organic compounds
3-Benzyl-1-{[3-(4-chlorophenyl)isoxazol-5-yl]methyl}-1H-benzimidazol-2(3H)-one
aLaboratoire de Chimie Organique Appliquée, Université Sidi Mohamed Ben Abdallah, Faculté des Sciences et Techniques, Route d'Immouzzer, BP 2202 Fès, Morocco, bUnité de Catalyse et de Chimie du Solide (UCCS), UMR 8181, Ecole Nationale Supérieure de Chimie de Lille, France, cUSR 3290 Miniaturisation pour l'Analyse, la Synthèse et la Protéomique, 59655 Villeneuve d'Ascq Cedex, Université Lille 1, France, and dLaboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V-Agdal, Avenue Ibn Battouta, BP 1014, Rabat, Morocco
*Correspondence e-mail: amal_haoudi@yahoo.fr
In the title compound, C24H18ClN3O2, the benzimidazole plane is nearly perpendicular to the phenyl ring and to the isoxazole ring, making dihedral angles of 75.95 (7) and 73.04 (8)°, respectively, but the two residues point in opposite directions with respect to the benzimidazole plane. The dihedral angle between the chlorophenyl and isoxazole rings is 7.95 (8)°. In the crystal, molecules are linked by pairs of C—H⋯O hydrogen bonds into inversion dimers.
Related literature
For the biological activity of isoxazoline derivatives, see: Sakuma et al. (2011); Hu et al. (2010); Wang et al. (2010). For benzimidazol-2-one derivatives, see: Belaziz et al. (2012).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell APEX2 and SAINT-Plus (Bruker, 2009); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009) and publCIF (Westrip, 2010).
Supporting information
10.1107/S160053681302299X/bt6928sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053681302299X/bt6928Isup2.hkl
Supporting information file. DOI: 10.1107/S160053681302299X/bt6928Isup3.cml
To 1-allylbenzimidozol-2-one (0.40 g, 2.3 mmol), potassium carbonate (0.63 g, 4,55 mmol) and tetra-n-butylammonium bromide (0.07 g, 0.22 mmol) in DMF (15 ml) was added benzyl chloride (0.32 g, 2.53 mmol). Stirring was continued at room temperature for 6 h. The salt was removed by filtration and the filtrate concentrated under reduced pressure. The residue was separated by
on a column of silica gel with ethyl acetate/ hexane (1/2) as The compound was recrystallized from hexane/acetate to give colorless crystals. To the obtained compound (1-allyl-3-benzyl-benzimidazol-2-one) (0.20 g, 0.76 mmol) was added p-chlorobenzaldoxime (0.15 g, 1 mmol) in chloroform (10 ml) and 4% solution of sodium hypochlorite solution (commercial bleach) (4 ml) at 0°C. Stirring was continued for 6 h. The organic layer was dried and the solvent evaporated under reduced pressure. The residue was then purified by on silica gel by using a mixture of hexane and ethyl acetate (1/1) as Colourless crystals were isolated when the solvent was allowed to evaporate (Yield: 68%; mp: 467 K).All H atoms could be located in a difference Fourier map. Nevertheless, they were placed in calculated positions with C—H = 0.93 Å (aromatic), and C—H = 0.97 Å (methylene) and refined as riding on their parent atoms with Uiso(H) = 1.2 Ueq (C).
Data collection: APEX2 (Bruker, 2009); cell
APEX2 and SAINT-Plus (Bruker, 2009); data reduction: SAINT-Plus (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009) and publCIF (Westrip, 2010).C24H18ClN3O2 | Z = 2 |
Mr = 415.86 | F(000) = 432 |
Triclinic, P1 | Dx = 1.407 Mg m−3 |
Hall symbol: -P 1 | Melting point: 467 K |
a = 8.5427 (2) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 9.8290 (2) Å | Cell parameters from 9881 reflections |
c = 13.2658 (3) Å | θ = 2.7–29.9° |
α = 81.133 (1)° | µ = 0.22 mm−1 |
β = 78.763 (1)° | T = 296 K |
γ = 64.343 (1)° | Prism, colourless |
V = 981.73 (4) Å3 | 0.60 × 0.39 × 0.13 mm |
Bruker APEXII CCD diffractometer | 5994 independent reflections |
Radiation source: fine-focus sealed tube | 4622 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
ϕ and ω scans | θmax = 30.6°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −12→12 |
Tmin = 0.688, Tmax = 0.746 | k = −14→14 |
70806 measured reflections | l = −18→18 |
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)] = 0.045 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.143 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0745P)2 + 0.2335P] where P = (Fo2 + 2Fc2)/3 |
5994 reflections | (Δ/σ)max = 0.001 |
271 parameters | Δρmax = 0.55 e Å−3 |
0 restraints | Δρmin = −0.35 e Å−3 |
C24H18ClN3O2 | γ = 64.343 (1)° |
Mr = 415.86 | V = 981.73 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.5427 (2) Å | Mo Kα radiation |
b = 9.8290 (2) Å | µ = 0.22 mm−1 |
c = 13.2658 (3) Å | T = 296 K |
α = 81.133 (1)° | 0.60 × 0.39 × 0.13 mm |
β = 78.763 (1)° |
Bruker APEXII CCD diffractometer | 5994 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 4622 reflections with I > 2σ(I) |
Tmin = 0.688, Tmax = 0.746 | Rint = 0.029 |
70806 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 0 restraints |
wR(F2) = 0.143 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.55 e Å−3 |
5994 reflections | Δρmin = −0.35 e Å−3 |
271 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 > 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 | ||
C1 | 0.96270 (18) | 0.07935 (15) | 1.15305 (10) | 0.0408 (3) | |
C2 | 1.0111 (2) | 0.19835 (18) | 1.13183 (12) | 0.0491 (3) | |
H2 | 1.0951 | 0.2011 | 1.1658 | 0.059* | |
C3 | 0.9335 (2) | 0.31396 (17) | 1.05931 (11) | 0.0466 (3) | |
H3 | 0.9659 | 0.3947 | 1.0446 | 0.056* | |
C4 | 0.80752 (16) | 0.31087 (14) | 1.00813 (9) | 0.0362 (2) | |
C5 | 0.75890 (19) | 0.19111 (17) | 1.03279 (11) | 0.0445 (3) | |
H5 | 0.6728 | 0.1890 | 1.0004 | 0.053* | |
C6 | 0.8363 (2) | 0.07437 (17) | 1.10491 (12) | 0.0468 (3) | |
H6 | 0.8035 | −0.0061 | 1.1206 | 0.056* | |
C7 | 0.73329 (17) | 0.42911 (14) | 0.92671 (9) | 0.0362 (2) | |
C8 | 0.62184 (18) | 0.43492 (16) | 0.85805 (10) | 0.0422 (3) | |
H8 | 0.5746 | 0.3661 | 0.8565 | 0.051* | |
C9 | 0.59949 (17) | 0.56105 (15) | 0.79592 (10) | 0.0400 (3) | |
C10 | 0.50513 (19) | 0.63221 (18) | 0.70493 (11) | 0.0480 (3) | |
H10A | 0.4119 | 0.5997 | 0.7084 | 0.058* | |
H10B | 0.4520 | 0.7414 | 0.7069 | 0.058* | |
C11 | 0.6890 (2) | 0.68917 (17) | 0.54875 (11) | 0.0461 (3) | |
C12 | 0.79140 (18) | 0.47023 (16) | 0.47125 (10) | 0.0436 (3) | |
C13 | 0.8769 (2) | 0.35197 (19) | 0.40860 (12) | 0.0562 (4) | |
H13 | 0.9492 | 0.3597 | 0.3478 | 0.067* | |
C14 | 0.8507 (3) | 0.2209 (2) | 0.43976 (15) | 0.0669 (5) | |
H14 | 0.9087 | 0.1387 | 0.3996 | 0.080* | |
C15 | 0.7409 (3) | 0.20923 (19) | 0.52889 (14) | 0.0628 (4) | |
H15 | 0.7239 | 0.1208 | 0.5465 | 0.075* | |
C16 | 0.6556 (2) | 0.32735 (18) | 0.59249 (12) | 0.0522 (3) | |
H16 | 0.5825 | 0.3196 | 0.6529 | 0.063* | |
C17 | 0.68346 (18) | 0.45689 (16) | 0.56272 (10) | 0.0423 (3) | |
C18 | 0.8719 (2) | 0.68311 (19) | 0.37749 (12) | 0.0511 (3) | |
H18A | 0.9817 | 0.6069 | 0.3471 | 0.061* | |
H18B | 0.8978 | 0.7582 | 0.4019 | 0.061* | |
C19 | 0.75256 (18) | 0.75806 (16) | 0.29623 (10) | 0.0425 (3) | |
C20 | 0.6070 (2) | 0.89424 (17) | 0.31390 (11) | 0.0463 (3) | |
H20 | 0.5858 | 0.9388 | 0.3750 | 0.056* | |
C21 | 0.4936 (2) | 0.96400 (18) | 0.24177 (12) | 0.0511 (3) | |
H21 | 0.3960 | 1.0546 | 0.2547 | 0.061* | |
C22 | 0.5253 (2) | 0.8988 (2) | 0.15014 (12) | 0.0541 (4) | |
H22 | 0.4493 | 0.9457 | 0.1014 | 0.065* | |
C23 | 0.6691 (2) | 0.7652 (2) | 0.13163 (12) | 0.0570 (4) | |
H23 | 0.6909 | 0.7219 | 0.0699 | 0.068* | |
C24 | 0.7823 (2) | 0.69410 (19) | 0.20462 (12) | 0.0519 (3) | |
H24 | 0.8788 | 0.6029 | 0.1918 | 0.062* | |
Cl1 | 1.06618 (6) | −0.06917 (5) | 1.24013 (3) | 0.05818 (13) | |
N1 | 0.7736 (2) | 0.54512 (15) | 0.90688 (11) | 0.0558 (3) | |
N2 | 0.62261 (16) | 0.59181 (13) | 0.60857 (8) | 0.0439 (3) | |
N3 | 0.79299 (16) | 0.61217 (14) | 0.46473 (9) | 0.0460 (3) | |
O1 | 0.68832 (17) | 0.63109 (13) | 0.82270 (9) | 0.0573 (3) | |
O2 | 0.66140 (18) | 0.81529 (13) | 0.56718 (9) | 0.0607 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0437 (6) | 0.0438 (6) | 0.0331 (6) | −0.0174 (5) | −0.0066 (5) | 0.0017 (5) |
C2 | 0.0552 (8) | 0.0538 (8) | 0.0485 (8) | −0.0288 (7) | −0.0227 (6) | 0.0051 (6) |
C3 | 0.0585 (8) | 0.0477 (7) | 0.0469 (7) | −0.0324 (6) | −0.0205 (6) | 0.0059 (6) |
C4 | 0.0397 (6) | 0.0411 (6) | 0.0304 (5) | −0.0194 (5) | −0.0054 (4) | −0.0021 (4) |
C5 | 0.0482 (7) | 0.0530 (7) | 0.0425 (7) | −0.0304 (6) | −0.0137 (5) | 0.0045 (6) |
C6 | 0.0534 (8) | 0.0501 (7) | 0.0465 (7) | −0.0320 (6) | −0.0106 (6) | 0.0061 (6) |
C7 | 0.0397 (6) | 0.0404 (6) | 0.0302 (5) | −0.0181 (5) | −0.0046 (4) | −0.0033 (4) |
C8 | 0.0461 (7) | 0.0499 (7) | 0.0370 (6) | −0.0251 (6) | −0.0112 (5) | 0.0008 (5) |
C9 | 0.0389 (6) | 0.0455 (7) | 0.0324 (6) | −0.0146 (5) | −0.0045 (5) | −0.0037 (5) |
C10 | 0.0426 (7) | 0.0542 (8) | 0.0364 (6) | −0.0096 (6) | −0.0093 (5) | −0.0002 (6) |
C11 | 0.0496 (7) | 0.0452 (7) | 0.0376 (6) | −0.0130 (6) | −0.0134 (5) | 0.0017 (5) |
C12 | 0.0442 (7) | 0.0445 (7) | 0.0364 (6) | −0.0102 (5) | −0.0162 (5) | 0.0010 (5) |
C13 | 0.0591 (9) | 0.0556 (9) | 0.0421 (7) | −0.0096 (7) | −0.0122 (6) | −0.0073 (6) |
C14 | 0.0808 (12) | 0.0497 (9) | 0.0620 (10) | −0.0106 (8) | −0.0250 (9) | −0.0130 (8) |
C15 | 0.0821 (12) | 0.0489 (8) | 0.0619 (10) | −0.0252 (8) | −0.0306 (9) | 0.0021 (7) |
C16 | 0.0599 (9) | 0.0520 (8) | 0.0465 (8) | −0.0227 (7) | −0.0213 (7) | 0.0069 (6) |
C17 | 0.0436 (6) | 0.0438 (7) | 0.0355 (6) | −0.0116 (5) | −0.0174 (5) | 0.0027 (5) |
C18 | 0.0454 (7) | 0.0613 (9) | 0.0436 (7) | −0.0219 (7) | −0.0084 (6) | 0.0060 (6) |
C19 | 0.0439 (7) | 0.0489 (7) | 0.0364 (6) | −0.0232 (6) | −0.0040 (5) | 0.0018 (5) |
C20 | 0.0536 (8) | 0.0479 (7) | 0.0382 (6) | −0.0217 (6) | −0.0083 (6) | −0.0015 (5) |
C21 | 0.0522 (8) | 0.0506 (8) | 0.0506 (8) | −0.0212 (6) | −0.0133 (6) | 0.0026 (6) |
C22 | 0.0599 (9) | 0.0698 (10) | 0.0467 (8) | −0.0390 (8) | −0.0180 (7) | 0.0053 (7) |
C23 | 0.0686 (10) | 0.0752 (11) | 0.0416 (7) | −0.0425 (9) | −0.0045 (7) | −0.0115 (7) |
C24 | 0.0528 (8) | 0.0564 (8) | 0.0448 (7) | −0.0226 (7) | 0.0005 (6) | −0.0091 (6) |
Cl1 | 0.0641 (2) | 0.0540 (2) | 0.0521 (2) | −0.02165 (18) | −0.01949 (17) | 0.01336 (16) |
N1 | 0.0801 (9) | 0.0523 (7) | 0.0520 (7) | −0.0390 (7) | −0.0331 (7) | 0.0130 (6) |
N2 | 0.0495 (6) | 0.0440 (6) | 0.0317 (5) | −0.0131 (5) | −0.0093 (4) | 0.0009 (4) |
N3 | 0.0494 (6) | 0.0461 (6) | 0.0368 (6) | −0.0158 (5) | −0.0077 (5) | 0.0022 (5) |
O1 | 0.0810 (8) | 0.0494 (6) | 0.0542 (6) | −0.0357 (6) | −0.0315 (6) | 0.0140 (5) |
O2 | 0.0779 (8) | 0.0466 (6) | 0.0534 (6) | −0.0220 (6) | −0.0090 (6) | −0.0044 (5) |
C1—C2 | 1.375 (2) | C12—C17 | 1.400 (2) |
C1—C6 | 1.378 (2) | C13—C14 | 1.389 (3) |
C1—Cl1 | 1.7342 (13) | C13—H13 | 0.9300 |
C2—C3 | 1.384 (2) | C14—C15 | 1.382 (3) |
C2—H2 | 0.9300 | C14—H14 | 0.9300 |
C3—C4 | 1.3928 (18) | C15—C16 | 1.386 (2) |
C3—H3 | 0.9300 | C15—H15 | 0.9300 |
C4—C5 | 1.3845 (18) | C16—C17 | 1.380 (2) |
C4—C7 | 1.4701 (17) | C16—H16 | 0.9300 |
C5—C6 | 1.386 (2) | C17—N2 | 1.3882 (18) |
C5—H5 | 0.9300 | C18—N3 | 1.4610 (19) |
C6—H6 | 0.9300 | C18—C19 | 1.509 (2) |
C7—N1 | 1.3037 (18) | C18—H18A | 0.9700 |
C7—C8 | 1.4192 (17) | C18—H18B | 0.9700 |
C8—C9 | 1.3394 (19) | C19—C24 | 1.383 (2) |
C8—H8 | 0.9300 | C19—C20 | 1.391 (2) |
C9—O1 | 1.3449 (18) | C20—C21 | 1.381 (2) |
C9—C10 | 1.4922 (18) | C20—H20 | 0.9300 |
C10—N2 | 1.4527 (18) | C21—C22 | 1.386 (2) |
C10—H10A | 0.9700 | C21—H21 | 0.9300 |
C10—H10B | 0.9700 | C22—C23 | 1.371 (3) |
C11—O2 | 1.2124 (19) | C22—H22 | 0.9300 |
C11—N3 | 1.3772 (19) | C23—C24 | 1.390 (2) |
C11—N2 | 1.388 (2) | C23—H23 | 0.9300 |
C12—C13 | 1.379 (2) | C24—H24 | 0.9300 |
C12—N3 | 1.3902 (19) | N1—O1 | 1.4088 (16) |
C2—C1—C6 | 121.31 (13) | C15—C14—H14 | 119.1 |
C2—C1—Cl1 | 119.23 (11) | C13—C14—H14 | 119.1 |
C6—C1—Cl1 | 119.44 (11) | C14—C15—C16 | 121.02 (17) |
C1—C2—C3 | 119.24 (13) | C14—C15—H15 | 119.5 |
C1—C2—H2 | 120.4 | C16—C15—H15 | 119.5 |
C3—C2—H2 | 120.4 | C17—C16—C15 | 117.41 (16) |
C2—C3—C4 | 120.78 (13) | C17—C16—H16 | 121.3 |
C2—C3—H3 | 119.6 | C15—C16—H16 | 121.3 |
C4—C3—H3 | 119.6 | C16—C17—N2 | 131.99 (14) |
C5—C4—C3 | 118.59 (12) | C16—C17—C12 | 121.66 (14) |
C5—C4—C7 | 120.80 (11) | N2—C17—C12 | 106.35 (13) |
C3—C4—C7 | 120.56 (12) | N3—C18—C19 | 111.88 (12) |
C4—C5—C6 | 121.11 (12) | N3—C18—H18A | 109.2 |
C4—C5—H5 | 119.4 | C19—C18—H18A | 109.2 |
C6—C5—H5 | 119.4 | N3—C18—H18B | 109.2 |
C1—C6—C5 | 118.94 (13) | C19—C18—H18B | 109.2 |
C1—C6—H6 | 120.5 | H18A—C18—H18B | 107.9 |
C5—C6—H6 | 120.5 | C24—C19—C20 | 118.70 (13) |
N1—C7—C8 | 110.87 (12) | C24—C19—C18 | 121.82 (14) |
N1—C7—C4 | 120.56 (11) | C20—C19—C18 | 119.47 (13) |
C8—C7—C4 | 128.52 (12) | C21—C20—C19 | 120.76 (14) |
C9—C8—C7 | 105.03 (12) | C21—C20—H20 | 119.6 |
C9—C8—H8 | 127.5 | C19—C20—H20 | 119.6 |
C7—C8—H8 | 127.5 | C20—C21—C22 | 119.91 (15) |
C8—C9—O1 | 109.84 (12) | C20—C21—H21 | 120.0 |
C8—C9—C10 | 133.67 (14) | C22—C21—H21 | 120.0 |
O1—C9—C10 | 116.44 (13) | C23—C22—C21 | 119.81 (15) |
N2—C10—C9 | 111.65 (11) | C23—C22—H22 | 120.1 |
N2—C10—H10A | 109.3 | C21—C22—H22 | 120.1 |
C9—C10—H10A | 109.3 | C22—C23—C24 | 120.32 (14) |
N2—C10—H10B | 109.3 | C22—C23—H23 | 119.8 |
C9—C10—H10B | 109.3 | C24—C23—H23 | 119.8 |
H10A—C10—H10B | 108.0 | C19—C24—C23 | 120.49 (15) |
O2—C11—N3 | 127.39 (15) | C19—C24—H24 | 119.8 |
O2—C11—N2 | 127.01 (14) | C23—C24—H24 | 119.8 |
N3—C11—N2 | 105.60 (13) | C7—N1—O1 | 105.96 (11) |
C13—C12—N3 | 132.02 (15) | C17—N2—C11 | 110.57 (12) |
C13—C12—C17 | 120.70 (15) | C17—N2—C10 | 126.87 (13) |
N3—C12—C17 | 107.24 (12) | C11—N2—C10 | 122.56 (13) |
C12—C13—C14 | 117.41 (16) | C11—N3—C12 | 110.25 (12) |
C12—C13—H13 | 121.3 | C11—N3—C18 | 122.37 (13) |
C14—C13—H13 | 121.3 | C12—N3—C18 | 126.95 (13) |
C15—C14—C13 | 121.78 (16) | C9—O1—N1 | 108.30 (11) |
C6—C1—C2—C3 | −1.2 (2) | C24—C19—C20—C21 | 0.4 (2) |
Cl1—C1—C2—C3 | 177.46 (12) | C18—C19—C20—C21 | −178.77 (14) |
C1—C2—C3—C4 | 0.1 (2) | C19—C20—C21—C22 | −0.6 (2) |
C2—C3—C4—C5 | 1.3 (2) | C20—C21—C22—C23 | 0.1 (2) |
C2—C3—C4—C7 | −176.27 (13) | C21—C22—C23—C24 | 0.5 (3) |
C3—C4—C5—C6 | −1.6 (2) | C20—C19—C24—C23 | 0.3 (2) |
C7—C4—C5—C6 | 175.95 (13) | C18—C19—C24—C23 | 179.41 (15) |
C2—C1—C6—C5 | 0.9 (2) | C22—C23—C24—C19 | −0.7 (3) |
Cl1—C1—C6—C5 | −177.76 (11) | C8—C7—N1—O1 | −0.27 (17) |
C4—C5—C6—C1 | 0.5 (2) | C4—C7—N1—O1 | 177.18 (12) |
C5—C4—C7—N1 | 176.96 (14) | C16—C17—N2—C11 | 179.49 (14) |
C3—C4—C7—N1 | −5.6 (2) | C12—C17—N2—C11 | 0.00 (15) |
C5—C4—C7—C8 | −6.1 (2) | C16—C17—N2—C10 | −0.9 (2) |
C3—C4—C7—C8 | 171.39 (14) | C12—C17—N2—C10 | 179.61 (12) |
N1—C7—C8—C9 | 0.37 (17) | O2—C11—N2—C17 | −179.88 (14) |
C4—C7—C8—C9 | −176.82 (12) | N3—C11—N2—C17 | −0.18 (15) |
C7—C8—C9—O1 | −0.32 (15) | O2—C11—N2—C10 | 0.5 (2) |
C7—C8—C9—C10 | 177.14 (14) | N3—C11—N2—C10 | −179.80 (12) |
C8—C9—C10—N2 | −96.06 (19) | C9—C10—N2—C17 | 78.91 (18) |
O1—C9—C10—N2 | 81.27 (16) | C9—C10—N2—C11 | −101.52 (15) |
N3—C12—C13—C14 | 177.73 (15) | O2—C11—N3—C12 | 179.99 (15) |
C17—C12—C13—C14 | 0.3 (2) | N2—C11—N3—C12 | 0.29 (15) |
C12—C13—C14—C15 | 1.2 (3) | O2—C11—N3—C18 | −7.1 (2) |
C13—C14—C15—C16 | −1.7 (3) | N2—C11—N3—C18 | 173.20 (12) |
C14—C15—C16—C17 | 0.6 (2) | C13—C12—N3—C11 | −178.00 (15) |
C15—C16—C17—N2 | −178.55 (14) | C17—C12—N3—C11 | −0.30 (15) |
C15—C16—C17—C12 | 0.9 (2) | C13—C12—N3—C18 | 9.5 (2) |
C13—C12—C17—C16 | −1.4 (2) | C17—C12—N3—C18 | −172.80 (13) |
N3—C12—C17—C16 | −179.37 (12) | C19—C18—N3—C11 | −89.12 (17) |
C13—C12—C17—N2 | 178.19 (13) | C19—C18—N3—C12 | 82.55 (18) |
N3—C12—C17—N2 | 0.18 (14) | C8—C9—O1—N1 | 0.17 (16) |
N3—C18—C19—C24 | −104.54 (17) | C10—C9—O1—N1 | −177.78 (12) |
N3—C18—C19—C20 | 74.59 (18) | C7—N1—O1—C9 | 0.07 (17) |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20···O2i | 0.93 | 2.53 | 3.1949 (19) | 129 |
Symmetry code: (i) −x+1, −y+2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20···O2i | 0.93 | 2.53 | 3.1949 (19) | 128.5 |
Symmetry code: (i) −x+1, −y+2, −z+1. |
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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.
Isoxazoline derivatives have attracted considerable attention and are found in many important bioactive heterocycles. These pharmacophores play an important role in medicinal (Sakuma et al., 2011, Wang et al., 2010) and agrochemical industry (Hu et al., 2010). The integration of isoxazoline moiety in benzimidazole scaffolds may lead to new hybrid molecules containing two pharmacophores in the same molecule with broad biological activity profiles.
As a continuation of our research work devoted to the development of substituted benzimidazol-2-one derivatives (Belaziz et al., 2012), we report in this paper the synthesis of a new isoxazolinylmethyl benzimidazole derivatives. The title compound was obtained by using p-chlorobenzaldoxime to react with the 1-allyl-3-benzyl-benzimidazole in 1,3-dipolar cycloaddition.
The title compound is build up from a fused five- and six-membered rings linked, on opposite sides, to a benzyl residue and to a chlorobenzyl- dihydroisoxazole residue (Fig. 1). The benzimidazole plane makes dihedral angles of 75.95 (7) ° and 73.04 (8) ° with the phenyl ring and the isoxazole ring, respectively. The dihedral angle between the chlorophenyl ring and the isoxazole ring is of 7.95 (8) ° while that between the two aromatic six-membered rings is 68.48 (8)°.
In the crystal, the molecules are linked by C–H···O hydrogen bonds to centrosymmetric dimers (Fig. 2 and Table 2).