organic compounds
7-Bromo-2-phenyl-1-(phenylsulfinyl)naphtho[2,1-b]furan benzene hemisolvate
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, C24H15BrO2S·0.5C6H6, crystallizes as a benzene hemisolvate. The O atom and the phenyl group of the phenylsulfinyl substituent lie on opposite sides of the plane of the naphthofuran fragment, and the phenyl ring is almost perpendicular to the plane of the naphthofuran fragment [83.78 (8)°] and is tilted slightly towards it. The 2-phenyl ring is rotated out of the naphthofuran plane by a dihedral angle of 25.2 (1)°. The is stabilized by aromatic π–π interactions between the central benzene ring and the furan ring of the neighbouring naphthofuran systems [centroid–centroid distance = 3.611 (3) Å], and by intermolecular C—H⋯π interactions between the benzene H atom of the phenylsulfinyl substituent and the 2-phenyl ring of an adjacent molecule. In addition, the exhibits a weak non-classical intermolecular C—H⋯O hydrogen bond.
Related literature
For the crystal structures of similar 7–bromonaphtho[2,1–b]furan derivatives, see: Choi et al. (2007, 2008). For details of the biological and pharmacological activity of naphthofuran compounds, see: Goel & Dixit (2004); Hagiwara et al. (1999); Piloto et al. (2005).
Experimental
Crystal data
|
Refinement
|
Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); 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/S1600536809025860/fl2249sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809025860/fl2249Isup2.hkl
3-chloroperoxybenzoic acid (77%, 217 mg, 0.88 mmol) was added in small portions to a stirred solution of 7-bromo-2-phenyl-1-(phenylsulfanyl)naphtho[2,1–b]furan (345 mg, 0.8 mmol) in dichloromethane (40 mL) at 273 K. After being stirred at room temperature for 4h, the mixture was washed with saturated sodium bicarbonate solution and the organic layer was separated, dried over magnesium sulfate, filtered and concentrated in vacuum. The residue was purified by
(hexane-ethyl acetate, 2:1 v/v) to afford the title compound as a colorless solid [yield 78%, m.p. 448–449 K; Rf = 0.60 (hexane-ethyl acetate, 2:1 v/v)]. Single crystals suitable for X–ray diffraction were prepared by slow evaporation of a solution of the title compound in benzene at room temperature.All H atoms were positioned geometrically and refined using a riding model, with C—H = 0.93 Å for aromatic H atoms and with Uiso(H) = 1.2Ueq(C) for aromatic H atoms. The distances of C—C in the solvated benzene ring were restrained to 1.40 (1) Å using command DFIX.
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); 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).C24H15BrO2S·0.5C6H6 | Z = 2 |
Mr = 486.38 | F(000) = 494 |
Triclinic, P1 | Dx = 1.468 Mg m−3 |
Hall symbol: -p 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.154 (1) Å | Cell parameters from 3339 reflections |
b = 10.268 (2) Å | θ = 2.4–26.4° |
c = 13.771 (2) Å | µ = 1.98 mm−1 |
α = 80.656 (2)° | T = 298 K |
β = 86.431 (2)° | Block, colorless |
γ = 75.377 (2)° | 0.40 × 0.10 × 0.10 mm |
V = 1100.6 (3) Å3 |
Bruker SMART CCD diffractometer | 3870 independent reflections |
Radiation source: fine-focus sealed tube | 2968 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
Detector resolution: 10.0 pixels mm-1 | θmax = 25.0°, θmin = 1.5° |
ϕ and ω scans | h = −9→9 |
Absorption correction: multi-scan (SADABS; Sheldrick, 1999) | k = −12→12 |
Tmin = 0.504, Tmax = 0.826 | l = −16→16 |
8221 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)] = 0.035 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.091 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0375P)2 + 0.6613P] where P = (Fo2 + 2Fc2)/3 |
3870 reflections | (Δ/σ)max < 0.001 |
280 parameters | Δρmax = 0.41 e Å−3 |
3 restraints | Δρmin = −0.74 e Å−3 |
C24H15BrO2S·0.5C6H6 | γ = 75.377 (2)° |
Mr = 486.38 | V = 1100.6 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.154 (1) Å | Mo Kα radiation |
b = 10.268 (2) Å | µ = 1.98 mm−1 |
c = 13.771 (2) Å | T = 298 K |
α = 80.656 (2)° | 0.40 × 0.10 × 0.10 mm |
β = 86.431 (2)° |
Bruker SMART CCD diffractometer | 3870 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1999) | 2968 reflections with I > 2σ(I) |
Tmin = 0.504, Tmax = 0.826 | Rint = 0.022 |
8221 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 3 restraints |
wR(F2) = 0.091 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.41 e Å−3 |
3870 reflections | Δρmin = −0.74 e Å−3 |
280 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 | ||
Br | 1.02842 (5) | 0.72284 (4) | 0.21176 (3) | 0.06839 (16) | |
S | 0.47922 (8) | 0.81504 (7) | 0.68119 (5) | 0.03579 (18) | |
O1 | 0.5475 (2) | 0.41820 (18) | 0.70208 (14) | 0.0414 (5) | |
O2 | 0.4093 (2) | 0.90091 (19) | 0.58833 (15) | 0.0458 (5) | |
C1 | 0.5365 (3) | 0.6416 (3) | 0.66622 (19) | 0.0329 (6) | |
C2 | 0.6310 (3) | 0.5754 (3) | 0.58705 (19) | 0.0338 (6) | |
C3 | 0.7147 (3) | 0.6160 (3) | 0.4973 (2) | 0.0351 (6) | |
C4 | 0.7098 (4) | 0.7522 (3) | 0.4566 (2) | 0.0402 (7) | |
H4 | 0.6442 | 0.8226 | 0.4874 | 0.048* | |
C5 | 0.8001 (4) | 0.7824 (3) | 0.3723 (2) | 0.0440 (7) | |
H5 | 0.7966 | 0.8725 | 0.3465 | 0.053* | |
C6 | 0.8974 (4) | 0.6769 (4) | 0.3254 (2) | 0.0459 (7) | |
C7 | 0.8991 (4) | 0.5447 (3) | 0.3587 (2) | 0.0475 (8) | |
H7 | 0.9617 | 0.4767 | 0.3246 | 0.057* | |
C8 | 0.8064 (3) | 0.5098 (3) | 0.4450 (2) | 0.0395 (7) | |
C9 | 0.8021 (4) | 0.3721 (3) | 0.4790 (2) | 0.0486 (8) | |
H9 | 0.8611 | 0.3048 | 0.4432 | 0.058* | |
C10 | 0.7148 (4) | 0.3359 (3) | 0.5616 (2) | 0.0475 (7) | |
H10 | 0.7102 | 0.2460 | 0.5823 | 0.057* | |
C11 | 0.6323 (3) | 0.4400 (3) | 0.6141 (2) | 0.0386 (6) | |
C12 | 0.4902 (3) | 0.5427 (3) | 0.7334 (2) | 0.0362 (6) | |
C13 | 0.3985 (3) | 0.5386 (3) | 0.8286 (2) | 0.0369 (6) | |
C14 | 0.3248 (4) | 0.4299 (3) | 0.8606 (2) | 0.0483 (8) | |
H14 | 0.3349 | 0.3620 | 0.8218 | 0.058* | |
C15 | 0.2368 (4) | 0.4225 (4) | 0.9498 (2) | 0.0558 (9) | |
H15 | 0.1892 | 0.3491 | 0.9708 | 0.067* | |
C16 | 0.2190 (4) | 0.5227 (4) | 1.0078 (2) | 0.0545 (8) | |
H16 | 0.1571 | 0.5184 | 1.0668 | 0.065* | |
C17 | 0.2934 (4) | 0.6293 (3) | 0.9780 (2) | 0.0487 (8) | |
H17 | 0.2833 | 0.6964 | 1.0176 | 0.058* | |
C18 | 0.3836 (4) | 0.6372 (3) | 0.8893 (2) | 0.0438 (7) | |
H18 | 0.4345 | 0.7091 | 0.8702 | 0.053* | |
C19 | 0.6897 (3) | 0.8360 (3) | 0.6940 (2) | 0.0360 (6) | |
C20 | 0.7429 (4) | 0.9400 (3) | 0.6352 (2) | 0.0482 (8) | |
H20 | 0.6740 | 0.9970 | 0.5864 | 0.058* | |
C21 | 0.9020 (4) | 0.9576 (4) | 0.6506 (3) | 0.0625 (9) | |
H21 | 0.9417 | 1.0254 | 0.6101 | 0.075* | |
C22 | 1.0016 (4) | 0.8762 (4) | 0.7248 (3) | 0.0636 (10) | |
H22 | 1.1070 | 0.8903 | 0.7353 | 0.076* | |
C23 | 0.9455 (4) | 0.7741 (4) | 0.7834 (3) | 0.0593 (9) | |
H23 | 1.0130 | 0.7191 | 0.8337 | 0.071* | |
C24 | 0.7895 (4) | 0.7527 (3) | 0.7681 (2) | 0.0476 (7) | |
H24 | 0.7519 | 0.6829 | 0.8074 | 0.057* | |
C25 | 0.599 (4) | 0.0294 (11) | 0.9196 (17) | 0.195 (5) | |
H25 | 0.6656 | 0.0503 | 0.8648 | 0.233* | |
C26 | 0.432 (5) | 0.0346 (11) | 0.9090 (14) | 0.191 (5) | |
H26 | 0.3862 | 0.0575 | 0.8466 | 0.229* | |
C27 | 0.3318 (17) | 0.0065 (14) | 0.989 (3) | 0.204 (5) | |
H27 | 0.2177 | 0.0118 | 0.9810 | 0.245* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br | 0.0633 (2) | 0.1022 (3) | 0.0468 (2) | −0.0310 (2) | 0.01776 (16) | −0.02234 (19) |
S | 0.0340 (4) | 0.0318 (4) | 0.0395 (4) | −0.0043 (3) | 0.0015 (3) | −0.0064 (3) |
O1 | 0.0450 (11) | 0.0316 (10) | 0.0488 (12) | −0.0119 (9) | 0.0004 (9) | −0.0058 (9) |
O2 | 0.0412 (11) | 0.0394 (11) | 0.0493 (12) | −0.0007 (9) | −0.0051 (9) | 0.0019 (9) |
C1 | 0.0308 (14) | 0.0307 (14) | 0.0374 (15) | −0.0069 (11) | −0.0039 (11) | −0.0050 (12) |
C2 | 0.0304 (14) | 0.0321 (15) | 0.0382 (15) | −0.0040 (11) | −0.0042 (11) | −0.0078 (12) |
C3 | 0.0296 (14) | 0.0386 (16) | 0.0379 (15) | −0.0054 (12) | −0.0032 (11) | −0.0122 (13) |
C4 | 0.0390 (15) | 0.0408 (17) | 0.0406 (16) | −0.0072 (13) | 0.0020 (12) | −0.0109 (13) |
C5 | 0.0438 (16) | 0.0482 (18) | 0.0411 (17) | −0.0133 (14) | 0.0013 (13) | −0.0081 (14) |
C6 | 0.0370 (16) | 0.067 (2) | 0.0376 (16) | −0.0148 (15) | 0.0028 (13) | −0.0161 (15) |
C7 | 0.0379 (16) | 0.061 (2) | 0.0458 (18) | −0.0050 (15) | −0.0007 (13) | −0.0255 (16) |
C8 | 0.0324 (14) | 0.0437 (17) | 0.0432 (16) | −0.0031 (13) | −0.0054 (12) | −0.0172 (14) |
C9 | 0.0453 (17) | 0.0418 (18) | 0.059 (2) | −0.0006 (14) | −0.0038 (15) | −0.0248 (15) |
C10 | 0.0506 (18) | 0.0345 (17) | 0.058 (2) | −0.0077 (14) | −0.0061 (15) | −0.0115 (15) |
C11 | 0.0372 (15) | 0.0357 (16) | 0.0438 (16) | −0.0082 (13) | −0.0051 (13) | −0.0081 (13) |
C12 | 0.0324 (14) | 0.0357 (16) | 0.0409 (16) | −0.0086 (12) | −0.0059 (12) | −0.0050 (13) |
C13 | 0.0325 (14) | 0.0393 (16) | 0.0380 (16) | −0.0101 (12) | −0.0064 (12) | 0.0008 (13) |
C14 | 0.0516 (18) | 0.0526 (19) | 0.0446 (18) | −0.0212 (15) | −0.0074 (14) | −0.0030 (15) |
C15 | 0.058 (2) | 0.062 (2) | 0.0495 (19) | −0.0296 (17) | 0.0002 (16) | 0.0068 (17) |
C16 | 0.0504 (19) | 0.070 (2) | 0.0393 (17) | −0.0151 (17) | 0.0028 (14) | 0.0013 (17) |
C17 | 0.0518 (18) | 0.0525 (19) | 0.0388 (17) | −0.0080 (15) | −0.0019 (14) | −0.0061 (14) |
C18 | 0.0456 (17) | 0.0441 (17) | 0.0413 (17) | −0.0136 (14) | −0.0035 (13) | −0.0004 (14) |
C19 | 0.0354 (14) | 0.0325 (15) | 0.0400 (16) | −0.0052 (12) | −0.0016 (12) | −0.0097 (12) |
C20 | 0.0523 (19) | 0.0350 (17) | 0.058 (2) | −0.0147 (14) | −0.0078 (15) | 0.0010 (14) |
C21 | 0.059 (2) | 0.050 (2) | 0.084 (3) | −0.0277 (18) | 0.0003 (19) | −0.0043 (19) |
C22 | 0.0402 (18) | 0.060 (2) | 0.096 (3) | −0.0156 (17) | −0.0098 (19) | −0.018 (2) |
C23 | 0.0481 (19) | 0.058 (2) | 0.069 (2) | −0.0060 (17) | −0.0187 (17) | −0.0054 (18) |
C24 | 0.0461 (18) | 0.0440 (18) | 0.0513 (19) | −0.0105 (15) | −0.0059 (14) | −0.0023 (15) |
C25 | 0.28 (2) | 0.110 (6) | 0.176 (15) | 0.006 (9) | 0.013 (10) | −0.058 (7) |
C26 | 0.268 (19) | 0.109 (6) | 0.179 (15) | 0.019 (10) | −0.068 (14) | −0.052 (8) |
C27 | 0.211 (11) | 0.117 (7) | 0.281 (16) | 0.002 (8) | −0.05 (2) | −0.074 (10) |
Br—C6 | 1.902 (3) | C14—C15 | 1.385 (4) |
S—O2 | 1.486 (2) | C14—H14 | 0.9300 |
S—C1 | 1.767 (3) | C15—C16 | 1.376 (5) |
S—C19 | 1.805 (3) | C15—H15 | 0.9300 |
O1—C11 | 1.371 (3) | C16—C17 | 1.375 (4) |
O1—C12 | 1.375 (3) | C16—H16 | 0.9300 |
C1—C12 | 1.369 (4) | C17—C18 | 1.388 (4) |
C1—C2 | 1.455 (4) | C17—H17 | 0.9300 |
C2—C11 | 1.377 (4) | C18—H18 | 0.9300 |
C2—C3 | 1.428 (4) | C19—C20 | 1.376 (4) |
C3—C4 | 1.411 (4) | C19—C24 | 1.379 (4) |
C3—C8 | 1.429 (4) | C20—C21 | 1.387 (4) |
C4—C5 | 1.370 (4) | C20—H20 | 0.9300 |
C4—H4 | 0.9300 | C21—C22 | 1.373 (5) |
C5—C6 | 1.396 (4) | C21—H21 | 0.9300 |
C5—H5 | 0.9300 | C22—C23 | 1.371 (5) |
C6—C7 | 1.357 (4) | C22—H22 | 0.9300 |
C7—C8 | 1.414 (4) | C23—C24 | 1.379 (4) |
C7—H7 | 0.9300 | C23—H23 | 0.9300 |
C8—C9 | 1.423 (4) | C24—H24 | 0.9300 |
C9—C10 | 1.354 (4) | C25—C26 | 1.37 (5) |
C9—H9 | 0.9300 | C25—C27i | 1.37 (4) |
C10—C11 | 1.396 (4) | C25—H25 | 0.9300 |
C10—H10 | 0.9300 | C26—C27 | 1.37 (4) |
C12—C13 | 1.468 (4) | C26—H26 | 0.9300 |
C13—C18 | 1.391 (4) | C27—C25i | 1.37 (4) |
C13—C14 | 1.396 (4) | C27—H27 | 0.9300 |
O2—S—C1 | 110.10 (12) | C15—C14—C13 | 120.4 (3) |
O2—S—C19 | 107.93 (12) | C15—C14—H14 | 119.8 |
C1—S—C19 | 97.94 (12) | C13—C14—H14 | 119.8 |
C11—O1—C12 | 106.8 (2) | C16—C15—C14 | 120.7 (3) |
C12—C1—C2 | 107.4 (2) | C16—C15—H15 | 119.7 |
C12—C1—S | 122.2 (2) | C14—C15—H15 | 119.7 |
C2—C1—S | 130.4 (2) | C17—C16—C15 | 119.6 (3) |
C11—C2—C3 | 119.0 (2) | C17—C16—H16 | 120.2 |
C11—C2—C1 | 104.3 (2) | C15—C16—H16 | 120.2 |
C3—C2—C1 | 136.7 (2) | C16—C17—C18 | 120.3 (3) |
C4—C3—C2 | 124.6 (2) | C16—C17—H17 | 119.8 |
C4—C3—C8 | 118.6 (3) | C18—C17—H17 | 119.8 |
C2—C3—C8 | 116.7 (3) | C17—C18—C13 | 120.7 (3) |
C5—C4—C3 | 121.0 (3) | C17—C18—H18 | 119.7 |
C5—C4—H4 | 119.5 | C13—C18—H18 | 119.7 |
C3—C4—H4 | 119.5 | C20—C19—C24 | 121.2 (3) |
C4—C5—C6 | 119.6 (3) | C20—C19—S | 119.9 (2) |
C4—C5—H5 | 120.2 | C24—C19—S | 118.7 (2) |
C6—C5—H5 | 120.2 | C19—C20—C21 | 118.4 (3) |
C7—C6—C5 | 121.6 (3) | C19—C20—H20 | 120.8 |
C7—C6—Br | 120.2 (2) | C21—C20—H20 | 120.8 |
C5—C6—Br | 118.2 (2) | C22—C21—C20 | 120.8 (3) |
C6—C7—C8 | 120.4 (3) | C22—C21—H21 | 119.6 |
C6—C7—H7 | 119.8 | C20—C21—H21 | 119.6 |
C8—C7—H7 | 119.8 | C23—C22—C21 | 119.9 (3) |
C7—C8—C9 | 121.1 (3) | C23—C22—H22 | 120.0 |
C7—C8—C3 | 118.6 (3) | C21—C22—H22 | 120.0 |
C9—C8—C3 | 120.3 (3) | C22—C23—C24 | 120.3 (3) |
C10—C9—C8 | 122.2 (3) | C22—C23—H23 | 119.8 |
C10—C9—H9 | 118.9 | C24—C23—H23 | 119.8 |
C8—C9—H9 | 118.9 | C23—C24—C19 | 119.3 (3) |
C9—C10—C11 | 116.7 (3) | C23—C24—H24 | 120.3 |
C9—C10—H10 | 121.7 | C19—C24—H24 | 120.3 |
C11—C10—H10 | 121.7 | C26—C25—C27i | 119.8 (11) |
O1—C11—C2 | 111.6 (2) | C26—C25—H25 | 120.1 |
O1—C11—C10 | 123.5 (3) | C27i—C25—H25 | 120.1 |
C2—C11—C10 | 124.9 (3) | C25—C26—C27 | 120.9 (12) |
C1—C12—O1 | 109.9 (2) | C25—C26—H26 | 119.5 |
C1—C12—C13 | 135.7 (3) | C27—C26—H26 | 119.5 |
O1—C12—C13 | 114.5 (2) | C26—C27—C25i | 119.3 (11) |
C18—C13—C14 | 118.3 (3) | C26—C27—H27 | 120.4 |
C18—C13—C12 | 123.1 (3) | C25i—C27—H27 | 120.4 |
C14—C13—C12 | 118.6 (3) | ||
O2—S—C1—C12 | −132.3 (2) | C9—C10—C11—O1 | −176.0 (3) |
C19—S—C1—C12 | 115.2 (2) | C9—C10—C11—C2 | 1.2 (4) |
O2—S—C1—C2 | 46.3 (3) | C2—C1—C12—O1 | −0.6 (3) |
C19—S—C1—C2 | −66.2 (3) | S—C1—C12—O1 | 178.36 (17) |
C12—C1—C2—C11 | 0.4 (3) | C2—C1—C12—C13 | 178.5 (3) |
S—C1—C2—C11 | −178.4 (2) | S—C1—C12—C13 | −2.6 (4) |
C12—C1—C2—C3 | −179.2 (3) | C11—O1—C12—C1 | 0.5 (3) |
S—C1—C2—C3 | 2.0 (5) | C11—O1—C12—C13 | −178.8 (2) |
C11—C2—C3—C4 | 173.8 (3) | C1—C12—C13—C18 | −22.7 (5) |
C1—C2—C3—C4 | −6.6 (5) | O1—C12—C13—C18 | 156.3 (3) |
C11—C2—C3—C8 | −4.8 (4) | C1—C12—C13—C14 | 158.2 (3) |
C1—C2—C3—C8 | 174.8 (3) | O1—C12—C13—C14 | −22.7 (3) |
C2—C3—C4—C5 | 177.0 (3) | C18—C13—C14—C15 | 1.1 (4) |
C8—C3—C4—C5 | −4.4 (4) | C12—C13—C14—C15 | −179.8 (3) |
C3—C4—C5—C6 | 0.6 (4) | C13—C14—C15—C16 | 0.7 (5) |
C4—C5—C6—C7 | 3.0 (4) | C14—C15—C16—C17 | −1.8 (5) |
C4—C5—C6—Br | −177.4 (2) | C15—C16—C17—C18 | 1.1 (5) |
C5—C6—C7—C8 | −2.4 (4) | C16—C17—C18—C13 | 0.7 (5) |
Br—C6—C7—C8 | 177.9 (2) | C14—C13—C18—C17 | −1.8 (4) |
C6—C7—C8—C9 | 177.7 (3) | C12—C13—C18—C17 | 179.1 (3) |
C6—C7—C8—C3 | −1.5 (4) | O2—S—C19—C20 | 13.1 (3) |
C4—C3—C8—C7 | 4.9 (4) | C1—S—C19—C20 | 127.3 (2) |
C2—C3—C8—C7 | −176.4 (2) | O2—S—C19—C24 | −171.6 (2) |
C4—C3—C8—C9 | −174.4 (3) | C1—S—C19—C24 | −57.4 (2) |
C2—C3—C8—C9 | 4.3 (4) | C24—C19—C20—C21 | 1.5 (5) |
C7—C8—C9—C10 | 179.7 (3) | S—C19—C20—C21 | 176.7 (2) |
C3—C8—C9—C10 | −1.0 (4) | C19—C20—C21—C22 | −2.2 (5) |
C8—C9—C10—C11 | −1.7 (4) | C20—C21—C22—C23 | 1.4 (6) |
C12—O1—C11—C2 | −0.3 (3) | C21—C22—C23—C24 | 0.0 (6) |
C12—O1—C11—C10 | 177.2 (3) | C22—C23—C24—C19 | −0.7 (5) |
C3—C2—C11—O1 | 179.7 (2) | C20—C19—C24—C23 | 0.0 (5) |
C1—C2—C11—O1 | 0.0 (3) | S—C19—C24—C23 | −175.3 (2) |
C3—C2—C11—C10 | 2.2 (4) | C27i—C25—C26—C27 | 1.1 (19) |
C1—C2—C11—C10 | −177.5 (3) | C25—C26—C27—C25i | −1.1 (19) |
Symmetry code: (i) −x+1, −y, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C23—H23···Cg1ii | 0.93 | 2.87 | 3.740 (4) | 156 |
C20—H20···O2iii | 0.93 | 2.52 | 3.392 (4) | 155 |
Symmetry codes: (ii) x+1, y, z; (iii) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C24H15BrO2S·0.5C6H6 |
Mr | 486.38 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 8.154 (1), 10.268 (2), 13.771 (2) |
α, β, γ (°) | 80.656 (2), 86.431 (2), 75.377 (2) |
V (Å3) | 1100.6 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.98 |
Crystal size (mm) | 0.40 × 0.10 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1999) |
Tmin, Tmax | 0.504, 0.826 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8221, 3870, 2968 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.091, 1.06 |
No. of reflections | 3870 |
No. of parameters | 280 |
No. of restraints | 3 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.41, −0.74 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), 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 |
C23—H23···Cg1i | 0.93 | 2.87 | 3.740 (4) | 156.3 |
C20—H20···O2ii | 0.93 | 2.52 | 3.392 (4) | 155.4 |
Symmetry codes: (i) x+1, y, z; (ii) −x+1, −y+2, −z+1. |
References
Brandenburg, K. (1998). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Bruker (2001). SAINT and SMART. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Choi, H. D., Seo, P. J., Son, B. W. & Lee, U. (2007). Acta Cryst. E63, o4102. Web of Science CSD CrossRef IUCr Journals Google Scholar
Choi, H. D., Seo, P. J., Son, B. W. & Lee, U. (2008). Acta Cryst. E64, o944. Web of Science CSD CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Goel, A. & Dixit, M. (2004). Tetrahedron Lett. 45, 8819–8821. Web of Science CrossRef CAS Google Scholar
Hagiwara, H., Sato, K., Suzuki, T. & Ando, M. (1999). Heterocycles, 51, 497–500. CrossRef CAS Google Scholar
Piloto, A. M., Costa, S. P. G. & Goncalves, M. S. T. (2005). Tetrahedron Lett. 46, 4757–4760. Web of Science CrossRef CAS Google Scholar
Sheldrick, G. M. (1999). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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.
Naphthofuran compounds have attracted widespread interest in view of their biological and pharmacological activities (Goel & Dixit, 2004; Hagiwara et al., 1999; Piloto et al., 2005). This work is related to our communications on the synthesis and structures of 7–bromonaphtho[2,1–b]furan analogues, viz. 7–bromo–2–methyl–1–(phenylsulfanyl)naphtho[2,1–b]furan (Choi et al., 2007) and 7–bromo–2–methyl–1–(phenylsulfonyl)naphtho[2,1–b]furan (Choi et al., 2008). We present here the crystal structure of the title compound (I) co-crystallized with benzene. The benzene solvate sits on a center of symmetry (Fig. 1) such that the structures is a hemisolvate.
The naphthofuran unit is essentially planar, with a mean deviation of 0.056 (2) Å from the least–squares plane defined by the thirteen constituent atoms. The dihedral angle in (I) formed by the plane of the naphthofuran ring and the plane of 2–phenyl ring is 25.2 (1)°, and the phenyl ring (C19–C24) with a dihedral angle of 83.78 (8)° is almost perpendicular and titlled slightly toward the naphthofuran moieity. The crystal packing (Fig. 2) is stabilized by aromatic π–π interactions between the central benzene ring and the furan ring from adjacent molecules. The Cg2···Cg3iv distance is 3.611 (3) Å (Cg2 and Cg3 are the centroides of the C1/C2/C11/O1/C12 furan ring and the C2/C3/C8/C9/C10/C11 benzene ring, respectively, symmetry code as in Fig. 2). The molecular packing is further stabilized by intermolecular C—H···π interactions between the benzene H atom of the phenylsulfinyl substituent and the 2-phenyl ring of an adjacent molecule (Table 1 and Fig. 2). Additionally, a weak non–calssical intermolecular C—H···O hydrogen bond in the structure was observed (Fig. 2 and Table 1; symmetry code as in Fig. 2).