organic compounds
(±)-N-(3-Hydroxy-1,2-diphenylpropyl)-4-methylbenzenesulfonamide
aDepartment of Chemistry, University of Auckland, Private Bag 92019, Auckland, New Zealand
*Correspondence e-mail: d.barker@auckland.ac.nz
In the title compound, C22H23NO3S, the relative stereochemistry of the two stereogenic centres is anti with respect to the H atoms. The molecular packing of the crystal shows a double-strand arrangement, consisting of one strand of (S*,S*) enantiomers and one strand of (R*,R*) enantiomers. Both strands lie parallel to each other along the a axis. Each strand is made up of dimers in which the molecules are connected to each other via an intermolecular O—H⋯O hydrogen bond between the hydroxyl groups and an O—H⋯π interaction with the aromatic ring. These units are then connected to neighbouring dimers via N—H⋯O hydrogen bonds and C—H⋯O interactions. Intramolecular C—H⋯O interactions are also observed.
Related literature
For a similar organocatalytic α-oxdiation of see: Engqvist et al. (2005). For a related structure, see: Chinnakali et al. (2007).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: SMART (Siemens, 1995); cell SAINT (Siemens, 1995); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPIII (Burnett & Johnson, 1996) and Mercury (Macrae et al., 2006); software used to prepare material for publication: WinGX (Farrugia, 1999) and publCIF (Westrip, 2008).
Supporting information
10.1107/S1600536808028948/pv2094sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808028948/pv2094Isup2.hkl
To a solution of 3-phenyl-2-tosyl-1,2-oxaziridine (551 mg, 2.00 mmol) in distilled THF (8 ml) was added under ambient atmosphere (S)-proline (69.1 mg, 0.600 mmol). After 5 minutes, phenylacetaldehyde (0.450 ml, 4.00 mmol) was added. After 1 h, sodium borohydride (151 mg, 4.00 mmol) was added to the mixture at 273 K and the mixture was stirred overnight. The mixture was then poured onto a biphasic mixture of HCl (1 mol l-1) and EtOAc (1:1, 8 ml) at 273 K and vigorously stirred for 10 minutes. The organic phase was separated and the aqueous phase was extracted with EtOAc (8 ml x 4). The combined organic extracts were washed with brine, dried over MgSO4 and concentrated in vacuo to afford a yellow oil. Purification by flash
using hexane–EtOAc (2:1 to 1:1) as yielded the title sulfonamide as a white solid (6%). Recrystallization of the title sulfonamide in hexane–CH2Cl2 (4:1) afforded colourless needles.Hydrogen atoms attached to carbon and nitrogen atoms were placed in calculated positions and refined using the riding model (N—H = 0.86 Å & C—H 0.93–0.97 Å), with Uiso(H) = 1.2 and 1.5Ueq(parent atom) for the nonmethyl and methyl groups, respectively. The hydroxyl H-atom was disordered over two sites involved in either O—H···O hydrogen bonding to a neighboring alcohol or O—H···π interactions with a neighboring phenyl ring. In the final these two hydrogen atoms were included, fixed in these two positions. After the final a peak of electron density of 1.05 e Å-3, distanced 0.82 Å from the sulfonamide oxygen O2, was observed. No evidence of disorder could be discerned. This peak was also present in an alternate using data that had been corrected for absorption. This was indistinguishable from structure presented here.
Data collection: SMART (Siemens, 1995); cell
SAINT (Siemens, 1995); data reduction: SAINT (Siemens, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPIII (Burnett & Johnson, 1996) and Mercury (Macrae et al., 2006); software used to prepare material for publication: WinGX (Farrugia, 1999) and publCIF (Westrip, 2008).Fig. 1. The molecular structure and atom numbering scheme of the title compound with displacement ellipsoids drawn at the 50% probability level for non-H atoms. | |
Fig. 2. The unit cell packing of the title compound showing double strands of (8S*,15S*) and (8R*,15R*) enantiomers. A third strand of (8S*,15S*) sulfonamide (dimmed) which is positioned below the unit cell is also depicted in the figure to show the hydrogen bondings between the strands. Dashed lines represent hydrogen bonds; hydrogen atoms not involved in hydrogen bonding have been omitted for clarity. |
C22H23NO3S | Dx = 1.358 Mg m−3 |
Mr = 381.47 | Melting point: 426.7(8) K |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
a = 39.4702 (16) Å | Cell parameters from 6191 reflections |
b = 5.4270 (2) Å | θ = 1.0–28.0° |
c = 17.4287 (7) Å | µ = 0.20 mm−1 |
β = 91.028 (2)° | T = 90 K |
V = 3732.7 (3) Å3 | Needle, colourless |
Z = 8 | 0.4 × 0.16 × 0.14 mm |
F(000) = 1616 |
Bruker SMART diffractometer with APEXII CCD detector | 3763 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.042 |
Graphite monochromator | θmax = 28.0°, θmin = 1.0° |
ω scans | h = −51→51 |
22582 measured reflections | k = −7→7 |
4478 independent reflections | l = −22→22 |
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)] = 0.066 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.193 | H-atom parameters constrained |
S = 1.13 | w = 1/[σ2(Fo2) + (0.0794P)2 + 19.2449P] where P = (Fo2 + 2Fc2)/3 |
4478 reflections | (Δ/σ)max < 0.001 |
245 parameters | Δρmax = 1.06 e Å−3 |
15 restraints | Δρmin = −0.64 e Å−3 |
C22H23NO3S | V = 3732.7 (3) Å3 |
Mr = 381.47 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 39.4702 (16) Å | µ = 0.20 mm−1 |
b = 5.4270 (2) Å | T = 90 K |
c = 17.4287 (7) Å | 0.4 × 0.16 × 0.14 mm |
β = 91.028 (2)° |
Bruker SMART diffractometer with APEXII CCD detector | 3763 reflections with I > 2σ(I) |
22582 measured reflections | Rint = 0.042 |
4478 independent reflections |
R[F2 > 2σ(F2)] = 0.066 | 15 restraints |
wR(F2) = 0.193 | H-atom parameters constrained |
S = 1.13 | w = 1/[σ2(Fo2) + (0.0794P)2 + 19.2449P] where P = (Fo2 + 2Fc2)/3 |
4478 reflections | Δρmax = 1.06 e Å−3 |
245 parameters | Δρmin = −0.64 e Å−3 |
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 | Occ. (<1) | |
S1 | 0.158723 (16) | 0.06828 (12) | 0.28375 (4) | 0.01431 (19) | |
O1 | 0.14448 (5) | −0.1745 (4) | 0.27404 (12) | 0.0186 (4) | |
O2 | 0.17401 (5) | 0.1376 (4) | 0.35572 (11) | 0.0209 (5) | |
O3 | 0.02222 (6) | 0.6152 (6) | 0.18428 (13) | 0.0382 (7) | |
H3A | 0.0092 | 0.6156 | 0.2229 | 0.057* | 0.50 |
H3B | 0.0008 | 0.5906 | 0.1799 | 0.057* | 0.50 |
N1 | 0.12844 (6) | 0.2624 (4) | 0.26835 (13) | 0.0150 (5) | |
H1 | 0.1283 | 0.3959 | 0.2949 | 0.018* | |
C5 | 0.19060 (7) | 0.1017 (5) | 0.21504 (15) | 0.0138 (5) | |
C15 | 0.07339 (7) | 0.4164 (5) | 0.23044 (15) | 0.0154 (5) | |
H15 | 0.0843 | 0.5788 | 0.2313 | 0.019* | |
C6 | 0.21262 (7) | 0.3020 (5) | 0.22046 (16) | 0.0178 (6) | |
H6 | 0.2090 | 0.4253 | 0.2564 | 0.021* | |
C21 | 0.06575 (7) | 0.5353 (6) | 0.36894 (17) | 0.0185 (6) | |
H21 | 0.0786 | 0.6753 | 0.3597 | 0.022* | |
C2 | 0.24609 (7) | 0.1333 (5) | 0.11774 (16) | 0.0170 (5) | |
C16 | 0.05938 (6) | 0.3698 (5) | 0.30955 (15) | 0.0150 (5) | |
C10 | 0.10495 (7) | 0.0475 (5) | 0.07735 (16) | 0.0182 (6) | |
H10 | 0.0919 | −0.0855 | 0.0928 | 0.022* | |
C22 | 0.04555 (7) | 0.4221 (6) | 0.16845 (16) | 0.0231 (6) | |
H22A | 0.0555 | 0.4487 | 0.1187 | 0.028* | |
H22B | 0.0338 | 0.2653 | 0.1672 | 0.028* | |
C17 | 0.04036 (7) | 0.1590 (5) | 0.32496 (17) | 0.0194 (6) | |
H17 | 0.0361 | 0.0451 | 0.2861 | 0.023* | |
C14 | 0.13191 (7) | 0.4350 (5) | 0.10406 (16) | 0.0176 (6) | |
H14 | 0.1369 | 0.5635 | 0.1377 | 0.021* | |
C8 | 0.10096 (6) | 0.2233 (5) | 0.21110 (14) | 0.0133 (5) | |
H8 | 0.0914 | 0.0591 | 0.2196 | 0.016* | |
C9 | 0.11285 (6) | 0.2352 (5) | 0.12954 (15) | 0.0142 (5) | |
C13 | 0.14347 (7) | 0.4453 (6) | 0.02985 (17) | 0.0200 (6) | |
H13 | 0.1563 | 0.5791 | 0.0141 | 0.024* | |
C3 | 0.22313 (8) | −0.0595 (6) | 0.11139 (18) | 0.0235 (6) | |
H3 | 0.2263 | −0.1793 | 0.0740 | 0.028* | |
C4 | 0.19557 (7) | −0.0777 (6) | 0.15959 (18) | 0.0213 (6) | |
H4 | 0.1806 | −0.2092 | 0.1547 | 0.026* | |
C11 | 0.11646 (8) | 0.0577 (6) | 0.00254 (17) | 0.0221 (6) | |
H11 | 0.1111 | −0.0685 | −0.0316 | 0.027* | |
C19 | 0.03415 (8) | 0.2868 (6) | 0.45638 (17) | 0.0235 (6) | |
H19 | 0.0257 | 0.2601 | 0.5051 | 0.028* | |
C7 | 0.24002 (7) | 0.3160 (6) | 0.17183 (16) | 0.0193 (6) | |
H7 | 0.2546 | 0.4502 | 0.1755 | 0.023* | |
C12 | 0.13588 (7) | 0.2554 (6) | −0.02141 (16) | 0.0205 (6) | |
H12 | 0.1438 | 0.2611 | −0.0713 | 0.025* | |
C20 | 0.05321 (8) | 0.4953 (6) | 0.44183 (17) | 0.0230 (6) | |
H20 | 0.0576 | 0.6085 | 0.4808 | 0.028* | |
C18 | 0.02775 (7) | 0.1177 (6) | 0.39810 (18) | 0.0222 (6) | |
H18 | 0.0151 | −0.0229 | 0.4078 | 0.027* | |
C1 | 0.27747 (7) | 0.1382 (6) | 0.06967 (18) | 0.0231 (6) | |
H1A | 0.2945 | 0.0338 | 0.0926 | 0.035* | |
H1B | 0.2859 | 0.3039 | 0.0669 | 0.035* | |
H1C | 0.2720 | 0.0801 | 0.0189 | 0.035* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0145 (3) | 0.0139 (3) | 0.0144 (3) | 0.0006 (2) | −0.0002 (2) | 0.0022 (2) |
O1 | 0.0180 (9) | 0.0144 (10) | 0.0235 (10) | −0.0022 (8) | 0.0015 (7) | 0.0024 (8) |
O2 | 0.0228 (10) | 0.0240 (11) | 0.0157 (10) | −0.0013 (8) | −0.0030 (7) | 0.0036 (8) |
O3 | 0.0277 (12) | 0.0627 (18) | 0.0240 (12) | 0.0281 (13) | −0.0033 (9) | −0.0032 (12) |
N1 | 0.0165 (11) | 0.0146 (11) | 0.0137 (10) | 0.0022 (9) | −0.0020 (8) | −0.0027 (9) |
C5 | 0.0145 (12) | 0.0117 (12) | 0.0152 (12) | 0.0015 (10) | −0.0017 (9) | 0.0012 (10) |
C15 | 0.0172 (12) | 0.0137 (13) | 0.0154 (12) | 0.0023 (10) | 0.0018 (9) | 0.0000 (10) |
C6 | 0.0231 (13) | 0.0142 (13) | 0.0162 (12) | −0.0019 (11) | −0.0006 (10) | −0.0021 (10) |
C21 | 0.0176 (13) | 0.0172 (14) | 0.0206 (14) | −0.0016 (11) | −0.0003 (10) | 0.0011 (11) |
C2 | 0.0156 (12) | 0.0180 (14) | 0.0174 (13) | 0.0015 (10) | −0.0015 (9) | 0.0038 (11) |
C16 | 0.0131 (11) | 0.0150 (13) | 0.0169 (13) | 0.0033 (10) | 0.0014 (9) | 0.0014 (10) |
C10 | 0.0206 (13) | 0.0148 (13) | 0.0191 (13) | −0.0010 (11) | −0.0010 (10) | −0.0024 (11) |
C22 | 0.0188 (13) | 0.0355 (18) | 0.0152 (13) | 0.0079 (12) | 0.0006 (10) | −0.0009 (12) |
C17 | 0.0209 (13) | 0.0151 (14) | 0.0221 (14) | 0.0009 (11) | 0.0003 (10) | −0.0006 (11) |
C14 | 0.0187 (13) | 0.0177 (14) | 0.0165 (13) | −0.0011 (11) | 0.0005 (10) | −0.0034 (11) |
C8 | 0.0151 (12) | 0.0125 (12) | 0.0123 (12) | 0.0001 (10) | −0.0006 (9) | −0.0012 (10) |
C9 | 0.0124 (11) | 0.0144 (13) | 0.0158 (12) | 0.0021 (10) | −0.0009 (9) | −0.0016 (10) |
C13 | 0.0189 (13) | 0.0205 (14) | 0.0206 (14) | −0.0010 (11) | 0.0034 (10) | 0.0003 (11) |
C3 | 0.0268 (15) | 0.0190 (15) | 0.0251 (15) | −0.0022 (12) | 0.0069 (12) | −0.0067 (12) |
C4 | 0.0208 (14) | 0.0169 (14) | 0.0262 (15) | −0.0059 (11) | 0.0034 (11) | −0.0064 (12) |
C11 | 0.0285 (15) | 0.0198 (15) | 0.0180 (14) | 0.0032 (12) | −0.0019 (11) | −0.0074 (11) |
C19 | 0.0239 (14) | 0.0286 (17) | 0.0183 (13) | 0.0051 (12) | 0.0063 (11) | 0.0065 (12) |
C7 | 0.0195 (13) | 0.0168 (14) | 0.0213 (14) | −0.0057 (11) | −0.0016 (10) | 0.0013 (11) |
C12 | 0.0200 (13) | 0.0288 (16) | 0.0129 (12) | 0.0047 (12) | 0.0029 (10) | −0.0011 (11) |
C20 | 0.0304 (16) | 0.0231 (15) | 0.0155 (13) | 0.0014 (12) | 0.0008 (11) | −0.0009 (12) |
C18 | 0.0197 (14) | 0.0179 (14) | 0.0291 (15) | 0.0008 (11) | 0.0037 (11) | 0.0065 (12) |
C1 | 0.0191 (13) | 0.0259 (16) | 0.0245 (15) | 0.0008 (12) | 0.0032 (11) | 0.0053 (13) |
S1—O2 | 1.432 (2) | C22—H22A | 0.9700 |
S1—O1 | 1.441 (2) | C22—H22B | 0.9700 |
S1—N1 | 1.612 (2) | C17—C18 | 1.395 (4) |
S1—C5 | 1.762 (3) | C17—H17 | 0.9300 |
O3—C22 | 1.425 (4) | C14—C13 | 1.381 (4) |
O3—H3A | 0.8541 | C14—C9 | 1.397 (4) |
O3—H3B | 0.8579 | C14—H14 | 0.9300 |
N1—C8 | 1.476 (3) | C8—C9 | 1.506 (3) |
N1—H1 | 0.8600 | C8—H8 | 0.9800 |
C5—C4 | 1.389 (4) | C13—C12 | 1.393 (4) |
C5—C6 | 1.394 (4) | C13—H13 | 0.9300 |
C15—C16 | 1.516 (4) | C3—C4 | 1.390 (4) |
C15—C22 | 1.528 (4) | C3—H3 | 0.9300 |
C15—C8 | 1.552 (4) | C4—H4 | 0.9300 |
C15—H15 | 0.9800 | C11—C12 | 1.387 (4) |
C6—C7 | 1.388 (4) | C11—H11 | 0.9300 |
C6—H6 | 0.9300 | C19—C20 | 1.384 (5) |
C21—C20 | 1.389 (4) | C19—C18 | 1.389 (5) |
C21—C16 | 1.390 (4) | C19—H19 | 0.9300 |
C21—H21 | 0.9300 | C7—H7 | 0.9300 |
C2—C3 | 1.387 (4) | C12—H12 | 0.9300 |
C2—C7 | 1.392 (4) | C20—H20 | 0.9300 |
C2—C1 | 1.508 (4) | C18—H18 | 0.9300 |
C16—C17 | 1.397 (4) | C1—H1A | 0.9600 |
C10—C11 | 1.389 (4) | C1—H1B | 0.9600 |
C10—C9 | 1.397 (4) | C1—H1C | 0.9600 |
C10—H10 | 0.9300 | ||
O2—S1—O1 | 120.01 (13) | C13—C14—C9 | 121.2 (3) |
O2—S1—N1 | 105.87 (13) | C13—C14—H14 | 119.4 |
O1—S1—N1 | 106.94 (12) | C9—C14—H14 | 119.4 |
O2—S1—C5 | 105.87 (12) | N1—C8—C9 | 113.2 (2) |
O1—S1—C5 | 107.24 (12) | N1—C8—C15 | 105.4 (2) |
N1—S1—C5 | 110.85 (12) | C9—C8—C15 | 114.1 (2) |
C22—O3—H3A | 123.7 | N1—C8—H8 | 108.0 |
C22—O3—H3B | 120.5 | C9—C8—H8 | 108.0 |
H3A—O3—H3B | 57.6 | C15—C8—H8 | 108.0 |
C8—N1—S1 | 123.52 (19) | C14—C9—C10 | 118.3 (3) |
C8—N1—H1 | 118.2 | C14—C9—C8 | 120.8 (2) |
S1—N1—H1 | 118.2 | C10—C9—C8 | 120.9 (2) |
C4—C5—C6 | 119.9 (3) | C14—C13—C12 | 120.0 (3) |
C4—C5—S1 | 120.8 (2) | C14—C13—H13 | 120.0 |
C6—C5—S1 | 119.1 (2) | C12—C13—H13 | 120.0 |
C16—C15—C22 | 112.2 (2) | C2—C3—C4 | 121.5 (3) |
C16—C15—C8 | 110.7 (2) | C2—C3—H3 | 119.2 |
C22—C15—C8 | 111.0 (2) | C4—C3—H3 | 119.2 |
C16—C15—H15 | 107.6 | C5—C4—C3 | 119.5 (3) |
C22—C15—H15 | 107.6 | C5—C4—H4 | 120.2 |
C8—C15—H15 | 107.6 | C3—C4—H4 | 120.2 |
C7—C6—C5 | 119.6 (3) | C12—C11—C10 | 120.3 (3) |
C7—C6—H6 | 120.2 | C12—C11—H11 | 119.8 |
C5—C6—H6 | 120.2 | C10—C11—H11 | 119.8 |
C20—C21—C16 | 121.2 (3) | C20—C19—C18 | 119.9 (3) |
C20—C21—H21 | 119.4 | C20—C19—H19 | 120.1 |
C16—C21—H21 | 119.4 | C18—C19—H19 | 120.1 |
C3—C2—C7 | 118.1 (3) | C6—C7—C2 | 121.3 (3) |
C3—C2—C1 | 120.7 (3) | C6—C7—H7 | 119.3 |
C7—C2—C1 | 121.1 (3) | C2—C7—H7 | 119.3 |
C21—C16—C17 | 118.5 (3) | C11—C12—C13 | 119.5 (3) |
C21—C16—C15 | 120.4 (3) | C11—C12—H12 | 120.2 |
C17—C16—C15 | 121.2 (3) | C13—C12—H12 | 120.2 |
C11—C10—C9 | 120.6 (3) | C19—C20—C21 | 119.9 (3) |
C11—C10—H10 | 119.7 | C19—C20—H20 | 120.0 |
C9—C10—H10 | 119.7 | C21—C20—H20 | 120.0 |
O3—C22—C15 | 109.7 (2) | C19—C18—C17 | 120.0 (3) |
O3—C22—H22A | 109.7 | C19—C18—H18 | 120.0 |
C15—C22—H22A | 109.7 | C17—C18—H18 | 120.0 |
O3—C22—H22B | 109.7 | C2—C1—H1A | 109.5 |
C15—C22—H22B | 109.7 | C2—C1—H1B | 109.5 |
H22A—C22—H22B | 108.2 | H1A—C1—H1B | 109.5 |
C18—C17—C16 | 120.6 (3) | C2—C1—H1C | 109.5 |
C18—C17—H17 | 119.7 | H1A—C1—H1C | 109.5 |
C16—C17—H17 | 119.7 | H1B—C1—H1C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 | 2.45 | 3.122 (3) | 136 |
O3—H3A···O3ii | 0.85 | 2.06 | 2.910 (5) | 179.7 |
C4—H4···O1 | 0.93 | 2.55 | 2.909 (4) | 104 |
C8—H8···O1 | 0.98 | 2.61 | 2.958 (3) | 101 |
C1—H1A···O2iii | 0.96 | 2.63 | 3.557 (4) | 161 |
C1—H1B···O2iv | 0.96 | 2.74 | 3.552 (4) | 142 |
O3—H3B···C16ii | 0.86 | 2.67 | 3.489 (4) | 160.1 |
O3—H3B···C17ii | 0.86 | 2.85 | 3.499 (4) | 133.7 |
Symmetry codes: (i) x, y+1, z; (ii) −x, y, −z+1/2; (iii) −x+1/2, y−1/2, −z+1/2; (iv) −x+1/2, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C22H23NO3S |
Mr | 381.47 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 90 |
a, b, c (Å) | 39.4702 (16), 5.4270 (2), 17.4287 (7) |
β (°) | 91.028 (2) |
V (Å3) | 3732.7 (3) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.20 |
Crystal size (mm) | 0.4 × 0.16 × 0.14 |
Data collection | |
Diffractometer | Bruker SMART diffractometer with APEXII CCD detector |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22582, 4478, 3763 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.661 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.066, 0.193, 1.13 |
No. of reflections | 4478 |
No. of parameters | 245 |
No. of restraints | 15 |
H-atom treatment | H-atom parameters constrained |
w = 1/[σ2(Fo2) + (0.0794P)2 + 19.2449P] where P = (Fo2 + 2Fc2)/3 | |
Δρmax, Δρmin (e Å−3) | 1.06, −0.64 |
Computer programs: SMART (Siemens, 1995), SAINT (Siemens, 1995), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEPIII (Burnett & Johnson, 1996) and Mercury (Macrae et al., 2006), WinGX (Farrugia, 1999) and publCIF (Westrip, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 | 2.45 | 3.122 (3) | 135.9 |
O3—H3A···O3ii | 0.85 | 2.06 | 2.910 (5) | 179.7 |
C4—H4···O1 | 0.93 | 2.55 | 2.909 (4) | 103.5 |
C8—H8···O1 | 0.98 | 2.61 | 2.958 (3) | 100.9 |
C1—H1A···O2iii | 0.96 | 2.63 | 3.557 (4) | 161.1 |
C1—H1B···O2iv | 0.96 | 2.74 | 3.552 (4) | 142.2 |
O3—H3B···C16ii | 0.86 | 2.67 | 3.489 (4) | 160.1 |
O3—H3B···C17ii | 0.86 | 2.85 | 3.499 (4) | 133.7 |
Symmetry codes: (i) x, y+1, z; (ii) −x, y, −z+1/2; (iii) −x+1/2, y−1/2, −z+1/2; (iv) −x+1/2, y+1/2, −z+1/2. |
Acknowledgements
The authors thank Tania Groutso for the data collection. The awards of an International Doctoral Scholarship from the University of Auckland and a New Zealand International Doctoral Research Scholarship from Education New Zealand (to STT) are greatly appreciated.
References
Burnett, M. N. & Johnson, C. K. (1996). ORTEPIII. Report ORNL-6895. Oak Ridge National Laboratory, Tennessee, USA. Google Scholar
Chinnakali, K., Poornachandran, M., Raghunathan, R. & Fun, H.-K. (2007). Acta Cryst. E63, o1030–o1031. Web of Science CSD CrossRef IUCr Journals Google Scholar
Engqvist, M., Casas, J., Sunden, H., Ibrahem, I. & Cordova, A. (2005). Tetrahedron Lett. 46, 2053–2057. Web of Science CrossRef CAS Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Macrae, C. F., Edgington, P. R., McCabe, P., Pidcock, E., Shields, G. P., Taylor, R., Towler, M. & van de Streek, J. (2006). J. Appl. Cryst. 39, 453–457. Web of Science CrossRef CAS IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Siemens (1995). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA. Google Scholar
Westrip, S. P. (2008). publCIF. In preparation. Google Scholar
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The title racemic sulfonamide was obtained unintentionally as a product from the study of the organocatalytic α-oxidation of phenylacetaldehyde catalysed by (S)-proline. The relative stereochemistry of the two stereogenic centres was established by X-ray crystallography as anti with respect to the H atoms of C8 and C15 (Fig. 1).
The molecular packing of the crystal shows a double strand arrangement, which consists of one strand of (8S*,15S*) enantiomers and one strand of (8R*,15R*) enantiomers. Both strands lie parallel to each other along the a axis and a number of hydrogen bonds has been observed throughtout the crystal lattice.
Each strand is made up of homodimeric units in which the sulfonamide molecules are connected to each other by intermolecular hydrogen bonds between the hydroxyl groups (O3—H3···O3) as well as the O—H···π interaction with the aromatic ring. The dimer is, in turn, linked to the next dimer along the strand via non-conventional hydrogen bonds (C1—H1A···O2—S1 and C1—H1B···O2—S1). Finally, neighbouring strand of the same stereochemistry are connected to each other via conventional (N1—H1···O1—S1) and non-conventional (C1—H1A···O2—S1 and C1—H1B···O2—S1) hydrogen bonds (Fig. 2).
Non-conventional intramolecular hydrogen interactions (C4—H4···O1—S1 and C8—H8···O1—S1) are also observed with a distance of 2.55 and 2.61 Å between the hydrogen and the acceptor oxygen (Table 1).