organic compounds
b]pyridine
of 2-(2-methylphenyl)-1,3-thiazolo[4,5-aCornea Research Chair, Department of Optometry, College of Applied Medical Sciences, King Saud University, PO Box 10219, Riyadh 11433, Saudi Arabia, and bSchool of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, Wales
*Correspondence e-mail: gelhiti@ksu.edu.sa', kariukib@cardiff.ac.uk
In the title molecule, C13H10N2S, the dihedral angle between the planes through the non-H atoms of the methylbenzene and thiazolopyridine groups is 36.61 (5)°. In the crystal, the thiazolopyridine groups of inversion-related molecules overlap, with a minimum ring-centroid separation of 3.6721 (9) Å. Furthermore, the methylbenzene groups from neighbouring molecules interact edge-to-face at an angle of 71.66 (5)°. In addition, weak C—H⋯ N hydrogen bonds form chains exending along [100].
Keywords: crystal structure; thiazolopyridine; hydrogen bonding.
CCDC reference: 1410117
1. Related literature
Various thiazolopyridine derivatives have been synthesised using different synthetic methods, see: Luo et al. (2015); Chaban et al. (2013); Leysen et al. (1984); Lee et al. (2010); Rao et al. (2009); Johnson et al. (2006); El-Hiti (2003); Smith et al. (1994, 1995). For the X-ray crystal structures of related compounds, see: El-Hiti et al. (2014; 2015); Yu et al. (2007).
2. Experimental
2.1. Crystal data
|
2.3. Refinement
|
Data collection: CrysAlis PRO (Agilent, 2014); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS2013 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: WinGX (Farrugia, 2012) and CHEMDRAW Ultra (Cambridge Soft, 2001).
Supporting information
CCDC reference: 1410117
https://doi.org/10.1107/S2056989015012797/zs2340sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989015012797/zs2340Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989015012797/zs2340Isup3.cml
Various thiazolopyridine derivatives have been synthesised using different synthetic methods (Luo et al., 2015; Chaban et al., 2013; Leysen et al., 1984; Lee et al., 2010; Rao et al., 2009; Johnson et al., 2006; El-Hiti, 2003; Smith et al., 1994, 1995). We have synthesized 2-(2-methylphenyl)-1,3-thiazolo[4,5-b]pyridine in high yield (El-Hiti, 2003; Smith et al., 1995) as a continuation of our research directed towards the development of novel synthetic routes towards heterocyclic derivatives. The X-ray structures for related compounds have been reported previously (El-Hiti et al., 2014, 2015; Yu et al., 2007).
2-(2-Methylphenyl)-1,3-thiazolo[4,5-b]pyridine was obtained in 89% yield from acid hydrolysis of 3-(diisopropylaminothiocarbonylthio)-2-(2-methylbenzoylamino)pyridine under reflux (Smith et al., 1995) or in 61% yield from the reaction of 3-(diisopropylaminothiocarbonylthio)-2-aminopyridine with 2-methylbenzoic acid in the presence of phosphorus oxychloride under reflux (El-Hiti, 2003). Crystallization from diethyl ether gave colourless crystals of the title compound. The NMR and mass spectral data for this compound were consistent with those reported (Smith et al., 1995).
H atoms were positioned geometrically and refined using a riding model with Uiso(H) constrained to be 1.2 times Ueq for the atom it is bonded to except for methyl groups where it was 1.5 times with
about the C—C bond.The
consists of one molecule of C13H10N2S (Fig. 1). In the molecule, the angle between the least squares planes through the nonhydrogen atoms of the methylphenyl and thiazolopyridine groups is 36.61 (5)°. In the crystal (Fig 2), the thiazolopyridine groups of adjacent inversion-related molecules are parallel and overlap fully with a minimum ring centroid separation of 3.6721 (9) Å between the 5-membered and 6-membered components of the groups (related by -x, -y +1.-z +1) . Methylphenyl groups from neighbouring molecules interact in an edge-to-face fashion with a dihedral angle between the rings of 71.66 (5)°. A weak intermolecular C4—H···N2i contact (Table 1) forms chains of molecules extending along [100].Various thiazolopyridine derivatives have been synthesised using different synthetic methods (Luo et al., 2015; Chaban et al., 2013; Leysen et al., 1984; Lee et al., 2010; Rao et al., 2009; Johnson et al., 2006; El-Hiti, 2003; Smith et al., 1994, 1995). We have synthesized 2-(2-methylphenyl)-1,3-thiazolo[4,5-b]pyridine in high yield (El-Hiti, 2003; Smith et al., 1995) as a continuation of our research directed towards the development of novel synthetic routes towards heterocyclic derivatives. The X-ray structures for related compounds have been reported previously (El-Hiti et al., 2014, 2015; Yu et al., 2007).
The
consists of one molecule of C13H10N2S (Fig. 1). In the molecule, the angle between the least squares planes through the nonhydrogen atoms of the methylphenyl and thiazolopyridine groups is 36.61 (5)°. In the crystal (Fig 2), the thiazolopyridine groups of adjacent inversion-related molecules are parallel and overlap fully with a minimum ring centroid separation of 3.6721 (9) Å between the 5-membered and 6-membered components of the groups (related by -x, -y +1.-z +1) . Methylphenyl groups from neighbouring molecules interact in an edge-to-face fashion with a dihedral angle between the rings of 71.66 (5)°. A weak intermolecular C4—H···N2i contact (Table 1) forms chains of molecules extending along [100].Various thiazolopyridine derivatives have been synthesised using different synthetic methods, see: Luo et al. (2015); Chaban et al. (2013); Leysen et al. (1984); Lee et al. (2010); Rao et al. (2009); Johnson et al. (2006); El-Hiti (2003); Smith et al. (1994, 1995). For the X-ray crystal structures of related compounds, see: El-Hiti et al. (2014; 2015); Yu et al. (2007).
2-(2-Methylphenyl)-1,3-thiazolo[4,5-b]pyridine was obtained in 89% yield from acid hydrolysis of 3-(diisopropylaminothiocarbonylthio)-2-(2-methylbenzoylamino)pyridine under reflux (Smith et al., 1995) or in 61% yield from the reaction of 3-(diisopropylaminothiocarbonylthio)-2-aminopyridine with 2-methylbenzoic acid in the presence of phosphorus oxychloride under reflux (El-Hiti, 2003). Crystallization from diethyl ether gave colourless crystals of the title compound. The NMR and mass spectral data for this compound were consistent with those reported (Smith et al., 1995).
detailsH atoms were positioned geometrically and refined using a riding model with Uiso(H) constrained to be 1.2 times Ueq for the atom it is bonded to except for methyl groups where it was 1.5 times with
about the C—C bond.Data collection: CrysAlis PRO (Agilent, 2014); cell
CrysAlis PRO (Agilent, 2014); data reduction: CrysAlis PRO (Agilent, 2014); program(s) used to solve structure: SHELXS2013 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: WinGX (Farrugia, 2012) and CHEMDRAW Ultra (Cambridge Soft, 2001).Fig. 1. The asymmetric unit of C13H10N2O with atom labels and 50% probability displacement ellipsoids for non-hydrogen atoms. | |
Fig. 2. The crystal packing viewed along the a axis of the unit cell. |
C13H10N2S | Dx = 1.348 Mg m−3 |
Mr = 226.29 | Cu Kα radiation, λ = 1.54184 Å |
Orthorhombic, Pbca | Cell parameters from 3613 reflections |
a = 7.6702 (1) Å | θ = 3.8–74.0° |
b = 12.6492 (3) Å | µ = 2.33 mm−1 |
c = 22.9821 (5) Å | T = 293 K |
V = 2229.77 (8) Å3 | Block, colourless |
Z = 8 | 0.26 × 0.17 × 0.05 mm |
F(000) = 944 |
Agilent SuperNova Dual Source diffractometer with an Atlas CCD detector | 1959 reflections with I > 2σ(I) |
ω scans | Rint = 0.019 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2014) | θmax = 74.0°, θmin = 3.9° |
Tmin = 0.960, Tmax = 0.989 | h = −9→6 |
7263 measured reflections | k = −12→15 |
2234 independent reflections | l = −28→27 |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.035 | H-atom parameters constrained |
wR(F2) = 0.106 | w = 1/[σ2(Fo2) + (0.0633P)2 + 0.2883P] where P = (Fo2 + 2Fc2)/3 |
S = 1.03 | (Δ/σ)max = 0.001 |
2234 reflections | Δρmax = 0.17 e Å−3 |
146 parameters | Δρmin = −0.27 e Å−3 |
C13H10N2S | V = 2229.77 (8) Å3 |
Mr = 226.29 | Z = 8 |
Orthorhombic, Pbca | Cu Kα radiation |
a = 7.6702 (1) Å | µ = 2.33 mm−1 |
b = 12.6492 (3) Å | T = 293 K |
c = 22.9821 (5) Å | 0.26 × 0.17 × 0.05 mm |
Agilent SuperNova Dual Source diffractometer with an Atlas CCD detector | 2234 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2014) | 1959 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.989 | Rint = 0.019 |
7263 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 0 restraints |
wR(F2) = 0.106 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.17 e Å−3 |
2234 reflections | Δρmin = −0.27 e Å−3 |
146 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 | ||
C1 | 0.21789 (18) | 0.50224 (11) | 0.38130 (6) | 0.0457 (3) | |
C2 | 0.03446 (19) | 0.40362 (11) | 0.43105 (6) | 0.0496 (3) | |
C3 | −0.07616 (19) | 0.48902 (12) | 0.42082 (6) | 0.0527 (3) | |
C4 | −0.1768 (3) | 0.31679 (15) | 0.48019 (8) | 0.0706 (5) | |
H4 | −0.2140 | 0.2579 | 0.5010 | 0.085* | |
C5 | −0.2954 (2) | 0.39752 (16) | 0.47141 (8) | 0.0705 (5) | |
H5 | −0.4082 | 0.3917 | 0.4859 | 0.085* | |
C6 | −0.2461 (2) | 0.48645 (16) | 0.44130 (8) | 0.0670 (4) | |
H6 | −0.3229 | 0.5422 | 0.4350 | 0.080* | |
C7 | 0.37539 (18) | 0.54080 (11) | 0.35116 (6) | 0.0470 (3) | |
C8 | 0.48582 (19) | 0.47301 (13) | 0.31980 (6) | 0.0527 (3) | |
C9 | 0.6265 (2) | 0.51824 (15) | 0.29070 (7) | 0.0644 (4) | |
H9 | 0.6997 | 0.4749 | 0.2690 | 0.077* | |
C10 | 0.6608 (2) | 0.62498 (15) | 0.29292 (8) | 0.0675 (4) | |
H10 | 0.7555 | 0.6528 | 0.2728 | 0.081* | |
C11 | 0.5547 (2) | 0.69041 (14) | 0.32501 (8) | 0.0664 (4) | |
H11 | 0.5787 | 0.7623 | 0.3274 | 0.080* | |
C12 | 0.4124 (2) | 0.64853 (12) | 0.35362 (7) | 0.0563 (4) | |
H12 | 0.3399 | 0.6930 | 0.3749 | 0.068* | |
C13 | 0.4583 (3) | 0.35571 (14) | 0.31637 (9) | 0.0730 (5) | |
H13A | 0.5337 | 0.3264 | 0.2872 | 0.109* | |
H13B | 0.3391 | 0.3414 | 0.3064 | 0.109* | |
H13C | 0.4845 | 0.3243 | 0.3534 | 0.109* | |
N1 | 0.20074 (17) | 0.41287 (9) | 0.40814 (5) | 0.0514 (3) | |
N2 | −0.0128 (2) | 0.31754 (12) | 0.46089 (7) | 0.0659 (4) | |
S1 | 0.03278 (5) | 0.58334 (3) | 0.38069 (2) | 0.06317 (17) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0444 (7) | 0.0476 (7) | 0.0451 (7) | 0.0040 (5) | −0.0043 (5) | −0.0027 (5) |
C2 | 0.0486 (8) | 0.0529 (8) | 0.0471 (7) | 0.0024 (6) | 0.0008 (6) | −0.0006 (6) |
C3 | 0.0452 (7) | 0.0625 (8) | 0.0502 (7) | 0.0045 (6) | −0.0035 (6) | 0.0007 (6) |
C4 | 0.0698 (10) | 0.0746 (11) | 0.0673 (10) | −0.0082 (8) | 0.0169 (8) | 0.0047 (8) |
C5 | 0.0526 (9) | 0.0951 (13) | 0.0637 (9) | −0.0068 (8) | 0.0099 (7) | −0.0010 (9) |
C6 | 0.0474 (8) | 0.0870 (12) | 0.0667 (9) | 0.0106 (8) | 0.0017 (7) | 0.0036 (8) |
C7 | 0.0441 (7) | 0.0502 (7) | 0.0468 (7) | 0.0005 (6) | −0.0055 (5) | 0.0007 (5) |
C8 | 0.0497 (7) | 0.0567 (8) | 0.0517 (8) | 0.0026 (6) | −0.0004 (6) | −0.0013 (6) |
C9 | 0.0562 (9) | 0.0778 (11) | 0.0591 (9) | 0.0018 (8) | 0.0097 (7) | −0.0019 (8) |
C10 | 0.0600 (9) | 0.0795 (11) | 0.0630 (9) | −0.0143 (8) | 0.0057 (7) | 0.0089 (8) |
C11 | 0.0685 (10) | 0.0609 (9) | 0.0700 (10) | −0.0140 (8) | −0.0009 (8) | 0.0052 (8) |
C12 | 0.0555 (8) | 0.0530 (8) | 0.0605 (8) | −0.0010 (7) | −0.0038 (7) | −0.0009 (6) |
C13 | 0.0769 (12) | 0.0564 (9) | 0.0856 (12) | 0.0054 (8) | 0.0211 (9) | −0.0104 (9) |
N1 | 0.0490 (7) | 0.0508 (7) | 0.0544 (7) | 0.0062 (5) | 0.0033 (5) | 0.0039 (5) |
N2 | 0.0665 (8) | 0.0622 (8) | 0.0691 (8) | 0.0026 (6) | 0.0133 (7) | 0.0116 (7) |
S1 | 0.0491 (3) | 0.0616 (3) | 0.0789 (3) | 0.01227 (16) | 0.00281 (17) | 0.01779 (18) |
C1—N1 | 1.2944 (18) | C7—C12 | 1.393 (2) |
C1—C7 | 1.476 (2) | C7—C8 | 1.404 (2) |
C1—S1 | 1.7518 (14) | C8—C9 | 1.392 (2) |
C2—N2 | 1.337 (2) | C8—C13 | 1.501 (2) |
C2—N1 | 1.3848 (19) | C9—C10 | 1.377 (3) |
C2—C3 | 1.394 (2) | C9—H9 | 0.9300 |
C3—C6 | 1.386 (2) | C10—C11 | 1.375 (3) |
C3—S1 | 1.7240 (16) | C10—H10 | 0.9300 |
C4—N2 | 1.334 (2) | C11—C12 | 1.380 (2) |
C4—C5 | 1.382 (3) | C11—H11 | 0.9300 |
C4—H4 | 0.9300 | C12—H12 | 0.9300 |
C5—C6 | 1.374 (3) | C13—H13A | 0.9600 |
C5—H5 | 0.9300 | C13—H13B | 0.9600 |
C6—H6 | 0.9300 | C13—H13C | 0.9600 |
N1—C1—C7 | 126.56 (13) | C7—C8—C13 | 123.08 (14) |
N1—C1—S1 | 115.65 (11) | C10—C9—C8 | 122.24 (16) |
C7—C1—S1 | 117.79 (10) | C10—C9—H9 | 118.9 |
N2—C2—N1 | 120.92 (13) | C8—C9—H9 | 118.9 |
N2—C2—C3 | 123.54 (14) | C11—C10—C9 | 119.80 (15) |
N1—C2—C3 | 115.54 (13) | C11—C10—H10 | 120.1 |
C6—C3—C2 | 119.80 (15) | C9—C10—H10 | 120.1 |
C6—C3—S1 | 130.81 (13) | C10—C11—C12 | 119.51 (16) |
C2—C3—S1 | 109.37 (11) | C10—C11—H11 | 120.2 |
N2—C4—C5 | 124.51 (17) | C12—C11—H11 | 120.2 |
N2—C4—H4 | 117.7 | C11—C12—C7 | 121.16 (16) |
C5—C4—H4 | 117.7 | C11—C12—H12 | 119.4 |
C6—C5—C4 | 119.85 (16) | C7—C12—H12 | 119.4 |
C6—C5—H5 | 120.1 | C8—C13—H13A | 109.5 |
C4—C5—H5 | 120.1 | C8—C13—H13B | 109.5 |
C5—C6—C3 | 116.67 (17) | H13A—C13—H13B | 109.5 |
C5—C6—H6 | 121.7 | C8—C13—H13C | 109.5 |
C3—C6—H6 | 121.7 | H13A—C13—H13C | 109.5 |
C12—C7—C8 | 119.67 (14) | H13B—C13—H13C | 109.5 |
C12—C7—C1 | 118.11 (13) | C1—N1—C2 | 110.40 (12) |
C8—C7—C1 | 122.21 (13) | C4—N2—C2 | 115.61 (15) |
C9—C8—C7 | 117.58 (15) | C3—S1—C1 | 89.04 (7) |
C9—C8—C13 | 119.33 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4···N2i | 0.93 | 2.63 | 3.371 (2) | 137 |
Symmetry code: (i) x−1/2, −y+1/2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4···N2i | 0.93 | 2.63 | 3.371 (2) | 137 |
Symmetry code: (i) x−1/2, −y+1/2, −z+1. |
Acknowledgements
The authors extend their appreciation to the British Council, Riyadh, Saudi Arabia, for funding this research and to Cardiff University for continued support.
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