13 |
Tmin = 0.936, Tmax = 0.948 | l = −16→16 |
21777 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)] = 0.045 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.119 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0514P)2 + 0.6137P] where P = (Fo2 + 2Fc2)/3 |
5565 reflections | (Δ/σ)max = 0.001 |
361 parameters | Δρmax = 0.50 e Å−3 |
20 restraints | Δρmin = −0.31 e Å−3 |
C14H15FO3S | γ = 91.229 (4)° |
Mr = 282.32 | V = 1289.82 (17) Å3 |
Triclinic, P1 | Z = 4 |
a = 10.0568 (8) Å | Mo Kα radiation |
b = 10.2697 (8) Å | µ = 0.26 mm−1 |
c = 13.2894 (10) Å | T = 173 K |
α = 95.033 (4)° | 0.26 × 0.24 × 0.20 mm |
β = 109.140 (4)° |
Bruker SMART APEXII CCD diffractometer | 5565 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 4022 reflections with I > 2σ(I) |
Tmin = 0.936, Tmax = 0.948 | Rint = 0.042 |
21777 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 20 restraints |
wR(F2) = 0.119 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.50 e Å−3 |
5565 reflections | Δρmin = −0.31 e Å−3 |
361 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 | Occ. (<1) | |
S1 | 0.23453 (6) | 0.33785 (5) | 0.23641 (4) | 0.03150 (15) | |
F1 | 0.81952 (14) | 0.46170 (14) | 0.28853 (11) | 0.0484 (4) | |
O1 | 0.40319 (15) | 0.10269 (14) | 0.07061 (11) | 0.0326 (4) | |
O2 | 0.09116 (17) | 0.32983 (18) | 0.16639 (13) | 0.0460 (4) | |
C1 | 0.3369 (2) | 0.2567 (2) | 0.17088 (16) | 0.0269 (4) | |
C2 | 0.4835 (2) | 0.28575 (19) | 0.18530 (15) | 0.0252 (4) | |
O3 | 0.30185 (18) | 0.46418 (15) | 0.27859 (14) | 0.0438 (4) | |
C3 | 0.5859 (2) | 0.3822 (2) | 0.24350 (16) | 0.0296 (5) | |
H3 | 0.5664 | 0.4524 | 0.2872 | 0.036* | |
C4 | 0.7165 (2) | 0.3693 (2) | 0.23369 (17) | 0.0311 (5) | |
C5 | 0.7522 (2) | 0.2698 (2) | 0.17204 (18) | 0.0344 (5) | |
H5 | 0.8456 | 0.2666 | 0.1699 | 0.041* | |
C6 | 0.6504 (2) | 0.1750 (2) | 0.11357 (17) | 0.0333 (5) | |
H6 | 0.6704 | 0.1051 | 0.0699 | 0.040* | |
C7 | 0.5185 (2) | 0.1872 (2) | 0.12172 (16) | 0.0280 (5) | |
C8 | 0.2955 (2) | 0.1465 (2) | 0.10210 (16) | 0.0305 (5) | |
C9 | 0.1621 (2) | 0.0657 (2) | 0.05858 (19) | 0.0411 (6) | |
H9A | 0.1435 | 0.0392 | −0.0177 | 0.062* | |
H9B | 0.0847 | 0.1166 | 0.0675 | 0.062* | |
H9C | 0.1697 | −0.0125 | 0.0971 | 0.062* | |
C10 | 0.2422 (2) | 0.2431 (2) | 0.34337 (17) | 0.0310 (5) | |
H10 | 0.2079 | 0.1510 | 0.3140 | 0.037* | |
C11 | 0.3910 (3) | 0.2436 (2) | 0.42411 (18) | 0.0396 (6) | |
H11A | 0.4133 | 0.1548 | 0.4460 | 0.048* | |
H11B | 0.4617 | 0.2748 | 0.3933 | 0.048* | |
C12 | 0.3888 (3) | 0.3373 (3) | 0.5190 (2) | 0.0514 (7) | |
H12A | 0.4612 | 0.3171 | 0.5860 | 0.062* | |
H12B | 0.4047 | 0.4293 | 0.5070 | 0.062* | |
C13 | 0.2438 (3) | 0.3130 (3) | 0.5228 (2) | 0.0510 (7) | |
H13A | 0.2174 | 0.3868 | 0.5643 | 0.061* | |
H13B | 0.2374 | 0.2315 | 0.5560 | 0.061* | |
C14 | 0.1491 (3) | 0.3006 (2) | 0.40645 (19) | 0.0405 (6) | |
H14A | 0.1171 | 0.3872 | 0.3839 | 0.049* | |
H14B | 0.0654 | 0.2414 | 0.3954 | 0.049* | |
S2 | 0.97507 (6) | 0.86902 (6) | 0.24244 (5) | 0.03691 (16) | |
F2 | 0.43771 (16) | 0.96231 (15) | 0.28861 (13) | 0.0589 (4) | |
O4 | 0.67248 (16) | 0.60770 (14) | 0.08407 (12) | 0.0359 (4) | |
O5 | 0.93729 (18) | 1.00229 (16) | 0.24654 (16) | 0.0536 (5) | |
O6 | 1.07814 (18) | 0.83460 (19) | 0.19339 (15) | 0.0534 (5) | |
C15 | 0.8217 (2) | 0.7728 (2) | 0.17896 (17) | 0.0308 (5) | |
C16 | 0.6865 (2) | 0.7948 (2) | 0.19121 (16) | 0.0290 (5) | |
C17 | 0.6327 (2) | 0.8908 (2) | 0.24526 (17) | 0.0332 (5) | |
H17 | 0.6884 | 0.9657 | 0.2853 | 0.040* | |
C18 | 0.4942 (3) | 0.8703 (2) | 0.23702 (19) | 0.0399 (6) | |
C19 | 0.4080 (3) | 0.7648 (2) | 0.1794 (2) | 0.0424 (6) | |
H19 | 0.3129 | 0.7566 | 0.1776 | 0.051* | |
C20 | 0.4606 (2) | 0.6713 (2) | 0.12428 (19) | 0.0387 (5) | |
H20 | 0.4039 | 0.5976 | 0.0830 | 0.046* | |
C21 | 0.5994 (2) | 0.6900 (2) | 0.13206 (17) | 0.0312 (5) | |
C22 | 0.8073 (2) | 0.6592 (2) | 0.11486 (17) | 0.0334 (5) | |
C23 | 0.9032 (3) | 0.5815 (3) | 0.0738 (2) | 0.0456 (6) | |
H23A | 0.9124 | 0.4962 | 0.1026 | 0.068* | |
H23B | 0.9960 | 0.6279 | 0.0961 | 0.068* | |
H23C | 0.8650 | 0.5686 | −0.0045 | 0.068* | |
C24 | 1.0323 (2) | 0.8246 (2) | 0.37518 (18) | 0.0367 (5) | |
H24 | 0.9527 | 0.8329 | 0.4044 | 0.044* | |
C25 | 1.1571 (3) | 0.9139 (3) | 0.4469 (2) | 0.0526 (7) | |
H25A | 1.2183 | 0.9408 | 0.4064 | 0.063* | |
H25B | 1.1246 | 0.9932 | 0.4779 | 0.063* | |
C26 | 1.2325 (3) | 0.8310 (2) | 0.5315 (2) | 0.0665 (9) | |
H26A | 1.1804 | 0.8185 | 0.5819 | 0.080* | 0.60 (2) |
H26B | 1.3293 | 0.8672 | 0.5719 | 0.080* | 0.60 (2) |
H26C | 1.1987 | 0.8460 | 0.5934 | 0.080* | 0.40 (2) |
H26D | 1.3349 | 0.8542 | 0.5562 | 0.080* | 0.40 (2) |
C27A | 1.2327 (6) | 0.7051 (8) | 0.4620 (8) | 0.060 (3) | 0.60 (2) |
H27A | 1.3006 | 0.7139 | 0.4230 | 0.072* | 0.60 (2) |
H27B | 1.2574 | 0.6306 | 0.5058 | 0.072* | 0.60 (2) |
C27B | 1.1998 (14) | 0.6866 (3) | 0.4914 (7) | 0.050 (3) | 0.40 (2) |
H27C | 1.2837 | 0.6453 | 0.4824 | 0.060* | 0.40 (2) |
H27D | 1.1679 | 0.6392 | 0.5419 | 0.060* | 0.40 (2) |
C28 | 1.0829 (3) | 0.6861 (2) | 0.3846 (2) | 0.0429 (6) | |
H28A | 1.0237 | 0.6318 | 0.4132 | 0.051* | 0.60 (2) |
H28B | 1.0810 | 0.6439 | 0.3142 | 0.051* | 0.60 (2) |
H28C | 1.012 (7) | 0.612 (7) | 0.354 (5) | 0.051* | 0.40 (2) |
H28D | 1.134 (8) | 0.675 (7) | 0.343 (5) | 0.051* | 0.40 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0255 (3) | 0.0333 (3) | 0.0406 (3) | 0.0073 (2) | 0.0156 (2) | 0.0095 (2) |
F1 | 0.0306 (8) | 0.0513 (8) | 0.0585 (9) | −0.0166 (6) | 0.0147 (7) | −0.0158 (7) |
O1 | 0.0280 (8) | 0.0345 (8) | 0.0335 (8) | −0.0066 (6) | 0.0106 (7) | −0.0059 (6) |
O2 | 0.0253 (9) | 0.0664 (12) | 0.0505 (10) | 0.0139 (8) | 0.0136 (8) | 0.0204 (9) |
C1 | 0.0210 (10) | 0.0323 (11) | 0.0289 (11) | 0.0036 (8) | 0.0093 (8) | 0.0064 (9) |
C2 | 0.0241 (11) | 0.0269 (10) | 0.0266 (10) | 0.0031 (8) | 0.0103 (8) | 0.0048 (8) |
O3 | 0.0478 (10) | 0.0284 (8) | 0.0672 (11) | 0.0050 (7) | 0.0350 (9) | 0.0058 (8) |
C3 | 0.0292 (12) | 0.0291 (11) | 0.0305 (11) | −0.0005 (9) | 0.0112 (9) | −0.0016 (9) |
C4 | 0.0240 (11) | 0.0318 (11) | 0.0347 (11) | −0.0067 (9) | 0.0073 (9) | −0.0002 (9) |
C5 | 0.0247 (11) | 0.0387 (12) | 0.0418 (13) | 0.0011 (9) | 0.0139 (10) | 0.0036 (10) |
C6 | 0.0328 (12) | 0.0321 (11) | 0.0370 (12) | 0.0025 (9) | 0.0160 (10) | −0.0029 (9) |
C7 | 0.0267 (11) | 0.0287 (11) | 0.0272 (10) | −0.0035 (9) | 0.0079 (9) | 0.0003 (8) |
C8 | 0.0237 (11) | 0.0380 (12) | 0.0295 (11) | −0.0011 (9) | 0.0079 (9) | 0.0050 (9) |
C9 | 0.0302 (13) | 0.0490 (14) | 0.0402 (13) | −0.0123 (11) | 0.0086 (10) | −0.0014 (11) |
C10 | 0.0313 (12) | 0.0297 (11) | 0.0353 (11) | 0.0024 (9) | 0.0153 (9) | 0.0035 (9) |
C11 | 0.0370 (13) | 0.0476 (14) | 0.0365 (12) | 0.0095 (11) | 0.0137 (10) | 0.0082 (10) |
C12 | 0.0499 (16) | 0.0596 (17) | 0.0428 (14) | −0.0057 (13) | 0.0161 (12) | −0.0057 (12) |
C13 | 0.0549 (17) | 0.0577 (17) | 0.0448 (15) | −0.0044 (13) | 0.0266 (13) | −0.0091 (12) |
C14 | 0.0375 (14) | 0.0428 (13) | 0.0483 (14) | 0.0030 (11) | 0.0240 (11) | 0.0039 (11) |
S2 | 0.0264 (3) | 0.0356 (3) | 0.0497 (4) | 0.0012 (2) | 0.0113 (3) | 0.0147 (3) |
F2 | 0.0464 (9) | 0.0605 (10) | 0.0742 (11) | 0.0162 (8) | 0.0294 (8) | −0.0092 (8) |
O4 | 0.0350 (9) | 0.0342 (8) | 0.0360 (8) | 0.0045 (7) | 0.0096 (7) | −0.0021 (7) |
O5 | 0.0420 (10) | 0.0311 (9) | 0.0794 (13) | −0.0014 (8) | 0.0065 (9) | 0.0158 (9) |
O6 | 0.0326 (10) | 0.0718 (13) | 0.0651 (12) | 0.0029 (9) | 0.0248 (9) | 0.0214 (10) |
C15 | 0.0278 (12) | 0.0328 (11) | 0.0347 (11) | 0.0066 (9) | 0.0120 (9) | 0.0098 (9) |
C16 | 0.0262 (11) | 0.0308 (11) | 0.0301 (11) | 0.0035 (9) | 0.0081 (9) | 0.0080 (9) |
C17 | 0.0300 (12) | 0.0311 (11) | 0.0375 (12) | 0.0031 (9) | 0.0099 (10) | 0.0024 (9) |
C18 | 0.0388 (14) | 0.0397 (13) | 0.0444 (14) | 0.0123 (11) | 0.0176 (11) | 0.0041 (11) |
C19 | 0.0253 (12) | 0.0509 (15) | 0.0521 (15) | 0.0053 (11) | 0.0129 (11) | 0.0109 (12) |
C20 | 0.0291 (12) | 0.0377 (13) | 0.0443 (13) | −0.0010 (10) | 0.0059 (10) | 0.0023 (10) |
C21 | 0.0307 (12) | 0.0299 (11) | 0.0325 (11) | 0.0059 (9) | 0.0095 (9) | 0.0034 (9) |
C22 | 0.0327 (12) | 0.0372 (12) | 0.0340 (12) | 0.0086 (10) | 0.0139 (10) | 0.0102 (9) |
C23 | 0.0499 (16) | 0.0497 (15) | 0.0450 (14) | 0.0195 (12) | 0.0246 (12) | 0.0076 (11) |
C24 | 0.0318 (12) | 0.0339 (12) | 0.0417 (13) | −0.0020 (10) | 0.0091 (10) | 0.0031 (10) |
C25 | 0.0480 (16) | 0.0382 (14) | 0.0609 (17) | −0.0087 (12) | 0.0060 (13) | −0.0013 (12) |
C26 | 0.0509 (18) | 0.0546 (18) | 0.069 (2) | 0.0086 (14) | −0.0089 (15) | −0.0162 (15) |
C27A | 0.046 (3) | 0.050 (3) | 0.058 (4) | 0.016 (3) | −0.013 (3) | −0.009 (3) |
C27B | 0.059 (6) | 0.040 (4) | 0.042 (4) | 0.011 (4) | 0.005 (4) | 0.000 (3) |
C28 | 0.0407 (15) | 0.0318 (13) | 0.0478 (15) | −0.0022 (11) | 0.0034 (12) | 0.0050 (11) |
S1—O3 | 1.4289 (17) | F2—C18 | 1.360 (3) |
S1—O2 | 1.4329 (17) | O4—C22 | 1.362 (3) |
S1—C1 | 1.735 (2) | O4—C21 | 1.379 (3) |
S1—C10 | 1.774 (2) | C15—C22 | 1.358 (3) |
F1—C4 | 1.359 (2) | C15—C16 | 1.442 (3) |
O1—C8 | 1.355 (3) | C16—C21 | 1.380 (3) |
O1—C7 | 1.377 (2) | C16—C17 | 1.390 (3) |
C1—C8 | 1.356 (3) | C17—C18 | 1.372 (3) |
C1—C2 | 1.444 (3) | C17—H17 | 0.9500 |
C2—C7 | 1.387 (3) | C18—C19 | 1.375 (3) |
C2—C3 | 1.392 (3) | C19—C20 | 1.375 (3) |
C3—C4 | 1.370 (3) | C19—H19 | 0.9500 |
C3—H3 | 0.9500 | C20—C21 | 1.374 (3) |
C4—C5 | 1.381 (3) | C20—H20 | 0.9500 |
C5—C6 | 1.379 (3) | C22—C23 | 1.471 (3) |
C5—H5 | 0.9500 | C23—H23A | 0.9800 |
C6—C7 | 1.373 (3) | C23—H23B | 0.9800 |
C6—H6 | 0.9500 | C23—H23C | 0.9800 |
C8—C9 | 1.478 (3) | C24—C28 | 1.523 (3) |
C9—H9A | 0.9800 | C24—C25 | 1.529 (3) |
C9—H9B | 0.9800 | C24—H24 | 1.0000 |
C9—H9C | 0.9800 | C25—C26 | 1.484 (4) |
C10—C11 | 1.528 (3) | C25—H25A | 0.9900 |
C10—C14 | 1.543 (3) | C25—H25B | 0.9900 |
C10—H10 | 1.0000 | C26—C27B | 1.522 (2) |
C11—C12 | 1.524 (3) | C26—C27A | 1.522 (2) |
C11—H11A | 0.9900 | C26—H26A | 0.9900 |
C11—H11B | 0.9900 | C26—H26B | 0.9900 |
C12—C13 | 1.492 (4) | C26—H26C | 0.9900 |
C12—H12A | 0.9900 | C26—H26D | 0.9900 |
C12—H12B | 0.9900 | C27A—C28 | 1.5166 (18) |
C13—C14 | 1.520 (3) | C27A—H27A | 0.9900 |
C13—H13A | 0.9900 | C27A—H27B | 0.9900 |
C13—H13B | 0.9900 | C27B—C28 | 1.5171 (18) |
C14—H14A | 0.9900 | C27B—H27C | 0.9900 |
C14—H14B | 0.9900 | C27B—H27D | 0.9900 |
S2—O6 | 1.4292 (19) | C28—H28A | 0.9900 |
S2—O5 | 1.4294 (18) | C28—H28B | 0.9900 |
S2—C15 | 1.733 (2) | C28—H28C | 0.99 (7) |
S2—C24 | 1.771 (2) | C28—H28D | 0.87 (7) |
O3—S1—O2 | 118.65 (11) | F2—C18—C19 | 117.8 (2) |
O3—S1—C1 | 107.46 (10) | C17—C18—C19 | 124.8 (2) |
O2—S1—C1 | 108.81 (10) | C20—C19—C18 | 119.4 (2) |
O3—S1—C10 | 109.46 (10) | C20—C19—H19 | 120.3 |
O2—S1—C10 | 107.34 (10) | C18—C19—H19 | 120.3 |
C1—S1—C10 | 104.18 (10) | C21—C20—C19 | 116.5 (2) |
C8—O1—C7 | 107.10 (15) | C21—C20—H20 | 121.7 |
C8—C1—C2 | 107.13 (19) | C19—C20—H20 | 121.7 |
C8—C1—S1 | 125.44 (16) | C20—C21—O4 | 125.7 (2) |
C2—C1—S1 | 127.23 (16) | C20—C21—C16 | 124.1 (2) |
C7—C2—C3 | 119.14 (19) | O4—C21—C16 | 110.18 (19) |
C7—C2—C1 | 104.77 (17) | C15—C22—O4 | 110.5 (2) |
C3—C2—C1 | 136.1 (2) | C15—C22—C23 | 134.7 (2) |
C4—C3—C2 | 115.69 (19) | O4—C22—C23 | 114.8 (2) |
C4—C3—H3 | 122.2 | C22—C23—H23A | 109.5 |
C2—C3—H3 | 122.2 | C22—C23—H23B | 109.5 |
F1—C4—C3 | 117.72 (19) | H23A—C23—H23B | 109.5 |
F1—C4—C5 | 117.06 (19) | C22—C23—H23C | 109.5 |
C3—C4—C5 | 125.22 (19) | H23A—C23—H23C | 109.5 |
C6—C5—C4 | 119.1 (2) | H23B—C23—H23C | 109.5 |
C6—C5—H5 | 120.5 | C28—C24—C25 | 105.42 (19) |
C4—C5—H5 | 120.5 | C28—C24—S2 | 113.88 (17) |
C7—C6—C5 | 116.5 (2) | C25—C24—S2 | 111.11 (17) |
C7—C6—H6 | 121.8 | C28—C24—H24 | 108.8 |
C5—C6—H6 | 121.8 | C25—C24—H24 | 108.8 |
C6—C7—O1 | 125.45 (19) | S2—C24—H24 | 108.8 |
C6—C7—C2 | 124.39 (19) | C26—C25—C24 | 103.5 (2) |
O1—C7—C2 | 110.14 (18) | C26—C25—H25A | 111.1 |
O1—C8—C1 | 110.84 (17) | C24—C25—H25A | 111.1 |
O1—C8—C9 | 115.52 (19) | C26—C25—H25B | 111.1 |
C1—C8—C9 | 133.6 (2) | C24—C25—H25B | 111.1 |
C8—C9—H9A | 109.5 | H25A—C25—H25B | 109.0 |
C8—C9—H9B | 109.5 | C25—C26—C27B | 110.6 (2) |
H9A—C9—H9B | 109.5 | C25—C26—C27A | 99.5 (5) |
C8—C9—H9C | 109.5 | C25—C26—H26A | 111.9 |
H9A—C9—H9C | 109.5 | C27B—C26—H26A | 88.1 |
H9B—C9—H9C | 109.5 | C27A—C26—H26A | 111.9 |
C11—C10—C14 | 106.14 (18) | C25—C26—H26B | 111.9 |
C11—C10—S1 | 112.41 (15) | C27B—C26—H26B | 122.4 |
C14—C10—S1 | 110.05 (16) | C27A—C26—H26B | 111.9 |
C11—C10—H10 | 109.4 | H26A—C26—H26B | 109.6 |
C14—C10—H10 | 109.4 | C25—C26—H26C | 109.7 |
S1—C10—H10 | 109.4 | C27B—C26—H26C | 106.2 |
C12—C11—C10 | 104.7 (2) | C27A—C26—H26C | 129.9 |
C12—C11—H11A | 110.8 | H26B—C26—H26C | 94.1 |
C10—C11—H11A | 110.8 | C25—C26—H26D | 110.0 |
C12—C11—H11B | 110.8 | C27B—C26—H26D | 111.9 |
C10—C11—H11B | 110.8 | C27A—C26—H26D | 98.1 |
H11A—C11—H11B | 108.9 | H26A—C26—H26D | 122.4 |
C13—C12—C11 | 103.0 (2) | H26C—C26—H26D | 108.3 |
C13—C12—H12A | 111.2 | C28—C27A—C26 | 104.3 (2) |
C11—C12—H12A | 111.2 | C28—C27A—H27A | 110.9 |
C13—C12—H12B | 111.2 | C26—C27A—H27A | 110.9 |
C11—C12—H12B | 111.2 | C28—C27A—H27B | 110.9 |
H12A—C12—H12B | 109.1 | C26—C27A—H27B | 110.9 |
C12—C13—C14 | 104.7 (2) | H27A—C27A—H27B | 108.9 |
C12—C13—H13A | 110.8 | C26—C27A—H28D | 124 (3) |
C14—C13—H13A | 110.8 | H27A—C27A—H28D | 78.9 |
C12—C13—H13B | 110.8 | H27B—C27A—H28D | 117.5 |
C14—C13—H13B | 110.8 | C28—C27B—C26 | 104.3 (2) |
H13A—C13—H13B | 108.9 | C28—C27B—H27C | 110.9 |
C13—C14—C10 | 104.66 (19) | C26—C27B—H27C | 110.9 |
C13—C14—H14A | 110.8 | C28—C27B—H27D | 110.9 |
C10—C14—H14A | 110.8 | C26—C27B—H27D | 110.9 |
C13—C14—H14B | 110.8 | H27C—C27B—H27D | 108.9 |
C10—C14—H14B | 110.8 | C27A—C28—C24 | 103.9 (3) |
H14A—C14—H14B | 108.9 | C27B—C28—C24 | 107.6 (3) |
O6—S2—O5 | 118.23 (11) | C27A—C28—H28A | 111.0 |
O6—S2—C15 | 109.20 (11) | C27B—C28—H28A | 88.1 |
O5—S2—C15 | 107.56 (10) | C24—C28—H28A | 111.0 |
O6—S2—C24 | 109.04 (11) | C27A—C28—H28B | 111.0 |
O5—S2—C24 | 107.64 (11) | C27B—C28—H28B | 127.7 |
C15—S2—C24 | 104.28 (10) | C24—C28—H28B | 111.0 |
C22—O4—C21 | 107.03 (16) | H28A—C28—H28B | 109.0 |
C22—C15—C16 | 107.17 (19) | C27A—C28—H28C | 137 (4) |
C22—C15—S2 | 127.18 (18) | C27B—C28—H28C | 123 (4) |
C16—C15—S2 | 125.52 (17) | C24—C28—H28C | 118 (4) |
C21—C16—C17 | 119.4 (2) | H28A—C28—H28C | 45.4 |
C21—C16—C15 | 105.14 (19) | H28B—C28—H28C | 64.8 |
C17—C16—C15 | 135.4 (2) | C27A—C28—H28D | 76 (4) |
C18—C17—C16 | 115.7 (2) | C27B—C28—H28D | 98 (5) |
C18—C17—H17 | 122.2 | C24—C28—H28D | 107 (5) |
C16—C17—H17 | 122.2 | H28A—C28—H28D | 137.9 |
F2—C18—C17 | 117.4 (2) | H28C—C28—H28D | 100 (6) |
O3—S1—C1—C8 | −165.58 (19) | C24—S2—C15—C16 | 76.3 (2) |
O2—S1—C1—C8 | −35.9 (2) | C22—C15—C16—C21 | 0.1 (2) |
C10—S1—C1—C8 | 78.3 (2) | S2—C15—C16—C21 | −176.02 (16) |
O3—S1—C1—C2 | 20.1 (2) | C22—C15—C16—C17 | −180.0 (2) |
O2—S1—C1—C2 | 149.75 (18) | S2—C15—C16—C17 | 3.9 (4) |
C10—S1—C1—C2 | −96.00 (19) | C21—C16—C17—C18 | 1.7 (3) |
C8—C1—C2—C7 | 0.0 (2) | C15—C16—C17—C18 | −178.2 (2) |
S1—C1—C2—C7 | 175.20 (16) | C16—C17—C18—F2 | −179.82 (19) |
C8—C1—C2—C3 | 179.9 (2) | C16—C17—C18—C19 | −0.8 (4) |
S1—C1—C2—C3 | −4.9 (4) | F2—C18—C19—C20 | 178.6 (2) |
C7—C2—C3—C4 | −1.0 (3) | C17—C18—C19—C20 | −0.5 (4) |
C1—C2—C3—C4 | 179.1 (2) | C18—C19—C20—C21 | 0.7 (3) |
C2—C3—C4—F1 | 179.56 (18) | C19—C20—C21—O4 | 179.4 (2) |
C2—C3—C4—C5 | −0.2 (3) | C19—C20—C21—C16 | 0.3 (3) |
F1—C4—C5—C6 | −178.90 (19) | C22—O4—C21—C20 | −177.9 (2) |
C3—C4—C5—C6 | 0.9 (4) | C22—O4—C21—C16 | 1.3 (2) |
C4—C5—C6—C7 | −0.2 (3) | C17—C16—C21—C20 | −1.6 (3) |
C5—C6—C7—O1 | −179.5 (2) | C15—C16—C21—C20 | 178.4 (2) |
C5—C6—C7—C2 | −1.1 (3) | C17—C16—C21—O4 | 179.21 (18) |
C8—O1—C7—C6 | 178.1 (2) | C15—C16—C21—O4 | −0.8 (2) |
C8—O1—C7—C2 | −0.5 (2) | C16—C15—C22—O4 | 0.7 (2) |
C3—C2—C7—C6 | 1.8 (3) | S2—C15—C22—O4 | 176.73 (15) |
C1—C2—C7—C6 | −178.4 (2) | C16—C15—C22—C23 | −178.4 (2) |
C3—C2—C7—O1 | −179.60 (17) | S2—C15—C22—C23 | −2.4 (4) |
C1—C2—C7—O1 | 0.3 (2) | C21—O4—C22—C15 | −1.2 (2) |
C7—O1—C8—C1 | 0.5 (2) | C21—O4—C22—C23 | 178.08 (18) |
C7—O1—C8—C9 | −177.92 (18) | O6—S2—C24—C28 | −47.9 (2) |
C2—C1—C8—O1 | −0.3 (2) | O5—S2—C24—C28 | −177.32 (17) |
S1—C1—C8—O1 | −175.62 (14) | C15—S2—C24—C28 | 68.63 (19) |
C2—C1—C8—C9 | 177.7 (2) | O6—S2—C24—C25 | 70.9 (2) |
S1—C1—C8—C9 | 2.4 (4) | O5—S2—C24—C25 | −58.5 (2) |
O3—S1—C10—C11 | −50.09 (18) | C15—S2—C24—C25 | −172.52 (18) |
O2—S1—C10—C11 | 179.88 (16) | C28—C24—C25—C26 | −29.6 (3) |
C1—S1—C10—C11 | 64.59 (18) | S2—C24—C25—C26 | −153.4 (2) |
O3—S1—C10—C14 | 67.98 (17) | C24—C25—C26—C27B | 23.9 (8) |
O2—S1—C10—C14 | −62.05 (17) | C24—C25—C26—C27A | 45.8 (5) |
C1—S1—C10—C14 | −177.34 (15) | C25—C26—C27A—C28 | −46.0 (9) |
C14—C10—C11—C12 | −17.1 (2) | C27B—C26—C27A—C28 | 74.3 (4) |
S1—C10—C11—C12 | 103.3 (2) | C25—C26—C27B—C28 | −8.7 (12) |
C10—C11—C12—C13 | 36.0 (3) | C27A—C26—C27B—C28 | −74.2 (4) |
C11—C12—C13—C14 | −41.4 (3) | C26—C27A—C28—C27B | −74.3 (4) |
C12—C13—C14—C10 | 30.6 (3) | C26—C27A—C28—C24 | 27.8 (10) |
C11—C10—C14—C13 | −7.9 (2) | C26—C27B—C28—C27A | 74.2 (4) |
S1—C10—C14—C13 | −129.75 (18) | C26—C27B—C28—C24 | −10.5 (12) |
O6—S2—C15—C22 | 17.4 (2) | C25—C24—C28—C27A | 0.6 (7) |
O5—S2—C15—C22 | 146.8 (2) | S2—C24—C28—C27A | 122.7 (6) |
C24—S2—C15—C22 | −99.1 (2) | C25—C24—C28—C27B | 25.2 (8) |
O6—S2—C15—C16 | −167.32 (18) | S2—C24—C28—C27B | 147.2 (8) |
O5—S2—C15—C16 | −37.9 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9C···O6i | 0.98 | 2.45 | 3.348 (3) | 152 |
C19—H19···O6ii | 0.95 | 2.58 | 3.469 (3) | 157 |
C23—H23A···O2iii | 0.98 | 2.50 | 3.318 (3) | 141 |
Symmetry codes: (i) x−1, y−1, z; (ii) x−1, y, z; (iii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C14H15FO3S |
Mr | 282.32 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 173 |
a, b, c (Å) | 10.0568 (8), 10.2697 (8), 13.2894 (10) |
α, β, γ (°) | 95.033 (4), 109.140 (4), 91.229 (4) |
V (Å3) | 1289.82 (17) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.26 |
Crystal size (mm) | 0.26 × 0.24 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.936, 0.948 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21777, 5565, 4022 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.119, 1.03 |
No. of reflections | 5565 |
No. of parameters | 361 |
No. of restraints | 20 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.50, −0.31 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 1998).
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9C···O6i | 0.98 | 2.45 | 3.348 (3) | 152 |
C19—H19···O6ii | 0.95 | 2.58 | 3.469 (3) | 157 |
C23—H23A···O2iii | 0.98 | 2.50 | 3.318 (3) | 141 |
Symmetry codes: (i) x−1, y−1, z; (ii) x−1, y, z; (iii) x+1, y, z. |
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.
Many compounds having a benzofuran moiety have attracted much attention due to their valuable biological properties such as antifungal, antimicrobial, antitumor and antiviral activities (Aslam et al., 2009; Galal et al., 2009; Khan et al., 2005). These benzofuran derivatives occur in a wide range of natural products (Akgul & Anil, 2003; Soekamto et al., 2003). As a part of our ongoing studies of the substituent effect on the solid state structures of 3-cyclopentylsulfinyl-5-halo-2-methyl-1-benzofuran analogues (Seo et al., 2011), we report herein on the crystal structure of the title compound.
The asymmetric unit of the title compound is shown in Fig. 1. There are two independent unique molecules [labelled A & B] in which the benzofuran unit is essentially planar, with a mean deviation of 0.009 (2) Å for A and 0.013 (2) Å for B, respectively, from the least-squares plane defined by the nine constituent atoms. The cyclopentyl rings of both molecules are in an envelope form. In the cyclopentyl ring of molecule B, C27 atom is disordered over two positions with site-occupancy factors, from refinement of 0.60 (2) (part 1) and 0.40 (8) (part 2). In the crystal packing (Fig. 2), molecules are linked by weak non-classical intermolecular C–H···O hydrogen bonds; the first one between a methyl H atom and the O atom of the sulfonyl group (Table 1; C9–H9C···O6i), the second one between a benzene H atom and the O atom of the sulfonyl group (Table 1; C19–H19···O6ii), and the third one between a methyl H atom and the O atom of the sulfonyl group (Table 1; C23–H23A···O2iii).