organic compounds
Z)-3-allyl-5-(4-methylbenzylidene)-2-sulfanylidene-1,3-thiazolidin-4-one
of (aLaboratoire de Chimie Organique et Analytique, Université Sultan Moulay Slimane, Faculté des Sciences et Techniques, Béni-Mellal, BP 523, Morocco, and bLaboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V, Avenue Ibn Battouta, BP 1014, Rabat, Morocco
*Correspondence e-mail: r_elajlaoui@yahoo.fr
In the title compound, C14H13NOS2, the atoms of the allyl group are disordered over two sets of sites, with an occupancy ratio of 0.559 (10):0.441 (10). The rhodanine ring makes a dihedral angle of 5.51 (12)° with the mean plane through the p-tolyl group. There are no specific intermolecular interactions in the crystal packing.
Keywords: crystal structure; 1,3-thiazolidin-4-one; biological activity; rhodanine-based molecules.
CCDC reference: 1433844
1. Related literature
For biological activities of rhodanine-based molecules, see: Tomasić & Masic (2009); Jiang et al. (2011); Bulic et al. (2009); Sing et al. (2001); Grant et al. (2000); Orchard et al. (2004); Cutshall et al. (2005); Sortino et al. (2007); Kesel (2003).
2. Experimental
2.1. Crystal data
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2.3. Refinement
|
Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); 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 ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009) and publCIF (Westrip, 2010).
Supporting information
CCDC reference: 1433844
https://doi.org/10.1107/S2056989015020460/im2472sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989015020460/im2472Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989015020460/im2472Isup3.cml
Rhodanine-based molecules are known to possess diverse biological activities (Tomasic & Masic, 2009) through the inhibition of numerous targets such as HIV-1 (Jiang et al. 2011), Alzheimer's deseases (Bulic et al. 2009), HCV NS3 protease (Sing et al. 2001), β-lactamase (Grant et al. 2000), PMT1 mannosyl transferase (Orchard et al. 2004), PRL-3 and JSP-1 phosphatases (Cutshall et al. 2005). Additionally, they have been reported to possess antimicrobial (Sortino et al. 2007) and antiviral (Kesel, 2003) activities. The unusual biological activity displayed by many rhodanine-based molecules have made them attractive synthetic targets.
The rhodanine and p-tolyl ring systems (S2—N1—C9—C10—C11 and C2 to C7) are slightly inclined as indicated by the dihedral angle of 5.51 (12)° between them. The rhodanine moiety is linked to an allyl group at the nitrogen atom and to a p-tolyl group at C(5) as shown in Fig.1. Moreover, the molecule of the title compound is characterized by a disorder in the allyl group in which all atoms are split with an occupancy factors of 0.559 (9) : 0.441 (9). No specific intermolecular interactions are observed in the crystal packing.
To a solution of 3-allylrhodanine (1.15 mmol, 0.2 g) in 10 ml of THF, (4-methylbenzylidene)-4-methyl-5-oxopyrazolidin-2-ium-1-ide (1.38 mmol) was added. The mixture was refluxed for 8 h, monitored by TLC, the reaction completed and a yellow spot (TLC Rf = 0.3, using hexane/ethyl acetate 1:9) was generated cleanly. The solvent was evaporated in vacuo. The crude product was purified on silica gel using hexane: ethyl acetate (1/9) as
The title compound was recrystallized from ethanol (Yield: 75%; m.p.: 390 K).Crystal data, data collection and structure
details are summarized in Table 1. The reflection (0 0 1) affected by the beamstop was removed during The of the model requires constraints on the distance C13A—C14A and C13B—C14B of the disordered allyl group. H atoms were located in a difference map and treated as riding with C–H = 0.96 Å, C–H = 0.97 Å and C–H = 0.93 Å for methyl, methylene and aromatic hydrogen atoms, respectively. All hydrogen atoms were refined with a common thermal displacement parameter of Uiso(H) = 1.5 Ueq for methyl and Uiso(H) = 1.2 Ueq for methylene and aromatic hydrogen atoms.Rhodanine-based molecules are known to possess diverse biological activities (Tomasic & Masic, 2009) through the inhibition of numerous targets such as HIV-1 (Jiang et al. 2011), Alzheimer's deseases (Bulic et al. 2009), HCV NS3 protease (Sing et al. 2001), β-lactamase (Grant et al. 2000), PMT1 mannosyl transferase (Orchard et al. 2004), PRL-3 and JSP-1 phosphatases (Cutshall et al. 2005). Additionally, they have been reported to possess antimicrobial (Sortino et al. 2007) and antiviral (Kesel, 2003) activities. The unusual biological activity displayed by many rhodanine-based molecules have made them attractive synthetic targets.
The rhodanine and p-tolyl ring systems (S2—N1—C9—C10—C11 and C2 to C7) are slightly inclined as indicated by the dihedral angle of 5.51 (12)° between them. The rhodanine moiety is linked to an allyl group at the nitrogen atom and to a p-tolyl group at C(5) as shown in Fig.1. Moreover, the molecule of the title compound is characterized by a disorder in the allyl group in which all atoms are split with an occupancy factors of 0.559 (9) : 0.441 (9). No specific intermolecular interactions are observed in the crystal packing.
For biological activities of rhodanine-based molecules, see: Tomasić & Masic (2009); Jiang et al. (2011); Bulic et al. (2009); Sing et al. (2001); Grant et al. (2000); Orchard et al. (2004); Cutshall et al. (2005); Sortino et al. (2007); Kesel (2003).
To a solution of 3-allylrhodanine (1.15 mmol, 0.2 g) in 10 ml of THF, (4-methylbenzylidene)-4-methyl-5-oxopyrazolidin-2-ium-1-ide (1.38 mmol) was added. The mixture was refluxed for 8 h, monitored by TLC, the reaction completed and a yellow spot (TLC Rf = 0.3, using hexane/ethyl acetate 1:9) was generated cleanly. The solvent was evaporated in vacuo. The crude product was purified on silica gel using hexane: ethyl acetate (1/9) as
The title compound was recrystallized from ethanol (Yield: 75%; m.p.: 390 K). detailsCrystal data, data collection and structure
details are summarized in Table 1. The reflection (0 0 1) affected by the beamstop was removed during The of the model requires constraints on the distance C13A—C14A and C13B—C14B of the disordered allyl group. H atoms were located in a difference map and treated as riding with C–H = 0.96 Å, C–H = 0.97 Å and C–H = 0.93 Å for methyl, methylene and aromatic hydrogen atoms, respectively. All hydrogen atoms were refined with a common thermal displacement parameter of Uiso(H) = 1.5 Ueq for methyl and Uiso(H) = 1.2 Ueq for methylene and aromatic hydrogen atoms.Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); 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 ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009) and publCIF (Westrip, 2010).Fig. 1. Plot of the molecule of the title compound with displacement ellipsoids are drawn at the 50% probability level. H atoms are represented as small circles. |
C14H13NOS2 | F(000) = 288 |
Mr = 275.37 | Dx = 1.343 Mg m−3 |
Triclinic, P1 | Melting point: 390 K |
a = 7.3606 (4) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 8.8342 (6) Å | Cell parameters from 2853 reflections |
c = 11.3134 (7) Å | θ = 2.5–26.6° |
α = 109.736 (2)° | µ = 0.38 mm−1 |
β = 95.380 (2)° | T = 296 K |
γ = 96.502 (2)° | Block, yellow |
V = 681.10 (7) Å3 | 0.37 × 0.35 × 0.28 mm |
Z = 2 |
Bruker X8 APEX diffractometer | 2853 independent reflections |
Radiation source: fine-focus sealed tube | 2241 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
φ and ω scans | θmax = 26.6°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −9→9 |
Tmin = 0.700, Tmax = 0.746 | k = −11→11 |
21519 measured reflections | l = −14→14 |
Refinement on F2 | 2 restraints |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.043 | H-atom parameters constrained |
wR(F2) = 0.133 | w = 1/[σ2(Fo2) + (0.0651P)2 + 0.2196P] where P = (Fo2 + 2Fc2)/3 |
S = 1.07 | (Δ/σ)max < 0.001 |
2853 reflections | Δρmax = 0.34 e Å−3 |
182 parameters | Δρmin = −0.21 e Å−3 |
C14H13NOS2 | γ = 96.502 (2)° |
Mr = 275.37 | V = 681.10 (7) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.3606 (4) Å | Mo Kα radiation |
b = 8.8342 (6) Å | µ = 0.38 mm−1 |
c = 11.3134 (7) Å | T = 296 K |
α = 109.736 (2)° | 0.37 × 0.35 × 0.28 mm |
β = 95.380 (2)° |
Bruker X8 APEX diffractometer | 2853 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 2241 reflections with I > 2σ(I) |
Tmin = 0.700, Tmax = 0.746 | Rint = 0.032 |
21519 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 2 restraints |
wR(F2) = 0.133 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.34 e Å−3 |
2853 reflections | Δρmin = −0.21 e Å−3 |
182 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. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
C1 | 0.5130 (4) | 0.6507 (3) | 1.2642 (3) | 0.0784 (7) | |
H1A | 0.3857 | 0.6024 | 1.2376 | 0.118* | |
H1B | 0.5440 | 0.6723 | 1.3533 | 0.118* | |
H1C | 0.5329 | 0.7509 | 1.2481 | 0.118* | |
C2 | 0.6328 (3) | 0.5359 (3) | 1.1916 (2) | 0.0591 (5) | |
C3 | 0.8224 (3) | 0.5758 (3) | 1.2117 (2) | 0.0644 (6) | |
H3 | 0.8773 | 0.6754 | 1.2720 | 0.077* | |
C4 | 0.9323 (3) | 0.4717 (3) | 1.1444 (2) | 0.0608 (6) | |
H4 | 1.0599 | 0.5021 | 1.1607 | 0.073* | |
C5 | 0.8563 (3) | 0.3212 (2) | 1.05205 (18) | 0.0507 (5) | |
C6 | 0.6656 (3) | 0.2794 (3) | 1.0338 (2) | 0.0604 (5) | |
H6 | 0.6103 | 0.1791 | 0.9747 | 0.073* | |
C7 | 0.5571 (3) | 0.3847 (3) | 1.1022 (2) | 0.0659 (6) | |
H7 | 0.4296 | 0.3536 | 1.0882 | 0.079* | |
C8 | 0.9804 (3) | 0.2217 (3) | 0.98157 (19) | 0.0530 (5) | |
H8 | 1.1048 | 0.2647 | 1.0078 | 0.064* | |
C9 | 0.9485 (3) | 0.0782 (3) | 0.88491 (19) | 0.0518 (5) | |
C10 | 1.1041 (3) | 0.0018 (3) | 0.8283 (2) | 0.0552 (5) | |
C11 | 0.8509 (3) | −0.1882 (3) | 0.7007 (2) | 0.0594 (5) | |
C12 | 1.1670 (4) | −0.2379 (3) | 0.6539 (2) | 0.0695 (6) | |
H12A | 1.1258 | −0.3537 | 0.6306 | 0.083* | |
H12B | 1.2900 | −0.2102 | 0.7018 | 0.083* | |
C13A | 1.1640 (13) | −0.1898 (15) | 0.5393 (11) | 0.090 (3) | 0.441 (10) |
H13A | 1.0526 | −0.2181 | 0.4852 | 0.108* | 0.441 (10) |
C14A | 1.3042 (16) | −0.1105 (14) | 0.5064 (12) | 0.147 (5) | 0.441 (10) |
H14A | 1.4185 | −0.0794 | 0.5573 | 0.177* | 0.441 (10) |
H14B | 1.2876 | −0.0863 | 0.4326 | 0.177* | 0.441 (10) |
C13B | 1.2460 (12) | −0.1897 (10) | 0.5554 (8) | 0.077 (2) | 0.559 (10) |
H13B | 1.3415 | −0.2408 | 0.5196 | 0.092* | 0.559 (10) |
C14B | 1.1877 (12) | −0.0760 (8) | 0.5147 (6) | 0.101 (3) | 0.559 (10) |
H14C | 1.0923 | −0.0231 | 0.5491 | 0.121* | 0.559 (10) |
H14D | 1.2423 | −0.0497 | 0.4519 | 0.121* | 0.559 (10) |
N1 | 1.0378 (3) | −0.1426 (2) | 0.72653 (17) | 0.0560 (4) | |
O1 | 1.2661 (2) | 0.0540 (2) | 0.86169 (17) | 0.0734 (5) | |
S1 | 0.73489 (11) | −0.35069 (9) | 0.59005 (7) | 0.0874 (3) | |
S2 | 0.73980 (7) | −0.04619 (7) | 0.80585 (5) | 0.0607 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0840 (18) | 0.0719 (16) | 0.0752 (17) | 0.0164 (14) | 0.0191 (14) | 0.0170 (14) |
C2 | 0.0674 (13) | 0.0592 (13) | 0.0517 (12) | 0.0074 (10) | 0.0086 (10) | 0.0217 (10) |
C3 | 0.0730 (15) | 0.0523 (12) | 0.0566 (12) | −0.0057 (11) | 0.0068 (11) | 0.0102 (10) |
C4 | 0.0523 (11) | 0.0603 (13) | 0.0602 (13) | −0.0082 (10) | 0.0000 (10) | 0.0165 (11) |
C5 | 0.0541 (11) | 0.0526 (11) | 0.0445 (10) | −0.0004 (9) | 0.0024 (8) | 0.0200 (9) |
C6 | 0.0567 (12) | 0.0552 (12) | 0.0564 (12) | −0.0027 (10) | −0.0022 (10) | 0.0093 (10) |
C7 | 0.0497 (12) | 0.0697 (14) | 0.0679 (14) | 0.0011 (10) | 0.0030 (10) | 0.0149 (12) |
C8 | 0.0503 (11) | 0.0537 (11) | 0.0523 (11) | −0.0027 (9) | 0.0008 (9) | 0.0201 (9) |
C9 | 0.0527 (11) | 0.0529 (11) | 0.0502 (11) | 0.0019 (9) | 0.0022 (9) | 0.0218 (9) |
C10 | 0.0592 (12) | 0.0566 (12) | 0.0521 (11) | 0.0056 (10) | 0.0077 (9) | 0.0231 (10) |
C11 | 0.0710 (14) | 0.0527 (12) | 0.0531 (12) | 0.0057 (10) | −0.0007 (10) | 0.0204 (10) |
C12 | 0.0810 (16) | 0.0628 (14) | 0.0660 (14) | 0.0176 (12) | 0.0197 (12) | 0.0197 (12) |
C13A | 0.078 (6) | 0.123 (8) | 0.077 (5) | 0.049 (7) | 0.023 (5) | 0.030 (5) |
C14A | 0.171 (11) | 0.176 (11) | 0.163 (10) | 0.100 (10) | 0.091 (9) | 0.106 (9) |
C13B | 0.064 (4) | 0.102 (4) | 0.081 (4) | 0.033 (4) | 0.036 (4) | 0.040 (3) |
C14B | 0.128 (7) | 0.105 (5) | 0.092 (4) | 0.026 (4) | 0.043 (4) | 0.054 (4) |
N1 | 0.0635 (11) | 0.0541 (10) | 0.0526 (10) | 0.0100 (8) | 0.0082 (8) | 0.0211 (8) |
O1 | 0.0546 (9) | 0.0745 (11) | 0.0810 (11) | 0.0037 (8) | 0.0101 (8) | 0.0164 (9) |
S1 | 0.0934 (5) | 0.0627 (4) | 0.0795 (5) | 0.0007 (3) | −0.0076 (4) | −0.0002 (3) |
S2 | 0.0540 (3) | 0.0597 (4) | 0.0580 (3) | 0.0004 (2) | −0.0020 (2) | 0.0126 (3) |
C1—C2 | 1.502 (3) | C10—O1 | 1.204 (3) |
C1—H1A | 0.9600 | C10—N1 | 1.397 (3) |
C1—H1B | 0.9600 | C11—N1 | 1.364 (3) |
C1—H1C | 0.9600 | C11—S1 | 1.633 (2) |
C2—C3 | 1.378 (3) | C11—S2 | 1.751 (2) |
C2—C7 | 1.390 (3) | C12—C13B | 1.465 (8) |
C3—C4 | 1.374 (3) | C12—N1 | 1.466 (3) |
C3—H3 | 0.9300 | C12—C13A | 1.493 (12) |
C4—C5 | 1.399 (3) | C12—H12A | 0.9700 |
C4—H4 | 0.9300 | C12—H12B | 0.9700 |
C5—C6 | 1.388 (3) | C13A—C14A | 1.3337 (10) |
C5—C8 | 1.445 (3) | C13A—H13A | 0.9300 |
C6—C7 | 1.378 (3) | C14A—H14A | 0.9300 |
C6—H6 | 0.9300 | C14A—H14B | 0.9300 |
C7—H7 | 0.9300 | C13B—C14B | 1.3331 (10) |
C8—C9 | 1.344 (3) | C13B—H13B | 0.9300 |
C8—H8 | 0.9300 | C14B—H14C | 0.9300 |
C9—C10 | 1.482 (3) | C14B—H14D | 0.9300 |
C9—S2 | 1.750 (2) | ||
C2—C1—H1A | 109.5 | O1—C10—N1 | 123.1 (2) |
C2—C1—H1B | 109.5 | O1—C10—C9 | 126.5 (2) |
H1A—C1—H1B | 109.5 | N1—C10—C9 | 110.46 (18) |
C2—C1—H1C | 109.5 | N1—C11—S1 | 127.64 (18) |
H1A—C1—H1C | 109.5 | N1—C11—S2 | 110.78 (16) |
H1B—C1—H1C | 109.5 | S1—C11—S2 | 121.58 (15) |
C3—C2—C7 | 117.3 (2) | C13B—C12—N1 | 119.7 (3) |
C3—C2—C1 | 121.3 (2) | N1—C12—C13A | 103.2 (5) |
C7—C2—C1 | 121.4 (2) | N1—C12—H12A | 111.1 |
C4—C3—C2 | 121.4 (2) | C13A—C12—H12A | 111.1 |
C4—C3—H3 | 119.3 | N1—C12—H12B | 111.1 |
C2—C3—H3 | 119.3 | C13A—C12—H12B | 111.1 |
C3—C4—C5 | 121.4 (2) | H12A—C12—H12B | 109.1 |
C3—C4—H4 | 119.3 | C14A—C13A—C12 | 126.8 (11) |
C5—C4—H4 | 119.3 | C14A—C13A—H13A | 116.6 |
C6—C5—C4 | 117.1 (2) | C12—C13A—H13A | 116.6 |
C6—C5—C8 | 124.73 (19) | C13A—C14A—H14A | 120.0 |
C4—C5—C8 | 118.14 (19) | C13A—C14A—H14B | 120.0 |
C7—C6—C5 | 120.8 (2) | H14A—C14A—H14B | 120.0 |
C7—C6—H6 | 119.6 | C14B—C13B—C12 | 123.2 (7) |
C5—C6—H6 | 119.6 | C14B—C13B—H13B | 118.4 |
C6—C7—C2 | 121.8 (2) | C12—C13B—H13B | 118.4 |
C6—C7—H7 | 119.1 | C13B—C14B—H14C | 120.0 |
C2—C7—H7 | 119.1 | C13B—C14B—H14D | 120.0 |
C9—C8—C5 | 131.6 (2) | H14C—C14B—H14D | 120.0 |
C9—C8—H8 | 114.2 | C11—N1—C10 | 116.69 (19) |
C5—C8—H8 | 114.2 | C11—N1—C12 | 123.1 (2) |
C8—C9—C10 | 120.57 (19) | C10—N1—C12 | 120.2 (2) |
C8—C9—S2 | 130.12 (17) | C9—S2—C11 | 92.73 (10) |
C10—C9—S2 | 109.31 (15) |
Experimental details
Crystal data | |
Chemical formula | C14H13NOS2 |
Mr | 275.37 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 7.3606 (4), 8.8342 (6), 11.3134 (7) |
α, β, γ (°) | 109.736 (2), 95.380 (2), 96.502 (2) |
V (Å3) | 681.10 (7) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.38 |
Crystal size (mm) | 0.37 × 0.35 × 0.28 |
Data collection | |
Diffractometer | Bruker X8 APEX |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.700, 0.746 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21519, 2853, 2241 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.630 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.133, 1.07 |
No. of reflections | 2853 |
No. of parameters | 182 |
No. of restraints | 2 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.34, −0.21 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEPIII (Burnett & Johnson, 1996) and ORTEP-3 for Windows (Farrugia, 2012), PLATON (Spek, 2009) and publCIF (Westrip, 2010).
Acknowledgements
The authors thank the Unit of Support for Technical and Scientific Research (UATRS, CNRST) for the X-ray measurements and the University Sultan Moulay Slimane, Beni-Mellal, Morocco, for the financial support.
References
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