organic compounds
2-(2,4-Diphenyl-3-azabicyclo[3.3.1]nonan-9-ylidenehydrazono)-1,3-thiazolidin-4-one
aDepartment of Chemistry, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India
*Correspondence e-mail: chemkabilan@rediffmail.com
In the title compound, C23H24N4OS, the piperidine and cyclohexane rings adopt twin chair conformations and the phenyl groups occupy equatorial positions. The dihedral angle between the two benzene rings is 10.25 (12)°. The is stabilized by intermolecular N—H⋯O hydrogen bonds with the formation of centrosymmetric dimers.
Related literature
For background on the thiazolidinone system, see: Laurent et al. (2004). For the biological activities of thiazolidinones, see: Shih & Ke (2004), For bicyclic compounds, see: Jeyaraman & Avila, (1981). For ring see: Cremer & Pople, (1975).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536809005339/rk2127sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809005339/rk2127Isup2.hkl
To the boiling solution of the bicyclic thiosemicarbazone (0.01 mol) in ethanolic–chloroform (1:1 / v:v), ethylbromoacetate (0.01 mol), sodium acetate trihydrate (0.02 mol) and acetic acid few drops were added and refluxed for about 5–6 h. After the completion of reaction, excess of solvent was removed under reduced pressure and poured into water. After usual work–up, the solid was separated and purified by δ p.p.m.), DMSO–d6: 4.39 (s, 1H, H2a); 4.26 (s, 1H, H4a); 3.56 (s, 1H, H5e); 2.57 (s, 1H, H1e); 3.74 (s, 2H, S—CH2); 2.82 (m, 1H, H7a); 1.44 (m, 5H, H6e, H8e, H7e, H6a and H8a); 2.09 (s, 1H, NH at 3); 11.60 (bs, 1H, NH exchangeable); 7.25–7.60 & 7.80 (m, 10H aryl protons): 13C NMR (δ p.p.m.) DMSO–d6: 64.94 (C2); 63.57 (C4); 45.91 (C1); 39.88 (C5); 28.65 (C8); 27.28 (C6); 21.37 (C7); 32.92 (S—CH2); 173.98 (Cδb O); 163.00 (Cδb N) 142.54 (C2' & C4'); 128.16, 127.02, 126.95, 126.83, 126.77 (other aryl carbons).
using benzene–ethyl acetate (9:1 / v:v) as on neutral alumina. Colourless crystals were grown by slow evaporation method using ethanol as solvent. 1H NMR (The H–atoms were bonded with C atoms were placed in calculated positions and were refined using a riding model, with aromatic C—H = 0.93 Å, methine C—H = 0.98 Å, methylene C—H = 0.97 Å. The displacement parameters were set for these H atoms as Uiso(H) = 1.2Ueq(C). The other H atoms were found from difference Fourier map and were refined isopropically.
Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C23H24N4OS | F(000) = 856 |
Mr = 404.53 | Dx = 1.311 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 4403 reflections |
a = 8.3183 (3) Å | θ = 3.9–24.7° |
b = 10.8435 (4) Å | µ = 0.18 mm−1 |
c = 22.7417 (8) Å | T = 293 K |
β = 92.483 (2)° | Block, colourless |
V = 2049.36 (13) Å3 | 0.25 × 0.20 × 0.15 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 7820 independent reflections |
Radiation source: Fine-focus sealed tube | 4068 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.053 |
ϕ and ω scans | θmax = 33.2°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Bruker 1999) | h = −12→12 |
Tmin = 0.956, Tmax = 0.974 | k = −16→16 |
31153 measured reflections | l = −34→34 |
Refinement on F2 | Primary atom site location: Direct |
Least-squares matrix: Full | Secondary atom site location: Difmap |
R[F2 > 2σ(F2)] = 0.062 | Hydrogen site location: Geom |
wR(F2) = 0.203 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | w = 1/[σ2(Fo2) + (0.1023P)2] where P = (Fo2 + 2Fc2)/3 |
7820 reflections | (Δ/σ)max = 0.001 |
270 parameters | Δρmax = 0.42 e Å−3 |
0 restraints | Δρmin = −0.33 e Å−3 |
C23H24N4OS | V = 2049.36 (13) Å3 |
Mr = 404.53 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.3183 (3) Å | µ = 0.18 mm−1 |
b = 10.8435 (4) Å | T = 293 K |
c = 22.7417 (8) Å | 0.25 × 0.20 × 0.15 mm |
β = 92.483 (2)° |
Bruker APEXII CCD diffractometer | 7820 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker 1999) | 4068 reflections with I > 2σ(I) |
Tmin = 0.956, Tmax = 0.974 | Rint = 0.053 |
31153 measured reflections |
R[F2 > 2σ(F2)] = 0.062 | 0 restraints |
wR(F2) = 0.203 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.42 e Å−3 |
7820 reflections | Δρmin = −0.33 e Å−3 |
270 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 > \ s(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 | 0.6862 (2) | 0.50259 (17) | 0.44666 (8) | 0.0387 (4) | |
C2 | 0.8215 (2) | 0.52229 (19) | 0.40590 (9) | 0.0463 (5) | |
H2A | 0.7801 | 0.5554 | 0.3686 | 0.056* | |
H2B | 0.8749 | 0.4447 | 0.3985 | 0.056* | |
C3 | 0.8430 (2) | 0.64074 (17) | 0.50239 (8) | 0.0377 (4) | |
C4 | 1.0586 (2) | 0.83875 (17) | 0.58582 (8) | 0.0400 (4) | |
C5 | 1.2108 (2) | 0.91183 (18) | 0.58360 (9) | 0.0439 (4) | |
H5 | 1.2548 | 0.9015 | 0.5446 | 0.053* | |
C6 | 1.3309 (3) | 0.8579 (2) | 0.62995 (11) | 0.0559 (6) | |
H6A | 1.3594 | 0.7749 | 0.6182 | 0.067* | |
H6B | 1.4283 | 0.9072 | 0.6310 | 0.067* | |
C7 | 1.2677 (3) | 0.8535 (2) | 0.69020 (11) | 0.0627 (7) | |
H7A | 1.2672 | 0.9363 | 0.7063 | 0.075* | |
H7B | 1.3395 | 0.8038 | 0.7152 | 0.075* | |
C8 | 1.0981 (3) | 0.8002 (2) | 0.69143 (10) | 0.0556 (5) | |
H8A | 1.0554 | 0.8166 | 0.7297 | 0.067* | |
H8B | 1.1041 | 0.7114 | 0.6867 | 0.067* | |
C9 | 0.9813 (2) | 0.85244 (18) | 0.64362 (8) | 0.0430 (4) | |
H9 | 0.8818 | 0.8039 | 0.6428 | 0.052* | |
C10 | 1.1700 (2) | 1.04873 (17) | 0.59233 (8) | 0.0421 (4) | |
H10 | 1.1015 | 1.0760 | 0.5587 | 0.050* | |
C11 | 1.3226 (2) | 1.12617 (17) | 0.59453 (9) | 0.0442 (4) | |
C12 | 1.4047 (3) | 1.1425 (2) | 0.54321 (11) | 0.0620 (6) | |
H12 | 1.3648 | 1.1083 | 0.5080 | 0.074* | |
C13 | 1.5469 (3) | 1.2102 (2) | 0.54460 (14) | 0.0733 (8) | |
H13 | 1.6015 | 1.2207 | 0.5101 | 0.088* | |
C14 | 1.6069 (3) | 1.2609 (3) | 0.59510 (15) | 0.0796 (9) | |
H14 | 1.7020 | 1.3061 | 0.5954 | 0.095* | |
C15 | 1.5281 (3) | 1.2454 (3) | 0.64502 (14) | 0.0804 (8) | |
H15 | 1.5691 | 1.2807 | 0.6798 | 0.096* | |
C16 | 1.3867 (3) | 1.1777 (2) | 0.64548 (11) | 0.0612 (6) | |
H16 | 1.3349 | 1.1671 | 0.6806 | 0.073* | |
C17 | 0.9389 (2) | 0.98974 (18) | 0.65116 (8) | 0.0420 (4) | |
H17 | 0.8608 | 1.0127 | 0.6196 | 0.050* | |
C18 | 0.8625 (2) | 1.01140 (19) | 0.70932 (9) | 0.0433 (4) | |
C19 | 0.7131 (3) | 0.9629 (3) | 0.71957 (12) | 0.0766 (9) | |
H19 | 0.6586 | 0.9191 | 0.6897 | 0.092* | |
C20 | 0.6425 (3) | 0.9775 (3) | 0.77257 (13) | 0.0835 (9) | |
H20 | 0.5424 | 0.9423 | 0.7783 | 0.100* | |
C21 | 0.7169 (3) | 1.0423 (2) | 0.81652 (11) | 0.0594 (6) | |
H21 | 0.6675 | 1.0544 | 0.8520 | 0.071* | |
C22 | 0.8654 (3) | 1.0897 (2) | 0.80792 (10) | 0.0584 (6) | |
H22 | 0.9184 | 1.1337 | 0.8381 | 0.070* | |
C23 | 0.9384 (3) | 1.0737 (2) | 0.75539 (9) | 0.0534 (5) | |
H23 | 1.0410 | 1.1055 | 0.7509 | 0.064* | |
N1 | 1.08146 (19) | 1.06644 (15) | 0.64602 (7) | 0.0421 (4) | |
N2 | 1.01593 (19) | 0.77332 (15) | 0.54109 (7) | 0.0433 (4) | |
N3 | 0.87175 (19) | 0.70686 (16) | 0.54817 (7) | 0.0456 (4) | |
N4 | 0.70888 (19) | 0.56801 (14) | 0.49729 (7) | 0.0403 (4) | |
O1 | 0.57154 (16) | 0.43634 (14) | 0.43526 (6) | 0.0525 (4) | |
S1 | 0.96100 (5) | 0.62925 (5) | 0.44083 (2) | 0.04262 (15) | |
H1A | 1.049 (3) | 1.149 (2) | 0.6472 (10) | 0.060 (7)* | |
H4A | 0.635 (3) | 0.569 (2) | 0.5206 (11) | 0.062 (7)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0368 (8) | 0.0358 (9) | 0.0432 (10) | −0.0020 (7) | −0.0019 (7) | −0.0086 (8) |
C2 | 0.0459 (10) | 0.0462 (11) | 0.0470 (11) | −0.0060 (9) | 0.0046 (8) | −0.0151 (9) |
C3 | 0.0384 (8) | 0.0344 (9) | 0.0400 (10) | −0.0012 (7) | −0.0040 (7) | −0.0051 (7) |
C4 | 0.0427 (9) | 0.0348 (9) | 0.0418 (10) | −0.0007 (7) | −0.0065 (8) | −0.0070 (8) |
C5 | 0.0460 (10) | 0.0370 (10) | 0.0485 (11) | −0.0033 (8) | −0.0007 (8) | −0.0112 (8) |
C6 | 0.0490 (11) | 0.0369 (11) | 0.0804 (16) | 0.0033 (9) | −0.0145 (11) | −0.0086 (10) |
C7 | 0.0733 (15) | 0.0435 (12) | 0.0682 (15) | 0.0093 (11) | −0.0331 (13) | −0.0022 (10) |
C8 | 0.0817 (15) | 0.0359 (11) | 0.0484 (12) | 0.0033 (10) | −0.0067 (11) | −0.0013 (9) |
C9 | 0.0486 (10) | 0.0375 (10) | 0.0425 (10) | −0.0076 (8) | −0.0023 (8) | −0.0073 (8) |
C10 | 0.0488 (10) | 0.0380 (10) | 0.0392 (10) | 0.0028 (8) | 0.0005 (8) | −0.0013 (8) |
C11 | 0.0522 (10) | 0.0300 (9) | 0.0508 (11) | 0.0024 (8) | 0.0074 (9) | 0.0009 (8) |
C12 | 0.0833 (16) | 0.0441 (12) | 0.0604 (14) | 0.0053 (11) | 0.0242 (12) | 0.0023 (10) |
C13 | 0.0814 (17) | 0.0487 (14) | 0.093 (2) | 0.0055 (13) | 0.0471 (16) | 0.0057 (14) |
C14 | 0.0651 (15) | 0.0590 (16) | 0.117 (3) | −0.0164 (13) | 0.0349 (16) | −0.0108 (16) |
C15 | 0.0707 (15) | 0.0826 (19) | 0.089 (2) | −0.0358 (14) | 0.0130 (14) | −0.0197 (16) |
C16 | 0.0637 (13) | 0.0619 (14) | 0.0589 (14) | −0.0231 (11) | 0.0139 (11) | −0.0126 (12) |
C17 | 0.0425 (9) | 0.0408 (10) | 0.0420 (10) | −0.0008 (8) | −0.0049 (8) | −0.0053 (8) |
C18 | 0.0391 (9) | 0.0439 (11) | 0.0464 (11) | 0.0021 (8) | −0.0045 (8) | −0.0072 (8) |
C19 | 0.0392 (11) | 0.120 (2) | 0.0705 (16) | −0.0151 (13) | 0.0006 (11) | −0.0420 (16) |
C20 | 0.0465 (12) | 0.121 (3) | 0.0839 (19) | −0.0169 (15) | 0.0155 (12) | −0.0345 (18) |
C21 | 0.0557 (12) | 0.0656 (15) | 0.0574 (13) | 0.0076 (11) | 0.0095 (10) | −0.0089 (12) |
C22 | 0.0664 (14) | 0.0641 (14) | 0.0443 (12) | −0.0100 (11) | −0.0024 (10) | −0.0130 (10) |
C23 | 0.0533 (11) | 0.0563 (13) | 0.0504 (12) | −0.0155 (10) | 0.0000 (10) | −0.0109 (10) |
N1 | 0.0483 (8) | 0.0304 (8) | 0.0479 (9) | −0.0011 (7) | 0.0056 (7) | −0.0043 (7) |
N2 | 0.0424 (8) | 0.0402 (9) | 0.0468 (9) | −0.0052 (7) | −0.0035 (7) | −0.0089 (7) |
N3 | 0.0466 (8) | 0.0466 (9) | 0.0435 (9) | −0.0090 (7) | 0.0003 (7) | −0.0097 (7) |
N4 | 0.0378 (8) | 0.0414 (9) | 0.0421 (9) | −0.0047 (7) | 0.0053 (7) | −0.0088 (7) |
O1 | 0.0470 (7) | 0.0553 (9) | 0.0553 (9) | −0.0150 (6) | 0.0028 (6) | −0.0171 (7) |
S1 | 0.0391 (2) | 0.0403 (3) | 0.0487 (3) | −0.00407 (19) | 0.00437 (19) | −0.0065 (2) |
C1—O1 | 1.213 (2) | C11—C16 | 1.373 (3) |
C1—N4 | 1.359 (2) | C11—C12 | 1.389 (3) |
C1—C2 | 1.504 (3) | C12—C13 | 1.391 (4) |
C2—S1 | 1.8009 (19) | C12—H12 | 0.9300 |
C2—H2A | 0.9700 | C13—C14 | 1.349 (4) |
C2—H2B | 0.9700 | C13—H13 | 0.9300 |
C3—N3 | 1.278 (2) | C14—C15 | 1.346 (4) |
C3—N4 | 1.367 (2) | C14—H14 | 0.9300 |
C3—S1 | 1.7487 (18) | C15—C16 | 1.387 (3) |
C4—N2 | 1.278 (2) | C15—H15 | 0.9300 |
C4—C9 | 1.496 (3) | C16—H16 | 0.9300 |
C4—C5 | 1.496 (3) | C17—N1 | 1.458 (2) |
C5—C6 | 1.537 (3) | C17—C18 | 1.510 (3) |
C5—C10 | 1.538 (3) | C17—H17 | 0.9800 |
C5—H5 | 0.9800 | C18—C23 | 1.377 (3) |
C6—C7 | 1.489 (3) | C18—C19 | 1.379 (3) |
C6—H6A | 0.9700 | C19—C20 | 1.372 (3) |
C6—H6B | 0.9700 | C19—H19 | 0.9300 |
C7—C8 | 1.526 (3) | C20—C21 | 1.350 (4) |
C7—H7A | 0.9700 | C20—H20 | 0.9300 |
C7—H7B | 0.9700 | C21—C22 | 1.360 (3) |
C8—C9 | 1.535 (3) | C21—H21 | 0.9300 |
C8—H8A | 0.9700 | C22—C23 | 1.375 (3) |
C8—H8B | 0.9700 | C22—H22 | 0.9300 |
C9—C17 | 1.541 (3) | C23—H23 | 0.9300 |
C9—H9 | 0.9800 | N1—H1A | 0.94 (3) |
C10—N1 | 1.466 (2) | N2—N3 | 1.414 (2) |
C10—C11 | 1.521 (3) | N4—H4A | 0.83 (2) |
C10—H10 | 0.9800 | ||
O1—C1—N4 | 124.69 (17) | C16—C11—C12 | 118.0 (2) |
O1—C1—C2 | 123.70 (17) | C16—C11—C10 | 123.06 (18) |
N4—C1—C2 | 111.60 (15) | C12—C11—C10 | 118.9 (2) |
C1—C2—S1 | 107.74 (13) | C11—C12—C13 | 119.8 (3) |
C1—C2—H2A | 110.2 | C11—C12—H12 | 120.1 |
S1—C2—H2A | 110.2 | C13—C12—H12 | 120.1 |
C1—C2—H2B | 110.2 | C14—C13—C12 | 121.2 (2) |
S1—C2—H2B | 110.2 | C14—C13—H13 | 119.4 |
H2A—C2—H2B | 108.5 | C12—C13—H13 | 119.4 |
N3—C3—N4 | 121.05 (17) | C15—C14—C13 | 119.4 (2) |
N3—C3—S1 | 126.91 (14) | C15—C14—H14 | 120.3 |
N4—C3—S1 | 112.04 (13) | C13—C14—H14 | 120.3 |
N2—C4—C9 | 129.74 (17) | C14—C15—C16 | 121.1 (3) |
N2—C4—C5 | 118.26 (17) | C14—C15—H15 | 119.4 |
C9—C4—C5 | 111.96 (15) | C16—C15—H15 | 119.4 |
C4—C5—C6 | 107.51 (17) | C11—C16—C15 | 120.5 (2) |
C4—C5—C10 | 108.35 (16) | C11—C16—H16 | 119.8 |
C6—C5—C10 | 114.83 (16) | C15—C16—H16 | 119.8 |
C4—C5—H5 | 108.7 | N1—C17—C18 | 110.86 (15) |
C6—C5—H5 | 108.7 | N1—C17—C9 | 110.57 (15) |
C10—C5—H5 | 108.7 | C18—C17—C9 | 110.78 (16) |
C7—C6—C5 | 113.48 (18) | N1—C17—H17 | 108.2 |
C7—C6—H6A | 108.9 | C18—C17—H17 | 108.2 |
C5—C6—H6A | 108.9 | C9—C17—H17 | 108.2 |
C7—C6—H6B | 108.9 | C23—C18—C19 | 116.5 (2) |
C5—C6—H6B | 108.9 | C23—C18—C17 | 123.12 (18) |
H6A—C6—H6B | 107.7 | C19—C18—C17 | 120.33 (18) |
C6—C7—C8 | 113.11 (19) | C20—C19—C18 | 121.8 (2) |
C6—C7—H7A | 109.0 | C20—C19—H19 | 119.1 |
C8—C7—H7A | 109.0 | C18—C19—H19 | 119.1 |
C6—C7—H7B | 109.0 | C21—C20—C19 | 120.7 (2) |
C8—C7—H7B | 109.0 | C21—C20—H20 | 119.6 |
H7A—C7—H7B | 107.8 | C19—C20—H20 | 119.6 |
C7—C8—C9 | 113.88 (18) | C20—C21—C22 | 118.7 (2) |
C7—C8—H8A | 108.8 | C20—C21—H21 | 120.7 |
C9—C8—H8A | 108.8 | C22—C21—H21 | 120.7 |
C7—C8—H8B | 108.8 | C21—C22—C23 | 121.1 (2) |
C9—C8—H8B | 108.8 | C21—C22—H22 | 119.5 |
H8A—C8—H8B | 107.7 | C23—C22—H22 | 119.5 |
C4—C9—C8 | 107.61 (17) | C22—C23—C18 | 121.2 (2) |
C4—C9—C17 | 107.63 (16) | C22—C23—H23 | 119.4 |
C8—C9—C17 | 114.75 (16) | C18—C23—H23 | 119.4 |
C4—C9—H9 | 108.9 | C17—N1—C10 | 115.60 (15) |
C8—C9—H9 | 108.9 | C17—N1—H1A | 108.1 (14) |
C17—C9—H9 | 108.9 | C10—N1—H1A | 107.7 (14) |
N1—C10—C11 | 110.42 (15) | C4—N2—N3 | 113.58 (17) |
N1—C10—C5 | 110.85 (16) | C3—N3—N2 | 108.82 (16) |
C11—C10—C5 | 110.40 (16) | C1—N4—C3 | 117.12 (16) |
N1—C10—H10 | 108.4 | C1—N4—H4A | 118.2 (17) |
C11—C10—H10 | 108.4 | C3—N4—H4A | 124.0 (17) |
C5—C10—H10 | 108.4 | C3—S1—C2 | 91.47 (8) |
O1—C1—C2—S1 | 178.98 (16) | C4—C9—C17—N1 | −55.7 (2) |
N4—C1—C2—S1 | −1.0 (2) | C8—C9—C17—N1 | 64.0 (2) |
N2—C4—C5—C6 | −114.0 (2) | C4—C9—C17—C18 | −179.00 (15) |
C9—C4—C5—C6 | 64.1 (2) | C8—C9—C17—C18 | −59.3 (2) |
N2—C4—C5—C10 | 121.3 (2) | N1—C17—C18—C23 | −13.3 (3) |
C9—C4—C5—C10 | −60.5 (2) | C9—C17—C18—C23 | 109.8 (2) |
C4—C5—C6—C7 | −55.1 (2) | N1—C17—C18—C19 | 169.9 (2) |
C10—C5—C6—C7 | 65.6 (2) | C9—C17—C18—C19 | −66.9 (3) |
C5—C6—C7—C8 | 47.2 (2) | C23—C18—C19—C20 | 1.0 (4) |
C6—C7—C8—C9 | −46.0 (3) | C17—C18—C19—C20 | 177.9 (3) |
N2—C4—C9—C8 | 115.1 (2) | C18—C19—C20—C21 | 1.2 (5) |
C5—C4—C9—C8 | −62.8 (2) | C19—C20—C21—C22 | −2.0 (5) |
N2—C4—C9—C17 | −120.7 (2) | C20—C21—C22—C23 | 0.8 (4) |
C5—C4—C9—C17 | 61.4 (2) | C21—C22—C23—C18 | 1.4 (4) |
C7—C8—C9—C4 | 52.2 (2) | C19—C18—C23—C22 | −2.2 (3) |
C7—C8—C9—C17 | −67.6 (2) | C17—C18—C23—C22 | −179.0 (2) |
C4—C5—C10—N1 | 53.5 (2) | C18—C17—N1—C10 | 177.21 (15) |
C6—C5—C10—N1 | −66.7 (2) | C9—C17—N1—C10 | 54.0 (2) |
C4—C5—C10—C11 | 176.21 (16) | C11—C10—N1—C17 | −175.50 (16) |
C6—C5—C10—C11 | 56.0 (2) | C5—C10—N1—C17 | −52.8 (2) |
N1—C10—C11—C16 | 15.8 (3) | C9—C4—N2—N3 | 1.4 (3) |
C5—C10—C11—C16 | −107.2 (2) | C5—C4—N2—N3 | 179.20 (16) |
N1—C10—C11—C12 | −166.51 (18) | N4—C3—N3—N2 | −179.13 (16) |
C5—C10—C11—C12 | 70.6 (2) | S1—C3—N3—N2 | 1.1 (2) |
C16—C11—C12—C13 | −0.4 (3) | C4—N2—N3—C3 | −177.32 (17) |
C10—C11—C12—C13 | −178.2 (2) | O1—C1—N4—C3 | −178.36 (18) |
C11—C12—C13—C14 | −0.1 (4) | C2—C1—N4—C3 | 1.6 (2) |
C12—C13—C14—C15 | 0.2 (4) | N3—C3—N4—C1 | 178.78 (18) |
C13—C14—C15—C16 | 0.3 (5) | S1—C3—N4—C1 | −1.5 (2) |
C12—C11—C16—C15 | 0.9 (4) | N3—C3—S1—C2 | −179.58 (19) |
C10—C11—C16—C15 | 178.7 (2) | N4—C3—S1—C2 | 0.67 (15) |
C14—C15—C16—C11 | −0.9 (5) | C1—C2—S1—C3 | 0.16 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4A···O1i | 0.83 (2) | 2.03 (2) | 2.847 (2) | 169 (2) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C23H24N4OS |
Mr | 404.53 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 8.3183 (3), 10.8435 (4), 22.7417 (8) |
β (°) | 92.483 (2) |
V (Å3) | 2049.36 (13) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.18 |
Crystal size (mm) | 0.25 × 0.20 × 0.15 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker 1999) |
Tmin, Tmax | 0.956, 0.974 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 31153, 7820, 4068 |
Rint | 0.053 |
(sin θ/λ)max (Å−1) | 0.771 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.062, 0.203, 1.04 |
No. of reflections | 7820 |
No. of parameters | 270 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.42, −0.33 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SIR92 (Altomare et al., 1993), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2006).
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4A···O1i | 0.83 (2) | 2.03 (2) | 2.847 (2) | 169 (2) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Acknowledgements
The authors are grateful to Dr Babu Varghese, Senior Scientist, Indian Institute of Technology Madras, for his valuable suggestions and for the data collection.
References
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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 are an interesting backbone unit in medicinal chemistry and is responsible for numerous pharmacological and biological properties (Shih & Ke, 2004; Laurent et al., 2004), which inspires our research interest in this area towards the synthesis of thiazolidinone unit. The importance of bicyclic compounds as intermediates in the synthesis of a several physiologically active compounds have reviewed by Jeyaraman & Avila, (1981). Moreover, these bridged bicyclic compounds exhibit twin chair, chair–boat or twin boat conformations to be elucidated possessing interesting stereochemistry. In order to investigate the change in molecular conformation of piperidine and cyclohexane ring, the present investigation was made and confirmed by X–ray diffraction study.
We found, that six–membered heterocyclic piperidine ring (Fig. 1) adopt normal chair conformation with the puckering parameters (Cremer & Pople, 1975) being q1 and q2 are 0.0714 (19) Å and -0.567 (19) Å, respectively. The total puckering amplitude, QT=0.572 (19) Å; θ=173.03 (19)°. Similarly, the cyclohexane ring is also adopt normal chair conformation with the puckering parameters being q1 and q2 are 0.121 (2)Å and 0.552 (2) Å, respectively. The puckering amplitude, QT=0.562 (2) Å, θ=12.5 (2)°. The planar phenyl rings occupy equatorial orientation of the piperidine ring and its subtending angle between the phenyl ring and the best plane of the piperidine ring is 10.25 (12)°. The crystal structure is stabilized by intermolecular N4—H4A···O1i hydrogen bonds (Fig. 2) with formation of centrosymmetrical dimers. Symmetry code: (i) -x+1, -y+1, -z+1.