organic compounds
3-(2,4-Dichlorophenoxy)-1-(4-methoxybenzyl)-4-(4-nitrophenyl)azetidin-2-one
aIlke Education and Health Foundation, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa, Ürgüp, Nevşehir, Turkey, bDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, cDepartment of Chemistry, College of Sciences, Shiraz University, 71454 Shiraz, Iran, and dDepartment of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, 55139 Samsun, Turkey
*Correspondence e-mail: akkurt@erciyes.edu.tr
The β-lactam ring of the title compound, C23H18Cl2N2O5, is nearly planar [maximum deviation = 0.019 (2) Å for the N atom] and its mean plane makes dihedral angles of 56.86 (15), 68.83 (15) and 83.75 (15)° with the dichloro-, nitro- and methoxy-substituted benzene rings, respectively. In the crystal, molecules are linked by pairs of C—H⋯O hydrogen bonds, forming inversion dimers with R22(10) loops. The dimers are linked by further C—H⋯O hydrogen bonds, forming sheets lying parallel to (001). The molecular packing is further stabilized by C—H⋯π interactions.
Keywords: crystal structure.
CCDC reference: 1010327
Related literature
For general background to β-lactams, see: Schunk & Enders (2000); France et al. (2004); Pitts & Lectka (2014); Arya et al. (2014); Banik et al. (2003); Delpiccolo et al. (2003); Hodous & Fu (2002). For the crystal structures of some β-lactams, see: Akkurt et al. (2011); Butcher et al. (2011).
Experimental
Crystal data
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Data collection: X-AREA (Stoe & Cie, 2002); cell X-AREA; data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS2013 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: WinGX (Farrugia, 2012).
Supporting information
CCDC reference: 1010327
10.1107/S1600536814015013/su2747sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814015013/su2747Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814015013/su2747Isup3.cml
A mixture of N-(4-nitrobenzylidene) (4-methoxyphenyl) methanamine (0.27 g, 1.00 mmol), 2,4-dichlorophenoxyacetic acid (0.34 g, 1.50 mmol), tosyl chloride (0.28 g, 1.50 mmol) and triethylamine (0.25 g, 2.50 mmol) in dry CH2Cl2 was stirred at room temperature overnight. After completion of the reaction, monitored by TLC, the mixture was washed with HCl (1 N), saturated sodium bicarbonate solution, brine, dried over anhydrous Na2SO4 and the solvent was then evaporated under vacuum to afford the crude product. This was purified by recrystallization from EtOAc giving pale yellow prismatic crystals on slow evaporation of the solvent (yield 72%). M.p. 397 - 399 K. Spectroscopic data for the title compound are given in the archived CIF.
All the H atoms were positioned geometrically and refined using a riding model: C—H = 0.93 - 0.98 Å with Uiso(H) = 1.2Ueq(C).
Data collection: X-AREA (Stoe & Cie, 2002); cell
X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS2013 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: WinGX (Farrugia, 2012).Fig. 1. The molecular structure of the title molecule, with atom labelling. Displacement ellipsoids are drawn at the 30% probability level. | |
Fig. 2. A view along the a axis of the crystal packing of the title compound. Hydrogen bonds are shown as dashed lines (see Table 1 for details). |
C23H18Cl2N2O5 | F(000) = 976 |
Mr = 473.29 | Dx = 1.478 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 10788 reflections |
a = 5.0716 (5) Å | θ = 1.4–28.4° |
b = 20.9390 (12) Å | µ = 0.35 mm−1 |
c = 20.1516 (18) Å | T = 296 K |
β = 96.457 (7)° | Prism, pale yellow |
V = 2126.4 (3) Å3 | 0.59 × 0.28 × 0.06 mm |
Z = 4 |
Stoe IPDS 2 diffractometer | 4179 independent reflections |
Radiation source: sealed X-ray tube, 12 x 0.4 mm long-fine focus | 2123 reflections with I > 2σ(I) |
Plane graphite monochromator | Rint = 0.062 |
Detector resolution: 6.67 pixels mm-1 | θmax = 26.0°, θmin = 1.4° |
ω scans | h = −6→6 |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | k = −25→25 |
Tmin = 0.901, Tmax = 0.972 | l = −24→24 |
15060 measured reflections |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.042 | H-atom parameters constrained |
wR(F2) = 0.061 | w = 1/[σ2(Fo2) + (0.0162P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.85 | (Δ/σ)max < 0.001 |
4179 reflections | Δρmax = 0.16 e Å−3 |
289 parameters | Δρmin = −0.19 e Å−3 |
C23H18Cl2N2O5 | V = 2126.4 (3) Å3 |
Mr = 473.29 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 5.0716 (5) Å | µ = 0.35 mm−1 |
b = 20.9390 (12) Å | T = 296 K |
c = 20.1516 (18) Å | 0.59 × 0.28 × 0.06 mm |
β = 96.457 (7)° |
Stoe IPDS 2 diffractometer | 4179 independent reflections |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | 2123 reflections with I > 2σ(I) |
Tmin = 0.901, Tmax = 0.972 | Rint = 0.062 |
15060 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.061 | H-atom parameters constrained |
S = 0.85 | Δρmax = 0.16 e Å−3 |
4179 reflections | Δρmin = −0.19 e Å−3 |
289 parameters |
Experimental. Spectroscopic data for the title compound: IR (KBr, cm-1): 1758 (CO β-lactam), 1352, 1520 (NO2). 1H-NMR (CDCl3) δ (p.p.m.): 3.78 (OMe, s, 3H), 3.94 (CH2, d, J =14.6 Hz, 1H), 4.78 (CH2, d, J = 14.6 Hz, 1H), 4.85 (H-4, d, J = 4.8 Hz, 1H), 5.38 (H-3, d, J = 4.8 Hz, 1H), 6.80 (ArH, d, J = 8.7 Hz, 2H), 7.00 (ArH, d, J = 8.8 Hz, 1H), 7.03 (ArH, d, J = 8.7 Hz, 2H), 7.08 (ArH, d, J = 8.8 Hz, 1H), 7.19 (ArH, s, 1H), 7.45 (ArH, d, J = 8.8 Hz, 2H), 8.17 (ArH, d, J = 8.8 Hz, 2H). 13C-NMR (CDCl3) δ (p.p.m.): 44.4 (CH2), 55.3 (OMe) 59.8 (C-4), 82.5 (C-3), 114.3, 116.2, 123.4, 123.8, 125.8, 127.5, 127.7, 129.4, 130.0, 130.1, 140.3, 148.1, 151.1, 159.5 (aromatic carbon), 164.36 (CO β-lactam). MS m/z = 472 [M+]. |
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 | ||
Cl1 | 0.91503 (14) | 0.22124 (4) | 0.29769 (3) | 0.0722 (3) | |
Cl2 | 0.23669 (16) | 0.35928 (3) | 0.13099 (3) | 0.0705 (3) | |
O1 | 0.2489 (4) | 0.10566 (8) | 0.01887 (8) | 0.0716 (7) | |
O2 | 0.0396 (3) | 0.23885 (7) | 0.08223 (8) | 0.0598 (6) | |
O3 | −0.2578 (5) | 0.50783 (10) | −0.05297 (12) | 0.1058 (10) | |
O4 | 0.0490 (5) | 0.48354 (10) | −0.11293 (12) | 0.1037 (10) | |
O5 | −0.9069 (4) | −0.04073 (8) | −0.20251 (9) | 0.0712 (7) | |
N1 | −0.0881 (4) | 0.15859 (8) | −0.04739 (9) | 0.0501 (7) | |
N2 | −0.1189 (6) | 0.46924 (12) | −0.07734 (13) | 0.0730 (11) | |
C1 | 0.0631 (5) | 0.14198 (12) | 0.00884 (11) | 0.0488 (9) | |
C2 | −0.0932 (5) | 0.18554 (11) | 0.05155 (11) | 0.0499 (9) | |
C3 | −0.2519 (5) | 0.20533 (11) | −0.01636 (11) | 0.0493 (8) | |
C4 | 0.2330 (5) | 0.23048 (11) | 0.13478 (11) | 0.0484 (9) | |
C5 | 0.3203 (5) | 0.17250 (12) | 0.16032 (11) | 0.0560 (9) | |
C6 | 0.5282 (5) | 0.16962 (12) | 0.21112 (11) | 0.0559 (10) | |
C7 | 0.6458 (5) | 0.22470 (13) | 0.23584 (11) | 0.0518 (9) | |
C8 | 0.5564 (5) | 0.28303 (12) | 0.21190 (11) | 0.0561 (9) | |
C9 | 0.3495 (5) | 0.28593 (11) | 0.16161 (10) | 0.0493 (9) | |
C10 | −0.2222 (4) | 0.27389 (11) | −0.03557 (10) | 0.0438 (8) | |
C11 | −0.3762 (5) | 0.31962 (12) | −0.00929 (12) | 0.0576 (10) | |
C12 | −0.3445 (6) | 0.38355 (13) | −0.02211 (13) | 0.0638 (11) | |
C13 | −0.1588 (6) | 0.40110 (12) | −0.06275 (12) | 0.0536 (10) | |
C14 | −0.0052 (5) | 0.35691 (13) | −0.09064 (12) | 0.0588 (10) | |
C15 | −0.0372 (5) | 0.29338 (12) | −0.07617 (11) | 0.0547 (9) | |
C16 | −0.0924 (5) | 0.13434 (12) | −0.11484 (10) | 0.0558 (9) | |
C17 | −0.3177 (5) | 0.08960 (11) | −0.13711 (11) | 0.0465 (9) | |
C18 | −0.4539 (5) | 0.09594 (11) | −0.19956 (11) | 0.0526 (9) | |
C19 | −0.6509 (5) | 0.05349 (12) | −0.22383 (11) | 0.0540 (9) | |
C20 | −0.7172 (5) | 0.00404 (12) | −0.18411 (13) | 0.0529 (9) | |
C21 | −0.5827 (6) | −0.00258 (12) | −0.12111 (13) | 0.0647 (10) | |
C22 | −0.3856 (5) | 0.03948 (12) | −0.09822 (12) | 0.0614 (10) | |
C23 | −1.0492 (6) | −0.03553 (13) | −0.26693 (14) | 0.0812 (12) | |
H2 | −0.20000 | 0.16210 | 0.08110 | 0.0600* | |
H3 | −0.43840 | 0.19230 | −0.01930 | 0.0590* | |
H5 | 0.23980 | 0.13510 | 0.14350 | 0.0670* | |
H6 | 0.58760 | 0.13030 | 0.22830 | 0.0670* | |
H8 | 0.63500 | 0.32040 | 0.22950 | 0.0670* | |
H11 | −0.50410 | 0.30700 | 0.01770 | 0.0690* | |
H12 | −0.44720 | 0.41410 | −0.00350 | 0.0770* | |
H14 | 0.11830 | 0.36960 | −0.11880 | 0.0710* | |
H15 | 0.06820 | 0.26310 | −0.09420 | 0.0660* | |
H16A | 0.07350 | 0.11230 | −0.11850 | 0.0670* | |
H16B | −0.10090 | 0.17030 | −0.14530 | 0.0670* | |
H18 | −0.41260 | 0.12980 | −0.22640 | 0.0630* | |
H19 | −0.73760 | 0.05840 | −0.26670 | 0.0650* | |
H21 | −0.62600 | −0.03590 | −0.09380 | 0.0780* | |
H22 | −0.29650 | 0.03400 | −0.05570 | 0.0740* | |
H23A | −1.17560 | −0.06970 | −0.27350 | 0.1210* | |
H23B | −1.14060 | 0.00470 | −0.27080 | 0.1210* | |
H23C | −0.92780 | −0.03800 | −0.30010 | 0.1210* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0632 (5) | 0.0887 (5) | 0.0622 (4) | −0.0012 (4) | −0.0041 (3) | 0.0047 (4) |
Cl2 | 0.1082 (6) | 0.0417 (4) | 0.0589 (4) | 0.0053 (4) | −0.0028 (4) | −0.0010 (3) |
O1 | 0.0839 (15) | 0.0666 (12) | 0.0620 (11) | 0.0211 (12) | −0.0019 (10) | −0.0016 (10) |
O2 | 0.0835 (13) | 0.0417 (10) | 0.0498 (10) | −0.0014 (9) | −0.0113 (9) | −0.0032 (8) |
O3 | 0.136 (2) | 0.0596 (14) | 0.1232 (19) | 0.0290 (15) | 0.0202 (16) | 0.0043 (13) |
O4 | 0.138 (2) | 0.0701 (15) | 0.1078 (18) | −0.0071 (14) | 0.0353 (16) | 0.0130 (13) |
O5 | 0.0738 (13) | 0.0555 (11) | 0.0812 (13) | −0.0087 (11) | −0.0044 (10) | −0.0089 (10) |
N1 | 0.0607 (14) | 0.0447 (12) | 0.0437 (12) | 0.0053 (11) | 0.0008 (11) | −0.0081 (9) |
N2 | 0.090 (2) | 0.0609 (19) | 0.0651 (17) | 0.0106 (17) | −0.0044 (14) | 0.0040 (14) |
C1 | 0.0589 (19) | 0.0406 (14) | 0.0465 (15) | −0.0059 (14) | 0.0046 (14) | 0.0002 (13) |
C2 | 0.0589 (17) | 0.0437 (15) | 0.0474 (14) | −0.0096 (13) | 0.0075 (13) | −0.0017 (12) |
C3 | 0.0402 (15) | 0.0532 (15) | 0.0548 (14) | −0.0045 (13) | 0.0068 (12) | −0.0074 (13) |
C4 | 0.0645 (17) | 0.0472 (15) | 0.0338 (12) | 0.0010 (14) | 0.0067 (12) | −0.0024 (12) |
C5 | 0.0755 (19) | 0.0424 (15) | 0.0492 (15) | −0.0051 (15) | 0.0025 (14) | −0.0012 (12) |
C6 | 0.072 (2) | 0.0489 (16) | 0.0470 (15) | 0.0060 (15) | 0.0072 (14) | 0.0036 (12) |
C7 | 0.0547 (17) | 0.0572 (17) | 0.0439 (14) | −0.0010 (15) | 0.0075 (12) | −0.0019 (13) |
C8 | 0.0727 (18) | 0.0465 (16) | 0.0496 (15) | −0.0083 (15) | 0.0087 (13) | −0.0078 (13) |
C9 | 0.0691 (18) | 0.0409 (15) | 0.0381 (13) | −0.0018 (14) | 0.0071 (13) | −0.0026 (11) |
C10 | 0.0395 (14) | 0.0495 (15) | 0.0419 (13) | 0.0010 (14) | 0.0020 (11) | −0.0058 (12) |
C11 | 0.0569 (18) | 0.0614 (18) | 0.0568 (15) | 0.0101 (15) | 0.0164 (13) | −0.0009 (14) |
C12 | 0.068 (2) | 0.0553 (18) | 0.0683 (18) | 0.0209 (15) | 0.0080 (16) | −0.0036 (14) |
C13 | 0.0605 (19) | 0.0469 (17) | 0.0505 (15) | 0.0055 (15) | −0.0067 (14) | 0.0030 (13) |
C14 | 0.0599 (19) | 0.0576 (17) | 0.0602 (16) | 0.0011 (16) | 0.0123 (14) | 0.0032 (14) |
C15 | 0.0550 (17) | 0.0492 (17) | 0.0611 (15) | 0.0059 (14) | 0.0118 (14) | −0.0051 (13) |
C16 | 0.0653 (18) | 0.0551 (16) | 0.0463 (14) | 0.0029 (15) | 0.0034 (12) | −0.0103 (13) |
C17 | 0.0563 (17) | 0.0410 (14) | 0.0417 (14) | 0.0041 (13) | 0.0037 (12) | −0.0066 (12) |
C18 | 0.0659 (18) | 0.0450 (15) | 0.0460 (15) | 0.0013 (14) | 0.0029 (13) | 0.0012 (12) |
C19 | 0.0637 (18) | 0.0499 (16) | 0.0455 (14) | 0.0027 (14) | −0.0061 (13) | −0.0033 (13) |
C20 | 0.0568 (17) | 0.0396 (15) | 0.0610 (17) | 0.0043 (14) | 0.0004 (14) | −0.0092 (13) |
C21 | 0.087 (2) | 0.0469 (15) | 0.0570 (17) | −0.0076 (16) | −0.0059 (15) | 0.0051 (13) |
C22 | 0.082 (2) | 0.0517 (16) | 0.0470 (15) | 0.0020 (16) | −0.0084 (14) | 0.0000 (13) |
C23 | 0.070 (2) | 0.076 (2) | 0.092 (2) | −0.0058 (17) | −0.0155 (17) | −0.0193 (17) |
Cl1—C7 | 1.744 (2) | C14—C15 | 1.375 (4) |
Cl2—C9 | 1.729 (2) | C16—C17 | 1.506 (3) |
O1—C1 | 1.210 (3) | C17—C18 | 1.372 (3) |
O2—C2 | 1.410 (3) | C17—C22 | 1.377 (3) |
O2—C4 | 1.371 (3) | C18—C19 | 1.385 (3) |
O3—N2 | 1.212 (4) | C19—C20 | 1.374 (4) |
O4—N2 | 1.211 (4) | C20—C21 | 1.379 (4) |
O5—C20 | 1.364 (3) | C21—C22 | 1.373 (4) |
O5—C23 | 1.417 (3) | C2—H2 | 0.9800 |
N1—C1 | 1.341 (3) | C3—H3 | 0.9800 |
N1—C3 | 1.468 (3) | C5—H5 | 0.9300 |
N1—C16 | 1.449 (3) | C6—H6 | 0.9300 |
N2—C13 | 1.475 (4) | C8—H8 | 0.9300 |
C1—C2 | 1.534 (3) | C11—H11 | 0.9300 |
C2—C3 | 1.564 (3) | C12—H12 | 0.9300 |
C3—C10 | 1.499 (3) | C14—H14 | 0.9300 |
C4—C5 | 1.372 (3) | C15—H15 | 0.9300 |
C4—C9 | 1.385 (3) | C16—H16A | 0.9700 |
C5—C6 | 1.386 (3) | C16—H16B | 0.9700 |
C6—C7 | 1.367 (4) | C18—H18 | 0.9300 |
C7—C8 | 1.371 (4) | C19—H19 | 0.9300 |
C8—C9 | 1.376 (3) | C21—H21 | 0.9300 |
C10—C11 | 1.379 (3) | C22—H22 | 0.9300 |
C10—C15 | 1.374 (3) | C23—H23A | 0.9600 |
C11—C12 | 1.376 (4) | C23—H23B | 0.9600 |
C12—C13 | 1.366 (4) | C23—H23C | 0.9600 |
C13—C14 | 1.370 (4) | ||
C2—O2—C4 | 120.15 (17) | O5—C20—C19 | 124.8 (2) |
C20—O5—C23 | 117.9 (2) | O5—C20—C21 | 116.2 (2) |
C1—N1—C3 | 96.33 (18) | C19—C20—C21 | 119.0 (2) |
C1—N1—C16 | 130.5 (2) | C20—C21—C22 | 120.7 (2) |
C3—N1—C16 | 133.13 (19) | C17—C22—C21 | 121.2 (2) |
O3—N2—O4 | 123.7 (3) | O2—C2—H2 | 114.00 |
O3—N2—C13 | 117.7 (3) | C1—C2—H2 | 113.00 |
O4—N2—C13 | 118.6 (3) | C3—C2—H2 | 114.00 |
O1—C1—N1 | 131.7 (2) | N1—C3—H3 | 112.00 |
O1—C1—C2 | 136.2 (2) | C2—C3—H3 | 112.00 |
N1—C1—C2 | 92.14 (19) | C10—C3—H3 | 112.00 |
O2—C2—C1 | 117.7 (2) | C4—C5—H5 | 120.00 |
O2—C2—C3 | 110.33 (18) | C6—C5—H5 | 120.00 |
C1—C2—C3 | 85.08 (17) | C5—C6—H6 | 120.00 |
N1—C3—C2 | 86.32 (17) | C7—C6—H6 | 120.00 |
N1—C3—C10 | 116.77 (19) | C7—C8—H8 | 120.00 |
C2—C3—C10 | 115.03 (19) | C9—C8—H8 | 120.00 |
O2—C4—C5 | 125.1 (2) | C10—C11—H11 | 119.00 |
O2—C4—C9 | 115.5 (2) | C12—C11—H11 | 119.00 |
C5—C4—C9 | 119.3 (2) | C11—C12—H12 | 121.00 |
C4—C5—C6 | 120.1 (2) | C13—C12—H12 | 121.00 |
C5—C6—C7 | 119.8 (2) | C13—C14—H14 | 121.00 |
Cl1—C7—C6 | 120.0 (2) | C15—C14—H14 | 121.00 |
Cl1—C7—C8 | 119.3 (2) | C10—C15—H15 | 119.00 |
C6—C7—C8 | 120.7 (2) | C14—C15—H15 | 119.00 |
C7—C8—C9 | 119.5 (2) | N1—C16—H16A | 108.00 |
Cl2—C9—C4 | 119.74 (18) | N1—C16—H16B | 108.00 |
Cl2—C9—C8 | 119.78 (18) | C17—C16—H16A | 108.00 |
C4—C9—C8 | 120.5 (2) | C17—C16—H16B | 108.00 |
C3—C10—C11 | 119.2 (2) | H16A—C16—H16B | 107.00 |
C3—C10—C15 | 122.2 (2) | C17—C18—H18 | 119.00 |
C11—C10—C15 | 118.5 (2) | C19—C18—H18 | 119.00 |
C10—C11—C12 | 121.4 (2) | C18—C19—H19 | 120.00 |
C11—C12—C13 | 118.5 (3) | C20—C19—H19 | 120.00 |
N2—C13—C12 | 119.9 (2) | C20—C21—H21 | 120.00 |
N2—C13—C14 | 118.3 (2) | C22—C21—H21 | 120.00 |
C12—C13—C14 | 121.8 (2) | C17—C22—H22 | 119.00 |
C13—C14—C15 | 118.7 (2) | C21—C22—H22 | 119.00 |
C10—C15—C14 | 121.2 (2) | O5—C23—H23A | 109.00 |
N1—C16—C17 | 115.36 (19) | O5—C23—H23B | 109.00 |
C16—C17—C18 | 120.0 (2) | O5—C23—H23C | 109.00 |
C16—C17—C22 | 122.3 (2) | H23A—C23—H23B | 110.00 |
C18—C17—C22 | 117.6 (2) | H23A—C23—H23C | 110.00 |
C17—C18—C19 | 122.1 (2) | H23B—C23—H23C | 109.00 |
C18—C19—C20 | 119.5 (2) | ||
C2—O2—C4—C5 | 2.3 (3) | O2—C4—C5—C6 | 176.2 (2) |
C4—O2—C2—C1 | −71.2 (3) | C5—C4—C9—C8 | 2.1 (4) |
C4—O2—C2—C3 | −166.47 (19) | O2—C4—C9—Cl2 | 3.1 (3) |
C2—O2—C4—C9 | −179.5 (2) | C9—C4—C5—C6 | −1.9 (4) |
C23—O5—C20—C21 | −180.0 (2) | C4—C5—C6—C7 | 0.1 (4) |
C23—O5—C20—C19 | −1.0 (4) | C5—C6—C7—Cl1 | −177.73 (19) |
C16—N1—C1—C2 | −173.9 (2) | C5—C6—C7—C8 | 1.4 (4) |
C3—N1—C1—O1 | −177.6 (3) | C6—C7—C8—C9 | −1.2 (4) |
C1—N1—C16—C17 | 103.0 (3) | Cl1—C7—C8—C9 | 177.94 (18) |
C3—N1—C16—C17 | −72.5 (3) | C7—C8—C9—Cl2 | −179.75 (19) |
C16—N1—C3—C10 | −70.0 (3) | C7—C8—C9—C4 | −0.5 (4) |
C1—N1—C3—C2 | −2.85 (19) | C3—C10—C15—C14 | −177.0 (2) |
C16—N1—C3—C2 | 173.8 (2) | C3—C10—C11—C12 | 175.9 (2) |
C3—N1—C1—C2 | 2.90 (19) | C11—C10—C15—C14 | −0.1 (3) |
C1—N1—C3—C10 | 113.4 (2) | C15—C10—C11—C12 | −1.1 (4) |
C16—N1—C1—O1 | 5.7 (5) | C10—C11—C12—C13 | 1.1 (4) |
O4—N2—C13—C14 | −0.5 (4) | C11—C12—C13—N2 | −179.8 (2) |
O3—N2—C13—C12 | −1.0 (4) | C11—C12—C13—C14 | 0.0 (4) |
O4—N2—C13—C12 | 179.2 (3) | N2—C13—C14—C15 | 178.7 (2) |
O3—N2—C13—C14 | 179.2 (3) | C12—C13—C14—C15 | −1.1 (4) |
N1—C1—C2—C3 | −2.72 (18) | C13—C14—C15—C10 | 1.2 (4) |
O1—C1—C2—O2 | 67.4 (4) | N1—C16—C17—C22 | −47.4 (3) |
O1—C1—C2—C3 | 177.8 (3) | N1—C16—C17—C18 | 136.2 (2) |
N1—C1—C2—O2 | −113.1 (2) | C16—C17—C22—C21 | −176.6 (2) |
C1—C2—C3—N1 | 2.49 (16) | C18—C17—C22—C21 | −0.1 (4) |
O2—C2—C3—C10 | 2.4 (3) | C16—C17—C18—C19 | 175.8 (2) |
C1—C2—C3—C10 | −115.4 (2) | C22—C17—C18—C19 | −0.8 (4) |
O2—C2—C3—N1 | 120.25 (19) | C17—C18—C19—C20 | 1.3 (4) |
C2—C3—C10—C15 | 94.1 (3) | C18—C19—C20—C21 | −0.9 (4) |
N1—C3—C10—C15 | −4.9 (3) | C18—C19—C20—O5 | −179.9 (2) |
C2—C3—C10—C11 | −82.7 (3) | O5—C20—C21—C22 | 179.1 (2) |
N1—C3—C10—C11 | 178.3 (2) | C19—C20—C21—C22 | 0.0 (4) |
C5—C4—C9—Cl2 | −178.70 (19) | C20—C21—C22—C17 | 0.5 (4) |
O2—C4—C9—C8 | −176.2 (2) |
Cg is the centroid of the C17–C22 benzene ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···O1i | 0.98 | 2.58 | 3.417 (3) | 143 |
C6—H6···O5ii | 0.93 | 2.57 | 3.328 (3) | 139 |
C12—H12···O3iii | 0.93 | 2.57 | 3.495 (4) | 176 |
C16—H16A···Cgiv | 0.97 | 2.70 | 3.649 (3) | 166 |
Symmetry codes: (i) x−1, y, z; (ii) −x, −y, −z; (iii) −x−1, −y+1, −z; (iv) x+1, y, z. |
Cg is the centroid of the C17–C22 benzene ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···O1i | 0.98 | 2.58 | 3.417 (3) | 143 |
C6—H6···O5ii | 0.93 | 2.57 | 3.328 (3) | 139 |
C12—H12···O3iii | 0.93 | 2.57 | 3.495 (4) | 176 |
C16—H16A···Cgiv | 0.97 | 2.70 | 3.649 (3) | 166 |
Symmetry codes: (i) x−1, y, z; (ii) −x, −y, −z; (iii) −x−1, −y+1, −z; (iv) x+1, y, z. |
Acknowledgements
The authors acknowledge the Faculty of Arts and Sciences, Ondokuz Mayıs University, Turkey, for the use of the Stoe IPDS 2 diffractometer (purchased under grant F.279 of the University Research Fund). AJ and RH thank the Shiraz University Research Council for financial support.
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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 β-lactam (2-azetidinone) ring is the most well known heterocycle to have been studied during the last century (Pitts & Lectka, 2014; France et al., 2004; Arya et al., 2014). The β-lactam framework is the structural element of a large class of broad-spectrum antibiotics such as penicillins, cephalosporins and monobactams (Delpiccolo et al., 2003; Schunk & Enders, 2000; Banik et al., 2003), that effectively combat bacterial infections (Schunk & Enders, 2000). However, the need for new antibiotics has been growing, as a result of the rapid emergence of bacterial strains' resistance to traditional drugs (Hodous & Fu, 2002; Delpiccolo et al., 2003). Therefore, in continuation of our research on the synthesis of β-lactams, we describe herein the synthesis and crystal structure of the title compound.
In the title molecule, Fig. 1, the β-lactam ring (N1/C1–C3) is nearly planar with a maximum deviation of -0.016 (1) Å for atom N1. The mean plane of this four-membered β-lactam ring is twisted from the planes of the dichloro-, nitro- and methoxy substituted benzene rings, making the dihedral angles of 56.86 (15), 68.83 (15) and 83.75 (15)°, respectively. The bond lengths and bond angles are within normal values and are comparable with those reported for similar compounds (Akkurt et al., 2011; Butcher et al., 2011).
In the crystal, molecules are linked by a pair of C—H···O hydrogen bonds forming inversion dimers with R22(10) loops (Table 1 and Fig. 2). The dimers are linked by further C-H···O hydrogen bonds forming sheets lying parallel to (001). The molecular packing is further stabilized by C—H···π interactions (Table 1).