organic compounds
4-Methyl-9-[(4-methylphenyl)sulfonyl]thiopyrano[3,4-b]indole-3(9H)-thione
aUniversity Mainz, Duesbergweg 10-14, 55099 Mainz, Germany, and bLaboratoire de Chimie Moléculaire et Thio-organique, UMR 6507, ENSICAEN, 6 Boulevard Maréchal Juin, 14050 Caen, France
*Correspondence e-mail: detert@uni-mainz.de
The title compound, C19H15NO2S3, is the first example of a dithia analogue of pyrano[3,4-b]indolone. The almost planar thiopyranoindolethione ring system (r.m.s. deviation for all non-H atoms = 0.030 Å) makes a dihedral angle of 80.70 (8)° with the p-tolyl ring. In the crystal, molecules are connected via C—H⋯O hydrogen bonds into two chains along the b axis. These chains are connected via π–π interactions between symmetry-related thiopyranoindolethione ring systems [centroid–centroid distance = 3.588 (1) Å].
Related literature
The title compound was synthesized as part of a larger project focusing on metal-catalysed transformations of tethered alkynyl-ynamides to carbazoles (Witulski & Alayrac, 2002) and to carbolines and other heteroannulated indoles (Nissen, 2008; Dassonneville, 2010). The reactivity of such an annulated thiopyranothione could be similar to the respective pyrano[3,4-b]indolone, well known as stable equivalents of indoloquinodimethanes (Plieninger et al., 1964) and valuable intermediates for the synthesis of various heteroannulated indoles, see, for example: Livadiotou et al. (2009).
Experimental
Crystal data
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Refinement
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Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell CAD-4 Software; data reduction: CORINC (Dräger & Gattow, 1971); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON.
Supporting information
10.1107/S1600536810038201/bt5362sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810038201/bt5362Isup2.hkl
The title compound was prepared from 2-(propynyl)-N-ethynyl-N-[(4-methylphenyl)sulfonyl)]benzenamine (Witulski & Alayrac, 2002)) as follows: Under Argon (Ar), BINAP (15.6 mg, 0.025 mmol, 10 mol%) and [RhCl(C8H14)2]2 (6.1 mg, 0.0087 mmol, 3.5 mol%) are dissolved in degassed CH2Cl2 (3.0 ml) in a Schlenk tube, and the mixture is stirred at room temperature for 5 min. H2 is then introduced to the resulting solution. After stirring at room temperature for 0.5 h, the resulting solution is concentrated to dryness and the residue dissolved in dichloroethane (DCE) (3.0 ml). To this solution is added dropwise over 1 min a solution of the alkynyl-ynamide (0.25 mmol) and CS2 (150 µL, 2.5 mmol, 10 equiv.) in DCE (5.0 ml). Undissolved substrate is dissolved by addition of DCE (2x1.0 ml), added to the solution and the mixture is heated to 353 K. After completion of the reaction (3 h, TLC), the solvent is removed and the residue is purified by
(Al2O3, Petroleum ether/Ethyl acetate, 95/5). Violet crystals of the title compound suitable for X-ray analysis were obtained by crystallization from CH2Cl2/Petroleum ether.Hydrogen atoms were placed at calculated positions with C—H = 0.95 Å (aromatic) or 0.98 Å (methyl groups). All H atoms were refined in the riding-model approximation with isotropic displacement parameters (set at 1.2–1.5 times of the Ueq of the parent atom).
Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell
CAD-4 Software (Enraf–Nonius, 1989); data reduction: CORINC (Dräger & Gattow, 1971); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON (Spek, 2009).Fig. 1. Perspective view the title compound. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. Part of the packing diagram showing the hydrogen bonds and the π-π-interactions. |
C19H15NO2S3 | F(000) = 800 |
Mr = 385.50 | Dx = 1.526 Mg m−3 |
Monoclinic, P21/n | Cu Kα radiation, λ = 1.54178 Å |
Hall symbol: -P 2yn | Cell parameters from 25 reflections |
a = 13.2530 (4) Å | θ = 60–70° |
b = 8.2423 (3) Å | µ = 4.15 mm−1 |
c = 15.4500 (16) Å | T = 193 K |
β = 96.124 (3)° | Needle, violet |
V = 1678.05 (19) Å3 | 0.60 × 0.10 × 0.10 mm |
Z = 4 |
Enraf–Nonius CAD-4 diffractometer | 2714 reflections with I > 2σ(I) |
Radiation source: rotating anode | Rint = 0.000 |
Graphite monochromator | θmax = 69.9°, θmin = 4.2° |
ω/2θ scans | h = 0→16 |
Absorption correction: numerical (de Meulenaer & Tompa, 1965) | k = 0→10 |
Tmin = 0.42, Tmax = 0.70 | l = −18→18 |
3167 measured reflections | 3 standard reflections every 60 min |
3167 independent reflections | intensity decay: 2% |
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)] = 0.037 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.102 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.053P)2 + 0.8161P] where P = (Fo2 + 2Fc2)/3 |
3167 reflections | (Δ/σ)max < 0.001 |
228 parameters | Δρmax = 0.42 e Å−3 |
0 restraints | Δρmin = −0.36 e Å−3 |
C19H15NO2S3 | V = 1678.05 (19) Å3 |
Mr = 385.50 | Z = 4 |
Monoclinic, P21/n | Cu Kα radiation |
a = 13.2530 (4) Å | µ = 4.15 mm−1 |
b = 8.2423 (3) Å | T = 193 K |
c = 15.4500 (16) Å | 0.60 × 0.10 × 0.10 mm |
β = 96.124 (3)° |
Enraf–Nonius CAD-4 diffractometer | 2714 reflections with I > 2σ(I) |
Absorption correction: numerical (de Meulenaer & Tompa, 1965) | Rint = 0.000 |
Tmin = 0.42, Tmax = 0.70 | 3 standard reflections every 60 min |
3167 measured reflections | intensity decay: 2% |
3167 independent reflections |
R[F2 > 2σ(F2)] = 0.037 | 0 restraints |
wR(F2) = 0.102 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.42 e Å−3 |
3167 reflections | Δρmin = −0.36 e Å−3 |
228 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 | ||
N1 | 0.30393 (13) | 0.4410 (2) | 0.44134 (12) | 0.0228 (4) | |
C2 | 0.29369 (15) | 0.4317 (3) | 0.53192 (14) | 0.0230 (4) | |
C3 | 0.21571 (17) | 0.4930 (3) | 0.57513 (16) | 0.0293 (5) | |
H3 | 0.1611 | 0.5518 | 0.5451 | 0.035* | |
C4 | 0.22049 (18) | 0.4654 (3) | 0.66365 (16) | 0.0336 (5) | |
H4 | 0.1683 | 0.5064 | 0.6952 | 0.040* | |
C5 | 0.30000 (19) | 0.3790 (3) | 0.70717 (16) | 0.0346 (5) | |
H5 | 0.3005 | 0.3596 | 0.7678 | 0.042* | |
C6 | 0.37865 (18) | 0.3204 (3) | 0.66405 (15) | 0.0309 (5) | |
H6 | 0.4333 | 0.2625 | 0.6947 | 0.037* | |
C7 | 0.37639 (15) | 0.3478 (2) | 0.57428 (14) | 0.0222 (4) | |
C8 | 0.44351 (15) | 0.3017 (2) | 0.50942 (14) | 0.0211 (4) | |
C9 | 0.53663 (16) | 0.2244 (3) | 0.52013 (15) | 0.0243 (4) | |
C10 | 0.58968 (16) | 0.1801 (3) | 0.44741 (16) | 0.0263 (5) | |
S11 | 0.54433 (4) | 0.23832 (8) | 0.34297 (4) | 0.03407 (17) | |
C12 | 0.43366 (17) | 0.3397 (3) | 0.34993 (15) | 0.0303 (5) | |
H12 | 0.3984 | 0.3847 | 0.2987 | 0.036* | |
C13 | 0.39482 (15) | 0.3576 (2) | 0.42680 (14) | 0.0217 (4) | |
S14 | 0.20305 (4) | 0.46546 (6) | 0.36740 (4) | 0.02438 (15) | |
O15 | 0.15035 (12) | 0.60556 (19) | 0.39288 (12) | 0.0353 (4) | |
O16 | 0.24145 (12) | 0.4613 (2) | 0.28475 (11) | 0.0367 (4) | |
C17 | 0.12629 (15) | 0.2950 (2) | 0.37845 (13) | 0.0194 (4) | |
C18 | 0.02728 (16) | 0.3153 (3) | 0.39707 (15) | 0.0268 (5) | |
H18 | 0.0018 | 0.4205 | 0.4072 | 0.032* | |
C19 | −0.03435 (16) | 0.1799 (3) | 0.40080 (15) | 0.0276 (5) | |
H19 | −0.1023 | 0.1931 | 0.4137 | 0.033* | |
C20 | 0.00193 (16) | 0.0253 (3) | 0.38587 (14) | 0.0238 (4) | |
C21 | 0.10251 (16) | 0.0078 (3) | 0.36982 (14) | 0.0254 (5) | |
H21 | 0.1288 | −0.0977 | 0.3619 | 0.031* | |
C22 | 0.16513 (16) | 0.1414 (3) | 0.36515 (14) | 0.0252 (5) | |
H22 | 0.2335 | 0.1283 | 0.3531 | 0.030* | |
C23 | −0.06630 (18) | −0.1206 (3) | 0.38685 (16) | 0.0301 (5) | |
H23A | −0.1058 | −0.1136 | 0.4368 | 0.045* | |
H23B | −0.0250 | −0.2195 | 0.3914 | 0.045* | |
H23C | −0.1125 | −0.1236 | 0.3329 | 0.045* | |
S24 | 0.69645 (4) | 0.07193 (8) | 0.45140 (5) | 0.04028 (18) | |
C25 | 0.58643 (19) | 0.1818 (3) | 0.60888 (17) | 0.0365 (6) | |
H25A | 0.5844 | 0.2758 | 0.6475 | 0.055* | |
H25B | 0.6572 | 0.1509 | 0.6048 | 0.055* | |
H25C | 0.5503 | 0.0908 | 0.6324 | 0.055* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0188 (8) | 0.0218 (9) | 0.0278 (9) | 0.0008 (7) | 0.0021 (7) | 0.0015 (7) |
C2 | 0.0217 (10) | 0.0168 (10) | 0.0303 (11) | −0.0057 (8) | 0.0021 (8) | −0.0027 (8) |
C3 | 0.0239 (11) | 0.0226 (11) | 0.0419 (13) | −0.0002 (9) | 0.0058 (9) | −0.0042 (10) |
C4 | 0.0323 (12) | 0.0306 (13) | 0.0397 (13) | −0.0057 (10) | 0.0124 (10) | −0.0098 (10) |
C5 | 0.0410 (13) | 0.0341 (13) | 0.0299 (12) | −0.0074 (11) | 0.0089 (10) | −0.0040 (10) |
C6 | 0.0328 (12) | 0.0296 (12) | 0.0300 (11) | −0.0031 (10) | 0.0023 (9) | 0.0013 (10) |
C7 | 0.0225 (10) | 0.0144 (10) | 0.0295 (11) | −0.0048 (8) | 0.0021 (8) | −0.0003 (8) |
C8 | 0.0215 (10) | 0.0142 (9) | 0.0276 (10) | −0.0039 (8) | 0.0021 (8) | 0.0010 (8) |
C9 | 0.0207 (10) | 0.0166 (10) | 0.0354 (11) | −0.0020 (8) | 0.0014 (8) | 0.0027 (9) |
C10 | 0.0192 (10) | 0.0168 (10) | 0.0435 (13) | −0.0028 (8) | 0.0057 (9) | 0.0016 (9) |
S11 | 0.0296 (3) | 0.0377 (3) | 0.0369 (3) | 0.0052 (2) | 0.0126 (2) | 0.0018 (3) |
C12 | 0.0257 (11) | 0.0360 (13) | 0.0296 (11) | 0.0038 (10) | 0.0044 (9) | 0.0049 (10) |
C13 | 0.0185 (9) | 0.0172 (10) | 0.0293 (11) | −0.0017 (8) | 0.0020 (8) | 0.0021 (8) |
S14 | 0.0203 (3) | 0.0180 (3) | 0.0340 (3) | −0.00007 (19) | −0.0006 (2) | 0.0073 (2) |
O15 | 0.0286 (8) | 0.0155 (8) | 0.0602 (11) | 0.0028 (7) | −0.0026 (8) | 0.0043 (7) |
O16 | 0.0284 (8) | 0.0483 (11) | 0.0328 (9) | −0.0043 (8) | 0.0003 (7) | 0.0169 (8) |
C17 | 0.0197 (9) | 0.0135 (10) | 0.0245 (10) | 0.0000 (8) | 0.0005 (8) | 0.0010 (8) |
C18 | 0.0218 (10) | 0.0175 (11) | 0.0408 (12) | 0.0042 (8) | 0.0027 (9) | −0.0034 (9) |
C19 | 0.0217 (10) | 0.0225 (11) | 0.0394 (12) | 0.0003 (9) | 0.0066 (9) | −0.0045 (9) |
C20 | 0.0273 (11) | 0.0193 (11) | 0.0241 (10) | −0.0005 (9) | −0.0006 (8) | −0.0012 (8) |
C21 | 0.0295 (11) | 0.0158 (10) | 0.0305 (11) | 0.0054 (9) | 0.0008 (9) | −0.0043 (9) |
C22 | 0.0224 (10) | 0.0233 (11) | 0.0301 (11) | 0.0047 (9) | 0.0045 (8) | −0.0014 (9) |
C23 | 0.0346 (12) | 0.0206 (11) | 0.0345 (12) | −0.0052 (9) | 0.0011 (9) | −0.0017 (9) |
S24 | 0.0255 (3) | 0.0312 (3) | 0.0654 (4) | 0.0079 (2) | 0.0110 (3) | 0.0038 (3) |
C25 | 0.0316 (12) | 0.0363 (14) | 0.0401 (13) | 0.0056 (11) | −0.0034 (10) | 0.0049 (11) |
N1—C2 | 1.422 (3) | C17—C22 | 1.390 (3) |
N1—C13 | 1.425 (3) | C18—C19 | 1.388 (3) |
N1—S14 | 1.6756 (18) | C19—C20 | 1.390 (3) |
C2—C3 | 1.384 (3) | C20—C21 | 1.389 (3) |
C2—C7 | 1.398 (3) | C20—C23 | 1.505 (3) |
C3—C4 | 1.381 (3) | C21—C22 | 1.385 (3) |
C4—C5 | 1.385 (4) | C3—H3 | 0.9500 |
C5—C6 | 1.383 (3) | C4—H4 | 0.9500 |
C6—C7 | 1.403 (3) | C5—H5 | 0.9500 |
C7—C8 | 1.459 (3) | C6—H6 | 0.9500 |
C8—C9 | 1.383 (3) | C12—H12 | 0.9500 |
C8—C13 | 1.443 (3) | C18—H18 | 0.9500 |
C9—C10 | 1.435 (3) | C19—H19 | 0.9500 |
C9—C25 | 1.499 (3) | C21—H21 | 0.9500 |
C10—S24 | 1.668 (2) | C22—H22 | 0.9500 |
C10—S11 | 1.729 (2) | C23—H23A | 0.9800 |
S11—C12 | 1.702 (2) | C23—H23B | 0.9800 |
C12—C13 | 1.352 (3) | C23—H23C | 0.9800 |
S14—O16 | 1.4245 (18) | C25—H25A | 0.9800 |
S14—O15 | 1.4265 (17) | C25—H25B | 0.9800 |
S14—C17 | 1.754 (2) | C25—H25C | 0.9800 |
C17—C18 | 1.383 (3) | ||
C2—N1—C13 | 107.46 (17) | C18—C19—C20 | 121.0 (2) |
C2—N1—S14 | 121.62 (14) | C21—C20—C19 | 118.7 (2) |
C13—N1—S14 | 125.24 (15) | C21—C20—C23 | 120.5 (2) |
C3—C2—C7 | 122.9 (2) | C19—C20—C23 | 120.8 (2) |
C3—C2—N1 | 127.5 (2) | C22—C21—C20 | 121.2 (2) |
C7—C2—N1 | 109.56 (18) | C21—C22—C17 | 118.86 (19) |
C4—C3—C2 | 117.4 (2) | C2—C3—H3 | 121.00 |
C3—C4—C5 | 121.2 (2) | C4—C3—H3 | 121.00 |
C6—C5—C4 | 121.3 (2) | C3—C4—H4 | 119.00 |
C5—C6—C7 | 118.8 (2) | C5—C4—H4 | 119.00 |
C2—C7—C6 | 118.4 (2) | C4—C5—H5 | 119.00 |
C2—C7—C8 | 108.18 (18) | C6—C5—H5 | 119.00 |
C6—C7—C8 | 133.4 (2) | C5—C6—H6 | 121.00 |
C9—C8—C13 | 124.2 (2) | C7—C6—H6 | 121.00 |
C9—C8—C7 | 129.7 (2) | S11—C12—H12 | 119.00 |
C13—C8—C7 | 106.06 (17) | C13—C12—H12 | 119.00 |
C8—C9—C10 | 121.9 (2) | C17—C18—H18 | 120.00 |
C8—C9—C25 | 121.2 (2) | C19—C18—H18 | 120.00 |
C10—C9—C25 | 116.88 (19) | C18—C19—H19 | 119.00 |
C9—C10—S24 | 126.28 (18) | C20—C19—H19 | 120.00 |
C9—C10—S11 | 120.65 (16) | C20—C21—H21 | 119.00 |
S24—C10—S11 | 113.07 (13) | C22—C21—H21 | 119.00 |
C12—S11—C10 | 107.07 (11) | C17—C22—H22 | 121.00 |
C13—C12—S11 | 121.37 (18) | C21—C22—H22 | 121.00 |
C12—C13—N1 | 126.8 (2) | C20—C23—H23A | 109.00 |
C12—C13—C8 | 124.5 (2) | C20—C23—H23B | 109.00 |
N1—C13—C8 | 108.67 (18) | C20—C23—H23C | 109.00 |
O16—S14—O15 | 119.95 (11) | H23A—C23—H23B | 110.00 |
O16—S14—N1 | 105.83 (9) | H23A—C23—H23C | 109.00 |
O15—S14—N1 | 106.73 (10) | H23B—C23—H23C | 109.00 |
O16—S14—C17 | 109.53 (10) | C9—C25—H25A | 110.00 |
O15—S14—C17 | 108.39 (10) | C9—C25—H25B | 109.00 |
N1—S14—C17 | 105.43 (9) | C9—C25—H25C | 109.00 |
C18—C17—C22 | 121.02 (19) | H25A—C25—H25B | 109.00 |
C18—C17—S14 | 119.77 (16) | H25A—C25—H25C | 109.00 |
C22—C17—S14 | 119.17 (16) | H25B—C25—H25C | 109.00 |
C17—C18—C19 | 119.2 (2) | ||
C13—N1—C2—C3 | −178.6 (2) | S11—C12—C13—C8 | 3.1 (3) |
S14—N1—C2—C3 | −24.0 (3) | C2—N1—C13—C12 | −178.9 (2) |
C13—N1—C2—C7 | 1.1 (2) | S14—N1—C13—C12 | 27.6 (3) |
S14—N1—C2—C7 | 155.80 (15) | C2—N1—C13—C8 | −2.3 (2) |
C7—C2—C3—C4 | −1.5 (3) | S14—N1—C13—C8 | −155.83 (15) |
N1—C2—C3—C4 | 178.3 (2) | C9—C8—C13—C12 | 0.7 (3) |
C2—C3—C4—C5 | −0.3 (3) | C7—C8—C13—C12 | 179.3 (2) |
C3—C4—C5—C6 | 1.5 (4) | C9—C8—C13—N1 | −176.00 (19) |
C4—C5—C6—C7 | −0.9 (4) | C7—C8—C13—N1 | 2.6 (2) |
C3—C2—C7—C6 | 2.1 (3) | C2—N1—S14—O16 | −177.20 (16) |
N1—C2—C7—C6 | −177.71 (18) | C13—N1—S14—O16 | −27.17 (19) |
C3—C2—C7—C8 | −179.74 (19) | C2—N1—S14—O15 | 53.96 (18) |
N1—C2—C7—C8 | 0.5 (2) | C13—N1—S14—O15 | −156.01 (17) |
C5—C6—C7—C2 | −0.8 (3) | C2—N1—S14—C17 | −61.18 (18) |
C5—C6—C7—C8 | −178.5 (2) | C13—N1—S14—C17 | 88.86 (18) |
C2—C7—C8—C9 | 176.6 (2) | O16—S14—C17—C18 | −124.30 (18) |
C6—C7—C8—C9 | −5.6 (4) | O15—S14—C17—C18 | 8.3 (2) |
C2—C7—C8—C13 | −1.9 (2) | N1—S14—C17—C18 | 122.24 (18) |
C6—C7—C8—C13 | 176.0 (2) | O16—S14—C17—C22 | 53.38 (19) |
C13—C8—C9—C10 | −5.5 (3) | O15—S14—C17—C22 | −174.07 (17) |
C7—C8—C9—C10 | 176.3 (2) | N1—S14—C17—C22 | −60.09 (19) |
C13—C8—C9—C25 | 175.0 (2) | C22—C17—C18—C19 | −1.2 (3) |
C7—C8—C9—C25 | −3.2 (3) | S14—C17—C18—C19 | 176.40 (17) |
C8—C9—C10—S24 | −173.91 (17) | C17—C18—C19—C20 | −0.2 (3) |
C25—C9—C10—S24 | 5.6 (3) | C18—C19—C20—C21 | 2.1 (3) |
C8—C9—C10—S11 | 5.9 (3) | C18—C19—C20—C23 | −177.8 (2) |
C25—C9—C10—S11 | −174.60 (17) | C19—C20—C21—C22 | −2.5 (3) |
C9—C10—S11—C12 | −2.1 (2) | C23—C20—C21—C22 | 177.3 (2) |
S24—C10—S11—C12 | 177.70 (12) | C20—C21—C22—C17 | 1.2 (3) |
C10—S11—C12—C13 | −2.2 (2) | C18—C17—C22—C21 | 0.8 (3) |
S11—C12—C13—N1 | 179.22 (17) | S14—C17—C22—C21 | −176.89 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
C21—H21···O15i | 0.95 | 2.50 | 3.387 (3) | 155 |
C22—H22···O16ii | 0.95 | 2.59 | 3.116 (3) | 116 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1/2, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C19H15NO2S3 |
Mr | 385.50 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 193 |
a, b, c (Å) | 13.2530 (4), 8.2423 (3), 15.4500 (16) |
β (°) | 96.124 (3) |
V (Å3) | 1678.05 (19) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 4.15 |
Crystal size (mm) | 0.60 × 0.10 × 0.10 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 diffractometer |
Absorption correction | Numerical (de Meulenaer & Tompa, 1965) |
Tmin, Tmax | 0.42, 0.70 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3167, 3167, 2714 |
Rint | 0.000 |
(sin θ/λ)max (Å−1) | 0.609 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.102, 1.04 |
No. of reflections | 3167 |
No. of parameters | 228 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.42, −0.36 |
Computer programs: CAD-4 Software (Enraf–Nonius, 1989), CORINC (Dräger & Gattow, 1971), SIR97 (Altomare et al., 1999), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C21—H21···O15i | 0.95 | 2.50 | 3.387 (3) | 155 |
C22—H22···O16ii | 0.95 | 2.59 | 3.116 (3) | 116 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1/2, y−1/2, −z+1/2. |
References
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Dräger, M. & Gattow, G. (1971). Acta Chem. Scand. 25, 761–762. Google Scholar
Enraf–Nonius (1989). CAD-4 Software. Enraf–Nonius, Delft, The Netherlands. Google Scholar
Livadiotou, D., Tsoleridis, C. A. & Stephanidou-Stephanatou, J. (2009). Synthesis, 15, 2579–2583. Google Scholar
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The title compound is formed via a rhodium-catalyzed [2 + 2+2] cycloaddition of a tethered alkynyl-ynamide and carbon disulfide. This unprecedented thiopyranoindolethione is obtained as dark violet crystals. The crystal structure of the title compound forms a network built by two chains along the b axis connected via hydrogen bonds C21—H21···O15 (2.50 Å) and C22—H21···O16 (2.59 Å). These chains are connected via π-π-interactions of two thiopyranoindolethiones related by a center of symmetry [distance between centroids 3.588 (1) Å].
The tricyclic framework is essentially planar with torsion angles of about 2.1 ° or less in the benzene moiety and up to 5.9 ° in the thiopyrane unit. The torsion angle around the biphenyl bond amounts to 176.0 (2) ° (C6,C7,C8,C13). Whereas the N—C bonds in the pyrrole ring are nearly identical, the C—C bond lengths increase in the sequence C2—C7, C7—C8, C8—C13. With 1.459 (3) Å, the biphenyl bond C7—C8 is significantly longer than C2—C3 (1.384 (3) Å) and C8—C13 (1.443 (3) Å). The thiocarbonyl bond length is about 1.668 (2) Å, much shorter than the C—S single bonds with 1.729 (2) Å (C10—S11) and 1.702 (2) Å (S11—C12). Due to steric repulsion of methyl and thiocarbonyl, the S24—C10—S11 bond angle is reduced to 113.07 (13) ° and the C10—S11—C12 bond angle is only 107.07 (11) °.