organic compounds
4-Tosyl-1-oxa-4-azaspiro[4.5]deca-6,9-dien-8-one
aDepartment of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, People's Republic of China, bGuangzhou Yuantong Pharmaceutical Technology Co Ltd, Guangzhou 510610, People's Republic of China, and cDepartment of Pharmaceutical and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, People's Republic of China
*Correspondence e-mail: hwc@scu.edu.cn
In the molecule of the title compound, C15H15NO4S, the two six-membered rings are almost parallel to each other [dihedral angle = 1.87 (9)°] and perpendicular to the mean plane through the five-membered ring [dihedral angles of 89.98 (10) and 89.04 (10)°]. The is stabilized by intermolecular C—H⋯O hydrogen-bonding interactions.
Related literature
For general background to the catalytic oxidation of phenol derivatives using transition metal complexes, see: Bernini et al. (2006); Cheung et al. (2005). For puckering parameters, see: Cremer & Pople (1975).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: DIFRAC (Gabe & White, 1993); cell DIFRAC; data reduction: NRCVAX (Gabe et al., 1989); 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, 1997); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536809001524/rz2288sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809001524/rz2288Isup2.hkl
A solution of 2-phenoxyethyl-p-toluenesulfon amide (1 mmol) and indobenzene diacetate (1.5 mmol) in dichloromethane was charged in a reaction flask and 4 A molecular sieves was added. Then, the mixture was stirred at 303 K under a nitrogen atmosphere for 4 h. After cooling to room temperature, the resulting mixture was filtered and the solvent was removed under vacuo. The residue was purified by flash
on silica gel with petroleum ether/ethyl acetate (5:1 v/v) as the Colorless crystals suitable for X-ray analysis were obtained by slow evaporation in a cyclohexane/ether solution (5:1 v/v) at room temperature.H atoms were positioned geometrically (C—H = 0.93–0.98 Å) and refined using a riding model, with Uiso(H) = 1.2–1.5Ueq(C).
Data collection: DIFRAC (Gabe & White, 1993); cell
DIFRAC (Gabe & White, 1993); data reduction: NRCVAX (Gabe et al., 1989); 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, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C15H15NO4S | F(000) = 640 |
Mr = 305.34 | Dx = 1.424 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 11.882 (3) Å | Cell parameters from 22 reflections |
b = 14.973 (6) Å | θ = 4.5–7.7° |
c = 8.369 (5) Å | µ = 0.24 mm−1 |
β = 107.00 (3)° | T = 294 K |
V = 1423.9 (11) Å3 | Block, colourless |
Z = 4 | 0.30 × 0.25 × 0.20 mm |
Enraf–Nonius CAD-4 diffractometer | Rint = 0.008 |
Radiation source: fine-focus sealed tube | θmax = 25.5°, θmin = 1.8° |
Graphite monochromator | h = −14→3 |
ω/2–θ scans | k = −18→0 |
2996 measured reflections | l = −9→10 |
2625 independent reflections | 3 standard reflections every 300 reflections |
1526 reflections with I > 2σ(I) | intensity decay: 1.6% |
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)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0523P)2 + 0.2087P] where P = (Fo2 + 2Fc2)/3 |
2625 reflections | (Δ/σ)max < 0.001 |
192 parameters | Δρmax = 0.30 e Å−3 |
0 restraints | Δρmin = −0.27 e Å−3 |
C15H15NO4S | V = 1423.9 (11) Å3 |
Mr = 305.34 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.882 (3) Å | µ = 0.24 mm−1 |
b = 14.973 (6) Å | T = 294 K |
c = 8.369 (5) Å | 0.30 × 0.25 × 0.20 mm |
β = 107.00 (3)° |
Enraf–Nonius CAD-4 diffractometer | Rint = 0.008 |
2996 measured reflections | 3 standard reflections every 300 reflections |
2625 independent reflections | intensity decay: 1.6% |
1526 reflections with I > 2σ(I) |
R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.30 e Å−3 |
2625 reflections | Δρmin = −0.27 e Å−3 |
192 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 | 0.28106 (6) | 0.58803 (5) | 0.06825 (9) | 0.0407 (2) | |
O1 | 0.09259 (19) | 0.57997 (15) | −0.3866 (3) | 0.0638 (7) | |
O2 | −0.1639 (2) | 0.7616 (2) | −0.1273 (4) | 0.1088 (11) | |
O3 | 0.20120 (17) | 0.62375 (14) | 0.1501 (3) | 0.0500 (5) | |
O4 | 0.35194 (17) | 0.51210 (13) | 0.1369 (3) | 0.0531 (6) | |
N1 | 0.20196 (18) | 0.55681 (15) | −0.1165 (3) | 0.0408 (6) | |
C1 | 0.0935 (2) | 0.60359 (18) | −0.2213 (4) | 0.0420 (7) | |
C2 | 0.0995 (3) | 0.70272 (19) | −0.2139 (4) | 0.0448 (7) | |
H2 | 0.1650 | 0.7308 | −0.2304 | 0.054* | |
C3 | 0.0165 (3) | 0.7524 (2) | −0.1852 (4) | 0.0532 (8) | |
H3 | 0.0239 | 0.8142 | −0.1869 | 0.064* | |
C4 | −0.0868 (3) | 0.7143 (3) | −0.1509 (5) | 0.0648 (10) | |
C5 | −0.0943 (3) | 0.6167 (2) | −0.1518 (4) | 0.0612 (9) | |
H5 | −0.1587 | 0.5897 | −0.1301 | 0.073* | |
C6 | −0.0124 (3) | 0.5663 (2) | −0.1826 (4) | 0.0523 (8) | |
H6 | −0.0207 | 0.5046 | −0.1802 | 0.063* | |
C7 | 0.1620 (3) | 0.5036 (2) | −0.3849 (4) | 0.0662 (10) | |
H7A | 0.1950 | 0.5048 | −0.4780 | 0.079* | |
H7B | 0.1151 | 0.4498 | −0.3926 | 0.079* | |
C8 | 0.2563 (3) | 0.5062 (2) | −0.2247 (4) | 0.0613 (9) | |
H8A | 0.2779 | 0.4465 | −0.1815 | 0.074* | |
H8B | 0.3257 | 0.5364 | −0.2365 | 0.074* | |
C9 | 0.3779 (2) | 0.67304 (18) | 0.0454 (3) | 0.0383 (7) | |
C10 | 0.3497 (3) | 0.7621 (2) | 0.0559 (4) | 0.0493 (8) | |
H10 | 0.2795 | 0.7780 | 0.0765 | 0.059* | |
C11 | 0.4264 (3) | 0.8267 (2) | 0.0357 (4) | 0.0536 (9) | |
H11 | 0.4072 | 0.8865 | 0.0431 | 0.064* | |
C12 | 0.5312 (3) | 0.8055 (2) | 0.0047 (4) | 0.0472 (8) | |
C13 | 0.5568 (3) | 0.7168 (2) | −0.0071 (4) | 0.0535 (8) | |
H13 | 0.6266 | 0.7012 | −0.0288 | 0.064* | |
C14 | 0.4821 (2) | 0.6503 (2) | 0.0123 (4) | 0.0487 (8) | |
H14 | 0.5012 | 0.5907 | 0.0034 | 0.058* | |
C15 | 0.6133 (3) | 0.8785 (2) | −0.0157 (4) | 0.0669 (10) | |
H15A | 0.5717 | 0.9187 | −0.1021 | 0.100* | |
H15B | 0.6783 | 0.8526 | −0.0456 | 0.100* | |
H15C | 0.6421 | 0.9105 | 0.0875 | 0.100* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0436 (4) | 0.0356 (4) | 0.0419 (4) | −0.0024 (4) | 0.0108 (3) | 0.0011 (4) |
O1 | 0.0715 (15) | 0.0670 (15) | 0.0453 (13) | 0.0231 (13) | 0.0053 (11) | −0.0080 (12) |
O2 | 0.0677 (17) | 0.102 (2) | 0.170 (3) | 0.0206 (17) | 0.0560 (19) | −0.020 (2) |
O3 | 0.0541 (12) | 0.0512 (12) | 0.0523 (13) | −0.0066 (10) | 0.0274 (11) | −0.0068 (10) |
O4 | 0.0538 (13) | 0.0428 (12) | 0.0567 (13) | 0.0034 (10) | 0.0068 (10) | 0.0121 (10) |
N1 | 0.0385 (13) | 0.0350 (13) | 0.0467 (14) | 0.0030 (10) | 0.0090 (11) | −0.0056 (11) |
C1 | 0.0415 (16) | 0.0367 (17) | 0.0463 (17) | 0.0037 (13) | 0.0106 (13) | −0.0020 (13) |
C2 | 0.0433 (17) | 0.0389 (17) | 0.055 (2) | −0.0021 (14) | 0.0191 (15) | 0.0070 (15) |
C3 | 0.0524 (19) | 0.0370 (17) | 0.069 (2) | 0.0035 (15) | 0.0153 (17) | −0.0028 (16) |
C4 | 0.046 (2) | 0.073 (3) | 0.077 (3) | 0.0122 (19) | 0.0189 (18) | −0.006 (2) |
C5 | 0.0384 (18) | 0.068 (2) | 0.076 (2) | −0.0077 (17) | 0.0154 (17) | 0.014 (2) |
C6 | 0.0427 (17) | 0.0369 (17) | 0.070 (2) | −0.0053 (15) | 0.0056 (16) | 0.0093 (16) |
C7 | 0.056 (2) | 0.074 (3) | 0.062 (2) | 0.0135 (19) | 0.0072 (18) | −0.0205 (19) |
C8 | 0.0557 (19) | 0.063 (2) | 0.062 (2) | 0.0097 (18) | 0.0110 (17) | −0.0179 (18) |
C9 | 0.0354 (16) | 0.0394 (16) | 0.0388 (16) | −0.0060 (13) | 0.0088 (13) | 0.0004 (13) |
C10 | 0.0471 (18) | 0.0431 (18) | 0.065 (2) | −0.0050 (14) | 0.0273 (16) | −0.0088 (16) |
C11 | 0.064 (2) | 0.0366 (17) | 0.067 (2) | −0.0055 (16) | 0.0306 (18) | −0.0081 (16) |
C12 | 0.0453 (18) | 0.050 (2) | 0.0463 (19) | −0.0113 (15) | 0.0135 (15) | −0.0031 (15) |
C13 | 0.0389 (17) | 0.060 (2) | 0.064 (2) | −0.0015 (16) | 0.0178 (16) | −0.0038 (18) |
C14 | 0.0379 (16) | 0.0429 (18) | 0.063 (2) | 0.0027 (14) | 0.0107 (15) | −0.0012 (15) |
C15 | 0.062 (2) | 0.070 (2) | 0.073 (2) | −0.0234 (19) | 0.0262 (19) | −0.007 (2) |
S1—O3 | 1.427 (2) | C7—C8 | 1.478 (4) |
S1—O4 | 1.431 (2) | C7—H7A | 0.9700 |
S1—N1 | 1.626 (2) | C7—H7B | 0.9700 |
S1—C9 | 1.763 (3) | C8—H8A | 0.9700 |
O1—C7 | 1.409 (4) | C8—H8B | 0.9700 |
O1—C1 | 1.424 (4) | C9—C10 | 1.384 (4) |
O2—C4 | 1.218 (4) | C9—C14 | 1.388 (4) |
N1—C8 | 1.469 (4) | C10—C11 | 1.372 (4) |
N1—C1 | 1.503 (3) | C10—H10 | 0.9300 |
C1—C2 | 1.487 (4) | C11—C12 | 1.381 (4) |
C1—C6 | 1.496 (4) | C11—H11 | 0.9300 |
C2—C3 | 1.313 (4) | C12—C13 | 1.373 (4) |
C2—H2 | 0.9300 | C12—C15 | 1.508 (4) |
C3—C4 | 1.455 (4) | C13—C14 | 1.374 (4) |
C3—H3 | 0.9300 | C13—H13 | 0.9300 |
C4—C5 | 1.463 (5) | C14—H14 | 0.9300 |
C5—C6 | 1.314 (4) | C15—H15A | 0.9600 |
C5—H5 | 0.9300 | C15—H15B | 0.9600 |
C6—H6 | 0.9300 | C15—H15C | 0.9600 |
O3—S1—O4 | 120.05 (13) | O1—C7—H7B | 110.5 |
O3—S1—N1 | 106.48 (12) | C8—C7—H7B | 110.5 |
O4—S1—N1 | 105.19 (12) | H7A—C7—H7B | 108.7 |
O3—S1—C9 | 109.16 (13) | N1—C8—C7 | 102.7 (2) |
O4—S1—C9 | 106.92 (13) | N1—C8—H8A | 111.2 |
N1—S1—C9 | 108.57 (13) | C7—C8—H8A | 111.2 |
C7—O1—C1 | 110.7 (2) | N1—C8—H8B | 111.2 |
C8—N1—C1 | 109.7 (2) | C7—C8—H8B | 111.2 |
C8—N1—S1 | 119.94 (18) | H8A—C8—H8B | 109.1 |
C1—N1—S1 | 125.44 (18) | C10—C9—C14 | 119.7 (3) |
O1—C1—C2 | 106.0 (2) | C10—C9—S1 | 120.7 (2) |
O1—C1—C6 | 110.4 (2) | C14—C9—S1 | 119.5 (2) |
C2—C1—C6 | 113.4 (2) | C11—C10—C9 | 119.3 (3) |
O1—C1—N1 | 102.3 (2) | C11—C10—H10 | 120.4 |
C2—C1—N1 | 114.7 (2) | C9—C10—H10 | 120.4 |
C6—C1—N1 | 109.3 (2) | C10—C11—C12 | 121.9 (3) |
C3—C2—C1 | 123.0 (3) | C10—C11—H11 | 119.0 |
C3—C2—H2 | 118.5 | C12—C11—H11 | 119.0 |
C1—C2—H2 | 118.5 | C13—C12—C11 | 117.8 (3) |
C2—C3—C4 | 122.4 (3) | C13—C12—C15 | 121.9 (3) |
C2—C3—H3 | 118.8 | C11—C12—C15 | 120.2 (3) |
C4—C3—H3 | 118.8 | C12—C13—C14 | 121.9 (3) |
O2—C4—C3 | 121.4 (4) | C12—C13—H13 | 119.1 |
O2—C4—C5 | 122.2 (3) | C14—C13—H13 | 119.1 |
C3—C4—C5 | 116.3 (3) | C13—C14—C9 | 119.4 (3) |
C6—C5—C4 | 121.8 (3) | C13—C14—H14 | 120.3 |
C6—C5—H5 | 119.1 | C9—C14—H14 | 120.3 |
C4—C5—H5 | 119.1 | C12—C15—H15A | 109.5 |
C5—C6—C1 | 123.0 (3) | C12—C15—H15B | 109.5 |
C5—C6—H6 | 118.5 | H15A—C15—H15B | 109.5 |
C1—C6—H6 | 118.5 | C12—C15—H15C | 109.5 |
O1—C7—C8 | 105.9 (3) | H15A—C15—H15C | 109.5 |
O1—C7—H7A | 110.5 | H15B—C15—H15C | 109.5 |
C8—C7—H7A | 110.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O4i | 0.93 | 2.48 | 3.211 (4) | 134 |
C15—H15B···O2ii | 0.96 | 2.57 | 3.520 (5) | 171 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x, y, z+1. |
Experimental details
Crystal data | |
Chemical formula | C15H15NO4S |
Mr | 305.34 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 294 |
a, b, c (Å) | 11.882 (3), 14.973 (6), 8.369 (5) |
β (°) | 107.00 (3) |
V (Å3) | 1423.9 (11) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.24 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2996, 2625, 1526 |
Rint | 0.008 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.119, 1.02 |
No. of reflections | 2625 |
No. of parameters | 192 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.30, −0.27 |
Computer programs: DIFRAC (Gabe & White, 1993), NRCVAX (Gabe et al., 1989), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997).
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O4i | 0.93 | 2.48 | 3.211 (4) | 134 |
C15—H15B···O2ii | 0.96 | 2.57 | 3.520 (5) | 171 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x, y, z+1. |
Acknowledgements
This work was financially supported by the Industry–Academia–Research Combination Project of the Ministry of Education of China and Guangdong Province (No.2007B090400016)
References
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In the course of our studies aimed to prepare a substituted quinone from the corresponding aromatic ether by catalytic oxidation using transition metal complexes (Cheung et al., 2005; Bernini et al.,2006), the title compound was unexpectedly obtained in about 70% yield. In the molecule of the title compound (Fig. 1) the C1–C6 and C9–C14 six-membered rings are almost parallel to each other(dihedral angle 1.87 (9)°) and perpendicular to the mean plane through the O1/N1/C1/C7/C8 ring, forming dihedral angles of 89.98 (10) and 89.04 (10)°, respectively. The five-membered ring adopts an envelope conformation, with puckering parameters Q2 = 0.269 (3) Å and ϕ2 =104.4 (6)° ((Cremer & Pople, 1975). The crystal structure (Fig. 2) is enforced by intermolecular C—H···O hydrogen bonds (Table 1).