Acta Cryst. (2010). E66, o208 [ doi:10.1107/S1600536809053951 ]
In the title compound, C17H16Cl2O4, the cyclohexyl ring displays a chair conformation [the four C atoms are planar with a mean deviation of 0.001 (2) Å and the two C atoms at the flap positions deviate by 0.625 (2) and -0.680 (2) Å from the plane]. The furan ring is planar with a mean deviation of 0.004 (2) Å and forms a dihedral angle of 46.73 (2)° with the benzene ring.
4-hydroxyl-3-(2,4-dichlorophenyl)-1-oxaspiro[4,5]dec- 3-en-2-one(10 mmol 3.12 g) was added to acetic anhydride (35 ml) and the mixture was stirred at reflux for 5 h. Then water (70 ml) was added and the solution was extracted with dichloromethane. The organic layer was dried over Na2SO4. After filtered and concentrated, the organic residue was purified by silica gel column chromatography, eluted with ethyl acetate-petroleum(1:30,v/v) to give a white solid, which was then recrystallized from 95% ethanol to give colourless blocks.
H atoms were included in calculated positions and refined using a rinding model, with C—H distances constrained to 0.96 Å for methyl H atoms, 0.93Å for aryl H atoms and 0.97 for the cyclopentane,with O—H distances constrained to 0.820 Å, and with Uiso(H) = 1.2Ueq(C,O).
Data collection: PROCESS-AUTO (Rigaku, 2006); cell refinement: PROCESS-AUTO (Rigaku, 2006); data reduction: CrystalStructure (Rigaku, 2007); 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: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
| Fig. 1. The molecular structure of (I), showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level. |
| C17H16Cl2O4 | F(000) = 736 |
| Mr = 355.20 | Dx = 1.399 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 11608 reflections |
| a = 14.0705 (5) Å | θ = 3.1–27.4° |
| b = 12.9731 (4) Å | µ = 0.40 mm−1 |
| c = 9.2400 (3) Å | T = 296 K |
| β = 90.892 (1)° | Chunk, colorless |
| V = 1686.45 (10) Å3 | 0.47 × 0.45 × 0.29 mm |
| Z = 4 |
| Rigaku R-AXIS RAPID diffractometer | 3835 independent reflections |
| Radiation source: rotating anode | 2866 reflections with I > 2σ(I) |
| graphite | Rint = 0.025 |
| Detector resolution: 10.00 pixels mm-1 | θmax = 27.4°, θmin = 3.1° |
| ω scans | h = −17→18 |
| Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −16→16 |
| Tmin = 0.834, Tmax = 0.893 | l = −11→11 |
| 16146 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)] = 0.035 | H-atom parameters constrained |
| wR(F2) = 0.098 | w = 1/[σ2(Fo2) + (0.040P)2 + 0.650P] where P = (Fo2 + 2Fc2)/3 |
| S = 1.00 | (Δ/σ)max = 0.001 |
| 3835 reflections | Δρmax = 0.22 e Å−3 |
| 210 parameters | Δρmin = −0.23 e Å−3 |
| 0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0064 (10) |
| C17H16Cl2O4 | V = 1686.45 (10) Å3 |
| Mr = 355.20 | Z = 4 |
| Monoclinic, P21/c | Mo Kα radiation |
| a = 14.0705 (5) Å | µ = 0.40 mm−1 |
| b = 12.9731 (4) Å | T = 296 K |
| c = 9.2400 (3) Å | 0.47 × 0.45 × 0.29 mm |
| β = 90.892 (1)° |
| Rigaku R-AXIS RAPID diffractometer | 3835 independent reflections |
| Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 2866 reflections with I > 2σ(I) |
| Tmin = 0.834, Tmax = 0.893 | Rint = 0.025 |
| 16146 measured reflections | θmax = 27.4° |
| R[F2 > 2σ(F2)] = 0.035 | H-atom parameters constrained |
| wR(F2) = 0.098 | Δρmax = 0.22 e Å−3 |
| S = 1.00 | Δρmin = −0.23 e Å−3 |
| 3835 reflections | Absolute structure: ? |
| 210 parameters | Flack parameter: ? |
| 0 restraints | Rogers parameter: ? |
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 | ||
| Cl2 | 0.54892 (4) | 0.47091 (4) | 0.18788 (5) | 0.06065 (17) | |
| Cl1 | 0.38311 (4) | 0.75742 (4) | 0.51693 (6) | 0.06588 (18) | |
| O2 | 0.84926 (8) | 0.39184 (10) | 0.46610 (12) | 0.0476 (3) | |
| O1 | 0.75521 (9) | 0.45025 (11) | 0.64035 (13) | 0.0536 (3) | |
| C4 | 0.64126 (12) | 0.56385 (12) | 0.41374 (17) | 0.0392 (3) | |
| O3 | 0.76541 (10) | 0.49671 (10) | 0.13019 (13) | 0.0549 (3) | |
| C16 | 0.74521 (13) | 0.59698 (16) | 0.08843 (19) | 0.0490 (4) | |
| C7 | 0.72584 (12) | 0.49944 (13) | 0.39001 (17) | 0.0401 (4) | |
| C6 | 0.56414 (13) | 0.69385 (14) | 0.5600 (2) | 0.0500 (4) | |
| H6 | 0.5665 | 0.7404 | 0.6365 | 0.060* | |
| C15 | 0.77593 (13) | 0.47332 (13) | 0.27392 (18) | 0.0437 (4) | |
| C3 | 0.55724 (12) | 0.55682 (13) | 0.33197 (17) | 0.0417 (4) | |
| C1 | 0.48284 (12) | 0.68374 (13) | 0.4763 (2) | 0.0462 (4) | |
| C9 | 0.85752 (12) | 0.40299 (14) | 0.30992 (18) | 0.0445 (4) | |
| C2 | 0.47789 (12) | 0.61566 (14) | 0.36203 (18) | 0.0460 (4) | |
| H2 | 0.4225 | 0.6094 | 0.3064 | 0.055* | |
| O4 | 0.74584 (11) | 0.66581 (11) | 0.17247 (15) | 0.0626 (4) | |
| C5 | 0.64214 (13) | 0.63370 (14) | 0.52862 (19) | 0.0467 (4) | |
| H5 | 0.6969 | 0.6399 | 0.5857 | 0.056* | |
| C8 | 0.77430 (12) | 0.44761 (13) | 0.51412 (18) | 0.0424 (4) | |
| C14 | 0.84764 (13) | 0.29681 (15) | 0.2402 (2) | 0.0522 (4) | |
| H14A | 0.7892 | 0.2649 | 0.2718 | 0.063* | |
| H14B | 0.8438 | 0.3044 | 0.1358 | 0.063* | |
| C13 | 0.93139 (16) | 0.22725 (18) | 0.2799 (3) | 0.0715 (6) | |
| H13A | 0.9306 | 0.2126 | 0.3829 | 0.086* | |
| H13B | 0.9252 | 0.1624 | 0.2284 | 0.086* | |
| C10 | 0.95350 (14) | 0.45228 (17) | 0.2795 (2) | 0.0620 (5) | |
| H10A | 0.9596 | 0.5155 | 0.3348 | 0.074* | |
| H10B | 0.9564 | 0.4699 | 0.1776 | 0.074* | |
| C11 | 1.03604 (15) | 0.3808 (2) | 0.3184 (3) | 0.0772 (7) | |
| H11A | 1.0954 | 0.4127 | 0.2907 | 0.093* | |
| H11B | 1.0382 | 0.3700 | 0.4223 | 0.093* | |
| C17 | 0.72453 (19) | 0.6010 (2) | −0.0704 (2) | 0.0764 (7) | |
| H17A | 0.6580 | 0.5890 | −0.0877 | 0.092* | |
| H17B | 0.7608 | 0.5488 | −0.1184 | 0.092* | |
| H17C | 0.7415 | 0.6676 | −0.1071 | 0.092* | |
| C12 | 1.02541 (16) | 0.2775 (2) | 0.2422 (3) | 0.0867 (8) | |
| H12A | 1.0774 | 0.2326 | 0.2710 | 0.104* | |
| H12B | 1.0282 | 0.2876 | 0.1383 | 0.104* |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| Cl2 | 0.0609 (3) | 0.0749 (3) | 0.0461 (3) | −0.0062 (2) | −0.0021 (2) | −0.0182 (2) |
| Cl1 | 0.0520 (3) | 0.0588 (3) | 0.0873 (4) | 0.0111 (2) | 0.0151 (2) | −0.0012 (3) |
| O2 | 0.0461 (6) | 0.0517 (7) | 0.0450 (6) | 0.0078 (6) | −0.0016 (5) | −0.0027 (5) |
| O1 | 0.0572 (8) | 0.0654 (8) | 0.0381 (6) | 0.0063 (6) | −0.0007 (5) | −0.0010 (6) |
| C4 | 0.0433 (8) | 0.0371 (8) | 0.0374 (8) | −0.0017 (7) | 0.0032 (7) | 0.0010 (6) |
| O3 | 0.0725 (9) | 0.0540 (7) | 0.0385 (6) | 0.0110 (7) | 0.0104 (6) | −0.0009 (5) |
| C16 | 0.0452 (9) | 0.0568 (11) | 0.0450 (9) | 0.0032 (8) | 0.0047 (7) | 0.0058 (9) |
| C7 | 0.0452 (9) | 0.0375 (8) | 0.0374 (8) | −0.0028 (7) | 0.0015 (7) | −0.0027 (7) |
| C6 | 0.0523 (10) | 0.0443 (9) | 0.0535 (10) | −0.0017 (8) | 0.0075 (8) | −0.0110 (8) |
| C15 | 0.0502 (9) | 0.0409 (9) | 0.0401 (8) | 0.0013 (7) | 0.0035 (7) | −0.0017 (7) |
| C3 | 0.0483 (9) | 0.0428 (9) | 0.0341 (8) | −0.0050 (7) | 0.0027 (7) | 0.0017 (7) |
| C1 | 0.0441 (9) | 0.0409 (9) | 0.0540 (10) | 0.0017 (7) | 0.0110 (8) | 0.0058 (8) |
| C9 | 0.0434 (9) | 0.0462 (9) | 0.0439 (9) | 0.0007 (7) | 0.0021 (7) | −0.0073 (7) |
| C2 | 0.0423 (9) | 0.0514 (10) | 0.0444 (9) | −0.0025 (8) | 0.0017 (7) | 0.0078 (8) |
| O4 | 0.0823 (10) | 0.0506 (8) | 0.0545 (8) | 0.0025 (7) | −0.0065 (7) | 0.0040 (7) |
| C5 | 0.0449 (9) | 0.0472 (10) | 0.0478 (9) | −0.0006 (8) | −0.0014 (7) | −0.0085 (8) |
| C8 | 0.0417 (8) | 0.0409 (9) | 0.0445 (9) | −0.0021 (7) | −0.0019 (7) | −0.0037 (7) |
| C14 | 0.0444 (9) | 0.0498 (10) | 0.0621 (11) | 0.0047 (8) | −0.0058 (8) | −0.0140 (9) |
| C13 | 0.0658 (13) | 0.0610 (13) | 0.0869 (16) | 0.0216 (11) | −0.0206 (12) | −0.0258 (12) |
| C10 | 0.0538 (11) | 0.0662 (13) | 0.0662 (12) | −0.0137 (10) | 0.0109 (10) | −0.0151 (10) |
| C11 | 0.0405 (10) | 0.1057 (19) | 0.0856 (16) | −0.0067 (11) | 0.0009 (10) | −0.0284 (14) |
| C17 | 0.0956 (17) | 0.0911 (17) | 0.0426 (10) | 0.0107 (14) | 0.0081 (11) | 0.0080 (11) |
| C12 | 0.0493 (12) | 0.112 (2) | 0.0985 (18) | 0.0272 (13) | −0.0115 (12) | −0.0418 (16) |
| Cl2—C3 | 1.7388 (17) | C9—C14 | 1.526 (2) |
| Cl1—C1 | 1.7437 (17) | C2—H2 | 0.9300 |
| O2—C8 | 1.359 (2) | C5—H5 | 0.9300 |
| O2—C9 | 1.457 (2) | C14—C13 | 1.525 (3) |
| O1—C8 | 1.201 (2) | C14—H14A | 0.9700 |
| C4—C5 | 1.395 (2) | C14—H14B | 0.9700 |
| C4—C3 | 1.396 (2) | C13—C12 | 1.520 (4) |
| C4—C7 | 1.473 (2) | C13—H13A | 0.9700 |
| O3—C15 | 1.368 (2) | C13—H13B | 0.9700 |
| O3—C16 | 1.385 (2) | C10—C11 | 1.525 (3) |
| C16—O4 | 1.183 (2) | C10—H10A | 0.9700 |
| C16—C17 | 1.492 (3) | C10—H10B | 0.9700 |
| C7—C15 | 1.336 (2) | C11—C12 | 1.520 (3) |
| C7—C8 | 1.486 (2) | C11—H11A | 0.9700 |
| C6—C1 | 1.377 (3) | C11—H11B | 0.9700 |
| C6—C5 | 1.381 (2) | C17—H17A | 0.9600 |
| C6—H6 | 0.9300 | C17—H17B | 0.9600 |
| C15—C9 | 1.500 (2) | C17—H17C | 0.9600 |
| C3—C2 | 1.384 (2) | C12—H12A | 0.9700 |
| C1—C2 | 1.377 (3) | C12—H12B | 0.9700 |
| C9—C10 | 1.524 (3) | ||
| C8—O2—C9 | 110.17 (12) | O2—C8—C7 | 109.76 (14) |
| C5—C4—C3 | 116.84 (15) | C13—C14—C9 | 111.57 (15) |
| C5—C4—C7 | 118.94 (14) | C13—C14—H14A | 109.3 |
| C3—C4—C7 | 124.16 (15) | C9—C14—H14A | 109.3 |
| C15—O3—C16 | 119.83 (14) | C13—C14—H14B | 109.3 |
| O4—C16—O3 | 121.77 (16) | C9—C14—H14B | 109.3 |
| O4—C16—C17 | 128.21 (19) | H14A—C14—H14B | 108.0 |
| O3—C16—C17 | 110.02 (18) | C12—C13—C14 | 111.3 (2) |
| C15—C7—C4 | 134.48 (15) | C12—C13—H13A | 109.4 |
| C15—C7—C8 | 105.27 (15) | C14—C13—H13A | 109.4 |
| C4—C7—C8 | 120.25 (14) | C12—C13—H13B | 109.4 |
| C1—C6—C5 | 118.93 (16) | C14—C13—H13B | 109.4 |
| C1—C6—H6 | 120.5 | H13A—C13—H13B | 108.0 |
| C5—C6—H6 | 120.5 | C9—C10—C11 | 112.02 (18) |
| C7—C15—O3 | 132.27 (16) | C9—C10—H10A | 109.2 |
| C7—C15—C9 | 112.81 (15) | C11—C10—H10A | 109.2 |
| O3—C15—C9 | 114.90 (14) | C9—C10—H10B | 109.2 |
| C2—C3—C4 | 122.29 (15) | C11—C10—H10B | 109.2 |
| C2—C3—Cl2 | 117.53 (13) | H10A—C10—H10B | 107.9 |
| C4—C3—Cl2 | 120.18 (13) | C12—C11—C10 | 110.95 (17) |
| C6—C1—C2 | 121.56 (16) | C12—C11—H11A | 109.4 |
| C6—C1—Cl1 | 119.41 (14) | C10—C11—H11A | 109.4 |
| C2—C1—Cl1 | 119.02 (14) | C12—C11—H11B | 109.4 |
| O2—C9—C15 | 101.97 (13) | C10—C11—H11B | 109.4 |
| O2—C9—C10 | 108.00 (14) | H11A—C11—H11B | 108.0 |
| C15—C9—C10 | 112.41 (16) | C16—C17—H17A | 109.5 |
| O2—C9—C14 | 108.69 (15) | C16—C17—H17B | 109.5 |
| C15—C9—C14 | 113.02 (14) | H17A—C17—H17B | 109.5 |
| C10—C9—C14 | 112.08 (15) | C16—C17—H17C | 109.5 |
| C1—C2—C3 | 118.43 (16) | H17A—C17—H17C | 109.5 |
| C1—C2—H2 | 120.8 | H17B—C17—H17C | 109.5 |
| C3—C2—H2 | 120.8 | C11—C12—C13 | 110.58 (18) |
| C6—C5—C4 | 121.95 (16) | C11—C12—H12A | 109.5 |
| C6—C5—H5 | 119.0 | C13—C12—H12A | 109.5 |
| C4—C5—H5 | 119.0 | C11—C12—H12B | 109.5 |
| O1—C8—O2 | 121.23 (15) | C13—C12—H12B | 109.5 |
| O1—C8—C7 | 129.01 (16) | H12A—C12—H12B | 108.1 |
| C15—O3—C16—O4 | 7.6 (3) | C7—C15—C9—C14 | 115.89 (18) |
| C15—O3—C16—C17 | −172.61 (17) | O3—C15—C9—C14 | −62.8 (2) |
| C5—C4—C7—C15 | −134.5 (2) | C6—C1—C2—C3 | −0.2 (3) |
| C3—C4—C7—C15 | 48.4 (3) | Cl1—C1—C2—C3 | −179.30 (13) |
| C5—C4—C7—C8 | 44.9 (2) | C4—C3—C2—C1 | 0.4 (3) |
| C3—C4—C7—C8 | −132.16 (17) | Cl2—C3—C2—C1 | 179.61 (13) |
| C4—C7—C15—O3 | −1.1 (3) | C1—C6—C5—C4 | 0.7 (3) |
| C8—C7—C15—O3 | 179.42 (18) | C3—C4—C5—C6 | −0.5 (3) |
| C4—C7—C15—C9 | −179.47 (17) | C7—C4—C5—C6 | −177.72 (16) |
| C8—C7—C15—C9 | 1.07 (19) | C9—O2—C8—O1 | −179.13 (16) |
| C16—O3—C15—C7 | 44.5 (3) | C9—O2—C8—C7 | 0.84 (18) |
| C16—O3—C15—C9 | −137.13 (16) | C15—C7—C8—O1 | 178.78 (18) |
| C5—C4—C3—C2 | −0.1 (2) | C4—C7—C8—O1 | −0.8 (3) |
| C7—C4—C3—C2 | 177.04 (15) | C15—C7—C8—O2 | −1.19 (19) |
| C5—C4—C3—Cl2 | −179.29 (13) | C4—C7—C8—O2 | 179.26 (14) |
| C7—C4—C3—Cl2 | −2.2 (2) | O2—C9—C14—C13 | −67.2 (2) |
| C5—C6—C1—C2 | −0.3 (3) | C15—C9—C14—C13 | −179.60 (18) |
| C5—C6—C1—Cl1 | 178.78 (14) | C10—C9—C14—C13 | 52.1 (2) |
| C8—O2—C9—C15 | −0.20 (17) | C9—C14—C13—C12 | −55.0 (2) |
| C8—O2—C9—C10 | 118.41 (16) | O2—C9—C10—C11 | 67.5 (2) |
| C8—O2—C9—C14 | −119.78 (15) | C15—C9—C10—C11 | 179.18 (16) |
| C7—C15—C9—O2 | −0.60 (19) | C14—C9—C10—C11 | −52.2 (2) |
| O3—C15—C9—O2 | −179.25 (14) | C9—C10—C11—C12 | 54.8 (3) |
| C7—C15—C9—C10 | −116.02 (17) | C10—C11—C12—C13 | −57.3 (3) |
| O3—C15—C9—C10 | 65.3 (2) | C14—C13—C12—C11 | 57.6 (3) |
The authors thank the National Natural Science Foundation of China (No. 30700532) and the Science and Technology Project of Zhejiang Province (No. 2009C21014) for financial support. The authors are grateful to Professor Jianming Gu for the crystal analysis.
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The chemistry of tetronic acid compounds has being receiving increasing attention in recent years, and references cited therein (Fischer et al.,1993; Benson et al., 2000). Bayer company have developed three tetronic acids pesticides-spirodiclofen, spiromesifen and spirotetramat(BAYER Aktiengesellschaft, 1995). The cyclohexyl chair is linked by the spiro carbon atom to the five membered furan ring and the dichlorophenyl group to form the basic structure of the spirodiclofen derivative (Zhao et al., 2009) resulting in the title compound (I), (Fig. 1) by addition of the acetate group. The furan ring is planar with a mean deviation of 0.004 (2) Å. The dihedral angle between benzene and furan rings is 46.73 (2) °. The cyclohexyl ring displays a chair conformation with the deviations of C9 and C12 being 0.625 (2) and -0.680 (2) Å, respectively. Similar distortions were observed in the structure of a spirodiclofen derivative. (Zhou et al., (2009)). As expected, C7=C15, C8=O1 and C16=O4 are typically double bonds with bond distances of 1.336 (2), 1.201 (2) and 1.183 (2) Å, respectively. In the crystal, the molecules are linked through weak intermolecular contacts of C17—H17B···O1, forming chains running along the c axis.