organic compounds
3′-(4-Methoxyphenyl)-4′-phenyl-3H,4′H-spiro[1-benzothiophene-2,5′-isoxazol]-3-one
aDépartement de Chimie, Faculté des Sciences, Dhar Mehraz, BP 1796 Atlas, 30000 Fés, Morocco, bLaboratoires de Diffraction des Rayons X, Centre Nationale pour la Recherche Scientifique et Technique, Rabat, Morocco, and cCentre Nationale pour la Recherche, Scientifique et Technique, Rabat, Morocco
*Correspondence e-mail: elyazidimohamed@hotmail.com
In the title compound, C23H17NO3S, the thiophene and isoxazole rings each have an with the spiro C atom linking them forming the flap of the envelope in each case. The dihedral angle between the mean planes of the benzothiophene ring and isoxazole rings is 81.35 (7)°. In the crystal, an intermolecular C—H⋯O hydrogen bond links the molecules into a chain running parallel to the a axis.
Related literature
For general background to dipolar-1,3 cycloaddition reactions, see: Al Houari et al. (2010); Toth et al. (1999); El yazidi et al. (1994). For graph-set analysis, see: Bernstein et al. (1995).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536811024408/lw2066sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811024408/lw2066Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811024408/lw2066Isup3.cml
In a 100 ml flask, 2 mmoles of the (Z)-2-arylidenebenzo[b]thiophen-3(2H)-one and 2.2 mmoles of p-anisyloxime were dissolved in 20 ml of chloroform. The mixture was cooled to 0°C under magnetic stirring in an ice bath. Then 15 ml of bleach (NaOCl) at 24°Chl(chlorometric degree) was added in small amounts without exceeding the temperature of 5°C. The mixture was left under magnetic stirring for 4 h at room temperature, washed with water until pH was neutral and dried on sodium sulfate. The solvent was evaporated using a rotary evaporator and the oily residue dissolved in ethanol. The resulting precipitate was then re-crystallized in ethanol.
The H atoms bound to C were treated as riding with their parent atoms [C—H distances are 0.93Å for CH groups with Uiso(H) = 1.2 Ueq(C), and 0.97 Å for CH3 groups with Uiso(H) = 1.5 Ueq(C).
Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: publCIF (Westrip, 2010).C23H17NO3S | Z = 2 |
Mr = 387.44 | F(000) = 404 |
Triclinic, P1 | Dx = 1.348 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.3644 (13) Å | Cell parameters from 312 reflections |
b = 9.8132 (14) Å | θ = 2.6–26.4° |
c = 11.1502 (15) Å | µ = 0.19 mm−1 |
α = 103.575 (8)° | T = 296 K |
β = 90.360 (8)° | Prism, colourless |
γ = 106.089 (8)° | 0.24 × 0.22 × 0.16 mm |
V = 954.2 (2) Å3 |
Bruker APEXII CCD detector diffractometer | 3389 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.021 |
Graphite monochromator | θmax = 27.5°, θmin = 2.5° |
ω and ϕ scans | h = −12→12 |
14395 measured reflections | k = −12→12 |
4336 independent reflections | l = −14→14 |
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)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.117 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.055P)2 + 0.2963P] where P = (Fo2 + 2Fc2)/3 |
4336 reflections | (Δ/σ)max < 0.001 |
254 parameters | Δρmax = 0.30 e Å−3 |
0 restraints | Δρmin = −0.25 e Å−3 |
C23H17NO3S | γ = 106.089 (8)° |
Mr = 387.44 | V = 954.2 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.3644 (13) Å | Mo Kα radiation |
b = 9.8132 (14) Å | µ = 0.19 mm−1 |
c = 11.1502 (15) Å | T = 296 K |
α = 103.575 (8)° | 0.24 × 0.22 × 0.16 mm |
β = 90.360 (8)° |
Bruker APEXII CCD detector diffractometer | 3389 reflections with I > 2σ(I) |
14395 measured reflections | Rint = 0.021 |
4336 independent reflections |
R[F2 > 2σ(F2)] = 0.040 | 0 restraints |
wR(F2) = 0.117 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.30 e Å−3 |
4336 reflections | Δρmin = −0.25 e Å−3 |
254 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 | 0.38947 (5) | 0.17699 (5) | 0.10614 (4) | 0.04579 (15) | |
C9 | 0.48093 (15) | 0.45610 (16) | 0.28184 (14) | 0.0289 (3) | |
H9 | 0.4698 | 0.4578 | 0.3695 | 0.035* | |
C11 | 0.63503 (15) | 0.44522 (16) | 0.25013 (14) | 0.0291 (3) | |
C8 | 0.35039 (16) | 0.33637 (17) | 0.20326 (14) | 0.0311 (3) | |
C17 | 0.53370 (17) | 0.74164 (17) | 0.31717 (15) | 0.0329 (3) | |
C7 | 0.21820 (16) | 0.27837 (17) | 0.27795 (14) | 0.0318 (3) | |
C10 | 0.45054 (16) | 0.59076 (17) | 0.25599 (14) | 0.0309 (3) | |
C12 | 0.72587 (18) | 0.41734 (17) | 0.33436 (15) | 0.0359 (3) | |
H12 | 0.6920 | 0.4043 | 0.4103 | 0.043* | |
C16 | 0.68582 (18) | 0.46342 (19) | 0.13698 (16) | 0.0389 (4) | |
H16 | 0.6253 | 0.4825 | 0.0803 | 0.047* | |
C1 | 0.21339 (18) | 0.06249 (18) | 0.12568 (16) | 0.0387 (4) | |
C6 | 0.13572 (17) | 0.12766 (18) | 0.21660 (15) | 0.0356 (3) | |
C18 | 0.63321 (19) | 0.77176 (18) | 0.41909 (16) | 0.0395 (4) | |
H18 | 0.6484 | 0.6947 | 0.4475 | 0.047* | |
C14 | 0.91775 (19) | 0.4278 (2) | 0.19263 (18) | 0.0458 (4) | |
H14 | 1.0132 | 0.4233 | 0.1738 | 0.055* | |
C19 | 0.7104 (2) | 0.91401 (19) | 0.47948 (17) | 0.0443 (4) | |
H19 | 0.7767 | 0.9320 | 0.5477 | 0.053* | |
C22 | 0.5151 (2) | 0.8598 (2) | 0.27498 (17) | 0.0437 (4) | |
H22 | 0.4502 | 0.8424 | 0.2060 | 0.052* | |
C21 | 0.5915 (2) | 1.0009 (2) | 0.33447 (19) | 0.0498 (5) | |
H21 | 0.5781 | 1.0782 | 0.3053 | 0.060* | |
C13 | 0.86727 (19) | 0.4089 (2) | 0.30515 (18) | 0.0457 (4) | |
H13 | 0.9284 | 0.3905 | 0.3617 | 0.055* | |
C20 | 0.6883 (2) | 1.02933 (18) | 0.43755 (17) | 0.0424 (4) | |
C15 | 0.82683 (19) | 0.4533 (2) | 0.10813 (18) | 0.0442 (4) | |
H15 | 0.8601 | 0.4637 | 0.0315 | 0.053* | |
C5 | −0.0038 (2) | 0.0500 (2) | 0.24311 (18) | 0.0490 (4) | |
H5 | −0.0552 | 0.0939 | 0.3045 | 0.059* | |
C2 | 0.1529 (2) | −0.0820 (2) | 0.0605 (2) | 0.0548 (5) | |
H2 | 0.2046 | −0.1271 | 0.0003 | 0.066* | |
C3 | 0.0136 (3) | −0.1569 (2) | 0.0876 (2) | 0.0628 (6) | |
H3 | −0.0285 | −0.2536 | 0.0442 | 0.075* | |
C4 | −0.0650 (2) | −0.0928 (2) | 0.1771 (2) | 0.0617 (6) | |
H4 | −0.1589 | −0.1457 | 0.1928 | 0.074* | |
C23 | 0.8590 (3) | 1.2094 (3) | 0.5952 (2) | 0.0779 (7) | |
H23A | 0.8091 | 1.1682 | 0.6589 | 0.117* | |
H23B | 0.8948 | 1.3139 | 0.6248 | 0.117* | |
H23C | 0.9416 | 1.1708 | 0.5735 | 0.117* | |
O1 | 0.19215 (13) | 0.35372 (14) | 0.37248 (11) | 0.0448 (3) | |
O2 | 0.75789 (18) | 1.17292 (14) | 0.48941 (14) | 0.0628 (4) | |
O3 | 0.28865 (12) | 0.40970 (13) | 0.12447 (10) | 0.0405 (3) | |
N1 | 0.34693 (15) | 0.56346 (15) | 0.17074 (13) | 0.0389 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0348 (2) | 0.0447 (3) | 0.0485 (3) | 0.00839 (18) | 0.00969 (18) | −0.00299 (19) |
C9 | 0.0243 (7) | 0.0343 (7) | 0.0270 (7) | 0.0066 (6) | 0.0000 (5) | 0.0077 (6) |
C11 | 0.0248 (7) | 0.0287 (7) | 0.0324 (8) | 0.0065 (6) | −0.0008 (6) | 0.0062 (6) |
C8 | 0.0265 (7) | 0.0363 (8) | 0.0300 (7) | 0.0095 (6) | 0.0015 (6) | 0.0068 (6) |
C17 | 0.0298 (7) | 0.0372 (8) | 0.0339 (8) | 0.0119 (6) | 0.0038 (6) | 0.0102 (6) |
C7 | 0.0239 (7) | 0.0397 (8) | 0.0324 (8) | 0.0087 (6) | −0.0005 (6) | 0.0104 (6) |
C10 | 0.0251 (7) | 0.0380 (8) | 0.0315 (8) | 0.0110 (6) | 0.0031 (6) | 0.0101 (6) |
C12 | 0.0358 (8) | 0.0379 (8) | 0.0358 (8) | 0.0132 (7) | −0.0012 (6) | 0.0096 (7) |
C16 | 0.0319 (8) | 0.0512 (10) | 0.0393 (9) | 0.0150 (7) | 0.0033 (7) | 0.0185 (8) |
C1 | 0.0359 (8) | 0.0380 (8) | 0.0394 (9) | 0.0075 (7) | −0.0017 (7) | 0.0077 (7) |
C6 | 0.0319 (8) | 0.0387 (8) | 0.0350 (8) | 0.0065 (6) | 0.0001 (6) | 0.0109 (7) |
C18 | 0.0442 (9) | 0.0353 (8) | 0.0398 (9) | 0.0119 (7) | −0.0041 (7) | 0.0107 (7) |
C14 | 0.0287 (8) | 0.0481 (10) | 0.0607 (12) | 0.0151 (7) | 0.0047 (8) | 0.0087 (9) |
C19 | 0.0482 (10) | 0.0418 (9) | 0.0392 (9) | 0.0088 (8) | −0.0066 (8) | 0.0077 (7) |
C22 | 0.0437 (9) | 0.0457 (10) | 0.0456 (10) | 0.0155 (8) | −0.0049 (8) | 0.0155 (8) |
C21 | 0.0590 (11) | 0.0386 (9) | 0.0568 (12) | 0.0165 (8) | −0.0005 (9) | 0.0187 (8) |
C13 | 0.0376 (9) | 0.0507 (10) | 0.0528 (11) | 0.0209 (8) | −0.0076 (8) | 0.0109 (8) |
C20 | 0.0453 (9) | 0.0343 (8) | 0.0446 (10) | 0.0085 (7) | 0.0072 (8) | 0.0074 (7) |
C15 | 0.0358 (9) | 0.0522 (10) | 0.0475 (10) | 0.0138 (8) | 0.0133 (7) | 0.0164 (8) |
C5 | 0.0388 (9) | 0.0551 (11) | 0.0472 (10) | 0.0018 (8) | 0.0070 (8) | 0.0147 (9) |
C2 | 0.0566 (12) | 0.0413 (10) | 0.0575 (12) | 0.0094 (9) | 0.0010 (9) | 0.0005 (9) |
C3 | 0.0654 (13) | 0.0394 (10) | 0.0675 (14) | −0.0046 (9) | −0.0059 (11) | 0.0061 (9) |
C4 | 0.0480 (11) | 0.0546 (12) | 0.0682 (14) | −0.0106 (9) | 0.0027 (10) | 0.0180 (11) |
C23 | 0.0882 (18) | 0.0500 (12) | 0.0695 (16) | −0.0054 (12) | −0.0139 (13) | −0.0046 (11) |
O1 | 0.0353 (6) | 0.0540 (7) | 0.0383 (6) | 0.0110 (5) | 0.0076 (5) | 0.0005 (6) |
O2 | 0.0791 (10) | 0.0359 (7) | 0.0628 (9) | 0.0036 (7) | −0.0049 (8) | 0.0074 (6) |
O3 | 0.0368 (6) | 0.0441 (6) | 0.0361 (6) | 0.0029 (5) | −0.0108 (5) | 0.0124 (5) |
N1 | 0.0353 (7) | 0.0421 (8) | 0.0398 (8) | 0.0098 (6) | −0.0037 (6) | 0.0128 (6) |
S1—C1 | 1.7667 (18) | C15—C16 | 1.386 (3) |
S1—C8 | 1.8111 (17) | C17—C18 | 1.387 (2) |
O1—C7 | 1.206 (2) | C17—C22 | 1.401 (3) |
O2—C20 | 1.360 (2) | C18—C19 | 1.385 (3) |
O2—C23 | 1.420 (3) | C19—C20 | 1.385 (3) |
O3—N1 | 1.4196 (19) | C20—C21 | 1.385 (3) |
O3—C8 | 1.465 (2) | C21—C22 | 1.372 (3) |
N1—C10 | 1.281 (2) | C2—H2 | 0.9300 |
C1—C2 | 1.388 (3) | C3—H3 | 0.9300 |
C1—C6 | 1.389 (2) | C4—H4 | 0.9300 |
C2—C3 | 1.382 (3) | C5—H5 | 0.9300 |
C3—C4 | 1.380 (3) | C9—H9 | 0.9800 |
C4—C5 | 1.378 (3) | C12—H12 | 0.9300 |
C5—C6 | 1.391 (3) | C13—H13 | 0.9300 |
C6—C7 | 1.462 (2) | C14—H14 | 0.9300 |
C7—C8 | 1.548 (2) | C15—H15 | 0.9300 |
C8—C9 | 1.533 (2) | C16—H16 | 0.9300 |
C9—C10 | 1.515 (2) | C18—H18 | 0.9300 |
C9—C11 | 1.514 (2) | C19—H19 | 0.9300 |
C10—C17 | 1.464 (2) | C21—H21 | 0.9300 |
C11—C12 | 1.386 (2) | C22—H22 | 0.9300 |
C11—C16 | 1.384 (2) | C23—H23A | 0.9600 |
C12—C13 | 1.386 (3) | C23—H23B | 0.9600 |
C13—C14 | 1.378 (3) | C23—H23C | 0.9600 |
C14—C15 | 1.376 (3) | ||
C1—S1—C8 | 91.79 (8) | C18—C19—C20 | 119.55 (17) |
C20—O2—C23 | 118.54 (17) | O2—C20—C19 | 124.60 (17) |
N1—O3—C8 | 109.06 (11) | O2—C20—C21 | 115.76 (16) |
O3—N1—C10 | 109.34 (13) | C19—C20—C21 | 119.62 (17) |
S1—C1—C2 | 125.36 (14) | C20—C21—C22 | 120.64 (18) |
S1—C1—C6 | 114.40 (13) | C17—C22—C21 | 120.68 (17) |
C2—C1—C6 | 120.23 (17) | C1—C2—H2 | 121.00 |
C1—C2—C3 | 118.11 (19) | C3—C2—H2 | 121.00 |
C2—C3—C4 | 122.11 (19) | C2—C3—H3 | 119.00 |
C3—C4—C5 | 119.72 (19) | C4—C3—H3 | 119.00 |
C4—C5—C6 | 119.07 (18) | C3—C4—H4 | 120.00 |
C1—C6—C5 | 120.74 (16) | C5—C4—H4 | 120.00 |
C1—C6—C7 | 112.67 (15) | C4—C5—H5 | 120.00 |
C5—C6—C7 | 126.58 (16) | C6—C5—H5 | 120.00 |
O1—C7—C6 | 127.74 (15) | C8—C9—H9 | 109.00 |
O1—C7—C8 | 121.67 (15) | C10—C9—H9 | 109.00 |
C6—C7—C8 | 110.59 (13) | C11—C9—H9 | 109.00 |
S1—C8—O3 | 108.71 (10) | C11—C12—H12 | 120.00 |
S1—C8—C7 | 106.43 (11) | C13—C12—H12 | 120.00 |
S1—C8—C9 | 117.97 (11) | C12—C13—H13 | 120.00 |
O3—C8—C7 | 103.57 (12) | C14—C13—H13 | 120.00 |
O3—C8—C9 | 105.03 (12) | C13—C14—H14 | 120.00 |
C7—C8—C9 | 114.10 (12) | C15—C14—H14 | 120.00 |
C8—C9—C10 | 100.13 (12) | C14—C15—H15 | 120.00 |
C8—C9—C11 | 115.78 (13) | C16—C15—H15 | 120.00 |
C10—C9—C11 | 112.61 (13) | C11—C16—H16 | 120.00 |
N1—C10—C9 | 114.45 (14) | C15—C16—H16 | 120.00 |
N1—C10—C17 | 120.87 (15) | C17—C18—H18 | 119.00 |
C9—C10—C17 | 124.63 (14) | C19—C18—H18 | 119.00 |
C9—C11—C12 | 120.14 (14) | C18—C19—H19 | 120.00 |
C9—C11—C16 | 120.12 (14) | C20—C19—H19 | 120.00 |
C12—C11—C16 | 119.75 (15) | C20—C21—H21 | 120.00 |
C11—C12—C13 | 119.81 (16) | C22—C21—H21 | 120.00 |
C12—C13—C14 | 120.29 (17) | C17—C22—H22 | 120.00 |
C13—C14—C15 | 119.98 (17) | C21—C22—H22 | 120.00 |
C14—C15—C16 | 120.16 (18) | O2—C23—H23A | 109.00 |
C11—C16—C15 | 120.01 (16) | O2—C23—H23B | 110.00 |
C10—C17—C18 | 120.82 (15) | O2—C23—H23C | 109.00 |
C10—C17—C22 | 121.19 (15) | H23A—C23—H23B | 109.00 |
C18—C17—C22 | 117.99 (16) | H23A—C23—H23C | 109.00 |
C17—C18—C19 | 121.50 (16) | H23B—C23—H23C | 109.00 |
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13···O1i | 0.93 | 2.60 | 3.345 (2) | 138 |
Symmetry code: (i) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C23H17NO3S |
Mr | 387.44 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 9.3644 (13), 9.8132 (14), 11.1502 (15) |
α, β, γ (°) | 103.575 (8), 90.360 (8), 106.089 (8) |
V (Å3) | 954.2 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.19 |
Crystal size (mm) | 0.24 × 0.22 × 0.16 |
Data collection | |
Diffractometer | Bruker APEXII CCD detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14395, 4336, 3389 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.117, 1.08 |
No. of reflections | 4336 |
No. of parameters | 254 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.30, −0.25 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13···O1i | 0.93 | 2.60 | 3.345 (2) | 138 |
Symmetry code: (i) x+1, y, z. |
Acknowledgements
The authors thank the Unit of Support for Technical and Scientific Research (UATRS and CNRST) for the X-ray measurements.
References
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1,3-dipolar cyclo-addition of arylnitriloxides with ethylenic dipolarophiles produce isoxazolines in which the electron attracting or withdrawing substitutuent of the dipolarophile is at position 5 (IUPAC numbering) of the isoxazoline [Al Houari, et al. 2010; Toth et al. 1999 and El yazidi et al. 1994].
C23H17NO3S, Figure 1, is the product of the reaction of the p-anisylnitriloxide with (Z)-2-benzylidenebenzo[b]thiophen-3(2H)- one. The X-ray crystal structure study shows that the hydrogen atom attached to C9 is cis to the carbonyl group attached to C7.
The thiophene and isoxazole rings have envelope conformations, the spiro carbon atom linking them forming the flap of the envelope in each case.
The dihedral angles between the of mean planes of the benzothiophene ring, BTh ,(atoms S1 sequentially to C8), the the isoxazole ring, Iso, (atoms N1-O3-C8-C9-C10), the phenyl ring, MPh, (atoms C17 to C22) and the the phenyl ring, Ph, (atoms C11 to C16) are: Bth/Iso = 81.35 (7)°, BTh/MPh = 88.46 (7)°, BTh/Ph = 84.21 (7)°, Iso/MPh = 7.57 (9)°, Iso/Ph = 84.58 (9) and MPh/Ph = 86.41 (9)°.
The C—H···O hydrogen bonds [C13—H13··· O1 (1+x, y, z) (Table 1)] generates C8 chains, (Bernstein et al., 1995), which run parallel to the aaxis (Figure. 2).