organic compounds
S-1,3-Benzothiazol-2-yl (2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)ethanethioate
aMaterials Chemistry Laboratory, Department of Chemistry, GC University, Lahore, Pakistan
*Correspondence e-mail: mnachemist@hotmail.com
The title compound, C13H10N4O2S3, is an acylating agent which belongs to the thiazole class of organic compounds. The dihedral angle between the benzene and thiazole rings, which are fused to each other, is 1.2 (2)° so the overall benzothiazole system is almost planar. Intermolecular N—H⋯N interactions and weak C—H⋯O interactions between symmetry-related molecules stabilize the forming three different ring motifs [R22(8), R22(10) and R22(16)] in three dimensions.
Related literature
For background literature, see: Khanna et al. (1999). For related structures, see: Radha (1985); Laurent & Durant (1981). For graph set notation, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
10.1107/S1600536809025616/pv2172sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809025616/pv2172Isup2.hkl
The compound was dissolved in methanol and ethyl acetate mixture (20:80 v/v %). The light yellow prismatic crystals were obtained after two days.
The H-atoms were refined geometrically and treated as riding atoms with C—H distances, 0.93 and 0.96 Å for aryl and methyl groups, respectively, and N–H = 0.86 Å with Uiso(H) = 1.2 times aromatic C and N atoms and Uiso(H) = 1.5 times methyl C atoms.
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).C13H10N4O2S3 | F(000) = 720 |
Mr = 350.43 | Dx = 1.526 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2744 reflections |
a = 13.9725 (9) Å | θ = 2.4–22.8° |
b = 5.0156 (3) Å | µ = 0.50 mm−1 |
c = 21.7664 (14) Å | T = 296 K |
β = 90.001 (3)° | Prism, light yellow |
V = 1525.40 (17) Å3 | 0.31 × 0.11 × 0.07 mm |
Z = 4 |
Bruker Kappa APEXII CCD diffractometer | 3829 independent reflections |
Radiation source: fine-focus sealed tube | 2096 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.054 |
ϕ and ω scans | θmax = 28.4°, θmin = 1.5° |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | h = −18→18 |
Tmin = 0.941, Tmax = 0.972 | k = −6→6 |
16828 measured reflections | l = −29→28 |
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)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.145 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0695P)2] where P = (Fo2 + 2Fc2)/3 |
3829 reflections | (Δ/σ)max = 0.001 |
200 parameters | Δρmax = 0.35 e Å−3 |
0 restraints | Δρmin = −0.34 e Å−3 |
C13H10N4O2S3 | V = 1525.40 (17) Å3 |
Mr = 350.43 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 13.9725 (9) Å | µ = 0.50 mm−1 |
b = 5.0156 (3) Å | T = 296 K |
c = 21.7664 (14) Å | 0.31 × 0.11 × 0.07 mm |
β = 90.001 (3)° |
Bruker Kappa APEXII CCD diffractometer | 3829 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | 2096 reflections with I > 2σ(I) |
Tmin = 0.941, Tmax = 0.972 | Rint = 0.054 |
16828 measured reflections |
R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.145 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.35 e Å−3 |
3829 reflections | Δρmin = −0.34 e Å−3 |
200 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 | ||
S1 | 1.09909 (5) | 0.53325 (15) | 0.33403 (3) | 0.0473 (2) | |
S2 | 0.82219 (5) | 1.20705 (16) | 0.47275 (4) | 0.0481 (2) | |
S3 | 0.62042 (6) | 1.30442 (19) | 0.51641 (4) | 0.0658 (3) | |
O1 | 0.73807 (14) | 0.7981 (4) | 0.41758 (10) | 0.0515 (6) | |
O2 | 0.76884 (15) | 1.2729 (4) | 0.32595 (10) | 0.0599 (6) | |
N1 | 0.97196 (15) | 0.6544 (4) | 0.41510 (10) | 0.0342 (5) | |
N2 | 0.85575 (16) | 1.1371 (5) | 0.31772 (11) | 0.0457 (6) | |
N3 | 1.07870 (17) | 0.3179 (5) | 0.44609 (11) | 0.0508 (7) | |
H3A | 1.0515 | 0.3001 | 0.4813 | 0.061* | |
H3B | 1.1273 | 0.2209 | 0.4368 | 0.061* | |
N4 | 0.73303 (16) | 0.9626 (5) | 0.56704 (11) | 0.0468 (6) | |
C1 | 1.04521 (18) | 0.4975 (5) | 0.40561 (12) | 0.0352 (6) | |
C2 | 1.0159 (2) | 0.7693 (5) | 0.31617 (13) | 0.0428 (7) | |
H1 | 1.0129 | 0.8598 | 0.2789 | 0.051* | |
C3 | 0.95521 (18) | 0.8065 (5) | 0.36329 (12) | 0.0340 (6) | |
C4 | 0.87134 (19) | 0.9811 (5) | 0.36324 (12) | 0.0370 (6) | |
C5 | 0.80041 (19) | 0.9594 (5) | 0.41574 (13) | 0.0379 (7) | |
C6 | 0.72758 (19) | 1.1345 (6) | 0.52336 (14) | 0.0427 (7) | |
C7 | 0.5768 (2) | 1.1236 (6) | 0.57791 (14) | 0.0516 (8) | |
C8 | 0.6472 (2) | 0.9518 (6) | 0.59907 (14) | 0.0451 (7) | |
C9 | 0.6272 (2) | 0.7821 (7) | 0.64769 (16) | 0.0641 (10) | |
H10 | 0.6733 | 0.6639 | 0.6622 | 0.077* | |
C10 | 0.5376 (3) | 0.7925 (8) | 0.67398 (17) | 0.0729 (11) | |
H9 | 0.5232 | 0.6798 | 0.7066 | 0.088* | |
C11 | 0.4697 (3) | 0.9652 (8) | 0.65302 (19) | 0.0755 (11) | |
H8 | 0.4099 | 0.9676 | 0.6719 | 0.091* | |
C12 | 0.4867 (2) | 1.1338 (8) | 0.60535 (19) | 0.0762 (11) | |
H7 | 0.4400 | 1.2516 | 0.5916 | 0.091* | |
C13 | 0.7520 (3) | 1.4460 (6) | 0.27606 (16) | 0.0641 (10) | |
H11A | 0.8078 | 1.5537 | 0.2691 | 0.096* | |
H11B | 0.6985 | 1.5590 | 0.2852 | 0.096* | |
H11C | 0.7384 | 1.3431 | 0.2399 | 0.096* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0469 (4) | 0.0640 (5) | 0.0309 (4) | 0.0148 (4) | 0.0129 (3) | 0.0034 (4) |
S2 | 0.0494 (5) | 0.0563 (5) | 0.0387 (5) | −0.0072 (4) | 0.0129 (4) | −0.0009 (4) |
S3 | 0.0557 (5) | 0.0812 (6) | 0.0605 (6) | 0.0223 (4) | 0.0143 (4) | 0.0168 (5) |
O1 | 0.0441 (12) | 0.0557 (12) | 0.0547 (15) | −0.0042 (10) | 0.0139 (10) | −0.0033 (10) |
O2 | 0.0565 (13) | 0.0793 (15) | 0.0439 (14) | 0.0303 (11) | 0.0118 (11) | 0.0226 (11) |
N1 | 0.0349 (12) | 0.0442 (13) | 0.0236 (13) | 0.0022 (10) | 0.0041 (10) | 0.0040 (10) |
N2 | 0.0469 (14) | 0.0550 (14) | 0.0353 (15) | 0.0137 (12) | 0.0067 (11) | 0.0056 (12) |
N3 | 0.0567 (16) | 0.0613 (15) | 0.0342 (15) | 0.0246 (13) | 0.0114 (12) | 0.0107 (13) |
N4 | 0.0419 (14) | 0.0621 (15) | 0.0363 (15) | 0.0042 (12) | 0.0108 (11) | 0.0046 (13) |
C1 | 0.0354 (14) | 0.0429 (15) | 0.0274 (15) | −0.0001 (12) | 0.0043 (12) | −0.0033 (13) |
C2 | 0.0465 (16) | 0.0536 (17) | 0.0283 (16) | 0.0077 (13) | 0.0091 (13) | 0.0076 (13) |
C3 | 0.0369 (14) | 0.0399 (14) | 0.0251 (15) | −0.0006 (12) | 0.0031 (12) | 0.0006 (12) |
C4 | 0.0399 (15) | 0.0444 (16) | 0.0266 (16) | 0.0013 (12) | 0.0046 (12) | 0.0021 (13) |
C5 | 0.0359 (14) | 0.0439 (16) | 0.0339 (17) | 0.0095 (13) | 0.0040 (12) | 0.0060 (13) |
C6 | 0.0391 (15) | 0.0539 (17) | 0.0351 (17) | 0.0019 (13) | 0.0079 (13) | −0.0053 (14) |
C7 | 0.0427 (16) | 0.069 (2) | 0.043 (2) | −0.0017 (15) | 0.0105 (14) | −0.0055 (16) |
C8 | 0.0426 (16) | 0.0606 (19) | 0.0320 (17) | −0.0018 (14) | 0.0081 (13) | −0.0045 (15) |
C9 | 0.060 (2) | 0.084 (2) | 0.049 (2) | −0.0032 (18) | 0.0113 (17) | 0.0124 (19) |
C10 | 0.077 (3) | 0.095 (3) | 0.046 (2) | −0.021 (2) | 0.020 (2) | 0.006 (2) |
C11 | 0.052 (2) | 0.109 (3) | 0.066 (3) | −0.010 (2) | 0.0231 (19) | −0.011 (2) |
C12 | 0.047 (2) | 0.109 (3) | 0.072 (3) | 0.013 (2) | 0.0178 (19) | 0.001 (2) |
C13 | 0.075 (2) | 0.066 (2) | 0.052 (2) | 0.0228 (18) | −0.0030 (18) | 0.0160 (18) |
S1—C2 | 1.704 (3) | C2—C3 | 1.344 (4) |
S1—C1 | 1.740 (3) | C2—H1 | 0.9300 |
S2—C6 | 1.759 (3) | C3—C4 | 1.463 (4) |
S2—C5 | 1.782 (3) | C4—C5 | 1.517 (3) |
S3—C7 | 1.728 (3) | C7—C8 | 1.387 (4) |
S3—C6 | 1.729 (3) | C7—C12 | 1.394 (4) |
O1—C5 | 1.190 (3) | C8—C9 | 1.387 (4) |
O2—N2 | 1.404 (3) | C9—C10 | 1.378 (5) |
O2—C13 | 1.410 (4) | C9—H10 | 0.9300 |
N1—C1 | 1.308 (3) | C10—C11 | 1.364 (5) |
N1—C3 | 1.382 (3) | C10—H9 | 0.9300 |
N2—C4 | 1.281 (3) | C11—C12 | 1.360 (5) |
N3—C1 | 1.344 (3) | C11—H8 | 0.9300 |
N3—H3A | 0.8600 | C12—H7 | 0.9300 |
N3—H3B | 0.8600 | C13—H11A | 0.9600 |
N4—C6 | 1.286 (4) | C13—H11B | 0.9600 |
N4—C8 | 1.388 (3) | C13—H11C | 0.9600 |
C2—S1—C1 | 88.90 (13) | N4—C6—S2 | 123.9 (2) |
C6—S2—C5 | 99.42 (13) | S3—C6—S2 | 119.61 (18) |
C7—S3—C6 | 88.79 (15) | C8—C7—C12 | 121.4 (3) |
N2—O2—C13 | 110.1 (2) | C8—C7—S3 | 109.5 (2) |
C1—N1—C3 | 109.6 (2) | C12—C7—S3 | 129.1 (3) |
C4—N2—O2 | 110.2 (2) | C9—C8—C7 | 119.5 (3) |
C1—N3—H3A | 120.0 | C9—C8—N4 | 125.6 (3) |
C1—N3—H3B | 120.0 | C7—C8—N4 | 115.0 (3) |
H3A—N3—H3B | 120.0 | C10—C9—C8 | 118.5 (3) |
C6—N4—C8 | 110.3 (2) | C10—C9—H10 | 120.8 |
N1—C1—N3 | 124.9 (2) | C8—C9—H10 | 120.8 |
N1—C1—S1 | 114.7 (2) | C11—C10—C9 | 121.2 (4) |
N3—C1—S1 | 120.37 (19) | C11—C10—H9 | 119.4 |
C3—C2—S1 | 110.7 (2) | C9—C10—H9 | 119.4 |
C3—C2—H1 | 124.7 | C12—C11—C10 | 121.9 (3) |
S1—C2—H1 | 124.7 | C12—C11—H8 | 119.1 |
C2—C3—N1 | 116.1 (2) | C10—C11—H8 | 119.1 |
C2—C3—C4 | 126.0 (2) | C11—C12—C7 | 117.5 (4) |
N1—C3—C4 | 117.8 (2) | C11—C12—H7 | 121.2 |
N2—C4—C3 | 120.2 (2) | C7—C12—H7 | 121.2 |
N2—C4—C5 | 121.0 (2) | O2—C13—H11A | 109.5 |
C3—C4—C5 | 118.7 (2) | O2—C13—H11B | 109.5 |
O1—C5—C4 | 123.6 (3) | H11A—C13—H11B | 109.5 |
O1—C5—S2 | 125.2 (2) | O2—C13—H11C | 109.5 |
C4—C5—S2 | 111.29 (19) | H11A—C13—H11C | 109.5 |
N4—C6—S3 | 116.5 (2) | H11B—C13—H11C | 109.5 |
C13—O2—N2—C4 | 179.6 (3) | C8—N4—C6—S3 | 0.8 (3) |
C3—N1—C1—N3 | −177.9 (3) | C8—N4—C6—S2 | 179.6 (2) |
C3—N1—C1—S1 | 1.6 (3) | C7—S3—C6—N4 | −0.9 (3) |
C2—S1—C1—N1 | −1.1 (2) | C7—S3—C6—S2 | −179.7 (2) |
C2—S1—C1—N3 | 178.4 (2) | C5—S2—C6—N4 | 87.6 (3) |
C1—S1—C2—C3 | 0.3 (2) | C5—S2—C6—S3 | −93.60 (19) |
S1—C2—C3—N1 | 0.6 (3) | C6—S3—C7—C8 | 0.7 (2) |
S1—C2—C3—C4 | −176.0 (2) | C6—S3—C7—C12 | −179.4 (4) |
C1—N1—C3—C2 | −1.4 (3) | C12—C7—C8—C9 | 1.4 (5) |
C1—N1—C3—C4 | 175.5 (2) | S3—C7—C8—C9 | −178.6 (3) |
O2—N2—C4—C3 | 176.5 (2) | C12—C7—C8—N4 | 179.6 (3) |
O2—N2—C4—C5 | 0.7 (4) | S3—C7—C8—N4 | −0.4 (3) |
C2—C3—C4—N2 | −7.4 (4) | C6—N4—C8—C9 | 177.9 (3) |
N1—C3—C4—N2 | 176.1 (2) | C6—N4—C8—C7 | −0.3 (4) |
C2—C3—C4—C5 | 168.5 (3) | C7—C8—C9—C10 | −0.8 (5) |
N1—C3—C4—C5 | −8.1 (4) | N4—C8—C9—C10 | −178.8 (3) |
N2—C4—C5—O1 | 92.6 (3) | C8—C9—C10—C11 | 0.0 (6) |
C3—C4—C5—O1 | −83.3 (3) | C9—C10—C11—C12 | 0.2 (6) |
N2—C4—C5—S2 | −86.7 (3) | C10—C11—C12—C7 | 0.4 (6) |
C3—C4—C5—S2 | 97.4 (2) | C8—C7—C12—C11 | −1.2 (6) |
C6—S2—C5—O1 | −1.4 (3) | S3—C7—C12—C11 | 178.8 (3) |
C6—S2—C5—C4 | 177.9 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···N1i | 0.86 | 2.29 | 3.106 (3) | 158 |
N3—H3B···N4i | 0.86 | 2.16 | 2.997 (3) | 165 |
C12—H7···O1ii | 0.93 | 2.51 | 3.198 (3) | 131 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C13H10N4O2S3 |
Mr | 350.43 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 13.9725 (9), 5.0156 (3), 21.7664 (14) |
β (°) | 90.001 (3) |
V (Å3) | 1525.40 (17) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.50 |
Crystal size (mm) | 0.31 × 0.11 × 0.07 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2007) |
Tmin, Tmax | 0.941, 0.972 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16828, 3829, 2096 |
Rint | 0.054 |
(sin θ/λ)max (Å−1) | 0.670 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.145, 1.03 |
No. of reflections | 3829 |
No. of parameters | 200 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.35, −0.34 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···N1i | 0.86 | 2.29 | 3.106 (3) | 158 |
N3—H3B···N4i | 0.86 | 2.16 | 2.997 (3) | 165 |
C12—H7···O1ii | 0.93 | 2.51 | 3.198 (3) | 131 |
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) −x+1, −y+2, −z+1. |
Acknowledgements
The authors acknowledge the Higher Education Commission of Pakistan for providing a grant to the Materials Chemistry Laboratory at GC University, Lahore, Pakistan. The title compound was kindly provided by Pharmagen Ltd, Lahore, Pakistan.
References
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The title compound, (I), is a standard acylating agent for the synthesis of different cephalosporins derivatives (Khanna et al., 1999).
The title compound (Fig. 1) is composed of two components, a benzothiazole and an acyl group having 2-amino thiazole moiety. The N3 atoms of 2-aminothiazole moieties of molecules of (I) lying about inversion centers form intermolecular hydrogen bonds of the type N–H···N with N1 and N4 atoms resulting in dimers and form 8 and 10-membered rings which could be expressed in graph set notation as R22(8) and R22(10) motifs (Bernstein et al., 1995). In addition, there is a rather weak C–H···O type interaction, resulting in an R22(16) motif about inversion centers. The hydrogen bonding geometry is presented in Table 1 and Fig. 2. The crystal structures of compounds related to (I) have been reported (Radha, 1985; Laurent & Durant, 1981) .