organic compounds
(3R,3aS,6aR)-2,5-Dimethyl-3-(5-phenyl-2-thienyl)perhydropyrrolo[3,4-d][1,2]oxazole-4,6-dione
aDepartment of Chemistry, Faculty of Arts and Sciences, Mehmet Akif Ersoy University, TR-15030 Burdur, Turkey, bDepartment of Chemistry, Faculty of Arts and Sciences, Gazi University, Ankara, Turkey, and cDepartment of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, TR-55139 Kurupelit Samsun, Turkey
*Correspondence e-mail: orhanb@omu.edu.tr
The 17H16N2O3S, exhibits intramolecular C—H⋯S and intermolecular C—H⋯S and C—H⋯O hydrogen bonds, C—S⋯N [S⋯N = 3.033 (2) Å and C—S⋯N = 142.76 (9)°] interactions, and C—H⋯π interactions; these interactions generate S(4), S(6) and R22(14) ring motifs. The isoxazole ring adopts an with the N atom displaced by 0.672 (2) Å from the plane of the other ring atoms. The thiophene ring is oriented with respect to the succinimide and phenyl rings at dihedral angles of 40.03 (12) and 5.21 (13)°, respectively. The dihedral angle between the succinimide and phenyl rings is 39.38 (12)°.
of the title compound, CRelated literature
For general background, see: Huisgen (1960); Black et al. (1975); Richman (2001); De Clercq (2002); Donadas et al. (2004); Merino et al. (2003); Chiacchio et al. (2003); Iannazzo et al. (2002). For related literature, see: Heaney et al. (2001). For ring motif details, see: Bernstein et al. (1995); Etter (1990).
Experimental
Crystal data
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Data collection: X-AREA (Stoe & Cie, 2002); cell X-AREA; data reduction: X-RED32 (Stoe & Cie, 2002); 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/S1600536808020102/hk2484sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808020102/hk2484Isup2.hkl
N-Methyl-C-(-5-Phenylthiophen) nitrone, (II), was prepared from 5-Phenylthiophenecarbaldehyde, N-methyl-hydroxylamine hydrochloride and sodium carbonate in CH2Cl2 according to the literature method (Heaney et al., 2001). For the preparation of the title compound, (II) (657 mg, 3 mmol) and N-methylmaleimide (370 mg, 3.3 mmol) were dissolved in benzene (50 ml). The reaction mixture was refluxed for 12 h, and monitored by TLC. After evaporation of the solvent, the reaction mixture was separated by
using the mixture of petroleum ether/ethyl acetate (2:1) as the eluant. The cis-isomer, (I), was recrystallized from CHCl3/n-hexane (mp: 452,9-454,4 K).1451 Friedel pairs were averaged before the final
but the could not be determined unambiguously, although Si atom is present. The methine H atoms, H11, H12 and H13, were located in difference syntheses and refined isotropically [C-H = 0.95 (3)-1.04 (3) Å; Uiso(H) = 0.035 (6)-0.071 (10) Å2]. The remaining H atoms were positioned geometrically, with C-H = 0.93 and 0.96 Å for aromatic and methyl H, respectively, and constrained to ride on their parent atoms with Uiso(H) = xUeq(C), where x = 1.5 for C14 methyl H and x = 1.2 for all other H atoms.Data collection: X-AREA (Stoe & Cie, 2002); cell
X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); 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).C17H16N2O3S | F(000) = 688 |
Mr = 328.38 | Dx = 1.400 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 6395 reflections |
a = 12.7768 (7) Å | θ = 1.8–28.0° |
b = 10.9803 (6) Å | µ = 0.22 mm−1 |
c = 11.1069 (9) Å | T = 296 K |
V = 1558.22 (17) Å3 | Prism, colorless |
Z = 4 | 0.65 × 0.46 × 0.27 mm |
Stoe IPDSII diffractometer | 3332 independent reflections |
Radiation source: sealed X-ray tube, 12 x 0.4 mm long-fine focus | 2899 reflections with I > 2σ(I) |
Plane graphite monochromator | Rint = 0.051 |
Detector resolution: 6.67 pixels mm-1 | θmax = 27.5°, θmin = 2.5° |
ω scan rotation method | h = −13→16 |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | k = −13→14 |
Tmin = 0.889, Tmax = 0.935 | l = −12→14 |
6395 measured reflections |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H atoms treated by a mixture of independent and constrained refinement |
R[F2 > 2σ(F2)] = 0.037 | w = 1/[σ2(Fo2) + (0.0659P)2] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.099 | (Δ/σ)max < 0.001 |
S = 1.04 | Δρmax = 0.22 e Å−3 |
3332 reflections | Δρmin = −0.22 e Å−3 |
221 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
1 restraint | Extinction coefficient: 0.0122 (17) |
Primary atom site location: structure-invariant direct methods | Absolute structure: Flack (1983) |
Secondary atom site location: difference Fourier map | Absolute structure parameter: −0.13 (8) |
C17H16N2O3S | V = 1558.22 (17) Å3 |
Mr = 328.38 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 12.7768 (7) Å | µ = 0.22 mm−1 |
b = 10.9803 (6) Å | T = 296 K |
c = 11.1069 (9) Å | 0.65 × 0.46 × 0.27 mm |
Stoe IPDSII diffractometer | 3332 independent reflections |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | 2899 reflections with I > 2σ(I) |
Tmin = 0.889, Tmax = 0.935 | Rint = 0.051 |
6395 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.099 | Δρmax = 0.22 e Å−3 |
S = 1.04 | Δρmin = −0.22 e Å−3 |
3332 reflections | Absolute structure: Flack (1983) |
221 parameters | Absolute structure parameter: −0.13 (8) |
1 restraint |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | 0.64659 (16) | 0.19809 (17) | 0.66560 (19) | 0.0427 (4) | |
C2 | 0.7443 (2) | 0.1782 (2) | 0.7188 (2) | 0.0585 (6) | |
H2 | 0.8048 | 0.1938 | 0.6749 | 0.070* | |
C3 | 0.7523 (2) | 0.1360 (3) | 0.8346 (3) | 0.0701 (7) | |
H3 | 0.8181 | 0.1227 | 0.8680 | 0.084* | |
C4 | 0.6641 (3) | 0.1132 (3) | 0.9022 (3) | 0.0721 (8) | |
H4 | 0.6696 | 0.0857 | 0.9811 | 0.087* | |
C5 | 0.5678 (2) | 0.1320 (3) | 0.8504 (2) | 0.0731 (8) | |
H5 | 0.5075 | 0.1163 | 0.8948 | 0.088* | |
C6 | 0.55911 (19) | 0.1738 (2) | 0.7341 (2) | 0.0593 (6) | |
H6 | 0.4930 | 0.1857 | 0.7011 | 0.071* | |
C7 | 0.63920 (16) | 0.24233 (18) | 0.5415 (2) | 0.0411 (4) | |
C8 | 0.71619 (15) | 0.2782 (2) | 0.4653 (3) | 0.0530 (5) | |
H8 | 0.7866 | 0.2789 | 0.4864 | 0.064* | |
C9 | 0.67952 (15) | 0.3144 (2) | 0.3508 (2) | 0.0511 (5) | |
H9 | 0.7236 | 0.3398 | 0.2891 | 0.061* | |
C10 | 0.57421 (14) | 0.30882 (18) | 0.33939 (19) | 0.0409 (4) | |
C11 | 0.50963 (15) | 0.3425 (2) | 0.23306 (19) | 0.0432 (4) | |
C12 | 0.46103 (16) | 0.4708 (2) | 0.22929 (19) | 0.0458 (4) | |
C13 | 0.36143 (17) | 0.4492 (2) | 0.15649 (19) | 0.0473 (5) | |
C14 | 0.4393 (2) | 0.1435 (2) | 0.1799 (2) | 0.0589 (6) | |
H14A | 0.3761 | 0.0963 | 0.1764 | 0.088* | |
H14B | 0.4884 | 0.1044 | 0.2327 | 0.088* | |
H14C | 0.4690 | 0.1498 | 0.1007 | 0.088* | |
C15 | 0.42400 (17) | 0.51840 (19) | 0.3496 (2) | 0.0490 (5) | |
C16 | 0.27329 (17) | 0.4855 (2) | 0.2411 (2) | 0.0506 (5) | |
C17 | 0.2543 (2) | 0.5584 (3) | 0.4516 (3) | 0.0716 (8) | |
H17A | 0.2708 | 0.6414 | 0.4711 | 0.086* | |
H17B | 0.2700 | 0.5072 | 0.5192 | 0.086* | |
H17C | 0.1812 | 0.5520 | 0.4326 | 0.086* | |
N1 | 0.41573 (13) | 0.26461 (15) | 0.22512 (15) | 0.0419 (4) | |
N2 | 0.31576 (15) | 0.52026 (17) | 0.34890 (18) | 0.0504 (4) | |
O1 | 0.47725 (15) | 0.55117 (17) | 0.43306 (17) | 0.0690 (5) | |
O2 | 0.18093 (14) | 0.48473 (19) | 0.2184 (2) | 0.0786 (6) | |
O3 | 0.35719 (12) | 0.32333 (14) | 0.12785 (14) | 0.0506 (4) | |
S1 | 0.51891 (3) | 0.25445 (5) | 0.47066 (6) | 0.04736 (14) | |
H11 | 0.5520 (18) | 0.3385 (19) | 0.161 (2) | 0.038 (5)* | |
H12 | 0.511 (2) | 0.535 (3) | 0.191 (3) | 0.068 (8)* | |
H13 | 0.356 (2) | 0.494 (3) | 0.079 (3) | 0.064 (8)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0437 (10) | 0.0377 (9) | 0.0468 (11) | 0.0072 (8) | −0.0082 (8) | −0.0047 (8) |
C2 | 0.0489 (11) | 0.0677 (15) | 0.0590 (14) | 0.0064 (10) | −0.0144 (11) | 0.0013 (11) |
C3 | 0.0682 (16) | 0.0798 (17) | 0.0622 (16) | 0.0142 (13) | −0.0284 (14) | −0.0017 (13) |
C4 | 0.085 (2) | 0.0832 (17) | 0.0478 (14) | 0.0131 (15) | −0.0162 (13) | 0.0040 (12) |
C5 | 0.0745 (18) | 0.096 (2) | 0.0489 (14) | 0.0006 (14) | 0.0033 (14) | 0.0095 (13) |
C6 | 0.0491 (13) | 0.0780 (16) | 0.0508 (13) | 0.0091 (10) | −0.0068 (10) | 0.0064 (11) |
C7 | 0.0322 (9) | 0.0409 (9) | 0.0501 (12) | 0.0039 (8) | −0.0056 (8) | −0.0030 (7) |
C8 | 0.0282 (8) | 0.0666 (13) | 0.0643 (13) | 0.0027 (8) | −0.0018 (11) | 0.0054 (14) |
C9 | 0.0299 (9) | 0.0670 (13) | 0.0564 (12) | 0.0011 (9) | 0.0055 (9) | 0.0079 (10) |
C10 | 0.0305 (8) | 0.0497 (10) | 0.0426 (10) | 0.0005 (7) | 0.0039 (8) | 0.0012 (8) |
C11 | 0.0339 (9) | 0.0595 (11) | 0.0361 (9) | −0.0023 (8) | 0.0046 (8) | 0.0052 (8) |
C12 | 0.0392 (9) | 0.0555 (11) | 0.0428 (10) | −0.0083 (9) | −0.0024 (8) | 0.0111 (9) |
C13 | 0.0448 (10) | 0.0572 (11) | 0.0398 (11) | −0.0034 (9) | −0.0074 (8) | 0.0106 (8) |
C14 | 0.0554 (13) | 0.0613 (13) | 0.0600 (14) | 0.0043 (10) | −0.0034 (11) | −0.0127 (10) |
C15 | 0.0496 (11) | 0.0466 (10) | 0.0507 (11) | 0.0009 (9) | −0.0084 (10) | 0.0050 (8) |
C16 | 0.0437 (12) | 0.0522 (11) | 0.0559 (14) | −0.0022 (8) | −0.0037 (9) | 0.0045 (9) |
C17 | 0.0770 (17) | 0.0676 (15) | 0.0704 (19) | 0.0072 (12) | 0.0215 (14) | −0.0051 (13) |
N1 | 0.0374 (8) | 0.0523 (9) | 0.0361 (8) | −0.0025 (7) | −0.0026 (6) | −0.0002 (7) |
N2 | 0.0497 (10) | 0.0516 (9) | 0.0499 (10) | −0.0011 (8) | 0.0039 (9) | 0.0046 (7) |
O1 | 0.0711 (12) | 0.0742 (11) | 0.0618 (11) | 0.0082 (9) | −0.0242 (9) | −0.0139 (9) |
O2 | 0.0387 (9) | 0.0955 (13) | 0.1016 (16) | 0.0011 (8) | −0.0111 (9) | −0.0080 (12) |
O3 | 0.0506 (9) | 0.0618 (9) | 0.0394 (7) | −0.0024 (7) | −0.0121 (6) | 0.0002 (6) |
S1 | 0.0287 (2) | 0.0711 (3) | 0.0423 (2) | −0.0033 (2) | −0.0012 (2) | 0.0108 (2) |
C1—C6 | 1.378 (3) | C11—C12 | 1.540 (3) |
C1—C2 | 1.398 (3) | C11—H11 | 0.97 (2) |
C1—C7 | 1.464 (3) | C12—C15 | 1.511 (3) |
C2—C3 | 1.371 (4) | C12—C13 | 1.526 (3) |
C2—H2 | 0.9300 | C12—H12 | 1.04 (3) |
C3—C4 | 1.377 (5) | C13—O3 | 1.419 (3) |
C3—H3 | 0.9300 | C13—C16 | 1.520 (3) |
C4—C5 | 1.374 (4) | C13—H13 | 1.00 (3) |
C4—H4 | 0.9300 | C14—N1 | 1.453 (3) |
C5—C6 | 1.375 (4) | C14—H14A | 0.9600 |
C5—H5 | 0.9300 | C14—H14B | 0.9600 |
C6—H6 | 0.9300 | C14—H14C | 0.9600 |
C7—C8 | 1.357 (3) | C15—O1 | 1.205 (3) |
C7—S1 | 1.732 (2) | C15—N2 | 1.383 (3) |
C8—C9 | 1.412 (4) | C16—O2 | 1.207 (3) |
C8—H8 | 0.9300 | C16—N2 | 1.369 (3) |
C9—C10 | 1.353 (3) | C17—N2 | 1.447 (3) |
C9—H9 | 0.9300 | C17—H17A | 0.9600 |
C10—C11 | 1.487 (3) | C17—H17B | 0.9600 |
C10—S1 | 1.727 (2) | C17—H17C | 0.9600 |
C11—N1 | 1.476 (3) | N1—O3 | 1.464 (2) |
C6—C1—C2 | 117.4 (2) | C15—C12—C11 | 114.73 (17) |
C6—C1—C7 | 122.11 (19) | C13—C12—C11 | 102.00 (17) |
C2—C1—C7 | 120.5 (2) | C15—C12—H12 | 108.7 (15) |
C3—C2—C1 | 121.1 (3) | C13—C12—H12 | 113.7 (15) |
C3—C2—H2 | 119.5 | C11—C12—H12 | 112.3 (16) |
C1—C2—H2 | 119.5 | O3—C13—C16 | 111.44 (18) |
C2—C3—C4 | 120.8 (2) | O3—C13—C12 | 107.59 (17) |
C2—C3—H3 | 119.6 | C16—C13—C12 | 104.45 (18) |
C4—C3—H3 | 119.6 | O3—C13—H13 | 106.8 (16) |
C5—C4—C3 | 118.5 (3) | C16—C13—H13 | 110.9 (17) |
C5—C4—H4 | 120.7 | C12—C13—H13 | 115.7 (17) |
C3—C4—H4 | 120.7 | N1—C14—H14A | 109.5 |
C4—C5—C6 | 121.0 (3) | N1—C14—H14B | 109.5 |
C4—C5—H5 | 119.5 | H14A—C14—H14B | 109.5 |
C6—C5—H5 | 119.5 | N1—C14—H14C | 109.5 |
C5—C6—C1 | 121.2 (2) | H14A—C14—H14C | 109.5 |
C5—C6—H6 | 119.4 | H14B—C14—H14C | 109.5 |
C1—C6—H6 | 119.4 | O1—C15—N2 | 124.4 (2) |
C8—C7—C1 | 129.6 (2) | O1—C15—C12 | 127.4 (2) |
C8—C7—S1 | 109.71 (17) | N2—C15—C12 | 108.27 (18) |
C1—C7—S1 | 120.70 (16) | O2—C16—N2 | 124.9 (2) |
C7—C8—C9 | 113.79 (18) | O2—C16—C13 | 126.4 (2) |
C7—C8—H8 | 123.1 | N2—C16—C13 | 108.67 (18) |
C9—C8—H8 | 123.1 | N2—C17—H17A | 109.5 |
C10—C9—C8 | 113.7 (2) | N2—C17—H17B | 109.5 |
C10—C9—H9 | 123.2 | H17A—C17—H17B | 109.5 |
C8—C9—H9 | 123.2 | N2—C17—H17C | 109.5 |
C9—C10—C11 | 127.94 (19) | H17A—C17—H17C | 109.5 |
C9—C10—S1 | 110.08 (16) | H17B—C17—H17C | 109.5 |
C11—C10—S1 | 121.97 (13) | C14—N1—O3 | 104.71 (16) |
N1—C11—C10 | 110.73 (16) | C14—N1—C11 | 112.49 (17) |
N1—C11—C12 | 101.59 (15) | O3—N1—C11 | 101.78 (14) |
C10—C11—C12 | 118.22 (18) | C16—N2—C15 | 113.39 (19) |
N1—C11—H11 | 112.3 (13) | C16—N2—C17 | 123.7 (2) |
C10—C11—H11 | 109.5 (14) | C15—N2—C17 | 122.9 (2) |
C12—C11—H11 | 104.2 (13) | C13—O3—N1 | 104.13 (14) |
C15—C12—C13 | 105.14 (18) | C10—S1—C7 | 92.71 (10) |
C6—C1—C2—C3 | 0.0 (3) | C13—C12—C15—O1 | −177.3 (2) |
C7—C1—C2—C3 | −179.6 (2) | C11—C12—C15—O1 | 71.5 (3) |
C1—C2—C3—C4 | −0.6 (4) | C13—C12—C15—N2 | 1.9 (2) |
C2—C3—C4—C5 | 0.9 (4) | C11—C12—C15—N2 | −109.3 (2) |
C3—C4—C5—C6 | −0.6 (5) | O3—C13—C16—O2 | −65.7 (3) |
C4—C5—C6—C1 | 0.0 (4) | C12—C13—C16—O2 | 178.4 (2) |
C2—C1—C6—C5 | 0.3 (4) | O3—C13—C16—N2 | 114.50 (19) |
C7—C1—C6—C5 | 179.9 (2) | C12—C13—C16—N2 | −1.4 (2) |
C6—C1—C7—C8 | 175.0 (2) | C10—C11—N1—C14 | −76.4 (2) |
C2—C1—C7—C8 | −5.4 (3) | C12—C11—N1—C14 | 157.21 (18) |
C6—C1—C7—S1 | −5.3 (3) | C10—C11—N1—O3 | 172.10 (16) |
C2—C1—C7—S1 | 174.28 (17) | C12—C11—N1—O3 | 45.68 (17) |
C1—C7—C8—C9 | 179.4 (2) | O2—C16—N2—C15 | −177.0 (2) |
S1—C7—C8—C9 | −0.4 (3) | C13—C16—N2—C15 | 2.8 (3) |
C7—C8—C9—C10 | 1.2 (3) | O2—C16—N2—C17 | 1.5 (4) |
C8—C9—C10—C11 | 178.6 (2) | C13—C16—N2—C17 | −178.8 (2) |
C8—C9—C10—S1 | −1.4 (3) | O1—C15—N2—C16 | 176.2 (2) |
C9—C10—C11—N1 | 147.6 (2) | C12—C15—N2—C16 | −3.0 (3) |
S1—C10—C11—N1 | −32.4 (2) | O1—C15—N2—C17 | −2.2 (4) |
C9—C10—C11—C12 | −95.9 (3) | C12—C15—N2—C17 | 178.5 (2) |
S1—C10—C11—C12 | 84.2 (2) | C16—C13—O3—N1 | −86.75 (19) |
N1—C11—C12—C15 | 84.5 (2) | C12—C13—O3—N1 | 27.2 (2) |
C10—C11—C12—C15 | −36.9 (3) | C14—N1—O3—C13 | −163.37 (17) |
N1—C11—C12—C13 | −28.59 (19) | C11—N1—O3—C13 | −46.07 (19) |
C10—C11—C12—C13 | −149.94 (17) | C9—C10—S1—C7 | 1.06 (18) |
C15—C12—C13—O3 | −118.85 (18) | C11—C10—S1—C7 | −178.96 (17) |
C11—C12—C13—O3 | 1.2 (2) | C8—C7—S1—C10 | −0.40 (17) |
C15—C12—C13—C16 | −0.3 (2) | C1—C7—S1—C10 | 179.86 (16) |
C11—C12—C13—C16 | 119.74 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6···S1 | 0.93 | 2.69 | 3.100 (2) | 108 |
C8—H8···S1i | 0.93 | 3.00 | 3.887 (2) | 160 |
C14—H14B···O2i | 0.96 | 2.65 | 3.417 (4) | 137 |
C13—H13···Cg1ii | 1.00 (3) | 2.97 (3) | 3.876 (2) | 151 (2) |
Symmetry codes: (i) x+1/2, −y+1/2, z; (ii) −x, −y, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C17H16N2O3S |
Mr | 328.38 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 296 |
a, b, c (Å) | 12.7768 (7), 10.9803 (6), 11.1069 (9) |
V (Å3) | 1558.22 (17) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.22 |
Crystal size (mm) | 0.65 × 0.46 × 0.27 |
Data collection | |
Diffractometer | Stoe IPDSII diffractometer |
Absorption correction | Integration (X-RED32; Stoe & Cie, 2002) |
Tmin, Tmax | 0.889, 0.935 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6395, 3332, 2899 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.099, 1.04 |
No. of reflections | 3332 |
No. of parameters | 221 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.22, −0.22 |
Absolute structure | Flack (1983) |
Absolute structure parameter | −0.13 (8) |
Computer programs: X-AREA (Stoe & Cie, 2002), X-RED32 (Stoe & Cie, 2002), 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 |
C6—H6···S1 | 0.93 | 2.69 | 3.100 (2) | 108 |
C8—H8···S1i | 0.93 | 3.00 | 3.887 (2) | 160.4 |
C14—H14B···O2i | 0.96 | 2.65 | 3.417 (4) | 137.2 |
C13—H13···Cg1ii | 1.00 (3) | 2.97 (3) | 3.876 (2) | 151 (2) |
Symmetry codes: (i) x+1/2, −y+1/2, z; (ii) −x, −y, z−1/2. |
Acknowledgements
The authors acknowledge the Faculty of Arts and Sciences, Ondokuz Mayıs University, Turkey, for the use of the Stoe IPDSII diffractometer (purchased under grant F.279 of the University Research Fund).
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
A general principle for the synthesis of five-membered rings was introduced in 1960 as 1,3-dipolar cycloaddition and turned out to be remarkably widespread (Huisgen, 1960, 1961). Because of easy 1,3-dipolar cycloaddition reactions to alkenes, alkynes, isocyanates, isothiocyanates, phospharanes, sulphenes and sulphynl compounds; nitrones are the important intermediates in synthetic organic chemistry (Black et al., 1975). There has been an ever-increasing quest for modified nucleosides, due to their potential applications in antiviral and anticancer therapies (Richman, 2001; De Clercq, 2002; Donadas et al., 2004). In a recent approach to modified nucleosides, the furanose ring has been replaced by other heterocyclic analogs (Merino et al., 2003). Among these N and O containing heterocycles have emerged as important candidates, and have been shown to display useful anticancer and antiviral properties (Chiacchio et al., 2003; Iannazzo et al., 2002). The present work is part of a structural study of compounds of substited 2,5-dimethyl-4-(thiophen-2-yl)-tetrahydropyrrolo[3,4 -c]pyrrole-1,\3(2H,3aH)-dione systems with hydrogen-bond donors, and we report herein the crystal structure of the title compound, (I).
The overall view and atom-labelling of the molecule of (I) are displayed in Fig. 1. The thiophene ring is oriented with respect to succinimide and phenyl rings at dihedral angles of 40.03 (12)° and 5.21 (13)°, respectively. The dihedral angle between succinimide and phenyl rings is 39.38 (12)°. The isoxazole ring has envelope conformation, with N1 atom displaced by -0.672 (2) Å from the plane of the other ring atoms.
The hydrogen-bonding parameters are given in Table 1 and the packing arrangements of the molecules are illustrated in Figs. 2 and 3. Compound is stabilized by intramolecular C—H···S hydrogen bond and S···N heteroatom interactions [in C1—S1···N; S···N = 3.033 (2) Å, C1—S1···N = 142.76 (9) °], which form S(4) and S(6) motifs, and intermolecular C—H···S and C—H···O hydrogen bonds and C—H···π interactions. As shown in Fig. 2 the structure of the compound is made up of C8—H8···S1 and C14—H14B···O2 H-bonded polymeric bands of [C12H14N2O3S] molecules, which are nearly elongated along [100]. These polymeric chains are linked to each other and generate R22(14) ring motifs (Bernstein et al., 1995; Etter, 1990). The crystal packing is also stabilized by C13—H13···Cg1 interactions (Fig. 3, Table 1).