organic compounds
Ethyl 4-anilino-2,6-bis(4-chlorophenyl)-1-phenyl-1,2,5,6-tetrahydropyridine-3-carboxylate
aDepartment of Chemistry, College of Science, China University of Petroleum, Qingdao 266555, People's Republic of China, and bState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266555, People's Republic of China
*Correspondence e-mail: zfyancat@163.com
The title compound, C32H28Cl2N2O2, was synthesized by a multicomponent reaction of 4-chlorobenzaldehyde, aniline and ethyl acetoacetate. The central 1,2,5,6-tetrahydropyridine ring exhibits a distorted boat conformation and the two chlorophenyl rings attached to the central ring at positions 2 and 6 are oriented in opposite directions. The two O atoms of the ethoxycarbonyl group are involved in intramolecular N—H⋯O and C—H⋯O hydrogen bonds. In the crystal, weak C—H⋯O hydrogen bonds link molecules related by translation along the b axis into chains.
Related literature
For applications of functionalized piperidines, see: Viegas et al. (2004); Kobayashi et al. (1999). For the crystal structures of related compounds, see: Khan et al. (2008); Brahmachari & Das (2012).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2007); cell SAINT (Bruker, 2007); 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/S1600536813013573/cv5409sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813013573/cv5409Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813013573/cv5409Isup3.cml
A 50 ml flask was charged with a magnetic stir bar, p-chlorobenzaldehyde (5 mmol), ethylacetoacetate (2.5 mmol) and bismuth nitrate (0.005 mmol) in 10 ml e thanol; the mixture was then started to stir at room temperature. After 1 h min, p-chlorobenzaldehyde (5 mmol) was added to the reaction mixture and stirring was continued up to completion of the reaction as monitored by TLC. After completion of the reaction, a thick precipitate was obtained. The solid was dissolved in hot ethyl acetate-ethanol mixture, the filtrate on standing afforded crystals of the pure product.
All H atoms were placed in geometrically idealized positions (C—H 0.93–0.97 Å, N—H 0.86 Å) and treated as riding on their parent atoms, with Uiso(H) = 1.2–1.5Ueq(C, N).
Data collection: SMART (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); 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).Fig. 1. The molecular structure of the title compound showing the atomic numbering and 30% probabilty displacement ellipsoids. H atoms omitted for clarity. |
C32H28Cl2N2O2 | Z = 2 |
Mr = 543.46 | F(000) = 568 |
Triclinic, P1 | Dx = 1.312 Mg m−3 |
a = 9.559 (4) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 9.656 (3) Å | Cell parameters from 1798 reflections |
c = 16.392 (6) Å | θ = 2.5–25.5° |
α = 78.584 (6)° | µ = 0.27 mm−1 |
β = 82.056 (6)° | T = 296 K |
γ = 68.390 (6)° | Block, yellow |
V = 1375.3 (8) Å3 | 0.26 × 0.22 × 0.19 mm |
Bruker SMART CCD area-detector diffractometer | 4767 independent reflections |
Radiation source: fine-focus sealed tube | 3177 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
phi and ω scans | θmax = 25.1°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −11→11 |
Tmin = 0.934, Tmax = 0.951 | k = −11→8 |
6863 measured reflections | l = −19→15 |
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)] = 0.070 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.310 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.2P)2 + 0.5326P] where P = (Fo2 + 2Fc2)/3 |
4767 reflections | (Δ/σ)max = 0.019 |
344 parameters | Δρmax = 0.49 e Å−3 |
0 restraints | Δρmin = −0.47 e Å−3 |
C32H28Cl2N2O2 | γ = 68.390 (6)° |
Mr = 543.46 | V = 1375.3 (8) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.559 (4) Å | Mo Kα radiation |
b = 9.656 (3) Å | µ = 0.27 mm−1 |
c = 16.392 (6) Å | T = 296 K |
α = 78.584 (6)° | 0.26 × 0.22 × 0.19 mm |
β = 82.056 (6)° |
Bruker SMART CCD area-detector diffractometer | 4767 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3177 reflections with I > 2σ(I) |
Tmin = 0.934, Tmax = 0.951 | Rint = 0.022 |
6863 measured reflections |
R[F2 > 2σ(F2)] = 0.070 | 0 restraints |
wR(F2) = 0.310 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.49 e Å−3 |
4767 reflections | Δρmin = −0.47 e Å−3 |
344 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 | 1.27799 (17) | 0.38291 (18) | 0.06256 (10) | 0.0849 (6) | |
Cl2 | 0.09798 (15) | 1.31946 (16) | 0.46084 (8) | 0.0691 (5) | |
N1 | 0.6407 (5) | 0.5253 (4) | 0.3247 (2) | 0.0506 (9) | |
H1 | 0.6027 | 0.4977 | 0.2889 | 0.061* | |
N2 | 0.7215 (4) | 0.9294 (4) | 0.2401 (2) | 0.0402 (8) | |
O1 | 0.4493 (4) | 0.6217 (4) | 0.2051 (2) | 0.0678 (10) | |
O2 | 0.4070 (4) | 0.8552 (4) | 0.1351 (2) | 0.0603 (9) | |
C1 | 0.6425 (5) | 0.6679 (5) | 0.3057 (3) | 0.0419 (10) | |
C2 | 0.7482 (5) | 0.7082 (5) | 0.3480 (2) | 0.0421 (9) | |
H2A | 0.8212 | 0.6170 | 0.3754 | 0.051* | |
H2B | 0.6920 | 0.7693 | 0.3902 | 0.051* | |
C3 | 0.8308 (5) | 0.7960 (4) | 0.2840 (2) | 0.0405 (9) | |
H3 | 0.8882 | 0.8310 | 0.3152 | 0.049* | |
C4 | 0.5689 (4) | 0.9325 (4) | 0.2344 (2) | 0.0371 (9) | |
H4 | 0.5410 | 0.9801 | 0.1775 | 0.045* | |
C5 | 0.5638 (4) | 0.7749 (4) | 0.2465 (2) | 0.0388 (9) | |
C6 | 0.6926 (5) | 0.4163 (5) | 0.3953 (3) | 0.0494 (11) | |
C7 | 0.7525 (6) | 0.2653 (5) | 0.3857 (4) | 0.0641 (13) | |
H7 | 0.7638 | 0.2389 | 0.3330 | 0.077* | |
C8 | 0.7951 (8) | 0.1552 (7) | 0.4538 (5) | 0.088 (2) | |
H8 | 0.8324 | 0.0542 | 0.4472 | 0.106* | |
C9 | 0.7834 (9) | 0.1921 (9) | 0.5310 (5) | 0.099 (3) | |
H9 | 0.8170 | 0.1170 | 0.5764 | 0.119* | |
C10 | 0.7204 (7) | 0.3435 (8) | 0.5415 (4) | 0.0806 (18) | |
H10 | 0.7077 | 0.3691 | 0.5945 | 0.097* | |
C11 | 0.6774 (6) | 0.4544 (6) | 0.4736 (3) | 0.0603 (13) | |
H11 | 0.6379 | 0.5553 | 0.4804 | 0.072* | |
C12 | 0.9429 (4) | 0.6958 (4) | 0.2266 (2) | 0.0382 (9) | |
C13 | 0.9158 (5) | 0.7039 (5) | 0.1448 (3) | 0.0454 (10) | |
H13 | 0.8267 | 0.7731 | 0.1235 | 0.054* | |
C14 | 1.0212 (5) | 0.6088 (5) | 0.0943 (3) | 0.0516 (11) | |
H14 | 1.0037 | 0.6157 | 0.0390 | 0.062* | |
C15 | 1.1500 (5) | 0.5056 (5) | 0.1261 (3) | 0.0503 (11) | |
C16 | 1.1801 (5) | 0.4959 (5) | 0.2059 (3) | 0.0584 (13) | |
H16 | 1.2691 | 0.4253 | 0.2267 | 0.070* | |
C17 | 1.0788 (5) | 0.5906 (5) | 0.2554 (3) | 0.0469 (10) | |
H17 | 1.1007 | 0.5850 | 0.3098 | 0.056* | |
C18 | 0.7597 (5) | 1.0556 (4) | 0.2053 (2) | 0.0403 (9) | |
C19 | 0.9054 (5) | 1.0534 (5) | 0.2023 (3) | 0.0464 (10) | |
H19 | 0.9813 | 0.9653 | 0.2230 | 0.056* | |
C20 | 0.9399 (6) | 1.1826 (6) | 0.1684 (3) | 0.0581 (12) | |
H20 | 1.0386 | 1.1794 | 0.1675 | 0.070* | |
C21 | 0.8328 (6) | 1.3126 (5) | 0.1367 (3) | 0.0603 (13) | |
H21 | 0.8570 | 1.3980 | 0.1146 | 0.072* | |
C22 | 0.6888 (6) | 1.3157 (5) | 0.1378 (3) | 0.0541 (12) | |
H22 | 0.6148 | 1.4036 | 0.1151 | 0.065* | |
C23 | 0.6513 (5) | 1.1904 (5) | 0.1721 (3) | 0.0463 (10) | |
H23 | 0.5519 | 1.1959 | 0.1731 | 0.056* | |
C24 | 0.4517 (4) | 1.0286 (4) | 0.2940 (2) | 0.0362 (9) | |
C25 | 0.4924 (5) | 1.0732 (5) | 0.3592 (3) | 0.0504 (11) | |
H25 | 0.5940 | 1.0438 | 0.3683 | 0.060* | |
C26 | 0.3851 (5) | 1.1606 (6) | 0.4112 (3) | 0.0552 (12) | |
H26 | 0.4137 | 1.1895 | 0.4552 | 0.066* | |
C27 | 0.2356 (5) | 1.2047 (5) | 0.3973 (3) | 0.0472 (10) | |
C28 | 0.1902 (5) | 1.1639 (5) | 0.3319 (3) | 0.0502 (11) | |
H28 | 0.0886 | 1.1953 | 0.3223 | 0.060* | |
C29 | 0.2995 (5) | 1.0758 (5) | 0.2818 (3) | 0.0462 (10) | |
H29 | 0.2705 | 1.0466 | 0.2379 | 0.055* | |
C30 | 0.4708 (5) | 0.7404 (5) | 0.1958 (3) | 0.0453 (10) | |
C31 | 0.3141 (7) | 0.8271 (7) | 0.0817 (4) | 0.0794 (18) | |
H31A | 0.2309 | 0.8039 | 0.1148 | 0.095* | |
H31B | 0.3736 | 0.7420 | 0.0538 | 0.095* | |
C32 | 0.2570 (9) | 0.9630 (8) | 0.0205 (4) | 0.096 (2) | |
H32A | 0.1894 | 1.0437 | 0.0483 | 0.145* | |
H32B | 0.2042 | 0.9438 | −0.0193 | 0.145* | |
H32C | 0.3399 | 0.9908 | −0.0079 | 0.145* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0700 (10) | 0.0711 (10) | 0.0914 (11) | 0.0050 (7) | 0.0067 (8) | −0.0297 (8) |
Cl2 | 0.0595 (8) | 0.0782 (9) | 0.0611 (8) | −0.0053 (6) | 0.0006 (6) | −0.0325 (7) |
N1 | 0.065 (2) | 0.0365 (19) | 0.056 (2) | −0.0222 (17) | −0.0190 (18) | −0.0033 (16) |
N2 | 0.0390 (18) | 0.0324 (17) | 0.049 (2) | −0.0133 (14) | −0.0061 (15) | −0.0038 (14) |
O1 | 0.076 (2) | 0.0438 (19) | 0.095 (3) | −0.0248 (17) | −0.043 (2) | −0.0047 (18) |
O2 | 0.079 (2) | 0.0481 (18) | 0.059 (2) | −0.0205 (17) | −0.0343 (17) | −0.0056 (15) |
C1 | 0.049 (2) | 0.037 (2) | 0.044 (2) | −0.0191 (18) | −0.0037 (18) | −0.0065 (17) |
C2 | 0.045 (2) | 0.044 (2) | 0.039 (2) | −0.0160 (19) | −0.0061 (17) | −0.0052 (17) |
C3 | 0.050 (2) | 0.035 (2) | 0.041 (2) | −0.0171 (18) | −0.0121 (18) | −0.0060 (17) |
C4 | 0.037 (2) | 0.037 (2) | 0.039 (2) | −0.0149 (17) | −0.0053 (16) | −0.0046 (16) |
C5 | 0.038 (2) | 0.036 (2) | 0.044 (2) | −0.0111 (17) | −0.0048 (17) | −0.0114 (17) |
C6 | 0.050 (3) | 0.041 (2) | 0.059 (3) | −0.023 (2) | −0.011 (2) | 0.005 (2) |
C7 | 0.069 (3) | 0.046 (3) | 0.080 (4) | −0.023 (2) | −0.012 (3) | −0.004 (2) |
C8 | 0.085 (4) | 0.051 (3) | 0.126 (6) | −0.028 (3) | −0.035 (4) | 0.018 (4) |
C9 | 0.106 (5) | 0.088 (5) | 0.105 (6) | −0.053 (4) | −0.041 (4) | 0.044 (4) |
C10 | 0.080 (4) | 0.103 (5) | 0.062 (3) | −0.047 (4) | −0.009 (3) | 0.011 (3) |
C11 | 0.057 (3) | 0.068 (3) | 0.053 (3) | −0.026 (3) | 0.007 (2) | −0.003 (2) |
C12 | 0.038 (2) | 0.031 (2) | 0.044 (2) | −0.0117 (17) | −0.0122 (16) | 0.0014 (16) |
C13 | 0.044 (2) | 0.041 (2) | 0.045 (2) | −0.0073 (18) | −0.0086 (18) | −0.0044 (18) |
C14 | 0.052 (3) | 0.051 (3) | 0.047 (2) | −0.012 (2) | −0.007 (2) | −0.010 (2) |
C15 | 0.044 (2) | 0.040 (2) | 0.064 (3) | −0.014 (2) | −0.001 (2) | −0.006 (2) |
C16 | 0.043 (3) | 0.045 (3) | 0.074 (3) | −0.003 (2) | −0.017 (2) | 0.006 (2) |
C17 | 0.037 (2) | 0.045 (2) | 0.053 (2) | −0.0064 (19) | −0.0157 (18) | 0.0011 (19) |
C18 | 0.054 (2) | 0.032 (2) | 0.039 (2) | −0.0166 (18) | 0.0011 (17) | −0.0121 (16) |
C19 | 0.049 (2) | 0.045 (2) | 0.050 (2) | −0.021 (2) | −0.0018 (19) | −0.0106 (19) |
C20 | 0.069 (3) | 0.062 (3) | 0.054 (3) | −0.038 (3) | −0.006 (2) | −0.006 (2) |
C21 | 0.071 (3) | 0.046 (3) | 0.067 (3) | −0.028 (3) | −0.001 (3) | −0.004 (2) |
C22 | 0.072 (3) | 0.036 (2) | 0.053 (3) | −0.017 (2) | −0.005 (2) | −0.007 (2) |
C23 | 0.054 (3) | 0.040 (2) | 0.045 (2) | −0.017 (2) | −0.0001 (19) | −0.0088 (18) |
C24 | 0.042 (2) | 0.0295 (19) | 0.038 (2) | −0.0125 (16) | −0.0084 (16) | −0.0028 (15) |
C25 | 0.046 (2) | 0.058 (3) | 0.052 (2) | −0.017 (2) | −0.0110 (19) | −0.016 (2) |
C26 | 0.055 (3) | 0.069 (3) | 0.048 (3) | −0.021 (2) | −0.002 (2) | −0.027 (2) |
C27 | 0.053 (3) | 0.043 (2) | 0.044 (2) | −0.013 (2) | −0.0071 (19) | −0.0077 (18) |
C28 | 0.040 (2) | 0.048 (3) | 0.058 (3) | −0.005 (2) | −0.013 (2) | −0.011 (2) |
C29 | 0.050 (2) | 0.041 (2) | 0.050 (2) | −0.0119 (19) | −0.0154 (19) | −0.0117 (19) |
C30 | 0.042 (2) | 0.037 (2) | 0.056 (3) | −0.0080 (18) | −0.0125 (19) | −0.0126 (19) |
C31 | 0.094 (4) | 0.069 (4) | 0.081 (4) | −0.018 (3) | −0.046 (3) | −0.018 (3) |
C32 | 0.119 (6) | 0.091 (5) | 0.070 (4) | −0.010 (4) | −0.045 (4) | −0.020 (3) |
Cl1—C15 | 1.747 (5) | C13—C14 | 1.390 (6) |
Cl2—C27 | 1.746 (5) | C13—H13 | 0.9300 |
N1—C1 | 1.356 (5) | C14—C15 | 1.360 (6) |
N1—C6 | 1.410 (6) | C14—H14 | 0.9300 |
N1—H1 | 0.8600 | C15—C16 | 1.356 (7) |
N2—C18 | 1.393 (5) | C16—C17 | 1.363 (7) |
N2—C3 | 1.455 (5) | C16—H16 | 0.9300 |
N2—C4 | 1.463 (5) | C17—H17 | 0.9300 |
O1—C30 | 1.215 (5) | C18—C19 | 1.379 (6) |
O2—C30 | 1.350 (5) | C18—C23 | 1.395 (6) |
O2—C31 | 1.454 (6) | C19—C20 | 1.397 (6) |
C1—C5 | 1.344 (6) | C19—H19 | 0.9300 |
C1—C2 | 1.499 (6) | C20—C21 | 1.355 (7) |
C2—C3 | 1.534 (6) | C20—H20 | 0.9300 |
C2—H2A | 0.9700 | C21—C22 | 1.363 (7) |
C2—H2B | 0.9700 | C21—H21 | 0.9300 |
C3—C12 | 1.513 (6) | C22—C23 | 1.379 (6) |
C3—H3 | 0.9800 | C22—H22 | 0.9300 |
C4—C5 | 1.513 (5) | C23—H23 | 0.9300 |
C4—C24 | 1.537 (5) | C24—C25 | 1.379 (6) |
C4—H4 | 0.9800 | C24—C29 | 1.386 (6) |
C5—C30 | 1.458 (6) | C25—C26 | 1.377 (6) |
C6—C11 | 1.378 (7) | C25—H25 | 0.9300 |
C6—C7 | 1.389 (7) | C26—C27 | 1.370 (6) |
C7—C8 | 1.371 (8) | C26—H26 | 0.9300 |
C7—H7 | 0.9300 | C27—C28 | 1.384 (6) |
C8—C9 | 1.359 (11) | C28—C29 | 1.370 (6) |
C8—H8 | 0.9300 | C28—H28 | 0.9300 |
C9—C10 | 1.397 (10) | C29—H29 | 0.9300 |
C9—H9 | 0.9300 | C31—C32 | 1.460 (8) |
C10—C11 | 1.373 (8) | C31—H31A | 0.9700 |
C10—H10 | 0.9300 | C31—H31B | 0.9700 |
C11—H11 | 0.9300 | C32—H32A | 0.9600 |
C12—C13 | 1.382 (6) | C32—H32B | 0.9600 |
C12—C17 | 1.397 (5) | C32—H32C | 0.9600 |
C1—N1—C6 | 128.7 (4) | C16—C15—Cl1 | 119.8 (4) |
C1—N1—H1 | 115.7 | C14—C15—Cl1 | 119.0 (4) |
C6—N1—H1 | 115.7 | C15—C16—C17 | 119.4 (4) |
C18—N2—C3 | 120.5 (3) | C15—C16—H16 | 120.3 |
C18—N2—C4 | 119.7 (3) | C17—C16—H16 | 120.3 |
C3—N2—C4 | 119.8 (3) | C16—C17—C12 | 121.6 (4) |
C30—O2—C31 | 116.2 (4) | C16—C17—H17 | 119.2 |
C5—C1—N1 | 124.8 (4) | C12—C17—H17 | 119.2 |
C5—C1—C2 | 116.4 (3) | C19—C18—N2 | 121.8 (4) |
N1—C1—C2 | 118.7 (4) | C19—C18—C23 | 117.1 (4) |
C1—C2—C3 | 110.2 (3) | N2—C18—C23 | 121.1 (4) |
C1—C2—H2A | 109.6 | C18—C19—C20 | 120.5 (4) |
C3—C2—H2A | 109.6 | C18—C19—H19 | 119.7 |
C1—C2—H2B | 109.6 | C20—C19—H19 | 119.7 |
C3—C2—H2B | 109.6 | C21—C20—C19 | 121.4 (5) |
H2A—C2—H2B | 108.1 | C21—C20—H20 | 119.3 |
N2—C3—C12 | 113.6 (3) | C19—C20—H20 | 119.3 |
N2—C3—C2 | 109.8 (3) | C20—C21—C22 | 118.7 (4) |
C12—C3—C2 | 111.5 (3) | C20—C21—H21 | 120.6 |
N2—C3—H3 | 107.2 | C22—C21—H21 | 120.6 |
C12—C3—H3 | 107.2 | C21—C22—C23 | 121.0 (5) |
C2—C3—H3 | 107.2 | C21—C22—H22 | 119.5 |
N2—C4—C5 | 111.6 (3) | C23—C22—H22 | 119.5 |
N2—C4—C24 | 112.6 (3) | C22—C23—C18 | 121.2 (4) |
C5—C4—C24 | 111.3 (3) | C22—C23—H23 | 119.4 |
N2—C4—H4 | 107.0 | C18—C23—H23 | 119.4 |
C5—C4—H4 | 107.0 | C25—C24—C29 | 118.0 (4) |
C24—C4—H4 | 107.0 | C25—C24—C4 | 122.2 (3) |
C1—C5—C30 | 120.2 (4) | C29—C24—C4 | 119.8 (3) |
C1—C5—C4 | 119.7 (3) | C26—C25—C24 | 121.0 (4) |
C30—C5—C4 | 120.1 (3) | C26—C25—H25 | 119.5 |
C11—C6—C7 | 119.5 (4) | C24—C25—H25 | 119.5 |
C11—C6—N1 | 122.1 (4) | C27—C26—C25 | 119.4 (4) |
C7—C6—N1 | 118.3 (5) | C27—C26—H26 | 120.3 |
C8—C7—C6 | 120.1 (6) | C25—C26—H26 | 120.3 |
C8—C7—H7 | 120.0 | C26—C27—C28 | 121.4 (4) |
C6—C7—H7 | 120.0 | C26—C27—Cl2 | 120.1 (3) |
C9—C8—C7 | 120.7 (6) | C28—C27—Cl2 | 118.5 (3) |
C9—C8—H8 | 119.7 | C29—C28—C27 | 117.9 (4) |
C7—C8—H8 | 119.7 | C29—C28—H28 | 121.1 |
C8—C9—C10 | 119.6 (6) | C27—C28—H28 | 121.1 |
C8—C9—H9 | 120.2 | C28—C29—C24 | 122.4 (4) |
C10—C9—H9 | 120.2 | C28—C29—H29 | 118.8 |
C11—C10—C9 | 120.0 (6) | C24—C29—H29 | 118.8 |
C11—C10—H10 | 120.0 | O1—C30—O2 | 121.2 (4) |
C9—C10—H10 | 120.0 | O1—C30—C5 | 125.2 (4) |
C10—C11—C6 | 120.0 (6) | O2—C30—C5 | 113.6 (4) |
C10—C11—H11 | 120.0 | O2—C31—C32 | 107.8 (5) |
C6—C11—H11 | 120.0 | O2—C31—H31A | 110.1 |
C13—C12—C17 | 117.7 (4) | C32—C31—H31A | 110.2 |
C13—C12—C3 | 122.1 (3) | O2—C31—H31B | 110.2 |
C17—C12—C3 | 120.3 (4) | C32—C31—H31B | 110.1 |
C12—C13—C14 | 120.2 (4) | H31A—C31—H31B | 108.5 |
C12—C13—H13 | 119.9 | C31—C32—H32A | 109.5 |
C14—C13—H13 | 119.9 | C31—C32—H32B | 109.5 |
C15—C14—C13 | 119.8 (4) | H32A—C32—H32B | 109.5 |
C15—C14—H14 | 120.1 | C31—C32—H32C | 109.5 |
C13—C14—H14 | 120.1 | H32A—C32—H32C | 109.5 |
C16—C15—C14 | 121.3 (4) | H32B—C32—H32C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1 | 0.86 | 2.02 | 2.659 (5) | 130 |
C4—H4···O2 | 0.98 | 2.30 | 2.761 (5) | 108 |
C22—H22···O1i | 0.93 | 2.69 | 3.287 (6) | 122 |
Symmetry code: (i) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C32H28Cl2N2O2 |
Mr | 543.46 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 9.559 (4), 9.656 (3), 16.392 (6) |
α, β, γ (°) | 78.584 (6), 82.056 (6), 68.390 (6) |
V (Å3) | 1375.3 (8) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.27 |
Crystal size (mm) | 0.26 × 0.22 × 0.19 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.934, 0.951 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6863, 4767, 3177 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.596 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.070, 0.310, 1.08 |
No. of reflections | 4767 |
No. of parameters | 344 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.49, −0.47 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1 | 0.86 | 2.02 | 2.659 (5) | 130 |
C4—H4···O2 | 0.98 | 2.30 | 2.761 (5) | 108 |
C22—H22···O1i | 0.93 | 2.69 | 3.287 (6) | 122 |
Symmetry code: (i) x, y+1, z. |
Acknowledgements
The authors gratefully acknowledge financial support by the Fundamental Research Funds for the Central Universities (grant No. 12CX04091A).
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.
Functionalized piperidines occur with great regularity in the natural product arena and as important units in pharmaceuticals (Viegas et al., 2004; Kobayashi et al., 1999). As a continuation of structural study of functionalized piperidines (Brahmachari et al., 2012; Khan et al., 2008), herewith we present the title compound.
In (I) (Fig. 1), the bond lengths and angles are normal and correspond to those observed in anti-ethyl 4-anilino-1,2,6-triphenyl-1,2,5,6-tetrahydro-3- pyridinecarboxylate and ethyl 4-anilino-1,2,6-triphenyl-1,2,5,6-tetrahydropyridine-3-carboxylate (Khan et al., 2008; Brahmachari et al., 2012). The molecule of (I) contains one 1,2,5,6-tetrahydropyridine ring, ester group and four benzene rings. The central 1,2,5,6-tetrahydropyridine ring exhibits a distorted boat conformation, with the benzene rings attached to the C1, C3, N2 and C4 atoms. Two p-chorobenzene groups lie in the trans- position of the boat. The dihedral angles between the phenyl ring C6—C11 and phenyl rings C12—C17, C18—C23 and C24—C29 are 39.87 (1)°,85.04 (1)° and 65.60 (1)°, respectively. Two O atoms of the ethoxycarbonyl group are involved in intramolecular hydrogen bonds, N—H···O and C—H···O (Table 1), respectively.
In the crystal, weak intermolecular C—H···O hydrogen bonds (Table 1) link the molecules related by translation along the b axis into chains.