organic compounds
4-(4-Chlorophenyl)-8-methyl-2-oxo-1,2,5,6,7,8-hexahydroquinoline-3-carbonitrile
bChemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia, aCenter of Excellence for Advanced Materials Research, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia, and cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: seikweng@um.edu.my
The six-membered N-heterocyclic ring of the title compound, C17H15ClN2O, is fused with a methyl-substituted cyclohexene ring. The approximately planar nitrogen-bearing ring (r.m.s. deviation 0.019 Å) is aromatic, and the N atom shows a trigonal–planar coordination; its benzene substituent is aligned at 77.1 (1) °. The cyclohexene ring adopts a half-chair conformation. In the crystal, inversion-related molecules are linked by pairs of N—H⋯O hydrogen bonds, generating dimers.
Experimental
Crystal data
|
Refinement
|
Data collection: CrysAlis PRO (Agilent, 2010); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536811036142/xu5320sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811036142/xu5320Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811036142/xu5320Isup3.cml
4-Chlorobenzaldehyde (1.4 g, 10 mmol), 2-methylcyclohexanone (1.2 g, 10 mmol), ethyl cyanoacetate (1.1 g, 10 mmol) and ammonium acetate (6.2 g, 80 mmol) were heated in ethanol (50 ml) for 6 h. The solid product was collected, washed with water and then recrystallized from ethanol.
Carbon–bound H-atoms were placed in calculated positions [C–H 0.95–0.99 Å; Uiso(H) 1.2–1.5 Ueq(C)] and were included in the
in the riding model approximation. The amino H-atom was located in a difference Fourier map and was freely refined.We have reported the synthesis of 2-oxo-4-phenyl-1,2,5,6-tetrahydrobenzo[h]quinoline-3-carbonitrile by using the reaction of benzaldehyde, 1-tetralone and ethyl cyanoacetate. The last reactant is incorporated into the product to form a part of the six-membered nitrogen-bearing ring, which is now endowed with an exocyclic cyanide group (Asiri et al., 2011). In the present study, the use of 2-methylcyclohexane leads to the formation of the analogous compound with a cyclohexene ring fused with the six-membered nitrogen-bearing ring (Scheme I). The planar nitrogen-bearing ring (r.m.s. deviation 0.019 Å) is aromatic, and the N atom shows trigonal planar coordination; its benzene substituent is aligned at 77.1 (1) °. The cyclohexene ring adopts a half-chair conformation (Fig. 1). Two molecules are linked about a center-of-inversion by an N–H···O hydrogen bond to generate a dimer (Table 1).
For a related compound, see: Asiri et al. (2011).
Data collection: CrysAlis PRO (Agilent, 2010); cell
CrysAlis PRO (Agilent, 2010); data reduction: CrysAlis PRO (Agilent, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. Thermal ellipsoid plot (Barbour, 2001) of C17H15ClN2O at the 70% probability level; hydrogen atoms are drawn as spheres of arbitrary radius. |
C17H15ClN2O | F(000) = 1248 |
Mr = 298.76 | Dx = 1.334 Mg m−3 |
Monoclinic, C2/c | Cu Kα radiation, λ = 1.54184 Å |
Hall symbol: -C 2yc | Cell parameters from 4602 reflections |
a = 18.6304 (4) Å | θ = 3.3–74.1° |
b = 18.7399 (4) Å | µ = 2.27 mm−1 |
c = 8.5209 (2) Å | T = 100 K |
β = 90.229 (2)° | Prism, colorless |
V = 2974.89 (11) Å3 | 0.30 × 0.03 × 0.03 mm |
Z = 8 |
Agilent SuperNova Dual diffractometer with Atlas detector | 3014 independent reflections |
Radiation source: SuperNova (Cu) X-ray Source | 2682 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.025 |
Detector resolution: 10.4041 pixels mm-1 | θmax = 74.3°, θmin = 3.4° |
ω scan | h = −22→23 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2010) | k = −12→23 |
Tmin = 0.550, Tmax = 0.935 | l = −10→10 |
10387 measured reflections |
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)] = 0.065 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.187 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0973P)2 + 6.1309P] where P = (Fo2 + 2Fc2)/3 |
3014 reflections | (Δ/σ)max = 0.001 |
194 parameters | Δρmax = 0.79 e Å−3 |
0 restraints | Δρmin = −0.40 e Å−3 |
C17H15ClN2O | V = 2974.89 (11) Å3 |
Mr = 298.76 | Z = 8 |
Monoclinic, C2/c | Cu Kα radiation |
a = 18.6304 (4) Å | µ = 2.27 mm−1 |
b = 18.7399 (4) Å | T = 100 K |
c = 8.5209 (2) Å | 0.30 × 0.03 × 0.03 mm |
β = 90.229 (2)° |
Agilent SuperNova Dual diffractometer with Atlas detector | 3014 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2010) | 2682 reflections with I > 2σ(I) |
Tmin = 0.550, Tmax = 0.935 | Rint = 0.025 |
10387 measured reflections |
R[F2 > 2σ(F2)] = 0.065 | 0 restraints |
wR(F2) = 0.187 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.79 e Å−3 |
3014 reflections | Δρmin = −0.40 e Å−3 |
194 parameters |
x | y | z | Uiso*/Ueq | ||
Cl1 | 0.03066 (4) | 0.40727 (4) | 1.04897 (10) | 0.0561 (3) | |
O1 | 0.43887 (13) | 0.55097 (12) | 0.6145 (3) | 0.0732 (8) | |
N1 | 0.43862 (13) | 0.43226 (13) | 0.5593 (3) | 0.0513 (6) | |
N2 | 0.28356 (14) | 0.58993 (14) | 0.8353 (3) | 0.0520 (6) | |
C1 | 0.41066 (14) | 0.36551 (15) | 0.5654 (4) | 0.0448 (6) | |
C2 | 0.44737 (15) | 0.31216 (15) | 0.4544 (4) | 0.0458 (6) | |
H2 | 0.4536 | 0.3360 | 0.3503 | 0.055* | |
C3 | 0.52222 (16) | 0.29166 (17) | 0.5165 (4) | 0.0531 (7) | |
H3A | 0.5514 | 0.3348 | 0.5291 | 0.080* | |
H3B | 0.5455 | 0.2594 | 0.4418 | 0.080* | |
H3C | 0.5175 | 0.2677 | 0.6182 | 0.080* | |
C4 | 0.39803 (15) | 0.24814 (15) | 0.4311 (3) | 0.0461 (6) | |
H4A | 0.4254 | 0.2088 | 0.3818 | 0.055* | |
H4B | 0.3584 | 0.2615 | 0.3590 | 0.055* | |
C5 | 0.36656 (18) | 0.22215 (15) | 0.5866 (3) | 0.0498 (7) | |
H5A | 0.4062 | 0.2102 | 0.6598 | 0.060* | |
H5B | 0.3382 | 0.1783 | 0.5679 | 0.060* | |
C6 | 0.31816 (16) | 0.27916 (15) | 0.6619 (4) | 0.0480 (7) | |
H6A | 0.2711 | 0.2795 | 0.6074 | 0.058* | |
H6B | 0.3097 | 0.2664 | 0.7731 | 0.058* | |
C7 | 0.35036 (15) | 0.35264 (14) | 0.6542 (3) | 0.0425 (6) | |
C8 | 0.31531 (15) | 0.41183 (14) | 0.7254 (3) | 0.0402 (6) | |
C9 | 0.34494 (15) | 0.47924 (15) | 0.7151 (3) | 0.0453 (6) | |
C10 | 0.41041 (17) | 0.49152 (16) | 0.6296 (4) | 0.0532 (7) | |
C11 | 0.31115 (15) | 0.54044 (16) | 0.7834 (3) | 0.0451 (6) | |
C12 | 0.24447 (15) | 0.40529 (14) | 0.8035 (3) | 0.0396 (6) | |
C13 | 0.23840 (17) | 0.38018 (16) | 0.9559 (3) | 0.0480 (7) | |
H13 | 0.2797 | 0.3628 | 1.0093 | 0.058* | |
C14 | 0.17279 (18) | 0.38018 (16) | 1.0307 (3) | 0.0512 (7) | |
H14 | 0.1688 | 0.3630 | 1.1352 | 0.061* | |
C15 | 0.11297 (16) | 0.40541 (14) | 0.9520 (3) | 0.0436 (6) | |
C16 | 0.11705 (16) | 0.43002 (17) | 0.8006 (4) | 0.0504 (7) | |
H16 | 0.0753 | 0.4465 | 0.7474 | 0.060* | |
C17 | 0.18293 (16) | 0.43036 (18) | 0.7268 (3) | 0.0502 (7) | |
H17 | 0.1865 | 0.4479 | 0.6225 | 0.060* | |
H1 | 0.481 (2) | 0.439 (2) | 0.508 (5) | 0.078 (12)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0605 (5) | 0.0437 (4) | 0.0642 (5) | −0.0013 (3) | 0.0181 (4) | 0.0010 (3) |
O1 | 0.0666 (14) | 0.0474 (13) | 0.106 (2) | −0.0271 (11) | 0.0384 (14) | −0.0337 (13) |
N1 | 0.0412 (13) | 0.0416 (13) | 0.0711 (17) | −0.0104 (10) | 0.0060 (12) | −0.0181 (12) |
N2 | 0.0544 (14) | 0.0540 (15) | 0.0478 (13) | −0.0066 (11) | 0.0023 (11) | −0.0180 (11) |
C1 | 0.0362 (13) | 0.0401 (14) | 0.0580 (16) | −0.0042 (11) | −0.0058 (11) | −0.0078 (12) |
C2 | 0.0416 (14) | 0.0358 (13) | 0.0599 (17) | −0.0031 (11) | 0.0022 (12) | 0.0042 (12) |
C3 | 0.0464 (16) | 0.0499 (17) | 0.0631 (18) | −0.0040 (13) | 0.0025 (13) | 0.0048 (14) |
C4 | 0.0467 (14) | 0.0404 (14) | 0.0510 (16) | −0.0046 (12) | 0.0032 (12) | −0.0013 (12) |
C5 | 0.0692 (19) | 0.0329 (13) | 0.0472 (15) | −0.0062 (12) | 0.0010 (13) | 0.0046 (11) |
C6 | 0.0484 (15) | 0.0383 (14) | 0.0573 (16) | −0.0057 (11) | −0.0037 (12) | 0.0050 (12) |
C7 | 0.0445 (14) | 0.0358 (13) | 0.0472 (14) | −0.0024 (11) | −0.0113 (11) | −0.0001 (11) |
C8 | 0.0444 (14) | 0.0418 (14) | 0.0342 (12) | −0.0054 (11) | −0.0083 (10) | −0.0001 (10) |
C9 | 0.0460 (14) | 0.0415 (14) | 0.0484 (15) | −0.0097 (11) | 0.0036 (11) | −0.0107 (11) |
C10 | 0.0494 (15) | 0.0440 (16) | 0.0662 (19) | −0.0134 (12) | 0.0103 (14) | −0.0193 (14) |
C11 | 0.0469 (14) | 0.0465 (15) | 0.0420 (13) | −0.0132 (12) | 0.0047 (11) | −0.0088 (12) |
C12 | 0.0454 (14) | 0.0373 (13) | 0.0361 (12) | −0.0066 (10) | −0.0032 (10) | −0.0020 (10) |
C13 | 0.0568 (16) | 0.0489 (16) | 0.0383 (14) | 0.0081 (13) | −0.0004 (12) | 0.0069 (12) |
C14 | 0.0665 (18) | 0.0461 (16) | 0.0411 (14) | 0.0045 (14) | 0.0054 (13) | 0.0093 (12) |
C15 | 0.0534 (16) | 0.0318 (13) | 0.0457 (14) | −0.0067 (11) | 0.0066 (12) | −0.0018 (10) |
C16 | 0.0467 (15) | 0.0563 (17) | 0.0480 (15) | −0.0107 (13) | −0.0080 (12) | 0.0046 (13) |
C17 | 0.0463 (15) | 0.0670 (19) | 0.0374 (13) | −0.0133 (14) | −0.0068 (11) | 0.0082 (13) |
Cl1—C15 | 1.745 (3) | C5—H5B | 0.9900 |
O1—C10 | 1.241 (4) | C6—C7 | 1.503 (4) |
N1—C1 | 1.356 (4) | C6—H6A | 0.9900 |
N1—C10 | 1.368 (4) | C6—H6B | 0.9900 |
N1—H1 | 0.91 (4) | C7—C8 | 1.424 (4) |
N2—C11 | 1.150 (4) | C8—C9 | 1.382 (4) |
C1—C7 | 1.378 (4) | C8—C12 | 1.486 (4) |
C1—C2 | 1.539 (4) | C9—C11 | 1.433 (4) |
C2—C4 | 1.524 (4) | C9—C10 | 1.442 (4) |
C2—C3 | 1.538 (4) | C12—C13 | 1.386 (4) |
C2—H2 | 1.0000 | C12—C17 | 1.399 (4) |
C3—H3A | 0.9800 | C13—C14 | 1.381 (4) |
C3—H3B | 0.9800 | C13—H13 | 0.9500 |
C3—H3C | 0.9800 | C14—C15 | 1.382 (4) |
C4—C5 | 1.531 (4) | C14—H14 | 0.9500 |
C4—H4A | 0.9900 | C15—C16 | 1.373 (4) |
C4—H4B | 0.9900 | C16—C17 | 1.381 (4) |
C5—C6 | 1.540 (4) | C16—H16 | 0.9500 |
C5—H5A | 0.9900 | C17—H17 | 0.9500 |
C1—N1—C10 | 125.7 (3) | C5—C6—H6B | 109.1 |
C1—N1—H1 | 118 (3) | H6A—C6—H6B | 107.8 |
C10—N1—H1 | 116 (3) | C1—C7—C8 | 118.3 (2) |
N1—C1—C7 | 119.8 (3) | C1—C7—C6 | 120.7 (3) |
N1—C1—C2 | 113.8 (2) | C8—C7—C6 | 120.7 (3) |
C7—C1—C2 | 126.1 (2) | C9—C8—C7 | 120.1 (3) |
C4—C2—C1 | 108.8 (2) | C9—C8—C12 | 117.4 (2) |
C4—C2—C3 | 113.2 (2) | C7—C8—C12 | 122.4 (2) |
C1—C2—C3 | 110.8 (2) | C8—C9—C11 | 122.0 (3) |
C4—C2—H2 | 108.0 | C8—C9—C10 | 121.1 (3) |
C1—C2—H2 | 108.0 | C11—C9—C10 | 116.8 (2) |
C3—C2—H2 | 108.0 | O1—C10—N1 | 121.2 (3) |
C2—C3—H3A | 109.5 | O1—C10—C9 | 124.0 (3) |
C2—C3—H3B | 109.5 | N1—C10—C9 | 114.8 (2) |
H3A—C3—H3B | 109.5 | N2—C11—C9 | 178.6 (3) |
C2—C3—H3C | 109.5 | C13—C12—C17 | 118.8 (3) |
H3A—C3—H3C | 109.5 | C13—C12—C8 | 121.6 (2) |
H3B—C3—H3C | 109.5 | C17—C12—C8 | 119.4 (2) |
C2—C4—C5 | 111.7 (2) | C14—C13—C12 | 120.5 (3) |
C2—C4—H4A | 109.3 | C14—C13—H13 | 119.7 |
C5—C4—H4A | 109.3 | C12—C13—H13 | 119.7 |
C2—C4—H4B | 109.3 | C13—C14—C15 | 119.3 (3) |
C5—C4—H4B | 109.3 | C13—C14—H14 | 120.3 |
H4A—C4—H4B | 107.9 | C15—C14—H14 | 120.3 |
C4—C5—C6 | 111.5 (2) | C16—C15—C14 | 121.6 (3) |
C4—C5—H5A | 109.3 | C16—C15—Cl1 | 119.4 (2) |
C6—C5—H5A | 109.3 | C14—C15—Cl1 | 119.0 (2) |
C4—C5—H5B | 109.3 | C15—C16—C17 | 118.8 (3) |
C6—C5—H5B | 109.3 | C15—C16—H16 | 120.6 |
H5A—C5—H5B | 108.0 | C17—C16—H16 | 120.6 |
C7—C6—C5 | 112.5 (2) | C16—C17—C12 | 120.9 (3) |
C7—C6—H6A | 109.1 | C16—C17—H17 | 119.5 |
C5—C6—H6A | 109.1 | C12—C17—H17 | 119.5 |
C7—C6—H6B | 109.1 | ||
C10—N1—C1—C7 | −3.1 (5) | C7—C8—C9—C10 | 1.6 (4) |
C10—N1—C1—C2 | 171.0 (3) | C12—C8—C9—C10 | −174.6 (3) |
N1—C1—C2—C4 | −161.8 (3) | C1—N1—C10—O1 | −178.3 (3) |
C7—C1—C2—C4 | 11.8 (4) | C1—N1—C10—C9 | −0.6 (5) |
N1—C1—C2—C3 | 73.2 (3) | C8—C9—C10—O1 | 178.9 (3) |
C7—C1—C2—C3 | −113.2 (3) | C11—C9—C10—O1 | 1.0 (5) |
C1—C2—C4—C5 | −45.4 (3) | C8—C9—C10—N1 | 1.3 (4) |
C3—C2—C4—C5 | 78.3 (3) | C11—C9—C10—N1 | −176.6 (3) |
C2—C4—C5—C6 | 63.7 (3) | C9—C8—C12—C13 | −102.5 (3) |
C4—C5—C6—C7 | −43.5 (3) | C7—C8—C12—C13 | 81.5 (3) |
N1—C1—C7—C8 | 5.8 (4) | C9—C8—C12—C17 | 72.3 (3) |
C2—C1—C7—C8 | −167.5 (3) | C7—C8—C12—C17 | −103.8 (3) |
N1—C1—C7—C6 | 179.6 (3) | C17—C12—C13—C14 | −0.2 (4) |
C2—C1—C7—C6 | 6.3 (4) | C8—C12—C13—C14 | 174.5 (3) |
C5—C6—C7—C1 | 9.8 (4) | C12—C13—C14—C15 | 0.1 (5) |
C5—C6—C7—C8 | −176.5 (2) | C13—C14—C15—C16 | 0.5 (4) |
C1—C7—C8—C9 | −5.1 (4) | C13—C14—C15—Cl1 | −178.4 (2) |
C6—C7—C8—C9 | −178.9 (3) | C14—C15—C16—C17 | −1.0 (4) |
C1—C7—C8—C12 | 170.9 (2) | Cl1—C15—C16—C17 | 178.0 (2) |
C6—C7—C8—C12 | −2.9 (4) | C15—C16—C17—C12 | 0.8 (5) |
C7—C8—C9—C11 | 179.3 (3) | C13—C12—C17—C16 | −0.2 (4) |
C12—C8—C9—C11 | 3.1 (4) | C8—C12—C17—C16 | −175.1 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.91 (4) | 1.84 (4) | 2.744 (3) | 174 (4) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C17H15ClN2O |
Mr | 298.76 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 100 |
a, b, c (Å) | 18.6304 (4), 18.7399 (4), 8.5209 (2) |
β (°) | 90.229 (2) |
V (Å3) | 2974.89 (11) |
Z | 8 |
Radiation type | Cu Kα |
µ (mm−1) | 2.27 |
Crystal size (mm) | 0.30 × 0.03 × 0.03 |
Data collection | |
Diffractometer | Agilent SuperNova Dual diffractometer with Atlas detector |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2010) |
Tmin, Tmax | 0.550, 0.935 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10387, 3014, 2682 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.624 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.065, 0.187, 1.03 |
No. of reflections | 3014 |
No. of parameters | 194 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.79, −0.40 |
Computer programs: CrysAlis PRO (Agilent, 2010), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1i | 0.91 (4) | 1.84 (4) | 2.744 (3) | 174 (4) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
Acknowledgements
We thank King Abdulaziz University and the University of Malaya for supporting this study.
References
Agilent (2010). CrysAlis PRO. Agilent Technologies, Yarnton, England. Google Scholar
Asiri, A. M., Faidallah, H. M., Al-Youbi, A. O., Alamry, K. A. & Ng, S. W. (2011). Acta Cryst. E67, o2468. Web of Science CSD CrossRef IUCr Journals Google Scholar
Barbour, L. J. (2001). J. Supramol. Chem. 1, 189–191. CrossRef CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals Google Scholar
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We have reported the synthesis of 2-oxo-4-phenyl-1,2,5,6-tetrahydrobenzo[h]quinoline-3-carbonitrile by using the reaction of benzaldehyde, 1-tetralone and ethyl cyanoacetate. The last reactant is incorporated into the product to form a part of the six-membered nitrogen-bearing ring, which is now endowed with an exocyclic cyanide group (Asiri et al., 2011). In the present study, the use of 2-methylcyclohexane leads to the formation of the analogous compound with a cyclohexene ring fused with the six-membered nitrogen-bearing ring (Scheme I). The planar nitrogen-bearing ring (r.m.s. deviation 0.019 Å) is aromatic, and the N atom shows trigonal planar coordination; its benzene substituent is aligned at 77.1 (1) °. The cyclohexene ring adopts a half-chair conformation (Fig. 1). Two molecules are linked about a center-of-inversion by an N–H···O hydrogen bond to generate a dimer (Table 1).