organic compounds
(2S,4R,5S)-5-Allyl-4-hydroxytetrahydro-2-furylmethyl p-toluenesulfonate
aFacultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Puebla, Pue., Mexico, and bCentro de Química, ICUAP, Benemérita Universidad Autónoma de Puebla, Puebla, Pue., Mexico
*Correspondence e-mail: angel.mendoza.m@gmail.com
In the title compound, C15H20O5S, the tetrahydrofuran ring shows an The crystal packing is stabilized by an intermolecular O—H⋯O hydrogen bond, generating a ribbon structure along the a axis. Two weak intermolecular C—H⋯O interactions are also observed.
Related literature
For the synthesis of chiral tetrahydrofurans bearing an allyl group at the C1 position, see: Romero et al. (2006); Sartillo-Melendez et al. (2006); Hernández-Garcia et al. (2009); Paz-Morales et al. (2009). For ring conformation analysis, see: Cremer & Pople (1975).
Experimental
Crystal data
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Data collection
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Data collection: XSCANS (Siemens, 1994); cell XSCANS; data reduction: XSCANS; program(s) used to solve structure: SIR2004 (Burla et al., 2005); 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/S160053680902011X/is2418sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053680902011X/is2418Isup2.hkl
The title compound was obtained from a solution of 1,2-O-isopropylidene-α-D-xylofuranose derivative (1.0 mmol) in 10 ml of dry CH2Cl2. This was treated with allyltrimethylsilane (6.0 mmol) at room temperature over 10 min and the reaction mixture was cooled at 0 °C, then BF3OEt2 (6.0 mmol) was added dropwise. The reaction mixture was warmed at room temperature over 6 hrs and was treated with saturated aqueous solution of NaHCO3 (10 ml). The aqueous layer was extracted three times with CH2Cl2 (20 ml). The organic phase was dried with MgSO4, concentrated and purified by flash on silica gel (hexane: ethyl acetate). The was established by the of 1,2-O-isopropylidene-α-D-xylofuranose of known of starting material.
The H atom bonded to O atom was located in a difference map and the positional parameters were refined, with Uiso(H) = 1.5Ueq(O). C-bound H atoms were placed in geometrical idealized positions (C—H = 0.93–0.98 Å) and were refined as riding, with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(methyl C).
Data collection: XSCANS (Siemens, 1994); cell
XSCANS (Siemens, 1994); data reduction: XSCANS (Siemens, 1994); program(s) used to solve structure: SIR2004 (Burla et al., 2005); 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).C15H20O5S | F(000) = 332 |
Mr = 312.37 | Dx = 1.275 Mg m−3 |
Monoclinic, P21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2yb | Cell parameters from 40 reflections |
a = 5.9420 (12) Å | θ = 4.8–24.7° |
b = 16.966 (3) Å | µ = 0.22 mm−1 |
c = 8.1980 (19) Å | T = 293 K |
β = 100.09 (2)° | Prism, colorless |
V = 813.7 (3) Å3 | 0.6 × 0.4 × 0.3 mm |
Z = 2 |
Bruker P4 diffractometer | Rint = 0.030 |
Radiation source: fine-focus sealed tube | θmax = 25.5°, θmin = 2.4° |
Graphite monochromator | h = −1→7 |
2θ/ω scans | k = −1→20 |
2127 measured reflections | l = −9→9 |
1575 independent reflections | 3 standard reflections every 97 reflections |
1099 reflections with I > 2σ(I) | intensity decay: 7% |
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)] = 0.055 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.126 | w = 1/[σ2(Fo2) + (0.0261P)2 + 0.5527P] where P = (Fo2 + 2Fc2)/3 |
S = 1.07 | (Δ/σ)max < 0.001 |
1575 reflections | Δρmax = 0.26 e Å−3 |
194 parameters | Δρmin = −0.23 e Å−3 |
1 restraint | Absolute structure: Flack (1983), 97 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: −0.1 (2) |
C15H20O5S | V = 813.7 (3) Å3 |
Mr = 312.37 | Z = 2 |
Monoclinic, P21 | Mo Kα radiation |
a = 5.9420 (12) Å | µ = 0.22 mm−1 |
b = 16.966 (3) Å | T = 293 K |
c = 8.1980 (19) Å | 0.6 × 0.4 × 0.3 mm |
β = 100.09 (2)° |
Bruker P4 diffractometer | Rint = 0.030 |
2127 measured reflections | 3 standard reflections every 97 reflections |
1575 independent reflections | intensity decay: 7% |
1099 reflections with I > 2σ(I) |
R[F2 > 2σ(F2)] = 0.055 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.126 | Δρmax = 0.26 e Å−3 |
S = 1.07 | Δρmin = −0.23 e Å−3 |
1575 reflections | Absolute structure: Flack (1983), 97 Friedel pairs |
194 parameters | Absolute structure parameter: −0.1 (2) |
1 restraint |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | 0.2153 (3) | 0.44181 (11) | 0.35980 (19) | 0.0535 (4) | |
O4 | −0.0229 (6) | 0.4463 (4) | 0.3656 (5) | 0.0664 (12) | |
O2 | 0.2892 (7) | 0.5318 (3) | 0.3599 (6) | 0.0586 (12) | |
C9 | 0.3645 (10) | 0.4054 (4) | 0.5478 (7) | 0.0456 (14) | |
O1 | 0.5274 (7) | 0.6525 (3) | 0.5384 (7) | 0.0707 (15) | |
O3 | 0.2936 (8) | 0.4018 (3) | 0.2256 (5) | 0.0673 (14) | |
O5 | 1.1076 (9) | 0.7133 (4) | 0.5830 (9) | 0.092 (2) | |
C10 | 0.5693 (10) | 0.3653 (4) | 0.5528 (8) | 0.0488 (15) | |
H10 | 0.6287 | 0.3575 | 0.4564 | 0.059* | |
C4 | 0.5632 (11) | 0.6353 (4) | 0.3722 (9) | 0.0615 (19) | |
H4 | 0.4558 | 0.6660 | 0.2926 | 0.074* | |
C11 | 0.6847 (12) | 0.3367 (4) | 0.7038 (9) | 0.0611 (19) | |
H11 | 0.8222 | 0.3100 | 0.7077 | 0.073* | |
C14 | 0.2741 (12) | 0.4168 (4) | 0.6894 (8) | 0.0614 (19) | |
H14 | 0.1377 | 0.4441 | 0.6860 | 0.074* | |
C2 | 0.9228 (11) | 0.6608 (4) | 0.5423 (10) | 0.065 (2) | |
H2 | 0.9719 | 0.6073 | 0.5770 | 0.077* | |
C5 | 0.5240 (11) | 0.5496 (4) | 0.3390 (9) | 0.0626 (19) | |
H5A | 0.5446 | 0.5370 | 0.2271 | 0.075* | |
H5B | 0.6317 | 0.5186 | 0.4158 | 0.075* | |
C3 | 0.8076 (12) | 0.6601 (5) | 0.3629 (10) | 0.075 (2) | |
H3A | 0.8799 | 0.6225 | 0.2994 | 0.090* | |
H3B | 0.8110 | 0.7119 | 0.3135 | 0.090* | |
C13 | 0.3905 (13) | 0.3868 (5) | 0.8364 (9) | 0.070 (2) | |
H13 | 0.3274 | 0.3931 | 0.9317 | 0.084* | |
C12 | 0.5976 (12) | 0.3476 (5) | 0.8486 (8) | 0.065 (2) | |
C1 | 0.7298 (11) | 0.6868 (5) | 0.6323 (10) | 0.068 (2) | |
H1 | 0.7159 | 0.7442 | 0.6244 | 0.082* | |
C15 | 0.7242 (14) | 0.3163 (6) | 1.0118 (9) | 0.092 (3) | |
H15A | 0.7423 | 0.2603 | 1.0040 | 0.138* | |
H15B | 0.6388 | 0.3280 | 1.0980 | 0.138* | |
H15C | 0.8719 | 0.3408 | 1.0370 | 0.138* | |
C7 | 0.765 (2) | 0.5786 (7) | 0.8486 (12) | 0.100 (3) | |
H7 | 0.6437 | 0.5466 | 0.8007 | 0.120* | |
C6 | 0.7504 (16) | 0.6637 (5) | 0.8113 (11) | 0.088 (3) | |
H6A | 0.8857 | 0.6888 | 0.8728 | 0.106* | |
H6B | 0.6196 | 0.6849 | 0.8526 | 0.106* | |
C8 | 0.938 (2) | 0.5455 (8) | 0.9454 (12) | 0.135 (5) | |
H8A | 1.0609 | 0.5760 | 0.9949 | 0.162* | |
H8B | 0.9375 | 0.4915 | 0.9645 | 0.162* | |
H5O | 1.26 (2) | 0.695 (7) | 0.578 (14) | 0.162* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0460 (8) | 0.0574 (9) | 0.0559 (9) | −0.0012 (9) | 0.0053 (7) | 0.0015 (10) |
O4 | 0.038 (2) | 0.080 (3) | 0.081 (3) | −0.001 (3) | 0.010 (2) | 0.008 (4) |
O2 | 0.044 (2) | 0.050 (3) | 0.084 (3) | −0.003 (2) | 0.017 (2) | 0.008 (2) |
C9 | 0.046 (3) | 0.043 (3) | 0.048 (3) | −0.006 (3) | 0.008 (3) | 0.002 (3) |
O1 | 0.035 (2) | 0.087 (4) | 0.093 (4) | −0.009 (3) | 0.020 (2) | −0.010 (3) |
O3 | 0.078 (3) | 0.079 (3) | 0.046 (2) | −0.003 (3) | 0.013 (2) | −0.015 (2) |
O5 | 0.050 (3) | 0.082 (4) | 0.146 (5) | −0.010 (3) | 0.022 (4) | −0.015 (4) |
C10 | 0.042 (4) | 0.052 (4) | 0.054 (4) | −0.004 (3) | 0.013 (3) | −0.005 (3) |
C4 | 0.049 (4) | 0.052 (4) | 0.082 (5) | 0.005 (3) | 0.009 (4) | 0.016 (4) |
C11 | 0.053 (4) | 0.059 (5) | 0.068 (4) | 0.008 (4) | 0.000 (3) | 0.009 (4) |
C14 | 0.062 (4) | 0.073 (5) | 0.051 (4) | 0.010 (4) | 0.013 (3) | −0.006 (3) |
C2 | 0.033 (3) | 0.051 (4) | 0.109 (6) | −0.001 (3) | 0.012 (4) | 0.001 (4) |
C5 | 0.048 (4) | 0.061 (4) | 0.083 (5) | 0.004 (4) | 0.021 (4) | 0.012 (4) |
C3 | 0.056 (4) | 0.072 (5) | 0.102 (6) | −0.012 (4) | 0.028 (4) | 0.018 (5) |
C13 | 0.068 (5) | 0.089 (6) | 0.055 (4) | 0.007 (4) | 0.017 (4) | −0.007 (4) |
C12 | 0.062 (5) | 0.072 (5) | 0.057 (4) | −0.013 (4) | 0.000 (3) | −0.001 (4) |
C1 | 0.041 (4) | 0.061 (5) | 0.104 (6) | 0.007 (3) | 0.017 (4) | 0.003 (4) |
C15 | 0.091 (6) | 0.109 (7) | 0.066 (5) | −0.001 (6) | −0.010 (4) | 0.028 (5) |
C7 | 0.117 (9) | 0.100 (8) | 0.080 (6) | −0.020 (7) | 0.014 (6) | −0.011 (6) |
C6 | 0.076 (6) | 0.083 (7) | 0.108 (7) | −0.011 (5) | 0.022 (5) | −0.017 (6) |
C8 | 0.181 (12) | 0.135 (10) | 0.088 (7) | 0.042 (10) | 0.023 (8) | 0.016 (7) |
S1—O4 | 1.427 (4) | C2—C1 | 1.533 (9) |
S1—O3 | 1.437 (5) | C2—H2 | 0.9800 |
S1—O2 | 1.589 (5) | C5—H5A | 0.9700 |
S1—C9 | 1.751 (6) | C5—H5B | 0.9700 |
O2—C5 | 1.467 (7) | C3—H3A | 0.9700 |
C9—C14 | 1.375 (8) | C3—H3B | 0.9700 |
C9—C10 | 1.389 (8) | C13—C12 | 1.386 (10) |
O1—C1 | 1.433 (8) | C13—H13 | 0.9300 |
O1—C4 | 1.445 (8) | C12—C15 | 1.512 (9) |
O5—C2 | 1.408 (8) | C1—C6 | 1.503 (11) |
O5—H5O | 0.96 (11) | C1—H1 | 0.9800 |
C10—C11 | 1.392 (9) | C15—H15A | 0.9600 |
C10—H10 | 0.9300 | C15—H15B | 0.9600 |
C4—C5 | 1.490 (10) | C15—H15C | 0.9600 |
C4—C3 | 1.526 (9) | C7—C8 | 1.311 (14) |
C4—H4 | 0.9800 | C7—C6 | 1.475 (13) |
C11—C12 | 1.388 (9) | C7—H7 | 0.9300 |
C11—H11 | 0.9300 | C6—H6A | 0.9700 |
C14—C13 | 1.378 (9) | C6—H6B | 0.9700 |
C14—H14 | 0.9300 | C8—H8A | 0.9300 |
C2—C3 | 1.509 (10) | C8—H8B | 0.9300 |
O4—S1—O3 | 120.5 (3) | H5A—C5—H5B | 108.5 |
O4—S1—O2 | 103.0 (3) | C2—C3—C4 | 103.1 (6) |
O3—S1—O2 | 109.1 (3) | C2—C3—H3A | 111.1 |
O4—S1—C9 | 110.0 (3) | C4—C3—H3A | 111.1 |
O3—S1—C9 | 109.0 (3) | C2—C3—H3B | 111.1 |
O2—S1—C9 | 104.0 (3) | C4—C3—H3B | 111.1 |
C5—O2—S1 | 117.7 (4) | H3A—C3—H3B | 109.1 |
C14—C9—C10 | 120.9 (6) | C14—C13—C12 | 122.9 (7) |
C14—C9—S1 | 118.7 (5) | C14—C13—H13 | 118.6 |
C10—C9—S1 | 120.3 (5) | C12—C13—H13 | 118.6 |
C1—O1—C4 | 109.9 (5) | C13—C12—C11 | 117.5 (6) |
C2—O5—H5O | 119 (7) | C13—C12—C15 | 122.0 (7) |
C9—C10—C11 | 119.3 (6) | C11—C12—C15 | 120.5 (7) |
C9—C10—H10 | 120.4 | O1—C1—C6 | 109.6 (6) |
C11—C10—H10 | 120.4 | O1—C1—C2 | 104.6 (6) |
O1—C4—C5 | 109.0 (6) | C6—C1—C2 | 117.1 (7) |
O1—C4—C3 | 106.9 (6) | O1—C1—H1 | 108.4 |
C5—C4—C3 | 112.3 (6) | C6—C1—H1 | 108.4 |
O1—C4—H4 | 109.6 | C2—C1—H1 | 108.4 |
C5—C4—H4 | 109.6 | C12—C15—H15A | 109.5 |
C3—C4—H4 | 109.6 | C12—C15—H15B | 109.5 |
C12—C11—C10 | 121.0 (7) | H15A—C15—H15B | 109.5 |
C12—C11—H11 | 119.5 | C12—C15—H15C | 109.5 |
C10—C11—H11 | 119.5 | H15A—C15—H15C | 109.5 |
C9—C14—C13 | 118.4 (6) | H15B—C15—H15C | 109.5 |
C9—C14—H14 | 120.8 | C8—C7—C6 | 123.7 (12) |
C13—C14—H14 | 120.8 | C8—C7—H7 | 118.1 |
O5—C2—C3 | 116.0 (7) | C6—C7—H7 | 118.1 |
O5—C2—C1 | 108.8 (6) | C7—C6—C1 | 116.7 (8) |
C3—C2—C1 | 102.8 (6) | C7—C6—H6A | 108.1 |
O5—C2—H2 | 109.7 | C1—C6—H6A | 108.1 |
C3—C2—H2 | 109.7 | C7—C6—H6B | 108.1 |
C1—C2—H2 | 109.7 | C1—C6—H6B | 108.1 |
O2—C5—C4 | 107.5 (5) | H6A—C6—H6B | 107.3 |
O2—C5—H5A | 110.2 | C7—C8—H8A | 120.0 |
C4—C5—H5A | 110.2 | C7—C8—H8B | 120.0 |
O2—C5—H5B | 110.2 | H8A—C8—H8B | 120.0 |
C4—C5—H5B | 110.2 | ||
O4—S1—O2—C5 | −174.5 (5) | O5—C2—C3—C4 | −151.9 (6) |
O3—S1—O2—C5 | −45.4 (5) | C1—C2—C3—C4 | −33.3 (8) |
C9—S1—O2—C5 | 70.8 (5) | O1—C4—C3—C2 | 21.1 (8) |
O4—S1—C9—C14 | −26.7 (6) | C5—C4—C3—C2 | −98.3 (8) |
O3—S1—C9—C14 | −160.7 (5) | C9—C14—C13—C12 | 1.9 (12) |
O2—S1—C9—C14 | 83.0 (6) | C14—C13—C12—C11 | −2.0 (12) |
O4—S1—C9—C10 | 152.9 (5) | C14—C13—C12—C15 | 179.0 (8) |
O3—S1—C9—C10 | 18.9 (6) | C10—C11—C12—C13 | 0.9 (11) |
O2—S1—C9—C10 | −97.4 (5) | C10—C11—C12—C15 | 179.9 (7) |
C14—C9—C10—C11 | −0.4 (9) | C4—O1—C1—C6 | −148.3 (6) |
S1—C9—C10—C11 | −179.9 (5) | C4—O1—C1—C2 | −21.9 (8) |
C1—O1—C4—C5 | 122.2 (6) | O5—C2—C1—O1 | 158.0 (6) |
C1—O1—C4—C3 | 0.6 (8) | C3—C2—C1—O1 | 34.5 (8) |
C9—C10—C11—C12 | 0.2 (10) | O5—C2—C1—C6 | −80.5 (9) |
C10—C9—C14—C13 | −0.6 (10) | C3—C2—C1—C6 | 156.1 (7) |
S1—C9—C14—C13 | 178.9 (6) | C8—C7—C6—C1 | 120.2 (11) |
S1—O2—C5—C4 | −170.4 (5) | O1—C1—C6—C7 | 59.6 (11) |
O1—C4—C5—O2 | 58.8 (7) | C2—C1—C6—C7 | −59.3 (12) |
C3—C4—C5—O2 | 177.0 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
O5—H5O···O1i | 0.96 (11) | 1.83 (11) | 2.782 (7) | 171 (10) |
C5—H5B···O4i | 0.97 | 2.49 | 3.188 (8) | 129 |
C13—H13···O3ii | 0.93 | 2.46 | 3.350 (8) | 161 |
Symmetry codes: (i) x+1, y, z; (ii) x, y, z+1. |
Experimental details
Crystal data | |
Chemical formula | C15H20O5S |
Mr | 312.37 |
Crystal system, space group | Monoclinic, P21 |
Temperature (K) | 293 |
a, b, c (Å) | 5.9420 (12), 16.966 (3), 8.1980 (19) |
β (°) | 100.09 (2) |
V (Å3) | 813.7 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.22 |
Crystal size (mm) | 0.6 × 0.4 × 0.3 |
Data collection | |
Diffractometer | Bruker P4 diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2127, 1575, 1099 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.055, 0.126, 1.07 |
No. of reflections | 1575 |
No. of parameters | 194 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.26, −0.23 |
Absolute structure | Flack (1983), 97 Friedel pairs |
Absolute structure parameter | −0.1 (2) |
Computer programs: XSCANS (Siemens, 1994), SIR2004 (Burla et al., 2005), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O5—H5O···O1i | 0.96 (11) | 1.83 (11) | 2.782 (7) | 171 (10) |
C5—H5B···O4i | 0.97 | 2.49 | 3.188 (8) | 129 |
C13—H13···O3ii | 0.93 | 2.46 | 3.350 (8) | 161 |
Symmetry codes: (i) x+1, y, z; (ii) x, y, z+1. |
Acknowledgements
We gratefully acknowledge financial support from CONACYT (grant No. 62203 and Graduate Scholarship 159362) and Facultad de Ciencias Químicas (BUAP).
References
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During the course of our investigations led to the synthesis of chiral tetrahydrofurans bearing an allyl group at C1 position (Romero et al., 2006; Sartillo-Melendez et al., 2006; Hernández-Garcia et al., 2009; Paz-Morales et al., 2009), the title compound was obtained and separated by crystallization from the its C1-epimer.
In the crystal structure, the tosyl ring and terminal double bond reach a close distance from each one (C7···C13 and C8···C12 = ca. 3.9 Å), with allyl π orbital being perpendicular for those of the aromatic ring. The furane ring (O1/C1–C4) shows an envelope conformation on atom C2 with puckering parameters (Cremer & Pople, 1975) q2 = 0.348 (8) Å and ϕ2 = 72.3 (12)°. The molecules are linked by hydrogen bond [O1···O5 = 2.782 (7) Å] interactions, building a ribbon structure along the [100] direction.