organic compounds
anti-Tricyclo[4.2.1.12,5]deca-3,7-diene-9-endo,10-endo-diol
aDepartment of Chemistry, The University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223, USA
*Correspondence e-mail: djones@uncc.edu, metzkorn@uncc.edu
The title compound, C10H12O2, was synthesized as a candidate for further functionalization. The comprises two independent molecules, both of which are situated on a center of symmetry. Both molecules are involved in a network of hydrogen bonding, with each alcohol group participating in one hydrogen bond as a donor and in a second hydrogen bond as an acceptor.
Related literature
For a related structure, see: Eaton et al. (2002). For synthesis details, see: Baggiolini et al. (1967); Klinsmann et al. (1972); Prakash et al. (1987); Herzog (1958). For synthesis details and compound characterization, see: Amman et al. (1980). For synthetic routes utilizing the title compound as a starting material, see: Amman & Ganter (1977, 1981).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell CAD-4 EXPRESS; data reduction: XCAD4 (Harms & Wocadlo, 1995); 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).
Supporting information
10.1107/S1600536808035423/fj2159sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808035423/fj2159Isup2.hkl
Preparation of dienedione 2 (Herzog, 1958): A solution of sodium ethoxide in ethanol was prepared by adding sodium (44.4 g, 1.94 mol) in small pieces to ethanol (2 l). A mixture of freshly distilled cyclopentadiene monomer (74 g, 1.12 mol) and isoamylnitrite (131 g, 1.12 mol) was then added dropwise at 15–20 °C. The dark brown reaction mixture was stirred for 30 minutes, poured on ice (0.5 kg) and extracted with ether (3 × 300 ml). These organic extracts were discarded, and the aqueous phase was acidified to pH 3 with 2.5 M sulfuric acid (ca 600 ml). After saturating with sodium chloride (ca 250 g) the aqueous phase was extracted with ether (5 × 600 ml). The combined organic phase was concentrated to a third of its volume, washed with water (100 ml) and dried (MgSO4). After removal of the solvent the viscous brown oil obtained (62 g) was refluxed in 1M sulfuric acid (1500 ml) for several hours and stirred at room temperature overnight. The reaction mixture was saturated with sodium chloride (ca 0.5 kg) and extracted with ether (5 × 400 ml). The combined organic phase was concentrated, washed with water, and dried (MgSO4). After removal of the solvent a pale-brown crude product was obtained.
furnished the clean product (27 g, 30% with respect to cyclopentadiene) as a colorless solid.After the
of dienedione 2 to dienedione 3 (Baggiolini et al., 1967; Klinsmann et al., 1972) a reduction with LiAlH4 in THF yielded diol 4 (Amman et al., 1980; Prakash et al., 1987). We were able to grow single crystals of diol 4 from CHCl3 and thus provide structural details of the otherwise fully characterized compound (Amman et al., 1980).H atoms were constrained using a riding model. The olefinic C—H bond lengths were fixed at 0.93 Å and the methine C—H bond lengths at 0.98 Å, with Uiso(H) = 1.2 Ueq. (C). The O—H bond lengths were fixed at 0.82 Å, with Uiso(H) = 1.5 Ueq. (C), and the torsion angles about the C—O bonds were refined.
Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell
CAD-4 EXPRESS (Enraf–Nonius, 1994); data reduction: XCAD4 (Harms & Wocadlo, 1995); 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).C10H12O2 | F(000) = 352 |
Mr = 164.2 | Dx = 1.385 Mg m−3 |
Monoclinic, P21/c | Cu Kα radiation, λ = 1.54184 Å |
Hall symbol: -P 2ybc | Cell parameters from 22 reflections |
a = 10.3730 (14) Å | θ = 36.5–41.8° |
b = 9.8494 (14) Å | µ = 0.77 mm−1 |
c = 7.7128 (11) Å | T = 295 K |
β = 91.850 (11)° | Irregular, brown |
V = 787.59 (19) Å3 | 0.5 × 0.5 × 0.5 mm |
Z = 4 |
Enraf–Nonius CAD-4 diffractometer | θmax = 67.5°, θmin = 4.3° |
Nonprofiled ω/2θ scans | h = −12→12 |
5405 measured reflections | k = −11→11 |
1419 independent reflections | l = −9→9 |
1386 reflections with I > 2σ(I) | 3 standard reflections every 60 min |
Rint = 0.038 | intensity decay: none |
Refinement on F2 | H-atom parameters constrained |
Least-squares matrix: full | w = 1/[σ2(Fo2) + (0.0449P)2 + 0.2879P] where P = (Fo2 + 2Fc2)/3 |
R[F2 > 2σ(F2)] = 0.039 | (Δ/σ)max < 0.001 |
wR(F2) = 0.100 | Δρmax = 0.25 e Å−3 |
S = 1.08 | Δρmin = −0.19 e Å−3 |
1419 reflections | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
112 parameters | Extinction coefficient: 0.025 (2) |
0 restraints |
C10H12O2 | V = 787.59 (19) Å3 |
Mr = 164.2 | Z = 4 |
Monoclinic, P21/c | Cu Kα radiation |
a = 10.3730 (14) Å | µ = 0.77 mm−1 |
b = 9.8494 (14) Å | T = 295 K |
c = 7.7128 (11) Å | 0.5 × 0.5 × 0.5 mm |
β = 91.850 (11)° |
Enraf–Nonius CAD-4 diffractometer | Rint = 0.038 |
5405 measured reflections | 3 standard reflections every 60 min |
1419 independent reflections | intensity decay: none |
1386 reflections with I > 2σ(I) |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.100 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.25 e Å−3 |
1419 reflections | Δρmin = −0.19 e Å−3 |
112 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. |
x | y | z | Uiso*/Ueq | ||
O1 | 0.79276 (9) | 0.37798 (11) | −0.08942 (13) | 0.0372 (3) | |
HO1 | 0.7463 | 0.3684 | −0.1766 | 0.056* | |
O2 | 0.68564 (9) | 0.15711 (10) | 0.08353 (13) | 0.0375 (3) | |
HO2 | 0.7252 | 0.2197 | 0.0396 | 0.056* | |
C10 | 0.44926 (13) | 0.09207 (14) | 0.11758 (19) | 0.0306 (3) | |
H10 | 0.4357 | 0.1453 | 0.2228 | 0.037* | |
C2 | 0.96268 (12) | 0.55937 (14) | −0.15964 (18) | 0.0301 (3) | |
H2 | 0.9118 | 0.607 | −0.2501 | 0.036* | |
C7 | 0.53244 (12) | 0.06358 (14) | −0.15675 (17) | 0.0296 (3) | |
H7 | 0.5816 | 0.0942 | −0.2559 | 0.036* | |
C5 | 1.03469 (12) | 0.36341 (14) | −0.01805 (19) | 0.0309 (3) | |
H5 | 1.0383 | 0.2646 | −0.0035 | 0.037* | |
C1 | 0.92078 (12) | 0.40891 (14) | −0.13877 (18) | 0.0307 (3) | |
H1 | 0.9328 | 0.3648 | −0.251 | 0.037* | |
C6 | 0.55870 (13) | 0.15044 (13) | 0.00772 (18) | 0.0295 (3) | |
H6 | 0.5339 | 0.2437 | −0.0224 | 0.035* | |
C3 | 1.09864 (13) | 0.52746 (16) | −0.21451 (18) | 0.0352 (4) | |
H3 | 1.1454 | 0.5778 | −0.2928 | 0.042* | |
C8 | 0.39004 (13) | 0.09802 (14) | −0.1751 (2) | 0.0342 (4) | |
H8 | 0.3435 | 0.1069 | −0.2796 | 0.041* | |
C9 | 0.34268 (13) | 0.11333 (14) | −0.0195 (2) | 0.0352 (4) | |
H9 | 0.2573 | 0.1339 | 0.0027 | 0.042* | |
C4 | 1.13997 (13) | 0.41653 (15) | −0.1333 (2) | 0.0363 (4) | |
H4 | 1.2207 | 0.3772 | −0.1448 | 0.044* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0281 (5) | 0.0435 (6) | 0.0395 (6) | −0.0110 (4) | −0.0058 (4) | 0.0054 (5) |
O2 | 0.0326 (6) | 0.0343 (6) | 0.0447 (6) | −0.0107 (4) | −0.0120 (4) | 0.0087 (4) |
C10 | 0.0302 (7) | 0.0286 (7) | 0.0332 (7) | 0.0013 (5) | 0.0017 (5) | −0.0035 (5) |
C2 | 0.0264 (7) | 0.0336 (7) | 0.0301 (7) | −0.0008 (5) | −0.0023 (5) | 0.0079 (6) |
C7 | 0.0291 (7) | 0.0315 (7) | 0.0281 (7) | −0.0037 (5) | −0.0017 (5) | 0.0057 (5) |
C5 | 0.0278 (7) | 0.0246 (6) | 0.0403 (8) | 0.0030 (5) | 0.0023 (6) | 0.0017 (6) |
C1 | 0.0276 (7) | 0.0332 (7) | 0.0312 (7) | −0.0041 (5) | 0.0004 (5) | −0.0012 (6) |
C6 | 0.0285 (7) | 0.0241 (6) | 0.0353 (8) | −0.0024 (5) | −0.0060 (5) | 0.0037 (5) |
C3 | 0.0311 (7) | 0.0438 (8) | 0.0310 (7) | −0.0054 (6) | 0.0067 (6) | 0.0003 (6) |
C8 | 0.0313 (7) | 0.0279 (7) | 0.0424 (8) | −0.0039 (6) | −0.0124 (6) | 0.0100 (6) |
C9 | 0.0253 (7) | 0.0271 (7) | 0.0530 (9) | 0.0041 (5) | −0.0012 (6) | 0.0042 (6) |
C4 | 0.0278 (7) | 0.0405 (8) | 0.0411 (8) | 0.0040 (6) | 0.0075 (6) | −0.0050 (6) |
O1—C1 | 1.4261 (16) | C7—H7 | 0.98 |
O1—HO1 | 0.82 | C5—C4 | 1.5227 (18) |
O2—C6 | 1.4248 (16) | C5—C1 | 1.5469 (19) |
O2—HO2 | 0.82 | C5—C2ii | 1.567 (2) |
C10—C9 | 1.520 (2) | C5—H5 | 0.98 |
C10—C6 | 1.5490 (18) | C1—H1 | 0.98 |
C10—C7i | 1.5728 (18) | C6—H6 | 0.98 |
C10—H10 | 0.98 | C3—C4 | 1.324 (2) |
C2—C3 | 1.5183 (18) | C3—H3 | 0.93 |
C2—C1 | 1.5542 (19) | C8—C9 | 1.320 (2) |
C2—C5ii | 1.567 (2) | C8—H8 | 0.93 |
C2—H2 | 0.98 | C9—H9 | 0.93 |
C7—C8 | 1.5178 (18) | C4—H4 | 0.93 |
C7—C6 | 1.5469 (19) | ||
C1—O1—HO1 | 109.5 | C2ii—C5—H5 | 112.5 |
C6—O2—HO2 | 109.5 | O1—C1—C5 | 118.51 (12) |
C9—C10—C6 | 95.61 (11) | O1—C1—C2 | 119.82 (11) |
C9—C10—C7i | 110.40 (11) | C5—C1—C2 | 97.34 (10) |
C6—C10—C7i | 112.38 (11) | O1—C1—H1 | 106.7 |
C9—C10—H10 | 112.4 | C5—C1—H1 | 106.7 |
C6—C10—H10 | 112.4 | C2—C1—H1 | 106.7 |
C7i—C10—H10 | 112.4 | O2—C6—C7 | 119.86 (11) |
C3—C2—C1 | 95.56 (11) | O2—C6—C10 | 118.46 (11) |
C3—C2—C5ii | 110.74 (11) | C7—C6—C10 | 97.50 (10) |
C1—C2—C5ii | 111.67 (11) | O2—C6—H6 | 106.6 |
C3—C2—H2 | 112.6 | C7—C6—H6 | 106.6 |
C1—C2—H2 | 112.6 | C10—C6—H6 | 106.6 |
C5ii—C2—H2 | 112.6 | C4—C3—C2 | 109.17 (12) |
C8—C7—C6 | 95.63 (11) | C4—C3—H3 | 125.4 |
C8—C7—C10i | 110.29 (11) | C2—C3—H3 | 125.4 |
C6—C7—C10i | 111.38 (11) | C9—C8—C7 | 109.28 (12) |
C8—C7—H7 | 112.8 | C9—C8—H8 | 125.4 |
C6—C7—H7 | 112.8 | C7—C8—H8 | 125.4 |
C10i—C7—H7 | 112.8 | C8—C9—C10 | 109.46 (12) |
C4—C5—C1 | 95.60 (11) | C8—C9—H9 | 125.3 |
C4—C5—C2ii | 110.56 (11) | C10—C9—H9 | 125.3 |
C1—C5—C2ii | 112.16 (11) | C3—C4—C5 | 109.41 (12) |
C4—C5—H5 | 112.5 | C3—C4—H4 | 125.3 |
C1—C5—H5 | 112.5 | C5—C4—H4 | 125.3 |
Symmetry codes: (i) −x+1, −y, −z; (ii) −x+2, −y+1, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—HO1···O2iii | 0.82 | 1.95 | 2.7452 (15) | 163 |
O2—HO2···O1 | 0.82 | 1.99 | 2.8005 (14) | 170 |
Symmetry code: (iii) x, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C10H12O2 |
Mr | 164.2 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 10.3730 (14), 9.8494 (14), 7.7128 (11) |
β (°) | 91.850 (11) |
V (Å3) | 787.59 (19) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 0.77 |
Crystal size (mm) | 0.5 × 0.5 × 0.5 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5405, 1419, 1386 |
Rint | 0.038 |
(sin θ/λ)max (Å−1) | 0.599 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.100, 1.08 |
No. of reflections | 1419 |
No. of parameters | 112 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.25, −0.19 |
Computer programs: CAD-4 EXPRESS (Enraf–Nonius, 1994), XCAD4 (Harms & Wocadlo, 1995), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—HO1···O2i | 0.82 | 1.95 | 2.7452 (15) | 163 |
O2—HO2···O1 | 0.82 | 1.99 | 2.8005 (14) | 170 |
Symmetry code: (i) x, −y+1/2, z−1/2. |
Acknowledgements
Acknowledgement is made to the Donors of the American Chemical Society Petroleum Research Fund for partial support of this research. This work was supported in part by funds provided by The University of North Carolina at Charlotte.
References
Amman, W. & Ganter, C. (1977). Helv. Chim. Acta, 60, 1924–1925. CrossRef Web of Science Google Scholar
Amman, W. & Ganter, C. (1981). Helv. Chim. Acta, 65, 966–1022. Google Scholar
Amman, W., Jäggi, F. J. & Ganter, C. (1980). Helv. Chim. Acta, 63, 2019–2041. CrossRef Web of Science Google Scholar
Baggiolini, E., Herzog, E. G., Iwaski, S., Schorta, R. & Schaffner, K. (1967). Helv. Chim. Acta, 50, 297–306. CrossRef CAS Web of Science Google Scholar
Eaton, P. E., Tang, D. & Gilardi, R. (2002). Tetrahedron Lett. 43, 3–5. Web of Science CSD CrossRef CAS Google Scholar
Enraf–Nonius (1994). CAD-4 EXPRESS. Enraf–Nonius, Delft, The Netherlands. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Harms, K. & Wocadlo, S. (1995). XCAD4. University of Marburg, Germany. Google Scholar
Herzog, E. G. (1958). PhD thesis, ETH Zürich, Switzerland. Google Scholar
Klinsmann, U., Gauthier, J., Schaffner, K., Pasternak, M. & Fuchs, B. (1972). Helv. Chim. Acta, 55, 2643–2659. CrossRef CAS Web of Science Google Scholar
Prakash, G. K. S., Farnia, M., Keyanian, S., Olah, G. A., Kuhn, H. J. & Schaffner, K. (1987). J. Am. Chem. Soc. 109, 911–912. CrossRef CAS Web of Science Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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The polycyclic title compound 4 has gained importance as a precursor to a bishomoaromatic dication (Prakash et al., 1987) and was furthermore investigated in a synthetic approach to heterodiamantanes (Amman et al., 1980; Amman & Ganter, 1977; Amman & Ganter, 1981). We were interested in the functionalization of dienedione 3, which is a rather challenging task if one considers the issue of chemoselectivity, regioselectivity and stereoselectivity in a relatively small polycyclic skeleton with two olefinic bonds and two carbonyl groups in close proximity. Furthermore, a thermally induced isomerization of compound 3 to the endo-cyclopentadienone dimer 2 (Baggiolini et al., 1967; Klinsmann et al., 1972) prohibited several functionalization reactions that required forcing conditions. We therefore focused on the thermally stable dienediol 4.
Two pairs of independent molecules (Figure 1) comprise the four molecules in the unit cell, each of which is situated on a center of symmetry. All of the molecules are involved in a network of hydrogen bonding (Figure 2), with each alcohol group participating in one hydrogen bond as a donor and in a second hydrogen bond as an acceptor.