organic compounds
(E)-3-(4-Methylphenyl)-1-(1,3-thiazol-2-yl)prop-2-en-1-one
aDepartment of Chemistry, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India, and bDepartment of Image Science and Engineering, Pukyong National University, Busan 608 737, Republic of Korea
*Correspondence e-mail: synorgramu@gmail.com
In the title chalcone, C13H11NOS, derived from the condensation of p-tolualdehyde and 1-(1,3-thiazol-2-yl)ethanone, the olefine group has a trans configuration. No classical hydrogen bonding is present in the crystal structure.
Related literature
For background to thiazoles, see: Fontecave et al. (2003); Kleemann et al. (2001) and for their biological activity, see: Bharti et al. (2010); Bell et al. (1995); Cortes et al. (2007).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT-Plus (Bruker, 2004); data reduction: SAINT-Plus and XPREP (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 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536812019575/ez2285sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812019575/ez2285Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812019575/ez2285Isup3.cml
To an aqueous ethanolic solution of p-tolualdehyde (0.01 mol) and 2-acetylthiazole (0.01 mol), a sodium hydroxide solution was added slowly and stirred until a precipitate formed. The obtained solid was filtered and washed well with water. Single crystals were grown by the slow evaporation technique using ethanol as solvent.
H-atoms were positioned and refined using a riding model, with aromatic C—H = 0.93 Å, methine C—H = 0.98 Å, methylene C—H = 0.97 Å and amino N—H = 0.83 and 0.94 Å. The displacement parameters were set for phenyl, methylene and aliphatic H atoms at Uiso(H)=1.2Ueq(C).
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT-Plus (Bruker, 2004); data reduction: SAINT-Plus and XPREP (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 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. The ORTEP representation of title compound showing the atom numbering scheme and ellipsoids at the 50% probability level. |
C13H11NOS | Z = 4 |
Mr = 229.29 | F(000) = 480 |
Monoclinic, P21/c | Dx = 1.339 Mg m−3 |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 13.9486 (9) Å | µ = 0.26 mm−1 |
b = 11.1773 (8) Å | T = 293 K |
c = 7.4579 (5) Å | Prism, colorless |
β = 102.061 (4)° | 0.20 × 0.20 × 0.20 mm |
V = 1137.08 (13) Å3 |
Bruker Kappa APEXII CCD diffractometer | 2808 independent reflections |
Radiation source: fine-focus sealed tube | 2070 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
ω and ϕ scan | θmax = 28.3°, θmin = 1.5° |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | h = −18→17 |
Tmin = 0.949, Tmax = 0.949 | k = −11→14 |
10320 measured reflections | l = −9→9 |
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)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.118 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0598P)2 + 0.1832P] where P = (Fo2 + 2Fc2)/3 |
2808 reflections | (Δ/σ)max = 0.001 |
153 parameters | Δρmax = 0.23 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C13H11NOS | V = 1137.08 (13) Å3 |
Mr = 229.29 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 13.9486 (9) Å | µ = 0.26 mm−1 |
b = 11.1773 (8) Å | T = 293 K |
c = 7.4579 (5) Å | 0.20 × 0.20 × 0.20 mm |
β = 102.061 (4)° |
Bruker Kappa APEXII CCD diffractometer | 2808 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | 2070 reflections with I > 2σ(I) |
Tmin = 0.949, Tmax = 0.949 | Rint = 0.027 |
10320 measured reflections |
R[F2 > 2σ(F2)] = 0.040 | 0 restraints |
wR(F2) = 0.118 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.23 e Å−3 |
2808 reflections | Δρmin = −0.24 e Å−3 |
153 parameters |
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 | ||
S1 | 0.98502 (3) | 0.17057 (5) | 1.16674 (6) | 0.05963 (18) | |
O1 | 0.82353 (10) | −0.00430 (12) | 1.0300 (2) | 0.0721 (4) | |
N1 | 0.84607 (10) | 0.31056 (13) | 1.0198 (2) | 0.0540 (4) | |
C1 | 0.53219 (10) | 0.08303 (13) | 0.72422 (19) | 0.0380 (3) | |
C7 | 0.62986 (11) | 0.05556 (15) | 0.8309 (2) | 0.0425 (3) | |
C4 | 0.34124 (11) | 0.13769 (15) | 0.5336 (2) | 0.0451 (4) | |
C10 | 0.86817 (11) | 0.19796 (15) | 1.0453 (2) | 0.0440 (4) | |
C2 | 0.51393 (11) | 0.18190 (13) | 0.6090 (2) | 0.0420 (3) | |
H2 | 0.5657 | 0.2309 | 0.5948 | 0.050* | |
C8 | 0.70403 (11) | 0.13124 (16) | 0.8719 (2) | 0.0471 (4) | |
C3 | 0.42049 (11) | 0.20835 (15) | 0.5155 (2) | 0.0458 (4) | |
H3 | 0.4102 | 0.2748 | 0.4388 | 0.055* | |
C6 | 0.45308 (11) | 0.01025 (14) | 0.7382 (2) | 0.0451 (4) | |
H6 | 0.4635 | −0.0578 | 0.8113 | 0.054* | |
C9 | 0.79948 (11) | 0.09785 (15) | 0.9842 (2) | 0.0476 (4) | |
C5 | 0.35920 (12) | 0.03767 (15) | 0.6448 (2) | 0.0497 (4) | |
H5 | 0.3074 | −0.0119 | 0.6570 | 0.060* | |
C13 | 0.23967 (13) | 0.16866 (19) | 0.4303 (3) | 0.0681 (5) | |
H4C | 0.2421 | 0.2405 | 0.3608 | 0.102* | |
H4A | 0.1977 | 0.1809 | 0.5156 | 0.102* | |
H4B | 0.2145 | 0.1043 | 0.3487 | 0.102* | |
C12 | 0.92396 (14) | 0.37879 (19) | 1.1005 (3) | 0.0646 (5) | |
H12 | 0.9216 | 0.4619 | 1.0966 | 0.078* | |
C11 | 1.00462 (14) | 0.31959 (19) | 1.1861 (3) | 0.0622 (5) | |
H11 | 1.0625 | 0.3554 | 1.2469 | 0.075* | |
H7 | 0.6378 (13) | −0.0218 (18) | 0.877 (2) | 0.059 (5)* | |
H8 | 0.6995 (14) | 0.2095 (18) | 0.835 (3) | 0.066 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0395 (2) | 0.0771 (4) | 0.0562 (3) | 0.0054 (2) | −0.00395 (18) | 0.0080 (2) |
O1 | 0.0545 (7) | 0.0519 (8) | 0.1003 (11) | 0.0082 (6) | −0.0058 (7) | 0.0108 (7) |
N1 | 0.0422 (7) | 0.0531 (9) | 0.0628 (9) | 0.0023 (6) | 0.0019 (6) | −0.0033 (7) |
C1 | 0.0372 (7) | 0.0350 (7) | 0.0417 (7) | 0.0004 (6) | 0.0080 (6) | −0.0042 (6) |
C7 | 0.0412 (8) | 0.0394 (8) | 0.0465 (8) | 0.0040 (6) | 0.0079 (6) | −0.0002 (7) |
C4 | 0.0383 (7) | 0.0472 (9) | 0.0476 (8) | 0.0011 (6) | 0.0040 (6) | −0.0089 (7) |
C10 | 0.0333 (7) | 0.0566 (9) | 0.0405 (8) | 0.0055 (7) | 0.0041 (6) | 0.0014 (7) |
C2 | 0.0389 (7) | 0.0395 (8) | 0.0477 (8) | −0.0048 (6) | 0.0096 (6) | 0.0008 (6) |
C8 | 0.0390 (8) | 0.0444 (9) | 0.0544 (9) | 0.0022 (7) | 0.0017 (7) | 0.0025 (7) |
C3 | 0.0469 (8) | 0.0420 (8) | 0.0465 (8) | 0.0026 (7) | 0.0046 (6) | 0.0035 (7) |
C6 | 0.0478 (8) | 0.0341 (8) | 0.0526 (9) | −0.0041 (6) | 0.0083 (7) | 0.0028 (7) |
C9 | 0.0378 (7) | 0.0517 (10) | 0.0519 (9) | 0.0049 (7) | 0.0059 (6) | 0.0019 (7) |
C5 | 0.0410 (8) | 0.0459 (9) | 0.0619 (10) | −0.0110 (7) | 0.0099 (7) | −0.0046 (7) |
C13 | 0.0425 (9) | 0.0759 (13) | 0.0777 (13) | 0.0042 (9) | −0.0063 (9) | −0.0058 (10) |
C12 | 0.0560 (10) | 0.0618 (12) | 0.0722 (12) | −0.0096 (9) | 0.0047 (9) | −0.0107 (10) |
C11 | 0.0466 (9) | 0.0835 (14) | 0.0530 (10) | −0.0139 (9) | 0.0025 (8) | −0.0082 (9) |
S1—C11 | 1.689 (2) | C2—C3 | 1.376 (2) |
S1—C10 | 1.7185 (15) | C2—H2 | 0.9300 |
O1—C9 | 1.219 (2) | C8—C9 | 1.465 (2) |
N1—C10 | 1.300 (2) | C8—H8 | 0.92 (2) |
N1—C12 | 1.360 (2) | C3—H3 | 0.9300 |
C1—C2 | 1.390 (2) | C6—C5 | 1.383 (2) |
C1—C6 | 1.392 (2) | C6—H6 | 0.9300 |
C1—C7 | 1.460 (2) | C5—H5 | 0.9300 |
C7—C8 | 1.322 (2) | C13—H4C | 0.9600 |
C7—H7 | 0.929 (19) | C13—H4A | 0.9600 |
C4—C5 | 1.383 (2) | C13—H4B | 0.9600 |
C4—C3 | 1.388 (2) | C12—C11 | 1.346 (3) |
C4—C13 | 1.505 (2) | C12—H12 | 0.9300 |
C10—C9 | 1.482 (2) | C11—H11 | 0.9300 |
C11—S1—C10 | 89.32 (9) | C4—C3—H3 | 119.4 |
C10—N1—C12 | 109.56 (16) | C5—C6—C1 | 120.99 (14) |
C2—C1—C6 | 117.70 (13) | C5—C6—H6 | 119.5 |
C2—C1—C7 | 122.26 (13) | C1—C6—H6 | 119.5 |
C6—C1—C7 | 120.03 (14) | O1—C9—C8 | 124.27 (16) |
C8—C7—C1 | 126.00 (15) | O1—C9—C10 | 119.91 (15) |
C8—C7—H7 | 118.9 (11) | C8—C9—C10 | 115.81 (14) |
C1—C7—H7 | 115.1 (11) | C6—C5—C4 | 120.98 (14) |
C5—C4—C3 | 118.03 (14) | C6—C5—H5 | 119.5 |
C5—C4—C13 | 121.73 (16) | C4—C5—H5 | 119.5 |
C3—C4—C13 | 120.21 (16) | C4—C13—H4C | 109.5 |
N1—C10—C9 | 124.58 (14) | C4—C13—H4A | 109.5 |
N1—C10—S1 | 114.79 (12) | H4C—C13—H4A | 109.5 |
C9—C10—S1 | 120.58 (12) | C4—C13—H4B | 109.5 |
C3—C2—C1 | 121.05 (14) | H4C—C13—H4B | 109.5 |
C3—C2—H2 | 119.5 | H4A—C13—H4B | 109.5 |
C1—C2—H2 | 119.5 | C11—C12—N1 | 116.45 (19) |
C7—C8—C9 | 122.88 (16) | C11—C12—H12 | 121.8 |
C7—C8—H8 | 122.7 (12) | N1—C12—H12 | 121.8 |
C9—C8—H8 | 114.4 (13) | C12—C11—S1 | 109.87 (15) |
C2—C3—C4 | 121.20 (15) | C12—C11—H11 | 125.1 |
C2—C3—H3 | 119.4 | S1—C11—H11 | 125.1 |
C2—C1—C7—C8 | 19.2 (2) | C7—C1—C6—C5 | 177.01 (15) |
C6—C1—C7—C8 | −159.68 (16) | C7—C8—C9—O1 | 9.7 (3) |
C12—N1—C10—C9 | 176.99 (16) | C7—C8—C9—C10 | −169.19 (15) |
C12—N1—C10—S1 | −0.58 (19) | N1—C10—C9—O1 | −172.68 (16) |
C11—S1—C10—N1 | 0.65 (14) | S1—C10—C9—O1 | 4.8 (2) |
C11—S1—C10—C9 | −177.02 (14) | N1—C10—C9—C8 | 6.3 (2) |
C6—C1—C2—C3 | 1.5 (2) | S1—C10—C9—C8 | −176.29 (12) |
C7—C1—C2—C3 | −177.40 (14) | C1—C6—C5—C4 | 0.6 (2) |
C1—C7—C8—C9 | 178.32 (14) | C3—C4—C5—C6 | 1.3 (2) |
C1—C2—C3—C4 | 0.3 (2) | C13—C4—C5—C6 | 179.72 (16) |
C5—C4—C3—C2 | −1.7 (2) | C10—N1—C12—C11 | 0.2 (2) |
C13—C4—C3—C2 | 179.84 (16) | N1—C12—C11—S1 | 0.3 (2) |
C2—C1—C6—C5 | −2.0 (2) | C10—S1—C11—C12 | −0.52 (15) |
Experimental details
Crystal data | |
Chemical formula | C13H11NOS |
Mr | 229.29 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 13.9486 (9), 11.1773 (8), 7.4579 (5) |
β (°) | 102.061 (4) |
V (Å3) | 1137.08 (13) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.26 |
Crystal size (mm) | 0.20 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 1999) |
Tmin, Tmax | 0.949, 0.949 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10320, 2808, 2070 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.666 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.118, 1.05 |
No. of reflections | 2808 |
No. of parameters | 153 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.24 |
Computer programs: APEX2 (Bruker, 2004), APEX2 and SAINT-Plus (Bruker, 2004), SAINT-Plus and XPREP (Bruker, 2004), SIR92 (Altomare et al., 1993), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
References
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Molecules which possess both sulphur and nitrogen atoms exhibit universal and crucial roles in living organisms (Fontecave et al., 2003), with thiazoles and their derivatives being an important class of heterocyclic compounds (Kleemann et al., 2001). Analogues of these are present in several drugs with a wide range of biological properties, such as antibacterial (Bharti et al., 2010), antiviral (Bell et al., 1995) and anticancer (Cortes et al., 2007). Our research has been focused towards finding new therapeutic agents, using thiazole compounds. Similarly, several α,β-unsaturated ketones have been found to have good biological activity. Therefore, in this paper we report both the thiazole and α,β-unsaturated ketone moieties in one molecule. The title compound (Fig. 1) exists in an E configuration with respect to the C7-C8 double bond. Both phenyl and thiazole rings adopt planar orientations and there is no classical hydrogen bonding found.