organic compounds
2-Amino-N′-phenylbenzohydrazide
aDepartamento de Química, Universidad Católica del Norte, Casilla 1280, Antofagasta, Chile, bDepartamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Casilla 170, Antofagasta, Chile, and cInstituto de Bio-Orgánica 'Antonio González', Universidad de La Laguna, Astrofísico Francisco Sánchez N°2, La Laguna, Tenerife, Spain
*Correspondence e-mail: ivanbritob@yahoo.com
In the title compound, C13H13N3O, the NNCO unit forms dihedral angles of 35.8 (1) and 84.0 (1)° with the benzene and phenyl rings, respectively. The dihedral angles between the aromatic rings is 61.2 (1)°. An intramolecular N—H⋯O hydrogen bond occurs. In the crystal, molecules are linked by weak N—H⋯O hydrogen bonds into C(4) chains parallel to the c axis. Neighbouring chains are linked by weak N—H⋯N hydrogen bonds, forming R44(20) rings, and resulting in the formation of a two-dimensional network lying parallel to (010). The packing also features π–π stacking interactions between phenyl rings [centroid–centroid distance = 3.803 (2) Å].
Related literature
For the pharmacological activity of quinazolinones, see: Kamal et al. (2010) and of benzotriazepinones, see: Filippakopoulos et al. (2012); Spencer et al. (2008). For the synthesis of the starting material 1H-benzo[d][1,3]oxazine-2,4-dione, see: Iwakura et al. (1976); Leiby & Heindel (1976). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: COLLECT (Nonius, 2000); cell DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536812022362/ds2196sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812022362/ds2196Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812022362/ds2196Isup3.cml
The synthesis of the 2-amino-N'-phenylbenzohydrazide 2 was done starting of isatoic anhydride (1H-benzo[d][1,3]oxazine-2,4-dione) (Leiby & Heindel 1976; Iwakura et al., 1976), which was treated with phenyl hydrazine in DMF at reflux by 2 h to give an 82% yield. The product was crystallized in ethyl acetate with melting point 227–228 °C. UV λ(MeOH) 310, 280 and 225 nm, λ(MeONa) 340, 265 and 225 nm. IR cm-1, (Nujol), 3300 (NH), 1670 (carbonyl).
The H-atoms could be located in difference Fourier maps. H3A and H3B atoms parameters were freely refined. The remaining H atoms, were positioned geometrically and treated using a riding model with N—H = 0.86 Å, C—H = 0.93 with Uiso(H) = k × Ueq(N,C), where k = 1.2 for both atoms.
Data collection: COLLECT (Nonius, 2000); cell
DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN (Otwinowski & Minor, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and publCIF (Westrip, 2010).C13H13N3O | F(000) = 480 |
Mr = 227.26 | Dx = 1.287 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2923 reflections |
a = 6.1190 (12) Å | θ = 3.9–28.6° |
b = 19.921 (4) Å | µ = 0.09 mm−1 |
c = 9.6490 (19) Å | T = 293 K |
β = 94.08 (3)° | Block, colourless |
V = 1173.2 (4) Å3 | 0.40 × 0.21 × 0.10 mm |
Z = 4 |
Nonius KappaCCD area-detector diffractometer | 2330 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.092 |
Graphite monochromator | θmax = 28.6°, θmin = 3.9° |
ϕ and ω scans with κ offsets | h = 0→8 |
17096 measured reflections | k = 0→26 |
2923 independent reflections | l = −12→12 |
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)] = 0.068 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.163 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.09 | w = 1/[σ2(Fo2) + (0.0568P)2 + 0.7268P] where P = (Fo2 + 2Fc2)/3 |
2923 reflections | (Δ/σ)max < 0.001 |
162 parameters | Δρmax = 0.53 e Å−3 |
0 restraints | Δρmin = −0.49 e Å−3 |
C13H13N3O | V = 1173.2 (4) Å3 |
Mr = 227.26 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 6.1190 (12) Å | µ = 0.09 mm−1 |
b = 19.921 (4) Å | T = 293 K |
c = 9.6490 (19) Å | 0.40 × 0.21 × 0.10 mm |
β = 94.08 (3)° |
Nonius KappaCCD area-detector diffractometer | 2330 reflections with I > 2σ(I) |
17096 measured reflections | Rint = 0.092 |
2923 independent reflections |
R[F2 > 2σ(F2)] = 0.068 | 0 restraints |
wR(F2) = 0.163 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.09 | Δρmax = 0.53 e Å−3 |
2923 reflections | Δρmin = −0.49 e Å−3 |
162 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | ||
O1 | 0.6118 (2) | 0.71063 (8) | 0.36635 (13) | 0.0430 (4) | |
N1 | 0.5506 (3) | 0.73222 (8) | 0.58950 (15) | 0.0377 (4) | |
H1 | 0.5943 | 0.7527 | 0.6648 | 0.045* | |
N2 | 0.3725 (3) | 0.68841 (9) | 0.59083 (17) | 0.0407 (4) | |
H2 | 0.2401 | 0.7021 | 0.5736 | 0.049* | |
N3 | 1.0637 (3) | 0.73656 (12) | 0.3383 (2) | 0.0499 (5) | |
H3A | 0.956 (5) | 0.7108 (13) | 0.312 (3) | 0.059 (8)* | |
H3B | 1.161 (5) | 0.7445 (14) | 0.273 (3) | 0.073 (8)* | |
C1 | 0.6555 (3) | 0.74322 (9) | 0.47424 (17) | 0.0313 (4) | |
C2 | 0.8220 (3) | 0.79772 (9) | 0.48509 (17) | 0.0323 (4) | |
C3 | 0.7862 (3) | 0.85526 (10) | 0.5633 (2) | 0.0421 (5) | |
H3 | 0.6585 | 0.8587 | 0.6095 | 0.051* | |
C4 | 0.9359 (4) | 0.90690 (12) | 0.5732 (3) | 0.0560 (6) | |
H4 | 0.9095 | 0.9450 | 0.6253 | 0.067* | |
C5 | 1.1263 (4) | 0.90142 (13) | 0.5046 (3) | 0.0575 (6) | |
H5 | 1.2291 | 0.9359 | 0.5115 | 0.069* | |
C6 | 1.1644 (3) | 0.84588 (12) | 0.4269 (2) | 0.0483 (5) | |
H6 | 1.2936 | 0.8431 | 0.3820 | 0.058* | |
C7 | 1.0137 (3) | 0.79316 (10) | 0.41334 (18) | 0.0364 (4) | |
C8 | 0.4207 (3) | 0.62058 (11) | 0.62176 (19) | 0.0387 (4) | |
C9 | 0.6191 (4) | 0.59962 (12) | 0.6849 (2) | 0.0484 (5) | |
H9 | 0.7320 | 0.6304 | 0.7030 | 0.058* | |
C10 | 0.6494 (5) | 0.53310 (14) | 0.7208 (3) | 0.0668 (7) | |
H10 | 0.7826 | 0.5195 | 0.7642 | 0.080* | |
C11 | 0.4861 (6) | 0.48666 (14) | 0.6935 (3) | 0.0756 (9) | |
H11 | 0.5089 | 0.4417 | 0.7165 | 0.091* | |
C12 | 0.2896 (6) | 0.50745 (15) | 0.6322 (3) | 0.0744 (9) | |
H12 | 0.1780 | 0.4763 | 0.6141 | 0.089* | |
C13 | 0.2535 (4) | 0.57384 (14) | 0.5967 (2) | 0.0574 (6) | |
H13 | 0.1181 | 0.5873 | 0.5562 | 0.069* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0418 (8) | 0.0618 (9) | 0.0262 (6) | −0.0055 (7) | 0.0065 (5) | −0.0045 (6) |
N1 | 0.0373 (8) | 0.0497 (10) | 0.0269 (7) | −0.0088 (7) | 0.0078 (6) | −0.0030 (6) |
N2 | 0.0271 (8) | 0.0565 (11) | 0.0392 (9) | −0.0040 (7) | 0.0075 (6) | 0.0005 (7) |
N3 | 0.0307 (9) | 0.0768 (14) | 0.0433 (10) | 0.0021 (9) | 0.0102 (8) | −0.0160 (9) |
C1 | 0.0273 (8) | 0.0423 (10) | 0.0244 (8) | 0.0062 (7) | 0.0036 (6) | 0.0025 (7) |
C2 | 0.0314 (9) | 0.0411 (10) | 0.0247 (8) | 0.0037 (7) | 0.0042 (6) | 0.0069 (7) |
C3 | 0.0428 (11) | 0.0431 (11) | 0.0416 (11) | 0.0052 (9) | 0.0110 (8) | 0.0008 (8) |
C4 | 0.0652 (15) | 0.0420 (12) | 0.0619 (14) | −0.0052 (11) | 0.0122 (12) | −0.0036 (10) |
C5 | 0.0571 (14) | 0.0535 (14) | 0.0623 (15) | −0.0169 (11) | 0.0069 (11) | 0.0088 (11) |
C6 | 0.0358 (10) | 0.0681 (15) | 0.0418 (11) | −0.0061 (10) | 0.0080 (8) | 0.0098 (10) |
C7 | 0.0312 (9) | 0.0518 (11) | 0.0264 (8) | 0.0050 (8) | 0.0029 (7) | 0.0054 (7) |
C8 | 0.0369 (10) | 0.0527 (12) | 0.0277 (9) | −0.0090 (9) | 0.0110 (7) | −0.0053 (8) |
C9 | 0.0466 (12) | 0.0556 (13) | 0.0429 (11) | −0.0047 (10) | 0.0032 (9) | −0.0023 (9) |
C10 | 0.0792 (18) | 0.0638 (17) | 0.0579 (15) | 0.0090 (14) | 0.0075 (13) | 0.0107 (12) |
C11 | 0.115 (3) | 0.0522 (16) | 0.0625 (17) | −0.0101 (17) | 0.0263 (17) | 0.0061 (12) |
C12 | 0.094 (2) | 0.0721 (19) | 0.0589 (16) | −0.0427 (17) | 0.0213 (15) | −0.0099 (13) |
C13 | 0.0503 (13) | 0.0728 (17) | 0.0496 (13) | −0.0242 (12) | 0.0069 (10) | −0.0072 (11) |
O1—C1 | 1.240 (2) | C5—C6 | 1.366 (4) |
N1—C1 | 1.341 (2) | C5—H5 | 0.9300 |
N1—N2 | 1.397 (2) | C6—C7 | 1.397 (3) |
N1—H1 | 0.8600 | C6—H6 | 0.9300 |
N2—C8 | 1.411 (3) | C8—C9 | 1.384 (3) |
N2—H2 | 0.8600 | C8—C13 | 1.392 (3) |
N3—C7 | 1.386 (3) | C9—C10 | 1.379 (4) |
N3—H3A | 0.86 (3) | C9—H9 | 0.9300 |
N3—H3B | 0.91 (3) | C10—C11 | 1.374 (4) |
C1—C2 | 1.487 (3) | C10—H10 | 0.9300 |
C2—C3 | 1.398 (3) | C11—C12 | 1.366 (5) |
C2—C7 | 1.407 (2) | C11—H11 | 0.9300 |
C3—C4 | 1.376 (3) | C12—C13 | 1.380 (4) |
C3—H3 | 0.9300 | C12—H12 | 0.9300 |
C4—C5 | 1.385 (4) | C13—H13 | 0.9300 |
C4—H4 | 0.9300 | ||
C1—N1—N2 | 121.98 (15) | C5—C6—C7 | 121.5 (2) |
C1—N1—H1 | 119.0 | C5—C6—H6 | 119.2 |
N2—N1—H1 | 119.0 | C7—C6—H6 | 119.2 |
N1—N2—C8 | 116.67 (15) | N3—C7—C6 | 119.45 (18) |
N1—N2—H2 | 121.7 | N3—C7—C2 | 122.17 (19) |
C8—N2—H2 | 121.7 | C6—C7—C2 | 118.23 (18) |
C7—N3—H3A | 116.4 (18) | C9—C8—C13 | 119.1 (2) |
C7—N3—H3B | 113.5 (18) | C9—C8—N2 | 123.09 (18) |
H3A—N3—H3B | 115 (3) | C13—C8—N2 | 117.7 (2) |
O1—C1—N1 | 121.54 (17) | C10—C9—C8 | 119.9 (2) |
O1—C1—C2 | 123.18 (16) | C10—C9—H9 | 120.0 |
N1—C1—C2 | 115.26 (15) | C8—C9—H9 | 120.0 |
C3—C2—C7 | 119.10 (18) | C11—C10—C9 | 121.1 (3) |
C3—C2—C1 | 120.27 (16) | C11—C10—H10 | 119.5 |
C7—C2—C1 | 120.60 (17) | C9—C10—H10 | 119.5 |
C4—C3—C2 | 121.46 (19) | C12—C11—C10 | 119.0 (3) |
C4—C3—H3 | 119.3 | C12—C11—H11 | 120.5 |
C2—C3—H3 | 119.3 | C10—C11—H11 | 120.5 |
C3—C4—C5 | 119.1 (2) | C11—C12—C13 | 121.2 (3) |
C3—C4—H4 | 120.5 | C11—C12—H12 | 119.4 |
C5—C4—H4 | 120.5 | C13—C12—H12 | 119.4 |
C6—C5—C4 | 120.6 (2) | C12—C13—C8 | 119.7 (3) |
C6—C5—H5 | 119.7 | C12—C13—H13 | 120.2 |
C4—C5—H5 | 119.7 | C8—C13—H13 | 120.2 |
C1—N1—N2—C8 | 89.2 (2) | C3—C2—C7—N3 | 177.46 (18) |
N2—N1—C1—O1 | −6.4 (3) | C1—C2—C7—N3 | −4.6 (3) |
N2—N1—C1—C2 | 172.28 (16) | C3—C2—C7—C6 | 1.9 (3) |
O1—C1—C2—C3 | 142.55 (19) | C1—C2—C7—C6 | 179.85 (16) |
N1—C1—C2—C3 | −36.1 (2) | N1—N2—C8—C9 | 17.7 (3) |
O1—C1—C2—C7 | −35.3 (3) | N1—N2—C8—C13 | −167.37 (17) |
N1—C1—C2—C7 | 146.01 (17) | C13—C8—C9—C10 | 0.6 (3) |
C7—C2—C3—C4 | −1.0 (3) | N2—C8—C9—C10 | 175.5 (2) |
C1—C2—C3—C4 | −178.95 (19) | C8—C9—C10—C11 | 0.8 (4) |
C2—C3—C4—C5 | −0.3 (3) | C9—C10—C11—C12 | −1.3 (4) |
C3—C4—C5—C6 | 0.7 (4) | C10—C11—C12—C13 | 0.4 (4) |
C4—C5—C6—C7 | 0.3 (4) | C11—C12—C13—C8 | 0.9 (4) |
C5—C6—C7—N3 | −177.3 (2) | C9—C8—C13—C12 | −1.4 (3) |
C5—C6—C7—C2 | −1.6 (3) | N2—C8—C13—C12 | −176.6 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 | 2.07 | 2.903 (2) | 162 |
N3—H3A···O1 | 0.86 (3) | 2.21 (3) | 2.845 (2) | 131 (2) |
N2—H2···N3ii | 0.86 | 2.54 | 3.126 (3) | 126 |
Symmetry codes: (i) x, −y+3/2, z+1/2; (ii) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C13H13N3O |
Mr | 227.26 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 6.1190 (12), 19.921 (4), 9.6490 (19) |
β (°) | 94.08 (3) |
V (Å3) | 1173.2 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.40 × 0.21 × 0.10 |
Data collection | |
Diffractometer | Nonius KappaCCD area-detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17096, 2923, 2330 |
Rint | 0.092 |
(sin θ/λ)max (Å−1) | 0.673 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.068, 0.163, 1.09 |
No. of reflections | 2923 |
No. of parameters | 162 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.53, −0.49 |
Computer programs: COLLECT (Nonius, 2000), DENZO-SMN (Otwinowski & Minor, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), OLEX2 (Dolomanov et al., 2009), WinGX (Farrugia, 1999) and publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.86 | 2.07 | 2.903 (2) | 162 |
N3—H3A···O1 | 0.86 (3) | 2.21 (3) | 2.845 (2) | 131 (2) |
N2—H2···N3ii | 0.86 | 2.54 | 3.126 (3) | 126 |
Symmetry codes: (i) x, −y+3/2, z+1/2; (ii) x−1, y, z. |
Acknowledgements
We are grateful to the Consejo Superior de Investigaciones Científicas (CSIC) of Spain for the award of a licence for the use of the Cambridge Structural Database (CSD).
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.
The 2-amino-N'-phenylbenzohydrazide 2 is a key intermediate to obtain quinazolinones and benzotriazepines derivatives. The quinazolinone nucleous and its derivatives have been extensively studied because of their wide range of pharmacological activities, including antiviral, antibacterial, antifungal, antimalarial, anticancer, antihypertensive, diuretic, anticonvulsant and anti-inflammatory (Kamal et al., 2010). On the other hand, the benzotriazepinones have been described as efficient enzymatic inhibitors (Filippakopoulos et al., 2012; Spencer et al., 2008). We report herein on the synthesis and crystal structure of the title compound, a member of this important family of compounds. In the title molecule, Fig. 1, the NNCO moiety form a dihedral angle of 35.8 (1)° and 84.0 (1)° with benzene and phenyl rings respectively. The dihedral angles between the aromatic rings is 61.2 (1)°. In the crystal the molecules are packed via π–π stacking interaction [centroid–centroid distance 3.803 (2) Å] and linked by N1—H1···O1(x, -y + 3/2, z + 1/2) weak hydrogen bond to form a C(4) chain running parallel to the c axis, which are linked to neighboring chains by N2—H3···N3(x - 1, y, z) weak hydrogen bond to form R44(20) centrosymmetric rings (Bernstein et al., 1995). One intramolecular N—H···O hydrogen bond is observed too, Fig.2, Table1.