organic compounds
4-Chloro-N-(2-chlorophenyl)benzamide
aDepartment of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan, and bDepartment of Chemistry, Faculty of Science, Okayama University, Okayama 700-8530, Japan
*Correspondence e-mail: aamersaeed@yahoo.com
In the molecular structure of the title compound, C13H9Cl2NO, the amide N—C=O plane makes dihedral angles of 31.53 (8) and 36.23 (8)°, respectively, with the 4-chloro- and 2-chlorophenyl rings. The dihedral angle between the two benzene rings is 6.25 (8)°. The molecules are stacked in columns along the b axis through intermolecular N—H⋯O hydrogen bonds. The columns are further connected by weak C—H⋯O hydrogen bonds. The compound is not isomorphous with the fluoro analogue.
Related literature
For general background, see: Capdeville et al. (2002); Chopra & Row (2005); Ho et al. (2002); Igawa et al. (1999); Jackson et al. (1994); Makino et al. (2003); Zhichkin et al. (2007). For related structures, see: Chopra & Row (2005).
Experimental
Crystal data
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Refinement
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Data collection: PROCESS-AUTO (Rigaku/MSC, 2004); cell PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: CrystalStructure and PLATON (Spek, 2003).
Supporting information
10.1107/S1600536808028882/bh2189sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808028882/bh2189Isup2.hkl
4-Chorobenzoyl chloride (5.4 mmol) in CHCl3 was treated with 2-chloroaniline (21.6 mmol) under a nitrogen atmosphere at reflux for 4 h. Upon cooling, the reaction mixture was diluted with CHCl3 and washed consecutively with aq. 1 M HCl and saturated aq. NaHCO3. The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. Crystallization of the residue in CHCl3 afforded the title compound (84%). Anal. calcd. for C13H9Cl2NO: C 58.67, H 3.41, N 5.26%; found: C 58.23, H 3.46, N 5.08%.
The N-bound H atom was located in a difference map and refined freely. Other H atoms were positioned geometrically (C—H = 0.94 Å) and treated as riding atoms, with Uiso(H) = 1.2Ueq(C).
Data collection: PROCESS-AUTO (Rigaku/MSC, 2004); cell
PROCESS-AUTO (Rigaku/MSC, 2004); data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: CrystalStructure (Rigaku/MSC, 2004) and PLATON (Spek, 2003).C13H9Cl2NO | F(000) = 544.00 |
Mr = 266.13 | Dx = 1.459 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71075 Å |
Hall symbol: -P 2yn | Cell parameters from 8924 reflections |
a = 10.7913 (14) Å | θ = 3.0–30.0° |
b = 4.8078 (6) Å | µ = 0.52 mm−1 |
c = 23.570 (3) Å | T = 223 K |
β = 97.718 (3)° | Plate, colourless |
V = 1211.8 (3) Å3 | 0.35 × 0.31 × 0.05 mm |
Z = 4 |
Rigaku R-AXIS RAPID II diffractometer | 1847 reflections with I > 2σ(I) |
Detector resolution: 10.00 pixels mm-1 | Rint = 0.042 |
ω scans | θmax = 30.0° |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | h = −15→15 |
Tmin = 0.884, Tmax = 0.975 | k = −6→6 |
14924 measured reflections | l = −31→33 |
3527 independent reflections |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | 0 constraints |
R[F2 > 2σ(F2)] = 0.051 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.154 | w = 1/[σ2(Fo2) + (0.079P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.00 | (Δ/σ)max < 0.001 |
3527 reflections | Δρmax = 0.23 e Å−3 |
158 parameters | Δρmin = −0.39 e Å−3 |
C13H9Cl2NO | V = 1211.8 (3) Å3 |
Mr = 266.13 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 10.7913 (14) Å | µ = 0.52 mm−1 |
b = 4.8078 (6) Å | T = 223 K |
c = 23.570 (3) Å | 0.35 × 0.31 × 0.05 mm |
β = 97.718 (3)° |
Rigaku R-AXIS RAPID II diffractometer | 3527 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 1847 reflections with I > 2σ(I) |
Tmin = 0.884, Tmax = 0.975 | Rint = 0.042 |
14924 measured reflections |
R[F2 > 2σ(F2)] = 0.051 | 0 restraints |
wR(F2) = 0.154 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.00 | Δρmax = 0.23 e Å−3 |
3527 reflections | Δρmin = −0.39 e Å−3 |
158 parameters |
x | y | z | Uiso*/Ueq | ||
Cl1 | 0.01681 (5) | 0.18996 (11) | 0.55784 (3) | 0.0701 (2) | |
Cl2 | 0.40856 (8) | 0.29994 (18) | 0.27592 (3) | 0.1044 (3) | |
O1 | 0.31900 (14) | 0.9176 (3) | 0.52035 (6) | 0.0704 (4) | |
N1 | 0.24949 (15) | 0.4883 (3) | 0.54060 (7) | 0.0533 (4) | |
H1 | 0.246 (2) | 0.321 (5) | 0.5293 (10) | 0.074 (7)* | |
C1 | 0.32607 (17) | 0.5666 (4) | 0.45021 (8) | 0.0523 (4) | |
C2 | 0.4236 (2) | 0.6900 (4) | 0.42566 (10) | 0.0650 (6) | |
H2 | 0.4721 | 0.8303 | 0.4456 | 0.078* | |
C3 | 0.4487 (2) | 0.6070 (5) | 0.37257 (11) | 0.0725 (6) | |
H3 | 0.5152 | 0.6882 | 0.3565 | 0.087* | |
C4 | 0.3765 (2) | 0.4053 (5) | 0.34303 (10) | 0.0695 (6) | |
C5 | 0.2787 (2) | 0.2815 (5) | 0.36606 (10) | 0.0680 (6) | |
H5 | 0.2295 | 0.1444 | 0.3454 | 0.082* | |
C6 | 0.25440 (19) | 0.3623 (4) | 0.41982 (9) | 0.0599 (5) | |
H6 | 0.1887 | 0.2780 | 0.4359 | 0.072* | |
C7 | 0.29897 (17) | 0.6734 (3) | 0.50645 (9) | 0.0528 (5) | |
C8 | 0.20311 (18) | 0.5546 (4) | 0.59237 (8) | 0.0531 (4) | |
C9 | 0.09424 (19) | 0.4263 (4) | 0.60525 (8) | 0.0554 (5) | |
C10 | 0.0457 (2) | 0.4875 (5) | 0.65537 (9) | 0.0727 (6) | |
H10 | −0.0267 | 0.3965 | 0.6639 | 0.087* | |
C11 | 0.1041 (3) | 0.6823 (6) | 0.69252 (11) | 0.0870 (8) | |
H11 | 0.0701 | 0.7295 | 0.7259 | 0.104* | |
C12 | 0.2115 (3) | 0.8069 (5) | 0.68088 (11) | 0.0833 (8) | |
H12 | 0.2517 | 0.9368 | 0.7069 | 0.100* | |
C13 | 0.2623 (2) | 0.7451 (4) | 0.63118 (10) | 0.0694 (6) | |
H13 | 0.3366 | 0.8322 | 0.6239 | 0.083* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0638 (4) | 0.0686 (4) | 0.0792 (4) | −0.0099 (2) | 0.0140 (3) | −0.0038 (3) |
Cl2 | 0.1190 (6) | 0.1252 (6) | 0.0763 (5) | 0.0111 (5) | 0.0399 (4) | −0.0089 (4) |
O1 | 0.0844 (10) | 0.0411 (7) | 0.0895 (11) | −0.0058 (7) | 0.0258 (8) | −0.0078 (7) |
N1 | 0.0588 (10) | 0.0416 (8) | 0.0610 (10) | −0.0015 (7) | 0.0138 (7) | −0.0073 (7) |
C1 | 0.0492 (11) | 0.0427 (9) | 0.0664 (12) | 0.0048 (8) | 0.0125 (9) | 0.0010 (8) |
C2 | 0.0556 (12) | 0.0544 (11) | 0.0883 (16) | −0.0030 (9) | 0.0215 (11) | −0.0019 (10) |
C3 | 0.0654 (14) | 0.0695 (13) | 0.0890 (16) | 0.0007 (11) | 0.0333 (12) | 0.0051 (12) |
C4 | 0.0710 (14) | 0.0737 (14) | 0.0667 (13) | 0.0155 (11) | 0.0193 (11) | 0.0037 (11) |
C5 | 0.0673 (14) | 0.0718 (13) | 0.0649 (14) | −0.0011 (11) | 0.0085 (10) | −0.0083 (10) |
C6 | 0.0560 (12) | 0.0605 (11) | 0.0647 (12) | −0.0051 (9) | 0.0137 (9) | −0.0010 (9) |
C7 | 0.0468 (10) | 0.0411 (9) | 0.0714 (12) | 0.0028 (7) | 0.0114 (9) | −0.0016 (8) |
C8 | 0.0581 (11) | 0.0459 (9) | 0.0546 (11) | 0.0081 (8) | 0.0050 (8) | −0.0026 (8) |
C9 | 0.0584 (12) | 0.0542 (10) | 0.0536 (10) | 0.0086 (9) | 0.0078 (9) | 0.0019 (9) |
C10 | 0.0785 (15) | 0.0826 (14) | 0.0596 (12) | 0.0170 (12) | 0.0185 (11) | 0.0073 (12) |
C11 | 0.111 (2) | 0.0959 (19) | 0.0554 (14) | 0.0370 (17) | 0.0142 (14) | −0.0010 (13) |
C12 | 0.105 (2) | 0.0804 (16) | 0.0593 (14) | 0.0151 (15) | −0.0073 (13) | −0.0202 (11) |
C13 | 0.0756 (15) | 0.0632 (12) | 0.0665 (14) | 0.0028 (11) | −0.0010 (11) | −0.0106 (10) |
Cl1—C9 | 1.729 (2) | C5—C6 | 1.384 (3) |
Cl2—C4 | 1.739 (2) | C5—H5 | 0.9400 |
O1—C7 | 1.230 (2) | C6—H6 | 0.9400 |
N1—C7 | 1.357 (2) | C8—C13 | 1.388 (3) |
N1—C8 | 1.416 (2) | C8—C9 | 1.396 (3) |
N1—H1 | 0.84 (2) | C9—C10 | 1.387 (3) |
C1—C6 | 1.388 (3) | C10—C11 | 1.376 (4) |
C1—C2 | 1.399 (3) | C10—H10 | 0.9400 |
C1—C7 | 1.487 (3) | C11—C12 | 1.364 (4) |
C2—C3 | 1.375 (3) | C11—H11 | 0.9400 |
C2—H2 | 0.9400 | C12—C13 | 1.391 (3) |
C3—C4 | 1.373 (3) | C12—H12 | 0.9400 |
C3—H3 | 0.9400 | C13—H13 | 0.9400 |
C4—C5 | 1.384 (3) | ||
C7—N1—C8 | 125.20 (16) | O1—C7—N1 | 122.49 (18) |
C7—N1—H1 | 116.3 (16) | O1—C7—C1 | 121.24 (16) |
C8—N1—H1 | 118.4 (16) | N1—C7—C1 | 116.26 (16) |
C6—C1—C2 | 118.98 (18) | C13—C8—C9 | 118.34 (19) |
C6—C1—C7 | 122.80 (16) | C13—C8—N1 | 122.11 (19) |
C2—C1—C7 | 118.10 (18) | C9—C8—N1 | 119.55 (17) |
C3—C2—C1 | 120.3 (2) | C10—C9—C8 | 121.1 (2) |
C3—C2—H2 | 119.8 | C10—C9—Cl1 | 119.00 (17) |
C1—C2—H2 | 119.8 | C8—C9—Cl1 | 119.86 (15) |
C4—C3—C2 | 119.9 (2) | C11—C10—C9 | 119.5 (2) |
C4—C3—H3 | 120.0 | C11—C10—H10 | 120.2 |
C2—C3—H3 | 120.0 | C9—C10—H10 | 120.2 |
C3—C4—C5 | 121.0 (2) | C12—C11—C10 | 120.0 (2) |
C3—C4—Cl2 | 119.89 (18) | C12—C11—H11 | 120.0 |
C5—C4—Cl2 | 119.1 (2) | C10—C11—H11 | 120.0 |
C6—C5—C4 | 119.1 (2) | C11—C12—C13 | 121.2 (2) |
C6—C5—H5 | 120.4 | C11—C12—H12 | 119.4 |
C4—C5—H5 | 120.4 | C13—C12—H12 | 119.4 |
C5—C6—C1 | 120.66 (19) | C8—C13—C12 | 119.8 (2) |
C5—C6—H6 | 119.7 | C8—C13—H13 | 120.1 |
C1—C6—H6 | 119.7 | C12—C13—H13 | 120.1 |
C6—C1—C2—C3 | −0.8 (3) | C2—C1—C7—N1 | −151.15 (18) |
C7—C1—C2—C3 | −177.11 (19) | C7—N1—C8—C13 | −39.9 (3) |
C1—C2—C3—C4 | 1.1 (3) | C7—N1—C8—C9 | 140.0 (2) |
C2—C3—C4—C5 | −0.5 (3) | C13—C8—C9—C10 | 0.3 (3) |
C2—C3—C4—Cl2 | −179.88 (18) | N1—C8—C9—C10 | −179.58 (17) |
C3—C4—C5—C6 | −0.4 (3) | C13—C8—C9—Cl1 | 179.47 (15) |
Cl2—C4—C5—C6 | 179.04 (17) | N1—C8—C9—Cl1 | −0.4 (2) |
C4—C5—C6—C1 | 0.6 (3) | C8—C9—C10—C11 | 1.4 (3) |
C2—C1—C6—C5 | 0.0 (3) | Cl1—C9—C10—C11 | −177.82 (17) |
C7—C1—C6—C5 | 176.07 (19) | C9—C10—C11—C12 | −2.2 (4) |
C8—N1—C7—O1 | 7.0 (3) | C10—C11—C12—C13 | 1.4 (4) |
C8—N1—C7—C1 | −171.95 (16) | C9—C8—C13—C12 | −1.1 (3) |
C6—C1—C7—O1 | −146.2 (2) | N1—C8—C13—C12 | 178.72 (19) |
C2—C1—C7—O1 | 29.9 (3) | C11—C12—C13—C8 | 0.3 (4) |
C6—C1—C7—N1 | 32.7 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.85 (2) | 2.12 (2) | 2.901 (2) | 154 (2) |
C2—H2···O1ii | 0.94 | 2.59 | 3.456 (3) | 153 |
C13—H13···O1 | 0.94 | 2.46 | 2.884 (3) | 108 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C13H9Cl2NO |
Mr | 266.13 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 223 |
a, b, c (Å) | 10.7913 (14), 4.8078 (6), 23.570 (3) |
β (°) | 97.718 (3) |
V (Å3) | 1211.8 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.52 |
Crystal size (mm) | 0.35 × 0.31 × 0.05 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID II diffractometer |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.884, 0.975 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14924, 3527, 1847 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.051, 0.154, 1.00 |
No. of reflections | 3527 |
No. of parameters | 158 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.23, −0.39 |
Computer programs: PROCESS-AUTO (Rigaku/MSC, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), CrystalStructure (Rigaku/MSC, 2004) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.85 (2) | 2.12 (2) | 2.901 (2) | 154 (2) |
C2—H2···O1ii | 0.94 | 2.59 | 3.456 (3) | 153 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1, −y+2, −z+1. |
Acknowledgements
AS gratefully acknowledges a research grant from Quaid-I-Azam University, Islamabad.
References
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The benzanilide core is present in compounds with a wide range of biological activities, and for this reason it has been called a privileged structure. Benzanilides serve as intermediates towards benzothiadiazin-4-ones (Makino et al., 2003), benzodiazepine-2,5-diones (Ho et al., 2002), and 2,3-disubstituted 3H-quinazoline-4-ones (Zhichkin et al., 2007). Benzanilides have established their efficacy as centroid elements of ligands that bind to a wide variety of receptor types. Thus, benzanilides containing aminoalkyl groups originally designed as peptidomimetic compounds, have been incorporated in an Arg-Gly-Asp cyclic peptide, yielding a high affinity GPIIb/IIIa ligand (Jackson et al., 1994). Imatinib is an ATP-site binding kinase inhibitor and platelet-derived growth factor receptor kinase (Capdeville et al., 2002). Benzamides have activities as acetyl-CoA carboxylase and farnesyl transferase inhibitors (Igawa et al., 1999).
In the crystal structure of the title compound (Fig. 1), the molecules are stacked in columns along the b cell-axis through intermolecular N—H···O hydrogen bonds (Table 1). The columns are also connected by weak C—H···O hydrogen bonds (Fig. 2). No significant π–π interactions are observed in the columns. The title compound is not isomorphous with the F analogue compound, 4-fluoro-N-(2-fluorophenyl)-benzamide, which exhibits a dimorphic behaviour, with non-centrosymmetric space groups P21 and Pca21 (Chopra & Row, 2005). The different crystal structures of the F analogue are probably originated from the intermolecular C—H···F interactions.