organic compounds
2-(2-Chlorophenyl)-2,3-dihydroquinazolin-4(1H)-one
aSchool of Chemistry & Chemical Engineering, Xuzhou Institute of Technology, Xuzhou Jiangsu 221008, People's Republic of China
*Correspondence e-mail: feng.changjun@163.com
The title compound, C14H11ClN2O, was synthesized by the reaction of 2-chlorobenzaldehyde and 2-aminobenzamide in an ionic liquid. The pyrimidine ring adopts a skew-boat conformation and the two benzene rings make a dihedral angle of 87.1 (1)°. In the crystal, N—H⋯O and C—H⋯N hydrogen bonding links the molecules along b.
Related literature
For quinazoline derivatives as antitumor agents, see: Feng et al. (2006); Keenan & Shakespear (2004); Mikiciuk-Olasik et al. (2004). For the biological activity of quinazoline derivatives, see: Bedi et al. (2004); Lin et al. (2006); Saleh et al. (2004).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536809031328/pb2004sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809031328/pb2004Isup2.hkl
The title compound, (I), was prepared by the reaction of 2-chlorobenzaldehyde (2 mmol, 0.280 g), 2-aminobenzamide (2 mmol, 0.272 g) and ionic liquid of [Bmim]Br (2 ml) at 353 K. The isolated compound melts at 485–486 K. The single crystals suitable for X-ray diffraction were obtained by slow evaporation ethanol solution.
The H atoms were calculated geometrically and refined as riding, with C—H = 0.93 Å except for H1A, H1B and H2A, and with Uiso(H) = 1.2Ueq.
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C14H11ClN2O | Z = 2 |
Mr = 258.70 | F(000) = 268 |
Triclinic, P1 | Dx = 1.399 Mg m−3 |
Hall symbol: -P 1 | Melting point = 485–486 K |
a = 6.9900 (1) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 8.7488 (2) Å | Cell parameters from 5614 reflections |
c = 10.4756 (2) Å | θ = 2.4–27.3° |
α = 100.639 (1)° | µ = 0.30 mm−1 |
β = 92.726 (1)° | T = 296 K |
γ = 101.786 (1)° | Block, colourless |
V = 613.91 (2) Å3 | 0.47 × 0.15 × 0.15 mm |
Bruker SMART CCD area-detector diffractometer | 2204 independent reflections |
Radiation source: fine-focus sealed tube | 2029 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.019 |
ϕ and ω scans | θmax = 25.2°, θmin = 2.0° |
Absorption correction: multi-scan (Jacobson, 1998) | h = −8→8 |
Tmin = 0.901, Tmax = 0.950 | k = −10→10 |
8018 measured reflections | l = −12→11 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.030 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.082 | w = 1/[σ2(Fo2) + (0.0395P)2 + 0.1722P] where P = (Fo2 + 2Fc2)/3 |
S = 1.07 | (Δ/σ)max < 0.001 |
2204 reflections | Δρmax = 0.20 e Å−3 |
176 parameters | Δρmin = −0.19 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.028 (4) |
C14H11ClN2O | γ = 101.786 (1)° |
Mr = 258.70 | V = 613.91 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 6.9900 (1) Å | Mo Kα radiation |
b = 8.7488 (2) Å | µ = 0.30 mm−1 |
c = 10.4756 (2) Å | T = 296 K |
α = 100.639 (1)° | 0.47 × 0.15 × 0.15 mm |
β = 92.726 (1)° |
Bruker SMART CCD area-detector diffractometer | 2204 independent reflections |
Absorption correction: multi-scan (Jacobson, 1998) | 2029 reflections with I > 2σ(I) |
Tmin = 0.901, Tmax = 0.950 | Rint = 0.019 |
8018 measured reflections |
R[F2 > 2σ(F2)] = 0.030 | 0 restraints |
wR(F2) = 0.082 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | Δρmax = 0.20 e Å−3 |
2204 reflections | Δρmin = −0.19 e Å−3 |
176 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 | ||
Cl1 | 0.16029 (5) | 0.69778 (5) | 0.05650 (4) | 0.05390 (17) | |
N2 | 0.50252 (18) | 1.00296 (13) | 0.18929 (11) | 0.0344 (3) | |
C9 | 0.53903 (19) | 0.72253 (15) | 0.14393 (12) | 0.0301 (3) | |
O1 | 1.08313 (14) | 1.09067 (13) | 0.17031 (11) | 0.0497 (3) | |
C2 | 0.9066 (2) | 1.04662 (16) | 0.18541 (14) | 0.0370 (3) | |
C8 | 0.61534 (19) | 1.08206 (15) | 0.30290 (12) | 0.0319 (3) | |
N1 | 0.78205 (17) | 0.94682 (14) | 0.09040 (12) | 0.0367 (3) | |
C14 | 0.3498 (2) | 0.62845 (16) | 0.12560 (13) | 0.0345 (3) | |
C1 | 0.57649 (19) | 0.88323 (15) | 0.10227 (13) | 0.0315 (3) | |
C10 | 0.6833 (2) | 0.66331 (18) | 0.20113 (14) | 0.0411 (3) | |
H10A | 0.8115 | 0.7230 | 0.2153 | 0.049* | |
C13 | 0.3048 (2) | 0.48197 (17) | 0.16089 (15) | 0.0451 (4) | |
H13A | 0.1769 | 0.4217 | 0.1469 | 0.054* | |
C3 | 0.8198 (2) | 1.10531 (17) | 0.30508 (13) | 0.0384 (3) | |
C7 | 0.5326 (2) | 1.14921 (18) | 0.41197 (14) | 0.0419 (3) | |
H7A | 0.3970 | 1.1339 | 0.4120 | 0.050* | |
C11 | 0.6398 (3) | 0.5163 (2) | 0.23777 (16) | 0.0521 (4) | |
H11A | 0.7385 | 0.4786 | 0.2765 | 0.063* | |
C4 | 0.9362 (2) | 1.1958 (2) | 0.41504 (17) | 0.0613 (5) | |
H4A | 1.0720 | 1.2122 | 0.4163 | 0.074* | |
C12 | 0.4514 (3) | 0.42650 (18) | 0.21692 (16) | 0.0517 (4) | |
H12A | 0.4232 | 0.3277 | 0.2409 | 0.062* | |
C6 | 0.6509 (3) | 1.2379 (2) | 0.51937 (16) | 0.0582 (5) | |
H6A | 0.5944 | 1.2828 | 0.5916 | 0.070* | |
C5 | 0.8526 (3) | 1.2615 (3) | 0.52208 (17) | 0.0722 (6) | |
H5A | 0.9312 | 1.3214 | 0.5957 | 0.087* | |
H2A | 0.382 (2) | 0.9860 (18) | 0.1921 (14) | 0.037 (4)* | |
H1A | 0.823 (2) | 0.9236 (19) | 0.0184 (18) | 0.045 (4)* | |
H1B | 0.510 (2) | 0.8682 (16) | 0.0185 (14) | 0.027 (3)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0326 (2) | 0.0464 (2) | 0.0788 (3) | 0.00346 (16) | −0.01097 (18) | 0.01200 (19) |
N2 | 0.0259 (6) | 0.0347 (6) | 0.0423 (7) | 0.0069 (5) | 0.0038 (5) | 0.0067 (5) |
C9 | 0.0304 (7) | 0.0324 (6) | 0.0270 (6) | 0.0067 (5) | 0.0065 (5) | 0.0041 (5) |
O1 | 0.0298 (5) | 0.0554 (7) | 0.0566 (7) | −0.0007 (5) | 0.0140 (5) | 0.0007 (5) |
C2 | 0.0310 (7) | 0.0380 (7) | 0.0418 (8) | 0.0051 (6) | 0.0087 (6) | 0.0084 (6) |
C8 | 0.0330 (7) | 0.0308 (6) | 0.0347 (7) | 0.0076 (5) | 0.0059 (5) | 0.0119 (5) |
N1 | 0.0338 (6) | 0.0396 (6) | 0.0339 (6) | 0.0012 (5) | 0.0126 (5) | 0.0050 (5) |
C14 | 0.0329 (7) | 0.0334 (7) | 0.0350 (7) | 0.0055 (6) | 0.0015 (5) | 0.0034 (5) |
C1 | 0.0292 (7) | 0.0347 (7) | 0.0298 (7) | 0.0041 (5) | 0.0032 (5) | 0.0073 (5) |
C10 | 0.0342 (8) | 0.0447 (8) | 0.0456 (8) | 0.0101 (6) | 0.0034 (6) | 0.0105 (6) |
C13 | 0.0473 (9) | 0.0339 (7) | 0.0481 (9) | −0.0027 (6) | 0.0017 (7) | 0.0063 (6) |
C3 | 0.0327 (7) | 0.0448 (8) | 0.0368 (7) | 0.0081 (6) | 0.0049 (6) | 0.0060 (6) |
C7 | 0.0395 (8) | 0.0473 (8) | 0.0431 (8) | 0.0148 (6) | 0.0130 (6) | 0.0118 (6) |
C11 | 0.0576 (10) | 0.0484 (9) | 0.0569 (10) | 0.0218 (8) | −0.0019 (8) | 0.0175 (7) |
C4 | 0.0382 (9) | 0.0858 (13) | 0.0502 (10) | 0.0114 (9) | −0.0030 (7) | −0.0067 (9) |
C12 | 0.0676 (11) | 0.0326 (7) | 0.0546 (9) | 0.0063 (7) | 0.0013 (8) | 0.0139 (7) |
C6 | 0.0641 (11) | 0.0729 (12) | 0.0372 (8) | 0.0220 (9) | 0.0126 (7) | 0.0002 (8) |
C5 | 0.0615 (12) | 0.0989 (15) | 0.0431 (10) | 0.0171 (11) | −0.0070 (8) | −0.0161 (9) |
Cl1—C14 | 1.7453 (14) | C10—C11 | 1.388 (2) |
N2—C8 | 1.3787 (17) | C10—H10A | 0.9300 |
N2—C1 | 1.4523 (17) | C13—C12 | 1.372 (2) |
N2—H2A | 0.831 (16) | C13—H13A | 0.9300 |
C9—C10 | 1.3839 (19) | C3—C4 | 1.388 (2) |
C9—C14 | 1.3915 (19) | C7—C6 | 1.371 (2) |
C9—C1 | 1.5240 (18) | C7—H7A | 0.9300 |
O1—C2 | 1.2421 (17) | C11—C12 | 1.373 (2) |
C2—N1 | 1.3405 (18) | C11—H11A | 0.9300 |
C2—C3 | 1.4716 (19) | C4—C5 | 1.375 (2) |
C8—C7 | 1.3924 (19) | C4—H4A | 0.9300 |
C8—C3 | 1.4001 (19) | C12—H12A | 0.9300 |
N1—C1 | 1.4511 (17) | C6—C5 | 1.380 (3) |
N1—H1A | 0.824 (18) | C6—H6A | 0.9300 |
C14—C13 | 1.378 (2) | C5—H5A | 0.9300 |
C1—H1B | 0.948 (14) | ||
C8—N2—C1 | 118.48 (11) | C11—C10—H10A | 119.5 |
C8—N2—H2A | 116.8 (10) | C12—C13—C14 | 118.97 (14) |
C1—N2—H2A | 116.0 (10) | C12—C13—H13A | 120.5 |
C10—C9—C14 | 116.97 (12) | C14—C13—H13A | 120.5 |
C10—C9—C1 | 123.74 (12) | C4—C3—C8 | 119.58 (13) |
C14—C9—C1 | 119.28 (11) | C4—C3—C2 | 121.32 (14) |
O1—C2—N1 | 121.40 (13) | C8—C3—C2 | 118.80 (12) |
O1—C2—C3 | 122.54 (13) | C6—C7—C8 | 120.05 (14) |
N1—C2—C3 | 116.00 (12) | C6—C7—H7A | 120.0 |
N2—C8—C7 | 121.83 (12) | C8—C7—H7A | 120.0 |
N2—C8—C3 | 118.83 (12) | C12—C11—C10 | 120.13 (14) |
C7—C8—C3 | 119.18 (13) | C12—C11—H11A | 119.9 |
C2—N1—C1 | 124.90 (12) | C10—C11—H11A | 119.9 |
C2—N1—H1A | 117.9 (12) | C5—C4—C3 | 120.63 (16) |
C1—N1—H1A | 117.1 (12) | C5—C4—H4A | 119.7 |
C13—C14—C9 | 122.57 (13) | C3—C4—H4A | 119.7 |
C13—C14—Cl1 | 118.17 (11) | C13—C12—C11 | 120.28 (14) |
C9—C14—Cl1 | 119.26 (10) | C13—C12—H12A | 119.9 |
N1—C1—N2 | 108.17 (11) | C11—C12—H12A | 119.9 |
N1—C1—C9 | 113.41 (11) | C7—C6—C5 | 121.06 (15) |
N2—C1—C9 | 112.80 (10) | C7—C6—H6A | 119.5 |
N1—C1—H1B | 106.9 (8) | C5—C6—H6A | 119.5 |
N2—C1—H1B | 107.8 (8) | C4—C5—C6 | 119.49 (16) |
C9—C1—H1B | 107.5 (8) | C4—C5—H5A | 120.3 |
C9—C10—C11 | 121.08 (14) | C6—C5—H5A | 120.3 |
C9—C10—H10A | 119.5 | ||
C1—N2—C8—C7 | −154.80 (12) | Cl1—C14—C13—C12 | −179.15 (12) |
C1—N2—C8—C3 | 29.94 (17) | N2—C8—C3—C4 | 174.78 (14) |
O1—C2—N1—C1 | 176.67 (13) | C7—C8—C3—C4 | −0.6 (2) |
C3—C2—N1—C1 | −5.9 (2) | N2—C8—C3—C2 | 0.93 (19) |
C10—C9—C14—C13 | −0.6 (2) | C7—C8—C3—C2 | −174.45 (13) |
C1—C9—C14—C13 | −179.95 (12) | O1—C2—C3—C4 | −9.3 (2) |
C10—C9—C14—Cl1 | 178.92 (10) | N1—C2—C3—C4 | 173.25 (15) |
C1—C9—C14—Cl1 | −0.48 (16) | O1—C2—C3—C8 | 164.39 (14) |
C2—N1—C1—N2 | 33.01 (17) | N1—C2—C3—C8 | −13.0 (2) |
C2—N1—C1—C9 | −92.90 (15) | N2—C8—C7—C6 | −174.73 (14) |
C8—N2—C1—N1 | −44.49 (15) | C3—C8—C7—C6 | 0.5 (2) |
C8—N2—C1—C9 | 81.78 (14) | C9—C10—C11—C12 | 0.3 (2) |
C10—C9—C1—N1 | 17.84 (18) | C8—C3—C4—C5 | 0.6 (3) |
C14—C9—C1—N1 | −162.81 (11) | C2—C3—C4—C5 | 174.27 (18) |
C10—C9—C1—N2 | −105.57 (14) | C14—C13—C12—C11 | 0.3 (2) |
C14—C9—C1—N2 | 73.78 (15) | C10—C11—C12—C13 | −0.6 (3) |
C14—C9—C10—C11 | 0.2 (2) | C8—C7—C6—C5 | −0.4 (3) |
C1—C9—C10—C11 | 179.58 (13) | C3—C4—C5—C6 | −0.5 (3) |
C9—C14—C13—C12 | 0.3 (2) | C7—C6—C5—C4 | 0.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O1i | 0.831 (16) | 2.461 (16) | 3.1847 (16) | 146.2 (14) |
N1—H1A···O1ii | 0.824 (18) | 2.103 (18) | 2.9146 (16) | 168.4 (16) |
C1—H1B···N2iii | 0.948 (14) | 2.635 (14) | 3.4369 (17) | 142.6 (11) |
Symmetry codes: (i) x−1, y, z; (ii) −x+2, −y+2, −z; (iii) −x+1, −y+2, −z. |
Experimental details
Crystal data | |
Chemical formula | C14H11ClN2O |
Mr | 258.70 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 6.9900 (1), 8.7488 (2), 10.4756 (2) |
α, β, γ (°) | 100.639 (1), 92.726 (1), 101.786 (1) |
V (Å3) | 613.91 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.30 |
Crystal size (mm) | 0.47 × 0.15 × 0.15 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (Jacobson, 1998) |
Tmin, Tmax | 0.901, 0.950 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8018, 2204, 2029 |
Rint | 0.019 |
(sin θ/λ)max (Å−1) | 0.599 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.030, 0.082, 1.07 |
No. of reflections | 2204 |
No. of parameters | 176 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.20, −0.19 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O1i | 0.831 (16) | 2.461 (16) | 3.1847 (16) | 146.2 (14) |
N1—H1A···O1ii | 0.824 (18) | 2.103 (18) | 2.9146 (16) | 168.4 (16) |
C1—H1B···N2iii | 0.948 (14) | 2.635 (14) | 3.4369 (17) | 142.6 (11) |
Symmetry codes: (i) x−1, y, z; (ii) −x+2, −y+2, −z; (iii) −x+1, −y+2, −z. |
Acknowledgements
We are grateful to the National Natural Science Foundation of China (20776149) and the Natural Science Foundation (XKY2008313) of Xuzhou Institute of Technology for financial support.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Quinazoline derivatives are well known compounds as antitumor agents (Feng et al., 2006; Keenan et al., 2004; Mikiciuk-Olasik et al., 2004). In addition, it was reported that some quinazoline derivatives possessed biological activities, such as antimalarial activity (Lin et al., 2006) antibacterial activity (Bedi et al., 2004) and antifungal activity (Saleh et al., 2004). We report here the crystal structure of 2-(2-chlorophenyl)-2,3-dihydroquinazolin-4(1H)-one, (I).
The X-ray crystal structure determination indicates that the pyrimidine ring in the quinazoline moiety is slightly distorted, adopting a skew-boat conformation. The atoms of C2, C3, C8 and N2 are coplanar, with the atoms N1 and C1 deviating from the defined plane by 0.256 (2) and 0.623 (2) Å, respectively. The basal plane is nearly parallel to the benzene ring (C3—C8), forming a dihedral angle of 5.4 (1) °. And is nearly perpendicular to the benzene ring (C9—C14), forming a dihedral angle of 87.7 (1) °. Two benzene rings make a dihedral angle of 87.1 (1) °.
The hydrogen bonds of N—H···O and C—H···N are presented in the crystal structure of (I) (Table 2). The intermolecular hydrogen bond (N1—H1A···O1) and hydrogen bond (C1—H1B···N2) link the adjacent molecules, forming dimmers, respectively. The hydrogen bond of N2—H2A···O1 and above hydrogen bonds link the molecules forming polymers along b (Figure 2).