organic compounds
10-Ethynyl-2,3,6,6a,9,10-hexahydro-1H-6,9-methanopyrrolo[2,1-i][2,1]benzothiazol-10-ol 5,5-dioxide
aDepartment of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
*Correspondence e-mail: bpatrick@chem.ubc.ca
In the title compound, C13H15NO3S, the sole classical hydrogen-bond donor is involved in an intramolecular O—H⋯N hydrogen bond. In the pairs of molecules related by inversion centres are linked by pairs of weak intermolecular C—H⋯O interactions; these centrosymmetric pairs are, in turn, linked further by weak intermolecular C—H⋯O interactions, forming two-dimensional sheets oriented parallel to (101).
Related literature
For background to our ongoing research on the synthesis of himandrine and related et al. (2007); Liang & Ciufolini (2008).
see: CiufoliniExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SIR97 (Altomare et al., 1999); 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
https://doi.org/10.1107/S1600536809038410/lh2908sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809038410/lh2908Isup2.hkl
Potassium carbonate (137 mg, 0.99 mmol) was added to a solution of 10- [(trimethylsilyl)ethynyl]-2,3,6,6a,9,10-hexahydro-1H-6,9-methanopyrrolo [2,1-i][2,1]benzisothiazol-10-ol 5,5-dioxide (110 mg, 0.33 mmol) in MeOH (1 ml). Upon the completion of the reaction, the mixture was concentrated and dried over high vacuum.
of the residue (EtOAc / hexanes = 1 / 2) gave 78 mg (0.29 mmol, 89%) product as a colourless solid. X-ray quality single crystals were obtained by slow evaporation of a dichloromethane/hexanes (1:2v/v) solution of the title compound over two weeks.H atoms boned to C atoms were placed in calculated positions with C-H = 0.93-1.00Å and included in the
with Uiso(H) = 1.2Ueq(C). The hydroxyl H atom was refined indpendently with an isotropic displacement parameter.The oxidative amidation of
offers interesting opportunities in the synthesis of nitrogenous substances. We employed spirocyclization of phenolic to prepare a tricyclic intermediate in the ongoing research on the synthesis of himandrine and related (Liang et al., 2008; Ciufolini et al., 2007). The molecular stucture of the title compound is shown in Fig.1. In the pairs of molecules for related by inversion centres are linked by weak intermolecular C—H···O interactions (Table 1, Fig. 2). These centrosymmetric pairs, are in turn, linked further by weak intermolecular C—H···O interactions to form 2-D sheets oriented parallel to the (101) plane, as shown in Fig.3.For background information, see: Ciufolini et al. (2007); Liang & Ciufolini (2008).
Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SIR97 (Altomare et al., 1999); 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).C13H15NO3S | F(000) = 1120 |
Mr = 265.32 | Dx = 1.463 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 6461 reflections |
a = 24.113 (3) Å | θ = 2.7–28.1° |
b = 6.6202 (7) Å | µ = 0.27 mm−1 |
c = 15.111 (2) Å | T = 173 K |
β = 92.625 (5)° | Prism, colourless |
V = 2409.6 (5) Å3 | 0.35 × 0.27 × 0.18 mm |
Z = 8 |
Bruker X8 APEXII diffractometer | 2889 independent reflections |
Radiation source: fine-focus sealed tube | 2523 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.030 |
φ and ω scans | θmax = 28.0°, θmin = 1.7° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −31→30 |
Tmin = 0.877, Tmax = 0.963 | k = −7→8 |
13946 measured reflections | l = −19→19 |
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)] = 0.034 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.095 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0543P)2 + 1.8974P] where P = (Fo2 + 2Fc2)/3 |
2889 reflections | (Δ/σ)max = 0.001 |
167 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.42 e Å−3 |
C13H15NO3S | V = 2409.6 (5) Å3 |
Mr = 265.32 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 24.113 (3) Å | µ = 0.27 mm−1 |
b = 6.6202 (7) Å | T = 173 K |
c = 15.111 (2) Å | 0.35 × 0.27 × 0.18 mm |
β = 92.625 (5)° |
Bruker X8 APEXII diffractometer | 2889 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 2523 reflections with I > 2σ(I) |
Tmin = 0.877, Tmax = 0.963 | Rint = 0.030 |
13946 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 0 restraints |
wR(F2) = 0.095 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.33 e Å−3 |
2889 reflections | Δρmin = −0.42 e Å−3 |
167 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 | ||
C1 | 0.08386 (6) | 0.8014 (2) | 0.24477 (10) | 0.0260 (3) | |
H1 | 0.0804 | 0.8017 | 0.1819 | 0.031* | |
C2 | 0.10447 (6) | 0.6218 (2) | 0.29734 (9) | 0.0227 (3) | |
H2 | 0.1137 | 0.5077 | 0.2573 | 0.027* | |
C3 | 0.15678 (6) | 0.69210 (19) | 0.35283 (9) | 0.0167 (3) | |
C4 | 0.07087 (6) | 0.9590 (2) | 0.29339 (10) | 0.0241 (3) | |
H4 | 0.0580 | 1.0826 | 0.2681 | 0.029* | |
C5 | 0.13832 (5) | 0.86156 (19) | 0.41981 (8) | 0.0143 (2) | |
C6 | 0.07809 (5) | 0.9277 (2) | 0.39197 (9) | 0.0179 (3) | |
H6 | 0.0669 | 1.0507 | 0.4252 | 0.021* | |
C7 | 0.05869 (6) | 0.5588 (2) | 0.36090 (10) | 0.0246 (3) | |
H7A | 0.0251 | 0.5144 | 0.3261 | 0.030* | |
H7B | 0.0720 | 0.4446 | 0.3985 | 0.030* | |
C8 | 0.04457 (6) | 0.7400 (2) | 0.41948 (9) | 0.0192 (3) | |
H8 | 0.0038 | 0.7682 | 0.4163 | 0.023* | |
C10 | 0.17913 (6) | 1.0368 (2) | 0.43416 (9) | 0.0197 (3) | |
H10A | 0.2177 | 0.9926 | 0.4252 | 0.024* | |
H10B | 0.1698 | 1.1497 | 0.3931 | 0.024* | |
C11 | 0.17199 (6) | 1.0997 (2) | 0.53035 (10) | 0.0258 (3) | |
H11A | 0.2046 | 1.1761 | 0.5543 | 0.031* | |
H11B | 0.1382 | 1.1827 | 0.5361 | 0.031* | |
C12 | 0.16678 (6) | 0.8971 (2) | 0.57668 (9) | 0.0238 (3) | |
H12A | 0.2038 | 0.8389 | 0.5919 | 0.029* | |
H12B | 0.1462 | 0.9112 | 0.6315 | 0.029* | |
C17 | 0.19816 (6) | 0.7687 (2) | 0.29199 (9) | 0.0187 (3) | |
C18 | 0.23235 (6) | 0.8204 (2) | 0.24254 (10) | 0.0237 (3) | |
H18 | 0.2597 | 0.8618 | 0.2030 | 0.028* | |
N13 | 0.13541 (5) | 0.76842 (17) | 0.51039 (7) | 0.0166 (2) | |
O9 | 0.18201 (4) | 0.52655 (15) | 0.39984 (7) | 0.0242 (2) | |
O15 | 0.04568 (4) | 0.85899 (19) | 0.58703 (7) | 0.0300 (3) | |
O16 | 0.06809 (5) | 0.50367 (17) | 0.56167 (8) | 0.0316 (3) | |
S14 | 0.069910 (13) | 0.70937 (5) | 0.53140 (2) | 0.01917 (11) | |
H9O | 0.1739 (10) | 0.542 (3) | 0.4521 (16) | 0.049 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0192 (7) | 0.0402 (9) | 0.0183 (7) | −0.0073 (6) | −0.0010 (5) | 0.0025 (6) |
C2 | 0.0242 (7) | 0.0233 (7) | 0.0210 (7) | −0.0070 (6) | 0.0053 (5) | −0.0054 (5) |
C3 | 0.0182 (6) | 0.0136 (6) | 0.0187 (6) | 0.0007 (5) | 0.0044 (5) | 0.0015 (5) |
C4 | 0.0178 (6) | 0.0313 (8) | 0.0228 (7) | 0.0008 (6) | −0.0017 (5) | 0.0094 (6) |
C5 | 0.0148 (6) | 0.0128 (6) | 0.0156 (6) | 0.0005 (5) | 0.0023 (4) | 0.0017 (5) |
C6 | 0.0152 (6) | 0.0180 (6) | 0.0205 (6) | 0.0021 (5) | 0.0012 (5) | 0.0031 (5) |
C7 | 0.0235 (7) | 0.0255 (7) | 0.0252 (7) | −0.0096 (6) | 0.0052 (6) | −0.0040 (6) |
C8 | 0.0149 (6) | 0.0239 (7) | 0.0188 (6) | −0.0023 (5) | 0.0015 (5) | 0.0018 (5) |
C10 | 0.0200 (6) | 0.0163 (6) | 0.0228 (7) | −0.0038 (5) | 0.0026 (5) | −0.0006 (5) |
C11 | 0.0277 (7) | 0.0236 (7) | 0.0261 (7) | −0.0062 (6) | 0.0012 (6) | −0.0059 (6) |
C12 | 0.0223 (7) | 0.0293 (8) | 0.0194 (7) | −0.0024 (6) | −0.0020 (5) | −0.0013 (6) |
C17 | 0.0187 (6) | 0.0164 (6) | 0.0209 (6) | 0.0019 (5) | 0.0022 (5) | −0.0003 (5) |
C18 | 0.0231 (7) | 0.0232 (7) | 0.0252 (7) | −0.0003 (5) | 0.0067 (6) | 0.0016 (6) |
N13 | 0.0147 (5) | 0.0194 (6) | 0.0160 (5) | −0.0001 (4) | 0.0027 (4) | 0.0027 (4) |
O9 | 0.0301 (5) | 0.0163 (5) | 0.0271 (6) | 0.0078 (4) | 0.0097 (4) | 0.0062 (4) |
O15 | 0.0232 (5) | 0.0426 (7) | 0.0248 (5) | 0.0037 (5) | 0.0081 (4) | −0.0073 (5) |
O16 | 0.0286 (6) | 0.0307 (6) | 0.0357 (6) | −0.0060 (5) | 0.0048 (5) | 0.0151 (5) |
S14 | 0.01614 (17) | 0.0232 (2) | 0.01853 (18) | −0.00074 (12) | 0.00492 (12) | 0.00346 (12) |
C1—C4 | 1.322 (2) | C7—H7B | 0.9900 |
C1—C2 | 1.501 (2) | C8—S14 | 1.7832 (14) |
C1—H1 | 0.9500 | C8—H8 | 1.0000 |
C2—C7 | 1.5532 (19) | C10—C11 | 1.529 (2) |
C2—C3 | 1.5536 (19) | C10—H10A | 0.9900 |
C2—H2 | 1.0000 | C10—H10B | 0.9900 |
C3—O9 | 1.4269 (16) | C11—C12 | 1.521 (2) |
C3—C17 | 1.4770 (18) | C11—H11A | 0.9900 |
C3—C5 | 1.5882 (17) | C11—H11B | 0.9900 |
C4—C6 | 1.5062 (19) | C12—N13 | 1.4938 (18) |
C4—H4 | 0.9500 | C12—H12A | 0.9900 |
C5—N13 | 1.5057 (16) | C12—H12B | 0.9900 |
C5—C10 | 1.5304 (18) | C17—C18 | 1.188 (2) |
C5—C6 | 1.5563 (17) | C18—H18 | 0.9500 |
C6—C8 | 1.5497 (18) | N13—S14 | 1.6716 (11) |
C6—H6 | 1.0000 | O9—H9O | 0.83 (2) |
C7—C8 | 1.538 (2) | O15—S14 | 1.4402 (11) |
C7—H7A | 0.9900 | O16—S14 | 1.4378 (11) |
C4—C1—C2 | 114.33 (13) | C7—C8—C6 | 109.82 (11) |
C4—C1—H1 | 122.8 | C7—C8—S14 | 112.45 (10) |
C2—C1—H1 | 122.8 | C6—C8—S14 | 100.68 (9) |
C1—C2—C7 | 108.20 (12) | C7—C8—H8 | 111.2 |
C1—C2—C3 | 106.82 (11) | C6—C8—H8 | 111.2 |
C7—C2—C3 | 109.22 (11) | S14—C8—H8 | 111.2 |
C1—C2—H2 | 110.8 | C11—C10—C5 | 103.97 (11) |
C7—C2—H2 | 110.8 | C11—C10—H10A | 111.0 |
C3—C2—H2 | 110.8 | C5—C10—H10A | 111.0 |
O9—C3—C17 | 106.79 (11) | C11—C10—H10B | 111.0 |
O9—C3—C2 | 110.84 (11) | C5—C10—H10B | 111.0 |
C17—C3—C2 | 108.77 (11) | H10A—C10—H10B | 109.0 |
O9—C3—C5 | 110.54 (10) | C12—C11—C10 | 102.28 (11) |
C17—C3—C5 | 111.79 (10) | C12—C11—H11A | 111.3 |
C2—C3—C5 | 108.13 (10) | C10—C11—H11A | 111.3 |
C1—C4—C6 | 114.92 (13) | C12—C11—H11B | 111.3 |
C1—C4—H4 | 122.5 | C10—C11—H11B | 111.3 |
C6—C4—H4 | 122.5 | H11A—C11—H11B | 109.2 |
N13—C5—C10 | 103.78 (10) | N13—C12—C11 | 104.12 (11) |
N13—C5—C6 | 106.21 (10) | N13—C12—H12A | 110.9 |
C10—C5—C6 | 114.26 (11) | C11—C12—H12A | 110.9 |
N13—C5—C3 | 108.43 (10) | N13—C12—H12B | 110.9 |
C10—C5—C3 | 115.39 (10) | C11—C12—H12B | 110.9 |
C6—C5—C3 | 108.17 (10) | H12A—C12—H12B | 109.0 |
C4—C6—C8 | 109.72 (12) | C18—C17—C3 | 176.65 (15) |
C4—C6—C5 | 111.73 (11) | C17—C18—H18 | 180.0 |
C8—C6—C5 | 101.16 (10) | C12—N13—C5 | 109.44 (10) |
C4—C6—H6 | 111.3 | C12—N13—S14 | 117.37 (9) |
C8—C6—H6 | 111.3 | C5—N13—S14 | 110.62 (8) |
C5—C6—H6 | 111.3 | C3—O9—H9O | 105.3 (16) |
C8—C7—C2 | 109.18 (11) | O16—S14—O15 | 116.53 (7) |
C8—C7—H7A | 109.8 | O16—S14—N13 | 108.95 (6) |
C2—C7—H7A | 109.8 | O15—S14—N13 | 111.24 (6) |
C8—C7—H7B | 109.8 | O16—S14—C8 | 113.28 (7) |
C2—C7—H7B | 109.8 | O15—S14—C8 | 110.17 (7) |
H7A—C7—H7B | 108.3 | N13—S14—C8 | 94.53 (6) |
C4—C1—C2—C7 | 58.42 (16) | C5—C6—C8—C7 | −67.18 (13) |
C4—C1—C2—C3 | −59.07 (15) | C4—C6—C8—S14 | 169.71 (9) |
C1—C2—C3—O9 | −175.33 (11) | C5—C6—C8—S14 | 51.57 (10) |
C7—C2—C3—O9 | 67.86 (14) | N13—C5—C10—C11 | −29.30 (13) |
C1—C2—C3—C17 | −58.21 (14) | C6—C5—C10—C11 | 85.90 (13) |
C7—C2—C3—C17 | −175.02 (12) | C3—C5—C10—C11 | −147.76 (11) |
C1—C2—C3—C5 | 63.37 (13) | C5—C10—C11—C12 | 40.51 (14) |
C7—C2—C3—C5 | −53.44 (14) | C10—C11—C12—N13 | −35.77 (14) |
C2—C1—C4—C6 | −1.13 (18) | O9—C3—C17—C18 | 35 (3) |
O9—C3—C5—N13 | −18.73 (14) | C2—C3—C17—C18 | −85 (3) |
C17—C3—C5—N13 | −137.54 (11) | C5—C3—C17—C18 | 156 (3) |
C2—C3—C5—N13 | 102.76 (11) | C11—C12—N13—C5 | 18.13 (14) |
O9—C3—C5—C10 | 97.12 (13) | C11—C12—N13—S14 | −108.98 (11) |
C17—C3—C5—C10 | −21.69 (16) | C10—C5—N13—C12 | 6.98 (13) |
C2—C3—C5—C10 | −141.39 (11) | C6—C5—N13—C12 | −113.80 (12) |
O9—C3—C5—C6 | −133.51 (11) | C3—C5—N13—C12 | 130.14 (11) |
C17—C3—C5—C6 | 107.68 (12) | C10—C5—N13—S14 | 137.81 (9) |
C2—C3—C5—C6 | −12.02 (13) | C6—C5—N13—S14 | 17.02 (12) |
C1—C4—C6—C8 | −55.26 (16) | C3—C5—N13—S14 | −99.03 (10) |
C1—C4—C6—C5 | 56.10 (17) | C12—N13—S14—O16 | −103.72 (11) |
N13—C5—C6—C4 | −161.09 (11) | C5—N13—S14—O16 | 129.74 (9) |
C10—C5—C6—C4 | 85.14 (14) | C12—N13—S14—O15 | 26.08 (12) |
C3—C5—C6—C4 | −44.87 (14) | C5—N13—S14—O15 | −100.46 (9) |
N13—C5—C6—C8 | −44.42 (12) | C12—N13—S14—C8 | 139.77 (10) |
C10—C5—C6—C8 | −158.19 (11) | C5—N13—S14—C8 | 13.23 (10) |
C3—C5—C6—C8 | 71.81 (12) | C7—C8—S14—O16 | −34.96 (11) |
C1—C2—C7—C8 | −56.73 (15) | C6—C8—S14—O16 | −151.79 (9) |
C3—C2—C7—C8 | 59.20 (15) | C7—C8—S14—O15 | −167.50 (9) |
C2—C7—C8—C6 | 3.27 (16) | C6—C8—S14—O15 | 75.67 (10) |
C2—C7—C8—S14 | −107.96 (12) | C7—C8—S14—N13 | 77.91 (10) |
C4—C6—C8—C7 | 50.96 (15) | C6—C8—S14—N13 | −38.92 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
O9—H9O···N13 | 0.83 (2) | 1.99 (2) | 2.606 (1) | 131 (2) |
C8—H8···O16i | 1.00 | 2.53 | 3.183 (2) | 123 |
C18—H18···O9ii | 0.95 | 2.40 | 3.341 (2) | 169 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x+1/2, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C13H15NO3S |
Mr | 265.32 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 173 |
a, b, c (Å) | 24.113 (3), 6.6202 (7), 15.111 (2) |
β (°) | 92.625 (5) |
V (Å3) | 2409.6 (5) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.27 |
Crystal size (mm) | 0.35 × 0.27 × 0.18 |
Data collection | |
Diffractometer | Bruker X8 APEXII |
Absorption correction | Multi-scan (SADABS; Bruker, 2008) |
Tmin, Tmax | 0.877, 0.963 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13946, 2889, 2523 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.661 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.095, 1.03 |
No. of reflections | 2889 |
No. of parameters | 167 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.33, −0.42 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SIR97 (Altomare et al., 1999), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O9—H9O···N13 | 0.83 (2) | 1.99 (2) | 2.606 (1) | 131 (2) |
C8—H8···O16i | 1.00 | 2.53 | 3.183 (2) | 123 |
C18—H18···O9ii | 0.95 | 2.40 | 3.341 (2) | 169 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x+1/2, y+1/2, −z+1/2. |
Acknowledgements
Financial support by the University of British Columbia, the Canada Research Chair Program, NSERC, CIHR, and Merck Frosst Canada, Ltd, is gratefully acknowledged.
References
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The oxidative amidation of phenols offers interesting opportunities in the synthesis of nitrogenous substances. We employed spirocyclization of phenolic sulfonamides to prepare a tricyclic intermediate in the ongoing research on the synthesis of himandrine and related alkaloids (Liang et al., 2008; Ciufolini et al., 2007). The molecular stucture of the title compound is shown in Fig.1. In the crystal structure, pairs of molecules for related by inversion centres are linked by weak intermolecular C—H···O interactions (Table 1, Fig. 2). These centrosymmetric pairs, are in turn, linked further by weak intermolecular C—H···O interactions to form 2-D sheets oriented parallel to the (101) plane, as shown in Fig.3.