organic compounds
3-(2H-1,3-Benzodioxol-5-ylmethyl)-2-(2-methoxyphenyl)-1,3-thiazolidin-4-one
aFundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos–Farmanguinhos, R. Sizenando Nabuco 100, Manguinhos, 21041-250 Rio de Janeiro, RJ, Brazil, bDepartamento de Química Orgânica, Universidade Federal de Pelotas (UFPel), Campus Universitário, s/n, Caixa Postal 354, 96010-900 Pelotas, RS, Brazil, cCHEMSOL, 1 Harcourt Road, Aberdeen AB15 5NY, Scotland, dCentro de Desenvolvimento Tecnológico em Saúde (CDTS), Fundação Oswaldo Cruz (FIOCRUZ), Casa Amarela, Campus de Manguinhos, Av. Brasil 4365, 21040-900, Rio de Janeiro, RJ, Brazil, and eDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com
The title molecule, C18H17NO4S, features a 1,3-thiazolidine ring that is twisted about the S—C(methylene) bond. With reference to this ring, the 1,3-benzodioxole and benzene rings lie to either side and form dihedral angles of 69.72 (16) and 83.60 (14)°, respectively, with the central ring. Significant twisting in the molecule is confirmed by the dihedral angle of 79.91 (13)° formed between the outer rings. Linear supramolecular chains along the a-axis direction mediated by C—H⋯O interactions feature in the crystal packing.
Related literature
For background to the biological activity of thiazolidinones, see: Cunico et al. (2008a); Solomon et al. (2007); Kavitha et al. (2006); Sharma et al. (2006); Ravichandran et al. (2009); Rao et al. (2004). For background to the synthesis, see: Cunico et al. (2008b); Rawal et al. (2008), Gomes et al. (2010), Neuenfeldt et al. (2011). For related studies on the synthesis and biological evaluation of thiazolidinones, see: Cunico et al. (2006, 2007). For a thiazolidinone structure, see: Neuenfeldt et al. (2009).
Experimental
Crystal data
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Refinement
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Data collection: COLLECT (Hooft, 1998); cell DENZO (Otwinowski & Minor, 1997) and COLLECT; data reduction: DENZO and COLLECT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536811041262/hb6438sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811041262/hb6438Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811041262/hb6438Isup3.cml
The title compound was synthesized as described in the literature (Neuenfeldt et al., 2011) and crystals were obtained from its EtOH solution.
The C-bound H atoms were geometrically placed (C—H = 0.95–1.00 Å) and refined as riding with Uiso(H) = 1.2Ueq(C).
Data collection: COLLECT (Hooft, 1998); cell
DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998); data reduction: DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C18H17NO4S | F(000) = 720 |
Mr = 343.39 | Dx = 1.439 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 7149 reflections |
a = 6.8137 (3) Å | θ = 2.9–27.5° |
b = 12.5753 (7) Å | µ = 0.23 mm−1 |
c = 18.5071 (9) Å | T = 120 K |
β = 91.825 (3)° | Block, colourless |
V = 1584.96 (14) Å3 | 0.16 × 0.06 × 0.05 mm |
Z = 4 |
Bruker–Nonius APEXII CCD camera on κ-goniostat diffractometer | 3625 independent reflections |
Radiation source: Bruker–Nonius FR591 rotating anode | 1935 reflections with I > 2σ(I) |
10cm confocal mirrors monochromator | Rint = 0.159 |
Detector resolution: 9.091 pixels mm-1 | θmax = 27.5°, θmin = 3.2° |
ϕ and ω scans | h = −8→8 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2007) | k = −15→16 |
Tmin = 0.553, Tmax = 0.746 | l = −23→24 |
21683 measured reflections |
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)] = 0.068 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.180 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0754P)2] where P = (Fo2 + 2Fc2)/3 |
3625 reflections | (Δ/σ)max < 0.001 |
218 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.43 e Å−3 |
C18H17NO4S | V = 1584.96 (14) Å3 |
Mr = 343.39 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 6.8137 (3) Å | µ = 0.23 mm−1 |
b = 12.5753 (7) Å | T = 120 K |
c = 18.5071 (9) Å | 0.16 × 0.06 × 0.05 mm |
β = 91.825 (3)° |
Bruker–Nonius APEXII CCD camera on κ-goniostat diffractometer | 3625 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2007) | 1935 reflections with I > 2σ(I) |
Tmin = 0.553, Tmax = 0.746 | Rint = 0.159 |
21683 measured reflections |
R[F2 > 2σ(F2)] = 0.068 | 0 restraints |
wR(F2) = 0.180 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.33 e Å−3 |
3625 reflections | Δρmin = −0.43 e Å−3 |
218 parameters |
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 | 0.48794 (13) | 0.72256 (9) | 0.17227 (5) | 0.0365 (3) | |
O1 | 0.3856 (3) | 0.60647 (19) | −0.01787 (12) | 0.0321 (6) | |
O2 | 0.9136 (3) | 0.76552 (19) | 0.24212 (12) | 0.0291 (6) | |
O3 | 1.2380 (3) | 0.9163 (2) | −0.11437 (14) | 0.0358 (6) | |
O4 | 1.0102 (3) | 1.05303 (19) | −0.11655 (13) | 0.0328 (6) | |
N1 | 0.6500 (4) | 0.6556 (2) | 0.05355 (13) | 0.0231 (6) | |
C1 | 0.7138 (4) | 0.6948 (3) | 0.12420 (17) | 0.0246 (8) | |
H1 | 0.7849 | 0.7635 | 0.1174 | 0.029* | |
C2 | 0.4558 (5) | 0.6343 (3) | 0.04091 (18) | 0.0260 (8) | |
C3 | 0.3391 (5) | 0.6492 (3) | 0.10759 (19) | 0.0358 (9) | |
H3A | 0.3034 | 0.5792 | 0.1279 | 0.043* | |
H3B | 0.2167 | 0.6888 | 0.0957 | 0.043* | |
C4 | 0.8488 (4) | 0.6199 (3) | 0.16581 (17) | 0.0239 (8) | |
C5 | 0.9521 (4) | 0.6609 (3) | 0.22695 (17) | 0.0236 (8) | |
C6 | 1.0804 (5) | 0.5969 (3) | 0.26668 (18) | 0.0278 (8) | |
H6 | 1.1525 | 0.6253 | 0.3070 | 0.033* | |
C7 | 1.1036 (5) | 0.4905 (3) | 0.24740 (18) | 0.0300 (9) | |
H7 | 1.1917 | 0.4465 | 0.2747 | 0.036* | |
C8 | 0.9991 (5) | 0.4487 (3) | 0.18869 (18) | 0.0289 (8) | |
H8 | 1.0127 | 0.3757 | 0.1765 | 0.035* | |
C9 | 0.8740 (5) | 0.5139 (3) | 0.14744 (17) | 0.0260 (8) | |
H9 | 0.8053 | 0.4856 | 0.1063 | 0.031* | |
C10 | 0.9967 (5) | 0.8064 (3) | 0.30861 (18) | 0.0321 (9) | |
H10A | 0.9499 | 0.7642 | 0.3491 | 0.048* | |
H10B | 0.9568 | 0.8807 | 0.3145 | 0.048* | |
H10C | 1.1402 | 0.8022 | 0.3077 | 0.048* | |
C11 | 0.7881 (5) | 0.6555 (3) | −0.00479 (17) | 0.0281 (8) | |
H11A | 0.7309 | 0.6146 | −0.0460 | 0.034* | |
H11B | 0.9099 | 0.6188 | 0.0119 | 0.034* | |
C12 | 0.8399 (5) | 0.7660 (3) | −0.03050 (16) | 0.0254 (8) | |
C13 | 1.0282 (5) | 0.7820 (3) | −0.05777 (17) | 0.0245 (8) | |
H13 | 1.1244 | 0.7273 | −0.0570 | 0.029* | |
C14 | 1.0652 (4) | 0.8808 (3) | −0.08553 (18) | 0.0264 (8) | |
C15 | 1.1839 (5) | 1.0137 (3) | −0.1505 (2) | 0.0372 (9) | |
H15A | 1.1562 | 1.0004 | −0.2026 | 0.045* | |
H15B | 1.2917 | 1.0662 | −0.1456 | 0.045* | |
C16 | 0.9303 (5) | 0.9626 (3) | −0.08612 (18) | 0.0285 (8) | |
C17 | 0.7480 (5) | 0.9499 (3) | −0.05749 (17) | 0.0280 (8) | |
H17 | 0.6563 | 1.0068 | −0.0562 | 0.034* | |
C18 | 0.7038 (5) | 0.8489 (3) | −0.03018 (17) | 0.0260 (8) | |
H18 | 0.5781 | 0.8366 | −0.0110 | 0.031* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0270 (5) | 0.0496 (7) | 0.0329 (5) | 0.0028 (4) | 0.0009 (4) | −0.0113 (5) |
O1 | 0.0314 (13) | 0.0343 (16) | 0.0300 (14) | 0.0017 (11) | −0.0083 (11) | −0.0041 (12) |
O2 | 0.0332 (13) | 0.0292 (15) | 0.0245 (13) | 0.0021 (11) | −0.0070 (10) | −0.0028 (11) |
O3 | 0.0291 (13) | 0.0316 (16) | 0.0472 (16) | 0.0008 (11) | 0.0082 (11) | 0.0041 (12) |
O4 | 0.0329 (14) | 0.0290 (15) | 0.0367 (14) | −0.0010 (11) | 0.0049 (11) | 0.0016 (12) |
N1 | 0.0231 (14) | 0.0276 (17) | 0.0183 (13) | −0.0027 (12) | −0.0017 (11) | −0.0009 (12) |
C1 | 0.0246 (17) | 0.026 (2) | 0.0232 (17) | −0.0041 (14) | −0.0026 (14) | −0.0039 (15) |
C2 | 0.0269 (17) | 0.023 (2) | 0.0279 (19) | −0.0020 (14) | −0.0041 (15) | 0.0032 (16) |
C3 | 0.0270 (18) | 0.050 (3) | 0.0305 (19) | −0.0054 (17) | 0.0024 (15) | −0.0001 (18) |
C4 | 0.0199 (16) | 0.030 (2) | 0.0223 (17) | −0.0005 (14) | 0.0019 (13) | 0.0035 (15) |
C5 | 0.0213 (16) | 0.028 (2) | 0.0218 (17) | −0.0039 (14) | 0.0000 (13) | −0.0007 (15) |
C6 | 0.0255 (17) | 0.035 (2) | 0.0225 (18) | −0.0062 (16) | −0.0016 (14) | 0.0015 (16) |
C7 | 0.0307 (19) | 0.029 (2) | 0.030 (2) | 0.0074 (16) | 0.0020 (16) | 0.0040 (17) |
C8 | 0.0306 (19) | 0.027 (2) | 0.0294 (19) | −0.0010 (15) | 0.0006 (15) | −0.0041 (16) |
C9 | 0.0280 (18) | 0.029 (2) | 0.0207 (17) | −0.0037 (15) | −0.0012 (14) | 0.0010 (15) |
C10 | 0.037 (2) | 0.031 (2) | 0.0284 (19) | −0.0037 (17) | −0.0062 (15) | −0.0091 (17) |
C11 | 0.0308 (18) | 0.031 (2) | 0.0220 (17) | 0.0019 (16) | 0.0018 (14) | −0.0015 (16) |
C12 | 0.0283 (18) | 0.031 (2) | 0.0164 (17) | −0.0006 (15) | −0.0049 (14) | −0.0026 (15) |
C13 | 0.0251 (17) | 0.024 (2) | 0.0239 (17) | 0.0047 (14) | −0.0016 (14) | 0.0000 (15) |
C14 | 0.0231 (17) | 0.031 (2) | 0.0250 (18) | −0.0010 (15) | −0.0005 (14) | −0.0027 (16) |
C15 | 0.036 (2) | 0.032 (2) | 0.044 (2) | 0.0046 (17) | 0.0117 (18) | 0.0017 (18) |
C16 | 0.0322 (19) | 0.029 (2) | 0.0240 (18) | −0.0043 (16) | −0.0032 (15) | 0.0000 (16) |
C17 | 0.0296 (19) | 0.030 (2) | 0.0239 (18) | 0.0047 (15) | −0.0020 (15) | −0.0021 (16) |
C18 | 0.0225 (16) | 0.030 (2) | 0.0256 (17) | −0.0013 (15) | −0.0020 (14) | 0.0000 (16) |
S1—C3 | 1.799 (4) | C7—C8 | 1.384 (5) |
S1—C1 | 1.836 (3) | C7—H7 | 0.9500 |
O1—C2 | 1.225 (4) | C8—C9 | 1.393 (5) |
O2—C5 | 1.372 (4) | C8—H8 | 0.9500 |
O2—C10 | 1.433 (4) | C9—H9 | 0.9500 |
O3—C14 | 1.382 (4) | C10—H10A | 0.9800 |
O3—C15 | 1.437 (4) | C10—H10B | 0.9800 |
O4—C16 | 1.388 (4) | C10—H10C | 0.9800 |
O4—C15 | 1.445 (4) | C11—C12 | 1.514 (5) |
N1—C2 | 1.363 (4) | C11—H11A | 0.9900 |
N1—C1 | 1.451 (4) | C11—H11B | 0.9900 |
N1—C11 | 1.455 (4) | C12—C18 | 1.395 (5) |
C1—C4 | 1.510 (5) | C12—C13 | 1.408 (5) |
C1—H1 | 1.0000 | C13—C14 | 1.372 (5) |
C2—C3 | 1.501 (5) | C13—H13 | 0.9500 |
C3—H3A | 0.9900 | C14—C16 | 1.379 (5) |
C3—H3B | 0.9900 | C15—H15A | 0.9900 |
C4—C9 | 1.387 (5) | C15—H15B | 0.9900 |
C4—C5 | 1.411 (4) | C16—C17 | 1.375 (5) |
C5—C6 | 1.382 (5) | C17—C18 | 1.404 (5) |
C6—C7 | 1.395 (5) | C17—H17 | 0.9500 |
C6—H6 | 0.9500 | C18—H18 | 0.9500 |
C3—S1—C1 | 92.50 (15) | C4—C9—H9 | 119.7 |
C5—O2—C10 | 116.5 (3) | C8—C9—H9 | 119.7 |
C14—O3—C15 | 104.2 (2) | O2—C10—H10A | 109.5 |
C16—O4—C15 | 103.5 (3) | O2—C10—H10B | 109.5 |
C2—N1—C1 | 118.9 (3) | H10A—C10—H10B | 109.5 |
C2—N1—C11 | 121.3 (3) | O2—C10—H10C | 109.5 |
C1—N1—C11 | 119.1 (3) | H10A—C10—H10C | 109.5 |
N1—C1—C4 | 114.1 (3) | H10B—C10—H10C | 109.5 |
N1—C1—S1 | 105.6 (2) | N1—C11—C12 | 113.3 (3) |
C4—C1—S1 | 112.2 (2) | N1—C11—H11A | 108.9 |
N1—C1—H1 | 108.2 | C12—C11—H11A | 108.9 |
C4—C1—H1 | 108.2 | N1—C11—H11B | 108.9 |
S1—C1—H1 | 108.2 | C12—C11—H11B | 108.9 |
O1—C2—N1 | 123.9 (3) | H11A—C11—H11B | 107.7 |
O1—C2—C3 | 124.3 (3) | C18—C12—C13 | 120.5 (3) |
N1—C2—C3 | 111.8 (3) | C18—C12—C11 | 121.5 (3) |
C2—C3—S1 | 108.0 (2) | C13—C12—C11 | 117.9 (3) |
C2—C3—H3A | 110.1 | C14—C13—C12 | 116.4 (3) |
S1—C3—H3A | 110.1 | C14—C13—H13 | 121.8 |
C2—C3—H3B | 110.1 | C12—C13—H13 | 121.8 |
S1—C3—H3B | 110.1 | C13—C14—C16 | 123.2 (3) |
H3A—C3—H3B | 108.4 | C13—C14—O3 | 127.3 (3) |
C9—C4—C5 | 119.0 (3) | C16—C14—O3 | 109.4 (3) |
C9—C4—C1 | 123.5 (3) | O3—C15—O4 | 106.9 (3) |
C5—C4—C1 | 117.5 (3) | O3—C15—H15A | 110.3 |
O2—C5—C6 | 124.8 (3) | O4—C15—H15A | 110.3 |
O2—C5—C4 | 114.9 (3) | O3—C15—H15B | 110.3 |
C6—C5—C4 | 120.3 (3) | O4—C15—H15B | 110.3 |
C5—C6—C7 | 119.8 (3) | H15A—C15—H15B | 108.6 |
C5—C6—H6 | 120.1 | C17—C16—C14 | 121.4 (3) |
C7—C6—H6 | 120.1 | C17—C16—O4 | 128.5 (3) |
C8—C7—C6 | 120.4 (3) | C14—C16—O4 | 110.1 (3) |
C8—C7—H7 | 119.8 | C16—C17—C18 | 116.8 (3) |
C6—C7—H7 | 119.8 | C16—C17—H17 | 121.6 |
C7—C8—C9 | 119.8 (3) | C18—C17—H17 | 121.6 |
C7—C8—H8 | 120.1 | C12—C18—C17 | 121.7 (3) |
C9—C8—H8 | 120.1 | C12—C18—H18 | 119.2 |
C4—C9—C8 | 120.7 (3) | C17—C18—H18 | 119.2 |
C2—N1—C1—C4 | 115.2 (3) | C5—C4—C9—C8 | 0.1 (5) |
C11—N1—C1—C4 | −74.1 (4) | C1—C4—C9—C8 | −179.2 (3) |
C2—N1—C1—S1 | −8.5 (4) | C7—C8—C9—C4 | −1.8 (5) |
C11—N1—C1—S1 | 162.2 (2) | C2—N1—C11—C12 | 101.4 (4) |
C3—S1—C1—N1 | 14.3 (2) | C1—N1—C11—C12 | −69.0 (4) |
C3—S1—C1—C4 | −110.5 (3) | N1—C11—C12—C18 | −33.1 (4) |
C1—N1—C2—O1 | 175.9 (3) | N1—C11—C12—C13 | 149.5 (3) |
C11—N1—C2—O1 | 5.4 (5) | C18—C12—C13—C14 | −2.1 (5) |
C1—N1—C2—C3 | −4.0 (4) | C11—C12—C13—C14 | 175.3 (3) |
C11—N1—C2—C3 | −174.5 (3) | C12—C13—C14—C16 | 1.4 (5) |
O1—C2—C3—S1 | −165.0 (3) | C12—C13—C14—O3 | 179.1 (3) |
N1—C2—C3—S1 | 14.9 (4) | C15—O3—C14—C13 | 166.6 (3) |
C1—S1—C3—C2 | −16.7 (3) | C15—O3—C14—C16 | −15.4 (4) |
N1—C1—C4—C9 | −14.6 (4) | C14—O3—C15—O4 | 23.8 (4) |
S1—C1—C4—C9 | 105.4 (3) | C16—O4—C15—O3 | −23.0 (3) |
N1—C1—C4—C5 | 166.0 (3) | C13—C14—C16—C17 | 0.9 (5) |
S1—C1—C4—C5 | −73.9 (3) | O3—C14—C16—C17 | −177.2 (3) |
C10—O2—C5—C6 | −7.3 (4) | C13—C14—C16—O4 | 179.2 (3) |
C10—O2—C5—C4 | 172.6 (3) | O3—C14—C16—O4 | 1.1 (4) |
C9—C4—C5—O2 | −178.2 (3) | C15—O4—C16—C17 | −168.2 (3) |
C1—C4—C5—O2 | 1.2 (4) | C15—O4—C16—C14 | 13.7 (4) |
C9—C4—C5—C6 | 1.7 (4) | C14—C16—C17—C18 | −2.3 (5) |
C1—C4—C5—C6 | −179.0 (3) | O4—C16—C17—C18 | 179.8 (3) |
O2—C5—C6—C7 | 178.1 (3) | C13—C12—C18—C17 | 0.8 (5) |
C4—C5—C6—C7 | −1.8 (5) | C11—C12—C18—C17 | −176.6 (3) |
C5—C6—C7—C8 | 0.0 (5) | C16—C17—C18—C12 | 1.5 (5) |
C6—C7—C8—C9 | 1.7 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9···O1i | 0.95 | 2.36 | 3.302 (4) | 170 |
C13—H13···O1ii | 0.95 | 2.43 | 3.352 (4) | 163 |
Symmetry codes: (i) −x+1, −y+1, −z; (ii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C18H17NO4S |
Mr | 343.39 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 120 |
a, b, c (Å) | 6.8137 (3), 12.5753 (7), 18.5071 (9) |
β (°) | 91.825 (3) |
V (Å3) | 1584.96 (14) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.23 |
Crystal size (mm) | 0.16 × 0.06 × 0.05 |
Data collection | |
Diffractometer | Bruker–Nonius APEXII CCD camera on κ-goniostat diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2007) |
Tmin, Tmax | 0.553, 0.746 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21683, 3625, 1935 |
Rint | 0.159 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.068, 0.180, 1.02 |
No. of reflections | 3625 |
No. of parameters | 218 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.33, −0.43 |
Computer programs: , DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9···O1i | 0.95 | 2.36 | 3.302 (4) | 170 |
C13—H13···O1ii | 0.95 | 2.43 | 3.352 (4) | 163 |
Symmetry codes: (i) −x+1, −y+1, −z; (ii) x+1, y, z. |
Footnotes
‡Additional correspondence author, e-mail: j.wardell@abdn.ac.uk.
Acknowledgements
The use of the EPSRC X-ray crystallographic service at the University of Southampton, England, and the valuable assistance of the staff there is gratefully acknowledged. JLW acknowledges support from CAPES and FAPEMIG (Brazil).
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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.
Thiazolidinones constitute an important group of heterocyclic compounds (Cunico et al., 2008a), having valuable biological uses, for example, as anti-malarial (Solomon et al., 2007), anti-microbial (Kavitha et al., 2006), anti-inflammatory (Sharma et al., 2006), and anti-viral agents, especially as anti-HIV agents (Ravichandran et al., 2009; Rao et al., 2004). The main synthetic routes to 1,3-thiazolidin-4-ones involve three components (an aldehyde, an amine and mercaptoacetic acid), either in a one- or two-step process (Cunico et al., 2008a; Rawal et al., 2008), and also under ultrasound irradiation (Neuenfeldt et al., 2011). The structure of 1-thia-4-azaspiro[4.5]decan-3-one has been reported recently (Neuenfeldt et al., 2009). In continuation of our research on thiazolidinones, (Cunico et al., 2006; Cunico et al., 2007; Cunico et al., 2008b; Gomes et al., 2010; Neuenfeldt et al., 2011), we now wish to report the structure of 2-(2-methoxybenzaldehyde)-3-piperonyl-1,3-thiazolidin-4-one, (I), synthesized, as reported from piperonylamine, 2-methoxybenzaldehyde and mercaptoacetic acid under ultrasound irradiation (Neuenfeldt et al., 2011). The sample used in the structure determination was grown from its EtOH solution.
The thiazolidinyl ring in (I), Fig. 1, is twisted about the S1—C3 bond but, the deviations from co-planarity for the five atoms are not great, i.e. the maximum and minimum deviations are 0.109 (1) Å for atom S1 and -0.117 (4) Å for atom C3; the ketone-O1 atom lies 0.244 (2) Å out of the least-squares plane through the five-membered ring. The dioxole ring has an envelope conformation with the C15 atom being the flap atom. The r.m.s. deviation for the 13 non-hydrogen atoms comprising the 1,3-benzodioxole ring is 0.110 Å. With reference to the thiazolidinyl ring, the 1,3-benzodioxole and benzene rings lie to either side and form dihedral angles with this ring of 69.72 (16) and 83.60 (14)°, respectively. The outer rings form a dihedral angle of 79.91 (13)° with each other, indicating that the molecule is highly twisted.
The most prominent feature of the crystal packing is the formation of C—H···O interactions involving the bifurcated carbonyl-O1 atom, Table 1. These lead to linear supramolecular chains along the a axis, Fig. 2.