organic compounds
2-Amino-4-(4-chlorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile propan-2-one monosolvate
aChemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England, bDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, cUniversity of Sargodha, Department of Physics, Sargodha, Pakistan, and dKirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq
*Correspondence e-mail: akkurt@erciyes.edu.tr
In the title compound, C18H17ClN2O2·C3H6O, the 4H-pyran ring is nearly planar [maximum deviation = −0.108 (1) Å] and the cyclohexene ring is puckered [puckering parameters QT = 0.4596 (17) Å, θ = 55.9 (2)° and φ = 226.5 (3)°]. The 4H-pyran ring is approximately perpendicular to the benzene ring [dihedral angle = 84.35 (7)°] and is almost coplanar with the mean plane of the cyclohexene ring [dihedral angle = 8.64 (7)°]. In the crystal, inversion-related main molecules are linked into dimers by pairs of N—H⋯N hydrogen bonds, generating an R22(12) graph-set motif. These dimers are further connected by N—H⋯O and C—H⋯N hydrogen bonds, forming a layer structure extending parallel to the (011) plane. In addition, the molecules within the layers interact with each other via C—H⋯π interactions.
Related literature
For the synthesis of chromene compounds, see: Coujon et al. (2002). For the bioactivity of chromene compounds see: Kaye & Nocanda (2002). For similar structures, see: Hu et al. (2012); Mohamed et al. (2012). For bond-length data, see: Allen et al. (1987). For puckering parameters, see: Cremer & Pople (1975). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (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: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
10.1107/S1600536812024142/xu5550sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812024142/xu5550Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812024142/xu5550Isup3.cml
A mixture of 140 mg (1 mmol) 5,5-dimethylcyclohexane-1,3-dione, 140 mg (1 mmol) 4-chlorobenzaldehyde and 123 mg (4-aminophenyl)methanol in 50 ml ethanol was refluxed for 5 h. The excess solvent was removed under vacuum and the residual resin was washed with cold acetone. The solid that formed was filtered off, washed with cold ethanol, well drained then recrystallized from a mixture of ethanol–acetone (1:1). Crystals obtained were in good quality and suitable for X-ray diffraction (m.p. 461 K).
H atoms were positioned geometrically and refined by using a riding model, with N—H = 0.86 Å and C—H = 0.93 Å (aromatic), 0.96 Å (methyl), 0.97 Å (methylene) and 0.98 Å (methine), with Uiso(H) = 1.5Ueq(C) for methyl groups and Uiso(H) = 1.2Ueq(C,N) for others.
Data collection: APEX2 (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: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. View of the title compound with the atom numbering scheme. Displacement ellipsoids for non-H atoms are drawn at the 30% probability level. | |
Fig. 2. View of the dimers formed by pairs of N—H···N hydrogen bonds, with an R22(12) motif and the N—H···O and C—H···N hydrogen bonds which connect the dimers with each other. H atoms not involved in hydrogen bonds have been omitted for clarity. |
C18H17ClN2O2·C3H6O | Z = 2 |
Mr = 386.86 | F(000) = 408 |
Triclinic, P1 | Dx = 1.271 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.1707 (2) Å | Cell parameters from 430 reflections |
b = 9.4386 (2) Å | θ = 2.2–21° |
c = 13.5192 (4) Å | µ = 0.21 mm−1 |
α = 84.446 (1)° | T = 296 K |
β = 82.546 (2)° | Prism, colourless |
γ = 78.625 (1)° | 0.28 × 0.25 × 0.23 mm |
V = 1010.76 (4) Å3 |
Bruker Kappa APEXII CCD diffractometer | 4769 independent reflections |
Radiation source: fine-focus sealed tube | 3390 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
Detector resolution: 0.81 pixels mm-1 | θmax = 27.9°, θmin = 1.5° |
ω scans | h = −9→10 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −12→12 |
Tmin = 0.942, Tmax = 0.952 | l = −17→17 |
16320 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)] = 0.045 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.126 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0552P)2 + 0.2106P] where P = (Fo2 + 2Fc2)/3 |
4769 reflections | (Δ/σ)max < 0.001 |
248 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.34 e Å−3 |
C18H17ClN2O2·C3H6O | γ = 78.625 (1)° |
Mr = 386.86 | V = 1010.76 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.1707 (2) Å | Mo Kα radiation |
b = 9.4386 (2) Å | µ = 0.21 mm−1 |
c = 13.5192 (4) Å | T = 296 K |
α = 84.446 (1)° | 0.28 × 0.25 × 0.23 mm |
β = 82.546 (2)° |
Bruker Kappa APEXII CCD diffractometer | 4769 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 3390 reflections with I > 2σ(I) |
Tmin = 0.942, Tmax = 0.952 | Rint = 0.027 |
16320 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 0 restraints |
wR(F2) = 0.126 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.33 e Å−3 |
4769 reflections | Δρmin = −0.34 e Å−3 |
248 parameters |
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 | 1.23217 (8) | −0.04097 (7) | 0.07282 (5) | 0.0908 (3) | |
O1 | 0.49042 (12) | 0.48205 (10) | 0.35120 (8) | 0.0400 (3) | |
O2 | 1.05221 (14) | 0.51811 (13) | 0.37189 (11) | 0.0565 (5) | |
N1 | 0.67987 (18) | 0.01830 (15) | 0.51140 (12) | 0.0536 (5) | |
N2 | 0.36160 (16) | 0.29958 (14) | 0.40904 (11) | 0.0480 (5) | |
C1 | 0.92881 (17) | 0.24000 (15) | 0.30888 (11) | 0.0342 (4) | |
C2 | 1.05201 (19) | 0.12327 (17) | 0.33381 (14) | 0.0460 (5) | |
C3 | 1.1449 (2) | 0.03660 (19) | 0.26177 (16) | 0.0555 (6) | |
C4 | 1.1148 (2) | 0.06724 (19) | 0.16419 (15) | 0.0531 (6) | |
C5 | 0.9934 (2) | 0.18223 (19) | 0.13653 (14) | 0.0513 (6) | |
C6 | 0.9008 (2) | 0.26753 (17) | 0.20960 (12) | 0.0430 (5) | |
C7 | 0.82134 (17) | 0.32702 (15) | 0.39096 (11) | 0.0337 (4) | |
C8 | 0.65888 (18) | 0.27155 (15) | 0.42120 (11) | 0.0335 (4) | |
C9 | 0.50856 (18) | 0.34425 (15) | 0.39607 (11) | 0.0342 (4) | |
C10 | 0.62537 (18) | 0.55179 (15) | 0.33926 (11) | 0.0334 (4) | |
C11 | 0.77873 (17) | 0.48648 (15) | 0.36014 (11) | 0.0326 (4) | |
C12 | 0.66848 (18) | 0.13136 (16) | 0.47074 (12) | 0.0380 (4) | |
C13 | 0.90997 (19) | 0.57350 (16) | 0.35344 (12) | 0.0388 (5) | |
C14 | 0.8623 (2) | 0.73361 (17) | 0.32758 (14) | 0.0463 (5) | |
C15 | 0.7272 (2) | 0.77363 (16) | 0.25591 (12) | 0.0409 (5) | |
C16 | 0.57651 (18) | 0.70488 (15) | 0.30076 (12) | 0.0387 (5) | |
C17 | 0.6697 (2) | 0.93797 (18) | 0.24419 (17) | 0.0592 (7) | |
C18 | 0.7976 (2) | 0.7186 (2) | 0.15339 (14) | 0.0564 (6) | |
O3 | 0.5451 (2) | 0.50051 (18) | 0.11608 (13) | 0.0843 (7) | |
C19 | 0.4295 (3) | 0.4388 (2) | 0.11692 (15) | 0.0603 (7) | |
C20 | 0.4577 (4) | 0.2802 (3) | 0.1159 (2) | 0.0995 (13) | |
C21 | 0.2546 (3) | 0.5175 (3) | 0.1176 (3) | 0.1166 (13) | |
H2 | 1.07260 | 0.10280 | 0.40020 | 0.0550* | |
H2A | 0.35510 | 0.21450 | 0.43660 | 0.0580* | |
H2B | 0.27340 | 0.35580 | 0.38990 | 0.0580* | |
H3 | 1.22690 | −0.04170 | 0.27950 | 0.0670* | |
H5 | 0.97400 | 0.20230 | 0.06990 | 0.0620* | |
H6 | 0.81800 | 0.34500 | 0.19150 | 0.0520* | |
H7 | 0.88370 | 0.31470 | 0.44940 | 0.0410* | |
H14A | 0.96180 | 0.76980 | 0.29740 | 0.0560* | |
H14B | 0.82190 | 0.78160 | 0.38870 | 0.0560* | |
H16A | 0.51530 | 0.76070 | 0.35500 | 0.0460* | |
H16B | 0.50160 | 0.70960 | 0.25000 | 0.0460* | |
H17A | 0.76440 | 0.98270 | 0.22010 | 0.0890* | |
H17B | 0.62060 | 0.97280 | 0.30780 | 0.0890* | |
H17C | 0.58780 | 0.96160 | 0.19740 | 0.0890* | |
H18A | 0.71240 | 0.74390 | 0.10870 | 0.0850* | |
H18B | 0.83210 | 0.61510 | 0.16000 | 0.0850* | |
H18C | 0.89240 | 0.76210 | 0.12710 | 0.0850* | |
H20A | 0.41990 | 0.25490 | 0.05680 | 0.1490* | |
H20B | 0.39630 | 0.24090 | 0.17400 | 0.1490* | |
H20C | 0.57550 | 0.24120 | 0.11620 | 0.1490* | |
H21A | 0.25020 | 0.61800 | 0.12620 | 0.1750* | |
H21B | 0.18550 | 0.47730 | 0.17170 | 0.1750* | |
H21C | 0.21410 | 0.50840 | 0.05540 | 0.1750* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0881 (4) | 0.0749 (4) | 0.1017 (5) | −0.0010 (3) | 0.0216 (3) | −0.0411 (3) |
O1 | 0.0293 (5) | 0.0326 (5) | 0.0566 (7) | −0.0079 (4) | −0.0069 (5) | 0.0111 (5) |
O2 | 0.0351 (6) | 0.0490 (7) | 0.0871 (10) | −0.0102 (5) | −0.0169 (6) | 0.0050 (6) |
N1 | 0.0469 (8) | 0.0429 (8) | 0.0700 (10) | −0.0113 (6) | −0.0163 (7) | 0.0197 (7) |
N2 | 0.0314 (7) | 0.0391 (7) | 0.0715 (10) | −0.0099 (6) | −0.0074 (6) | 0.0151 (7) |
C1 | 0.0271 (7) | 0.0287 (7) | 0.0468 (9) | −0.0067 (6) | −0.0050 (6) | 0.0019 (6) |
C2 | 0.0354 (8) | 0.0405 (9) | 0.0591 (11) | −0.0009 (7) | −0.0090 (7) | 0.0036 (8) |
C3 | 0.0384 (9) | 0.0392 (9) | 0.0830 (14) | 0.0046 (7) | −0.0040 (9) | −0.0041 (9) |
C4 | 0.0451 (10) | 0.0430 (9) | 0.0698 (13) | −0.0097 (8) | 0.0099 (8) | −0.0169 (8) |
C5 | 0.0579 (11) | 0.0464 (10) | 0.0500 (10) | −0.0122 (8) | −0.0019 (8) | −0.0055 (8) |
C6 | 0.0431 (9) | 0.0350 (8) | 0.0497 (10) | −0.0035 (7) | −0.0075 (7) | −0.0016 (7) |
C7 | 0.0304 (7) | 0.0318 (7) | 0.0395 (8) | −0.0065 (6) | −0.0093 (6) | 0.0036 (6) |
C8 | 0.0330 (7) | 0.0294 (7) | 0.0371 (8) | −0.0063 (6) | −0.0038 (6) | 0.0036 (6) |
C9 | 0.0344 (7) | 0.0308 (7) | 0.0365 (8) | −0.0083 (6) | −0.0020 (6) | 0.0037 (6) |
C10 | 0.0323 (7) | 0.0291 (7) | 0.0384 (8) | −0.0078 (6) | −0.0012 (6) | −0.0006 (6) |
C11 | 0.0306 (7) | 0.0287 (7) | 0.0383 (8) | −0.0060 (6) | −0.0031 (6) | −0.0011 (6) |
C12 | 0.0315 (7) | 0.0387 (8) | 0.0430 (8) | −0.0066 (6) | −0.0072 (6) | 0.0050 (7) |
C13 | 0.0363 (8) | 0.0367 (8) | 0.0443 (9) | −0.0093 (6) | −0.0050 (6) | −0.0024 (6) |
C14 | 0.0442 (9) | 0.0355 (8) | 0.0619 (11) | −0.0141 (7) | −0.0079 (8) | −0.0013 (7) |
C15 | 0.0423 (8) | 0.0298 (8) | 0.0508 (9) | −0.0108 (6) | −0.0030 (7) | 0.0019 (7) |
C16 | 0.0360 (8) | 0.0286 (7) | 0.0488 (9) | −0.0032 (6) | −0.0022 (7) | 0.0016 (6) |
C17 | 0.0613 (11) | 0.0318 (9) | 0.0848 (14) | −0.0125 (8) | −0.0127 (10) | 0.0085 (9) |
C18 | 0.0596 (11) | 0.0564 (11) | 0.0512 (11) | −0.0167 (9) | 0.0037 (8) | 0.0048 (8) |
O3 | 0.0928 (12) | 0.0868 (11) | 0.0863 (12) | −0.0419 (10) | −0.0209 (9) | −0.0046 (9) |
C19 | 0.0682 (13) | 0.0644 (12) | 0.0506 (11) | −0.0211 (10) | −0.0033 (9) | −0.0024 (9) |
C20 | 0.109 (2) | 0.0637 (15) | 0.132 (3) | −0.0259 (15) | −0.0305 (18) | 0.0047 (15) |
C21 | 0.0753 (18) | 0.115 (2) | 0.140 (3) | 0.0068 (16) | 0.0197 (17) | −0.006 (2) |
Cl1—C4 | 1.743 (2) | C15—C17 | 1.528 (2) |
O1—C9 | 1.3697 (17) | C15—C18 | 1.529 (2) |
O1—C10 | 1.3765 (18) | C2—H2 | 0.9300 |
O2—C13 | 1.223 (2) | C3—H3 | 0.9300 |
O3—C19 | 1.202 (3) | C5—H5 | 0.9300 |
N1—C12 | 1.145 (2) | C6—H6 | 0.9300 |
N2—C9 | 1.335 (2) | C7—H7 | 0.9800 |
N2—H2B | 0.8600 | C14—H14B | 0.9700 |
N2—H2A | 0.8600 | C14—H14A | 0.9700 |
C1—C2 | 1.385 (2) | C16—H16A | 0.9700 |
C1—C6 | 1.382 (2) | C16—H16B | 0.9700 |
C1—C7 | 1.522 (2) | C17—H17B | 0.9600 |
C2—C3 | 1.383 (3) | C17—H17C | 0.9600 |
C3—C4 | 1.366 (3) | C17—H17A | 0.9600 |
C4—C5 | 1.377 (2) | C18—H18B | 0.9600 |
C5—C6 | 1.384 (2) | C18—H18C | 0.9600 |
C7—C11 | 1.507 (2) | C18—H18A | 0.9600 |
C7—C8 | 1.515 (2) | C19—C20 | 1.470 (3) |
C8—C9 | 1.351 (2) | C19—C21 | 1.474 (4) |
C8—C12 | 1.417 (2) | C20—H20A | 0.9600 |
C10—C11 | 1.335 (2) | C20—H20B | 0.9600 |
C10—C16 | 1.483 (2) | C20—H20C | 0.9600 |
C11—C13 | 1.463 (2) | C21—H21A | 0.9600 |
C13—C14 | 1.503 (2) | C21—H21B | 0.9600 |
C14—C15 | 1.530 (2) | C21—H21C | 0.9600 |
C15—C16 | 1.533 (2) | ||
C9—O1—C10 | 118.92 (11) | C4—C5—H5 | 121.00 |
C9—N2—H2B | 120.00 | C6—C5—H5 | 121.00 |
H2A—N2—H2B | 120.00 | C1—C6—H6 | 119.00 |
C9—N2—H2A | 120.00 | C5—C6—H6 | 119.00 |
C6—C1—C7 | 122.04 (13) | C1—C7—H7 | 108.00 |
C2—C1—C6 | 118.08 (14) | C8—C7—H7 | 108.00 |
C2—C1—C7 | 119.74 (14) | C11—C7—H7 | 108.00 |
C1—C2—C3 | 121.22 (17) | C13—C14—H14A | 109.00 |
C2—C3—C4 | 119.25 (16) | C13—C14—H14B | 109.00 |
Cl1—C4—C3 | 119.52 (14) | C15—C14—H14A | 109.00 |
C3—C4—C5 | 121.21 (17) | C15—C14—H14B | 109.00 |
Cl1—C4—C5 | 119.27 (15) | H14A—C14—H14B | 108.00 |
C4—C5—C6 | 118.86 (17) | C10—C16—H16A | 109.00 |
C1—C6—C5 | 121.37 (15) | C10—C16—H16B | 109.00 |
C1—C7—C11 | 112.80 (12) | C15—C16—H16A | 109.00 |
C1—C7—C8 | 110.40 (12) | C15—C16—H16B | 109.00 |
C8—C7—C11 | 108.40 (12) | H16A—C16—H16B | 108.00 |
C7—C8—C9 | 123.08 (13) | C15—C17—H17A | 109.00 |
C7—C8—C12 | 117.87 (13) | C15—C17—H17B | 109.00 |
C9—C8—C12 | 118.83 (14) | C15—C17—H17C | 109.00 |
N2—C9—C8 | 128.24 (14) | H17A—C17—H17B | 109.00 |
O1—C9—N2 | 110.31 (12) | H17A—C17—H17C | 110.00 |
O1—C9—C8 | 121.45 (13) | H17B—C17—H17C | 109.00 |
O1—C10—C11 | 122.99 (13) | C15—C18—H18A | 109.00 |
O1—C10—C16 | 111.12 (12) | C15—C18—H18B | 109.00 |
C11—C10—C16 | 125.89 (14) | C15—C18—H18C | 109.00 |
C10—C11—C13 | 118.65 (13) | H18A—C18—H18B | 109.00 |
C7—C11—C10 | 122.53 (13) | H18A—C18—H18C | 109.00 |
C7—C11—C13 | 118.81 (12) | H18B—C18—H18C | 110.00 |
N1—C12—C8 | 178.38 (17) | O3—C19—C20 | 120.9 (2) |
O2—C13—C11 | 120.84 (14) | O3—C19—C21 | 122.05 (19) |
O2—C13—C14 | 121.28 (14) | C20—C19—C21 | 117.0 (2) |
C11—C13—C14 | 117.84 (13) | C19—C20—H20A | 109.00 |
C13—C14—C15 | 113.74 (13) | C19—C20—H20B | 110.00 |
C16—C15—C17 | 108.70 (13) | C19—C20—H20C | 109.00 |
C16—C15—C18 | 110.90 (13) | H20A—C20—H20B | 109.00 |
C17—C15—C18 | 108.98 (15) | H20A—C20—H20C | 109.00 |
C14—C15—C18 | 109.79 (14) | H20B—C20—H20C | 109.00 |
C14—C15—C16 | 108.05 (13) | C19—C21—H21A | 109.00 |
C14—C15—C17 | 110.41 (13) | C19—C21—H21B | 109.00 |
C10—C16—C15 | 113.11 (12) | C19—C21—H21C | 109.00 |
C1—C2—H2 | 119.00 | H21A—C21—H21B | 109.00 |
C3—C2—H2 | 119.00 | H21A—C21—H21C | 110.00 |
C2—C3—H3 | 120.00 | H21B—C21—H21C | 109.00 |
C4—C3—H3 | 120.00 | ||
C9—O1—C10—C16 | −173.19 (12) | C8—C7—C11—C10 | −15.79 (19) |
C10—O1—C9—N2 | 174.51 (12) | C8—C7—C11—C13 | 163.79 (13) |
C10—O1—C9—C8 | −5.5 (2) | C7—C8—C9—N2 | 172.17 (15) |
C9—O1—C10—C11 | 7.0 (2) | C12—C8—C9—O1 | 177.72 (13) |
C7—C1—C2—C3 | 176.02 (14) | C12—C8—C9—N2 | −2.3 (2) |
C2—C1—C6—C5 | −0.5 (2) | C7—C8—C9—O1 | −7.8 (2) |
C7—C1—C6—C5 | −176.29 (15) | O1—C10—C11—C7 | 5.0 (2) |
C6—C1—C2—C3 | 0.1 (2) | O1—C10—C11—C13 | −174.58 (13) |
C2—C1—C7—C8 | −94.69 (16) | C16—C10—C11—C7 | −174.80 (14) |
C2—C1—C7—C11 | 143.88 (14) | C16—C10—C11—C13 | 5.6 (2) |
C6—C1—C7—C8 | 81.04 (17) | O1—C10—C16—C15 | −162.22 (12) |
C6—C1—C7—C11 | −40.39 (19) | C11—C10—C16—C15 | 17.6 (2) |
C1—C2—C3—C4 | 0.3 (3) | C7—C11—C13—O2 | 0.4 (2) |
C2—C3—C4—Cl1 | 179.66 (13) | C7—C11—C13—C14 | −176.99 (14) |
C2—C3—C4—C5 | −0.3 (3) | C10—C11—C13—O2 | −180.00 (17) |
Cl1—C4—C5—C6 | 180.00 (15) | C10—C11—C13—C14 | 2.6 (2) |
C3—C4—C5—C6 | −0.1 (3) | O2—C13—C14—C15 | 148.89 (16) |
C4—C5—C6—C1 | 0.5 (3) | C11—C13—C14—C15 | −33.7 (2) |
C1—C7—C8—C12 | 67.77 (17) | C13—C14—C15—C16 | 53.89 (18) |
C11—C7—C8—C9 | 17.28 (19) | C13—C14—C15—C17 | 172.65 (15) |
C11—C7—C8—C12 | −168.22 (13) | C13—C14—C15—C18 | −67.18 (18) |
C1—C7—C11—C10 | 106.77 (16) | C14—C15—C16—C10 | −45.43 (17) |
C1—C7—C8—C9 | −106.73 (16) | C17—C15—C16—C10 | −165.27 (14) |
C1—C7—C11—C13 | −73.65 (17) | C18—C15—C16—C10 | 74.94 (17) |
Cg1 and Cg2 are the centroids of the O1/C7–C11 and C1–C6 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···N1i | 0.86 | 2.30 | 3.1552 (19) | 171 |
N2—H2B···O2ii | 0.86 | 2.15 | 2.9949 (18) | 167 |
C2—H2···N1iii | 0.93 | 2.51 | 3.234 (2) | 135 |
C6—H6···Cg1 | 0.93 | 2.76 | 3.0785 (17) | 101 |
C17—H17A···Cg2iv | 0.96 | 2.93 | 3.8221 (18) | 155 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) x−1, y, z; (iii) −x+2, −y, −z+1; (iv) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C18H17ClN2O2·C3H6O |
Mr | 386.86 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 8.1707 (2), 9.4386 (2), 13.5192 (4) |
α, β, γ (°) | 84.446 (1), 82.546 (2), 78.625 (1) |
V (Å3) | 1010.76 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.21 |
Crystal size (mm) | 0.28 × 0.25 × 0.23 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.942, 0.952 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16320, 4769, 3390 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.658 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.126, 1.04 |
No. of reflections | 4769 |
No. of parameters | 248 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.33, −0.34 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Cg1 and Cg2 are the centroids of the O1/C7–C11 and C1–C6 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···N1i | 0.86 | 2.30 | 3.1552 (19) | 171 |
N2—H2B···O2ii | 0.86 | 2.15 | 2.9949 (18) | 167 |
C2—H2···N1iii | 0.93 | 2.51 | 3.234 (2) | 135 |
C17—H17A···Cg2iv | 0.96 | 2.93 | 3.8221 (18) | 155 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) x−1, y, z; (iii) −x+2, −y, −z+1; (iv) x, y+1, z. |
Acknowledgements
AAA is grateful to the Azerbaijan Academic Exchange programme for financial support of this study. We thank Manchester Metropolitan University, Erciyes University and the University of Sargodha for facilitating this work.
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CrossRef Web of Science Google Scholar
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555–1573. CrossRef CAS Web of Science Google Scholar
Bruker (2005). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Coujon, J. Y., Zammattio, F., Pagnoncelli, S., Boursereau, Y. & Kirschleger, B. (2002). Synlett, pp. 322–324. Google Scholar
Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc. 97, 1354–1358. CrossRef CAS Web of Science Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Hu, X.-L., Wang, Z.-X., Wang, F.-M. & Han, G.-F. (2012). Acta Cryst. E68, o823. CSD CrossRef IUCr Journals Google Scholar
Kaye, P. T. & Nocanda, X. W. (2002). J. Chem. Soc. Perkin Trans. 1, pp. 1318–1323. Web of Science CrossRef Google Scholar
Mohamed, S. K., Akkurt, M., Abdelhamid, A. A., Singh, K. & Allahverdiyev, M. A. (2012). Acta Cryst. E68, o1414–o1415. CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
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.
Chromene compounds are important group of oxygen heterocycles. They have employed as useful intermediate in the synthesis of a wide range of natural products (Coujon et al., 2002). Such compounds have exhibited anti-depressant, anti-hypertensive as well as anti-ischaemic properties (Kaye & Nocanda, 2002). This triggered us to extend our on-going research program in synthesis of bioactive molecules and their pharmaceutical applications towards the synthesis of chromene nucleus containing compounds. We report in this study the synthesis and crystal structure study of 2-amino-4-(4-chlorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile–propan-2-one (1:1).
In the title compound (I), (Fig. 1), the C10/C11/C13–C16 cyclohexene ring is puckered with the puckering parameters (Cremer & Pople, 1975) of QT = 0.4596 (17) Å, θ = 55.9 (2)° and ϕ = 226.5 (3)°. The O1/C7–C11 4H-pyran ring is nearly planar with a maximum deviation of -0.108 (1) Å for C7 and is approximately perpendicular to the C1–C6 benzene ring [dihedral angle = 84.35 (7)°] and is almost co-planar with the mean plane of the cyclohexene ring [dihedral angle = 8.64 (7) °]. Bond lengths (Allen et al., 1987) and angles of the title compound are within normal ranges and are comparable to similar structures (Hu et al., 2012; Mohamed et al., 2012).
In the crystal, a pair of intermolecular N—H···N hydrogen bonds link the main molecules into an inversion dimer, generating an R22(12) graph-set motif (Bernstein et al., 1995; Table 1, Fig. 2). The dimers are further connected by N—H···O and C—H···N hydrogen bonds, forming a layer of molecules parallel to (011) (Table 1, Fig. 2). The layers are interconnected by weak C—H···π interactions, producing a three-dimensional network.