organic compounds
N-(propan-2-ylcarbamothioyl)benzamide
ofaDepartment of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA, bDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, cChemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England, dChemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt, eChemistry Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt, and fKirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq
*Correspondence e-mail: shaabankamel@yahoo.com
In the 11H14N2OS, the six atoms of the central C2N2OS residue are coplanar (r.m.s. deviation = 0.002 Å), which facilitates the formation of an intramolecular N—H⋯O hydrogen bond, which closes an S(6) loop. The terminal phenyl ring is inclined with respect to the central plane [dihedral angle = 42.10 (6)°]. The most prominent feature of the crystal packing is the formation of {⋯HNCS}2 synthons resulting in centrosymmetric dimers.
of the title compound, CKeywords: crystal structure; thiourea; conformation; hydrogen bonding.
CCDC reference: 1038725
1. Related literature
For use of thioureas as building blocks in the synthesis of various organic compounds, see: Burgeson et al. (2012); Vega-Pérez et al. (2012); Yao et al. (2012); Shantharam et al. (2013); Yang et al. (2013). For use of thiourea-containing compounds in medicinal applications, see: Rodriguez-Fernandez et al. (2005); Rauf et al. (2012).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: CrysAlis PRO (Agilent, 2014); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS2014 (Gruene et al., 2014); program(s) used to refine structure: SHELXL2014 (Gruene et al., 2014); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
CCDC reference: 1038725
https://doi.org/10.1107/S2056989014027133/tk5351sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989014027133/tk5351Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989014027133/tk5351Isup3.cml
Compounds containing thiourea linkage are very useful building blocks for the synthesis of a wide range of multiheterocyclic and macromolecular compounds. Thioureas have proved to be useful substances in drug research in recent years (Burgeson et al., 2012; Vega-Pérez et al., 2012; Yao et al., 2012; Shantharam et al., 2013; Yang et al., 2013). Symmetrical and unsymmetrical thioureas have shown anti-fungal activity against the plant pathogens like Penicillium expansum and Fusarium oxysporum (Rodriguez-Fernandez et al., 2005). Also, 1,3-dialkyl or diaryl thioureas exhibited significant anti-fungal activity against Pyricularia oryzae and Drechslera oryzae (Rauf et al., 2012). In light of this, and following to our on-going study in synthesis of bio-active molecules, we report here the synthesis and
of the title compound.In the structure of the title compound, Fig. 1, intramolecular N—H···O and intermolecular N—H···S interactions are noted (Table 1).
Freshly prepared benzoyl chloride 5 ml (0.043 mol) was added drop wise to a solution of 3.2 g (0.042 mol) of ammonium thiocyanate in 20 ml dry acetone with stirring. The reaction mixture was refluxed for 3 h. The obtained solid precipitate ammonium chloride was filtered off. The formed benzoyl isothiocyanate in the filtrate was added to a solution of 3.1 ml (0.0425 mol) of 2-amino-isopropane in 20 ml dry acetone. The reaction mixture was heated under reflux for 5 h, then poured into a beaker containing some ice cubes. The resulting precipitate was collected by filtration, washed several times with cold ethanol/water and purified by recrystallization from ethanol/dichloromethane mixture (1:1). Yield (63%); colourless solid, m.p 418 K.
Carbon-bound H-atoms were placed in calculated positions (C—H = 0.93 to 0.98 Å) and were included in the
in the riding model approximation, with Uiso(H) = 1.2–1.5Ueq(C). The hydrogen atoms attached to N1 and N2 were found from difference Fourier maps and were refined with the distance contratin N—H = 0.86±0.02 Å with unrestrained Uiso.Compounds containing thiourea linkage are very useful building blocks for the synthesis of a wide range of multiheterocyclic and macromolecular compounds. Thioureas have proved to be useful substances in drug research in recent years (Burgeson et al., 2012; Vega-Pérez et al., 2012; Yao et al., 2012; Shantharam et al., 2013; Yang et al., 2013). Symmetrical and unsymmetrical thioureas have shown anti-fungal activity against the plant pathogens like Penicillium expansum and Fusarium oxysporum (Rodriguez-Fernandez et al., 2005). Also, 1,3-dialkyl or diaryl thioureas exhibited significant anti-fungal activity against Pyricularia oryzae and Drechslera oryzae (Rauf et al., 2012). In light of this, and following to our on-going study in synthesis of bio-active molecules, we report here the synthesis and
of the title compound.In the structure of the title compound, Fig. 1, intramolecular N—H···O and intermolecular N—H···S interactions are noted (Table 1).
For use of thioureas as building blocks in the synthesis of various organic compounds, see: Burgeson et al. (2012); Vega-Pérez et al. (2012); Yao et al. (2012); Shantharam et al. (2013); Yang et al. (2013). For use of thiourea-containing compounds in medicinal applications, see: Rodriguez-Fernandez et al. (2005); Rauf et al. (2012).
Freshly prepared benzoyl chloride 5 ml (0.043 mol) was added drop wise to a solution of 3.2 g (0.042 mol) of ammonium thiocyanate in 20 ml dry acetone with stirring. The reaction mixture was refluxed for 3 h. The obtained solid precipitate ammonium chloride was filtered off. The formed benzoyl isothiocyanate in the filtrate was added to a solution of 3.1 ml (0.0425 mol) of 2-amino-isopropane in 20 ml dry acetone. The reaction mixture was heated under reflux for 5 h, then poured into a beaker containing some ice cubes. The resulting precipitate was collected by filtration, washed several times with cold ethanol/water and purified by recrystallization from ethanol/dichloromethane mixture (1:1). Yield (63%); colourless solid, m.p 418 K.
detailsCarbon-bound H-atoms were placed in calculated positions (C—H = 0.93 to 0.98 Å) and were included in the
in the riding model approximation, with Uiso(H) = 1.2–1.5Ueq(C). The hydrogen atoms attached to N1 and N2 were found from difference Fourier maps and were refined with the distance contratin N—H = 0.86±0.02 Å with unrestrained Uiso.Data collection: CrysAlis PRO (Agilent, 2014); cell
CrysAlis PRO (Agilent, 2014); data reduction: CrysAlis PRO (Agilent, 2014); program(s) used to solve structure: SHELXS2014 (Gruene et al., 2014); program(s) used to refine structure: SHELXL2014 (Gruene et al., 2014); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009).C11H14N2OS | F(000) = 472 |
Mr = 222.30 | Dx = 1.267 Mg m−3 |
Monoclinic, P21/c | Cu Kα radiation, λ = 1.54184 Å |
Hall symbol: -P 2ybc | Cell parameters from 1804 reflections |
a = 11.2147 (4) Å | θ = 4.0–71.4° |
b = 5.3988 (2) Å | µ = 2.27 mm−1 |
c = 19.6834 (7) Å | T = 293 K |
β = 102.031 (4)° | Prism, colourless |
V = 1165.57 (7) Å3 | 0.28 × 0.22 × 0.18 mm |
Z = 4 |
Agilent Xcalibur, Eos, Gemini diffractometer | 2189 independent reflections |
Radiation source: Enhance (Cu) X-ray Source | 1944 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
Detector resolution: 16.0416 pixels mm-1 | θmax = 71.3°, θmin = 4.0° |
ω scans | h = −12→13 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2014) | k = −6→5 |
Tmin = 0.828, Tmax = 1.000 | l = −18→24 |
3844 measured reflections |
Refinement on F2 | 2 restraints |
Least-squares matrix: full | Hydrogen site location: mixed |
R[F2 > 2σ(F2)] = 0.049 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.146 | w = 1/[σ2(Fo2) + (0.0871P)2 + 0.3862P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max < 0.001 |
2189 reflections | Δρmax = 0.37 e Å−3 |
146 parameters | Δρmin = −0.34 e Å−3 |
C11H14N2OS | V = 1165.57 (7) Å3 |
Mr = 222.30 | Z = 4 |
Monoclinic, P21/c | Cu Kα radiation |
a = 11.2147 (4) Å | µ = 2.27 mm−1 |
b = 5.3988 (2) Å | T = 293 K |
c = 19.6834 (7) Å | 0.28 × 0.22 × 0.18 mm |
β = 102.031 (4)° |
Agilent Xcalibur, Eos, Gemini diffractometer | 2189 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2014) | 1944 reflections with I > 2σ(I) |
Tmin = 0.828, Tmax = 1.000 | Rint = 0.025 |
3844 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 2 restraints |
wR(F2) = 0.146 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | Δρmax = 0.37 e Å−3 |
2189 reflections | Δρmin = −0.34 e Å−3 |
146 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
Refinement. Refinement on F2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating -R-factor-obs 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 | 0.60730 (5) | 0.80543 (14) | 0.08368 (3) | 0.0464 (2) | |
O1 | 0.86531 (13) | 1.0046 (3) | −0.05679 (8) | 0.0392 (5) | |
N1 | 0.69070 (16) | 1.0345 (3) | −0.01498 (9) | 0.0321 (5) | |
N2 | 0.82704 (16) | 0.7717 (3) | 0.05595 (9) | 0.0337 (5) | |
C1 | 0.63795 (19) | 1.4665 (4) | −0.10695 (11) | 0.0334 (6) | |
C2 | 0.5930 (2) | 1.6272 (4) | −0.16095 (12) | 0.0392 (6) | |
C3 | 0.6171 (2) | 1.5865 (4) | −0.22650 (11) | 0.0414 (7) | |
C4 | 0.6865 (2) | 1.3853 (5) | −0.23779 (11) | 0.0402 (7) | |
C5 | 0.73328 (19) | 1.2248 (4) | −0.18386 (11) | 0.0342 (6) | |
C6 | 0.70827 (17) | 1.2641 (4) | −0.11803 (10) | 0.0293 (5) | |
C7 | 0.76319 (18) | 1.0900 (4) | −0.06135 (10) | 0.0310 (6) | |
C8 | 0.71668 (19) | 0.8697 (4) | 0.04084 (10) | 0.0322 (6) | |
C9 | 0.8684 (2) | 0.5923 (4) | 0.11200 (11) | 0.0389 (7) | |
C10 | 0.9666 (2) | 0.4305 (4) | 0.09293 (13) | 0.0452 (7) | |
C11 | 0.9154 (3) | 0.7308 (6) | 0.17988 (13) | 0.0592 (9) | |
H1 | 0.62120 | 1.49370 | −0.06320 | 0.0400* | |
H1N | 0.6216 (16) | 1.085 (4) | −0.0236 (11) | 0.022 (5)* | |
H2 | 0.54640 | 1.76300 | −0.15340 | 0.0470* | |
H2N | 0.880 (2) | 0.814 (5) | 0.0317 (14) | 0.048 (8)* | |
H3 | 0.58660 | 1.69470 | −0.26270 | 0.0500* | |
H4 | 0.70190 | 1.35740 | −0.28180 | 0.0480* | |
H5 | 0.78120 | 1.09110 | −0.19140 | 0.0410* | |
H9 | 0.79950 | 0.48790 | 0.11730 | 0.0470* | |
H10A | 0.93400 | 0.34290 | 0.05070 | 0.0680* | |
H10B | 0.99470 | 0.31390 | 0.12960 | 0.0680* | |
H10C | 1.03360 | 0.53220 | 0.08640 | 0.0680* | |
H11A | 0.98180 | 0.83660 | 0.17480 | 0.0890* | |
H11B | 0.94320 | 0.61370 | 0.21650 | 0.0890* | |
H11C | 0.85090 | 0.82920 | 0.19110 | 0.0890* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0297 (3) | 0.0743 (5) | 0.0364 (3) | 0.0061 (2) | 0.0096 (2) | 0.0129 (3) |
O1 | 0.0309 (8) | 0.0465 (9) | 0.0415 (8) | 0.0072 (6) | 0.0106 (6) | 0.0113 (7) |
N1 | 0.0278 (8) | 0.0390 (9) | 0.0293 (8) | 0.0046 (7) | 0.0056 (6) | 0.0054 (7) |
N2 | 0.0306 (9) | 0.0383 (10) | 0.0314 (9) | 0.0010 (7) | 0.0046 (7) | 0.0076 (7) |
C1 | 0.0350 (10) | 0.0309 (10) | 0.0331 (10) | −0.0033 (8) | 0.0041 (8) | −0.0023 (8) |
C2 | 0.0400 (11) | 0.0299 (10) | 0.0448 (12) | −0.0012 (9) | 0.0019 (9) | 0.0025 (9) |
C3 | 0.0418 (12) | 0.0405 (12) | 0.0377 (11) | −0.0059 (9) | −0.0014 (9) | 0.0124 (9) |
C4 | 0.0369 (11) | 0.0544 (14) | 0.0291 (10) | −0.0081 (10) | 0.0064 (8) | 0.0062 (9) |
C5 | 0.0284 (10) | 0.0408 (11) | 0.0341 (10) | −0.0027 (8) | 0.0080 (8) | 0.0032 (8) |
C6 | 0.0260 (9) | 0.0304 (9) | 0.0300 (9) | −0.0055 (7) | 0.0022 (7) | 0.0023 (8) |
C7 | 0.0321 (10) | 0.0314 (10) | 0.0286 (9) | −0.0038 (8) | 0.0043 (7) | −0.0007 (8) |
C8 | 0.0336 (10) | 0.0363 (10) | 0.0255 (9) | −0.0020 (8) | 0.0033 (7) | −0.0004 (8) |
C9 | 0.0367 (11) | 0.0412 (12) | 0.0379 (11) | 0.0022 (9) | 0.0059 (9) | 0.0114 (9) |
C10 | 0.0487 (13) | 0.0347 (11) | 0.0506 (13) | 0.0075 (10) | 0.0065 (10) | 0.0043 (10) |
C11 | 0.0607 (16) | 0.079 (2) | 0.0334 (12) | 0.0280 (14) | −0.0003 (11) | 0.0010 (12) |
S1—C8 | 1.664 (2) | C9—C11 | 1.526 (3) |
O1—C7 | 1.220 (3) | C9—C10 | 1.513 (3) |
N1—C7 | 1.376 (3) | C1—H1 | 0.9300 |
N1—C8 | 1.397 (3) | C2—H2 | 0.9300 |
N2—C8 | 1.322 (3) | C3—H3 | 0.9300 |
N2—C9 | 1.469 (3) | C4—H4 | 0.9300 |
C1—C2 | 1.383 (3) | C5—H5 | 0.9300 |
C1—C6 | 1.391 (3) | C9—H9 | 0.9800 |
N1—H1N | 0.806 (19) | C10—H10A | 0.9600 |
N2—H2N | 0.87 (2) | C10—H10B | 0.9600 |
C2—C3 | 1.390 (3) | C10—H10C | 0.9600 |
C3—C4 | 1.381 (3) | C11—H11A | 0.9600 |
C4—C5 | 1.386 (3) | C11—H11B | 0.9600 |
C5—C6 | 1.398 (3) | C11—H11C | 0.9600 |
C6—C7 | 1.490 (3) | ||
C7—N1—C8 | 127.26 (18) | C6—C1—H1 | 120.00 |
C8—N2—C9 | 124.57 (18) | C1—C2—H2 | 120.00 |
C2—C1—C6 | 120.0 (2) | C3—C2—H2 | 120.00 |
C7—N1—H1N | 117.5 (15) | C2—C3—H3 | 120.00 |
C8—N1—H1N | 114.5 (15) | C4—C3—H3 | 120.00 |
C1—C2—C3 | 120.3 (2) | C3—C4—H4 | 120.00 |
C8—N2—H2N | 119.2 (17) | C5—C4—H4 | 120.00 |
C9—N2—H2N | 116.2 (17) | C4—C5—H5 | 120.00 |
C2—C3—C4 | 119.9 (2) | C6—C5—H5 | 120.00 |
C3—C4—C5 | 120.3 (2) | N2—C9—H9 | 109.00 |
C4—C5—C6 | 119.9 (2) | C10—C9—H9 | 109.00 |
C1—C6—C7 | 122.51 (18) | C11—C9—H9 | 109.00 |
C5—C6—C7 | 117.82 (18) | C9—C10—H10A | 109.00 |
C1—C6—C5 | 119.63 (19) | C9—C10—H10B | 110.00 |
O1—C7—N1 | 122.96 (19) | C9—C10—H10C | 109.00 |
O1—C7—C6 | 121.90 (18) | H10A—C10—H10B | 110.00 |
N1—C7—C6 | 115.14 (17) | H10A—C10—H10C | 109.00 |
S1—C8—N1 | 118.47 (16) | H10B—C10—H10C | 109.00 |
S1—C8—N2 | 123.87 (16) | C9—C11—H11A | 110.00 |
N1—C8—N2 | 117.65 (19) | C9—C11—H11B | 109.00 |
N2—C9—C11 | 109.39 (19) | C9—C11—H11C | 109.00 |
C10—C9—C11 | 111.3 (2) | H11A—C11—H11B | 109.00 |
N2—C9—C10 | 109.06 (18) | H11A—C11—H11C | 109.00 |
C2—C1—H1 | 120.00 | H11B—C11—H11C | 110.00 |
C7—N1—C8—N2 | 7.1 (3) | C2—C1—C6—C7 | 177.6 (2) |
C7—N1—C8—S1 | −172.18 (17) | C1—C2—C3—C4 | −0.2 (3) |
C8—N1—C7—O1 | −3.3 (3) | C2—C3—C4—C5 | −0.6 (3) |
C8—N1—C7—C6 | 176.95 (19) | C3—C4—C5—C6 | 1.2 (3) |
C9—N2—C8—S1 | 0.4 (3) | C4—C5—C6—C7 | −178.5 (2) |
C9—N2—C8—N1 | −178.83 (18) | C4—C5—C6—C1 | −0.9 (3) |
C8—N2—C9—C10 | 151.8 (2) | C1—C6—C7—O1 | −140.9 (2) |
C8—N2—C9—C11 | −86.2 (3) | C5—C6—C7—O1 | 36.7 (3) |
C6—C1—C2—C3 | 0.4 (3) | C5—C6—C7—N1 | −143.55 (19) |
C2—C1—C6—C5 | 0.1 (3) | C1—C6—C7—N1 | 38.9 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···S1i | 0.81 (2) | 2.66 (2) | 3.4439 (19) | 165 (2) |
N2—H2N···O1 | 0.87 (2) | 2.00 (3) | 2.662 (2) | 132 (2) |
Symmetry code: (i) −x+1, −y+2, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···S1i | 0.806 (19) | 2.659 (19) | 3.4439 (19) | 165 (2) |
N2—H2N···O1 | 0.87 (2) | 2.00 (3) | 2.662 (2) | 132 (2) |
Symmetry code: (i) −x+1, −y+2, −z. |
Acknowledgements
JPJ acknowledges the NSF–MRI program (grant No. CHE-1039027) for funds to purchase the X-ray diffractometer. SKM would like to thank Keene State College for providing the X-ray data and Manchester Metropolitan University for supporting this study.
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