organic compounds
(E)-N-Benzyl-2-cyano-3-phenylacrylamide
aCollege of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637002, People's Republic of China
*Correspondence e-mail: kangtairan@yahoo.com.cn
In the title compound, C17H14N2O, the N-benzylformamide and phenyl groups are located on the opposite sides of the C=C bond, showing an E configuration; the terminal phenyl rings are twisted to each other at a dihedral angle of 63.61 (7)°. Intermolecular classical N—H⋯N and weak C—H⋯O hydrogen bonds occur in the crystal structure.
Related literature
For the use of malononitrile-containing compounds as building blocks in syntheses, see: Lee et al. (2002); Rajan et al. (2001); Yingyongnarongkul et al. (2006). For a related structure, see: Kang & Chen (2009).
Experimental
Crystal data
|
Refinement
|
Data collection: CrysAlis CCD (Oxford Diffraction, 2008); cell CrysAlis RED (Oxford Diffraction, 2008); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810049548/xu5098sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810049548/xu5098Isup2.hkl
N-Benzyl-2-cyanoacetamide (0.258 g, 2 mmol) and benzaldehyde (0.212 g, 2 mmol) were dissolved in 2-propanol (2 ml). To the solution was added piperidine (0.017 g, 0.2 mmol),the solution was stirred for 24 h at 273 K and the solution was filtered to obtain a solid. Recrystallization from hot ethanol afforded the pure compound. Single crystals of (I) suitable for X-ray analysis were obtained by slow evaporation ethanol solvent.
Imino H atom was located in a difference Fourier map and refined isotropically. Other H atoms were placed in calculated positions, with C—H = 0.93–0.97 Å, and refined using a riding model, with Uiso(H) = 1.2Ueq(C).
The phenylacrylamide derivatives have broad application for the preparation of heterocyclic ring compounds. The phenylacrylamide derivatives was studied extensively, Rajan (Rajan et al.,2001) synthesized a series of phenylacrylamide derivatives and evaluated their antioxidant properties as lipid peroxidation inhibitors. Some phenylacrylamide derivatives and analogues were synthesized and studied antibacterial activity against S. aureus (Yingyongnarongkul et al.,2006). Some phenylacrylamide derivatives were synthesized for the purpose of simplifying the structure of L-chicoric acid as new HIV-1 integrase inhibitors (Lee et al., 2002).As an extension of this research, we report the synthesis and the
of the title compound (I), namely, (E)—N-benzyl-2-cyano-3-phenylacrylamide.The molecular structure of (I) is shown in Fig. 1. Bond lengths and angles in (I) are normal. The dihedral angle between the C1—C6 and C12—C17 benzene planes is 63.62 (5)°. The crystal packing is stabilized by N—H···N an C—H···O hydrogen bonding (Table 1).
For the use of malononitrile-containing compounds as building blocks in syntheses, see: Lee et al. (2002); Rajan et al. (2001); Yingyongnarongkul et al. (2006). For a related structure, see: Kang & Chen (2009).
Data collection: CrysAlis CCD (Oxford Diffraction, 2008); cell
CrysAlis RED (Oxford Diffraction, 2008); data reduction: CrysAlis RED (Oxford Diffraction, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure of (I) with 30% probability displacement ellipsoids (arbitrary spheres for H atoms). |
C17H14N2O | Z = 2 |
Mr = 262.30 | F(000) = 276 |
Triclinic, P1 | Dx = 1.266 Mg m−3 |
Hall symbol: -P 1 | Cu Kα radiation, λ = 1.54184 Å |
a = 5.8956 (3) Å | Cell parameters from 3956 reflections |
b = 9.9224 (5) Å | θ = 4.5–72.2° |
c = 12.1400 (7) Å | µ = 0.64 mm−1 |
α = 94.508 (5)° | T = 291 K |
β = 99.544 (4)° | Block, yellow |
γ = 98.895 (4)° | 0.36 × 0.35 × 0.30 mm |
V = 687.95 (6) Å3 |
Oxford Diffraction Xcalibur Sapphire3 Gemini ultra diffractometer | 2407 independent reflections |
Radiation source: Enhance Ultra (Cu) X-ray Source | 2202 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.018 |
Detector resolution: 7.9575 pixels mm-1 | θmax = 67.1°, θmin = 4.5° |
ω scans | h = −6→7 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | k = −11→11 |
Tmin = 0.803, Tmax = 0.832 | l = −14→14 |
5416 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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.096 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0452P)2 + 0.101P] where P = (Fo2 + 2Fc2)/3 |
2407 reflections | (Δ/σ)max < 0.001 |
185 parameters | Δρmax = 0.14 e Å−3 |
2 restraints | Δρmin = −0.12 e Å−3 |
C17H14N2O | γ = 98.895 (4)° |
Mr = 262.30 | V = 687.95 (6) Å3 |
Triclinic, P1 | Z = 2 |
a = 5.8956 (3) Å | Cu Kα radiation |
b = 9.9224 (5) Å | µ = 0.64 mm−1 |
c = 12.1400 (7) Å | T = 291 K |
α = 94.508 (5)° | 0.36 × 0.35 × 0.30 mm |
β = 99.544 (4)° |
Oxford Diffraction Xcalibur Sapphire3 Gemini ultra diffractometer | 2407 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | 2202 reflections with I > 2σ(I) |
Tmin = 0.803, Tmax = 0.832 | Rint = 0.018 |
5416 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 2 restraints |
wR(F2) = 0.096 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.14 e Å−3 |
2407 reflections | Δρmin = −0.12 e Å−3 |
185 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 | ||
O1 | 0.28178 (15) | 0.43568 (9) | 0.56771 (8) | 0.0523 (3) | |
N2 | 0.53117 (17) | 0.28418 (10) | 0.58336 (8) | 0.0424 (3) | |
C4 | −0.2206 (2) | 0.19407 (12) | 0.31358 (9) | 0.0398 (3) | |
C12 | 0.7670 (2) | 0.35036 (12) | 0.77490 (10) | 0.0413 (3) | |
N1 | 0.2529 (2) | −0.02233 (11) | 0.42829 (10) | 0.0556 (3) | |
C8 | 0.1591 (2) | 0.22182 (11) | 0.45635 (9) | 0.0371 (3) | |
C3 | −0.3994 (2) | 0.26728 (13) | 0.27993 (11) | 0.0471 (3) | |
H3 | −0.3904 | 0.3563 | 0.3128 | 0.056* | |
C9 | 0.20860 (19) | 0.08566 (12) | 0.43834 (10) | 0.0405 (3) | |
C7 | −0.0298 (2) | 0.26411 (11) | 0.40119 (10) | 0.0389 (3) | |
H7 | −0.0409 | 0.3545 | 0.4229 | 0.047* | |
C11 | 0.7242 (2) | 0.37901 (13) | 0.65408 (11) | 0.0458 (3) | |
H11A | 0.6918 | 0.4717 | 0.6509 | 0.055* | |
H11B | 0.8653 | 0.3745 | 0.6237 | 0.055* | |
C10 | 0.32978 (19) | 0.32315 (11) | 0.54175 (9) | 0.0375 (3) | |
C2 | −0.5896 (2) | 0.20970 (15) | 0.19856 (12) | 0.0570 (4) | |
H2 | −0.7080 | 0.2596 | 0.1776 | 0.068* | |
C17 | 0.9529 (2) | 0.28819 (16) | 0.81647 (12) | 0.0576 (4) | |
H17 | 1.0518 | 0.2634 | 0.7691 | 0.069* | |
C15 | 0.8499 (3) | 0.29793 (18) | 0.99859 (13) | 0.0689 (4) | |
H15 | 0.8778 | 0.2804 | 1.0733 | 0.083* | |
C13 | 0.6229 (2) | 0.38575 (14) | 0.84780 (12) | 0.0536 (3) | |
H13 | 0.4967 | 0.4276 | 0.8216 | 0.064* | |
C5 | −0.2386 (3) | 0.06160 (14) | 0.26135 (12) | 0.0579 (4) | |
H5 | −0.1209 | 0.0109 | 0.2813 | 0.069* | |
C6 | −0.4295 (3) | 0.00533 (15) | 0.18032 (13) | 0.0666 (4) | |
H6 | −0.4404 | −0.0835 | 0.1467 | 0.080* | |
C14 | 0.6643 (3) | 0.35969 (16) | 0.95881 (13) | 0.0646 (4) | |
H14 | 0.5661 | 0.3840 | 1.0067 | 0.078* | |
C1 | −0.6041 (3) | 0.07908 (15) | 0.14864 (12) | 0.0613 (4) | |
H1 | −0.7318 | 0.0405 | 0.0935 | 0.074* | |
C16 | 0.9936 (3) | 0.26243 (19) | 0.92760 (14) | 0.0727 (5) | |
H16 | 1.1195 | 0.2206 | 0.9543 | 0.087* | |
H4 | 0.556 (2) | 0.2006 (13) | 0.5647 (12) | 0.054 (4)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0492 (5) | 0.0412 (5) | 0.0618 (6) | 0.0158 (4) | −0.0034 (4) | −0.0101 (4) |
N2 | 0.0437 (6) | 0.0402 (5) | 0.0415 (6) | 0.0134 (4) | −0.0015 (4) | −0.0002 (4) |
C4 | 0.0431 (6) | 0.0387 (6) | 0.0364 (6) | 0.0082 (5) | 0.0028 (5) | 0.0033 (5) |
C12 | 0.0383 (6) | 0.0394 (6) | 0.0423 (6) | 0.0043 (5) | 0.0002 (5) | 0.0003 (5) |
N1 | 0.0566 (7) | 0.0418 (6) | 0.0664 (7) | 0.0175 (5) | −0.0001 (5) | 0.0008 (5) |
C8 | 0.0409 (6) | 0.0347 (5) | 0.0360 (6) | 0.0089 (4) | 0.0059 (5) | 0.0023 (4) |
C3 | 0.0502 (7) | 0.0461 (7) | 0.0434 (7) | 0.0138 (5) | 0.0008 (5) | 0.0012 (5) |
C9 | 0.0406 (6) | 0.0386 (6) | 0.0406 (6) | 0.0097 (5) | 0.0006 (5) | 0.0016 (5) |
C7 | 0.0436 (6) | 0.0345 (6) | 0.0388 (6) | 0.0098 (5) | 0.0061 (5) | 0.0016 (5) |
C11 | 0.0398 (6) | 0.0491 (7) | 0.0459 (7) | 0.0060 (5) | 0.0021 (5) | 0.0051 (5) |
C10 | 0.0405 (6) | 0.0370 (6) | 0.0355 (6) | 0.0100 (5) | 0.0059 (5) | 0.0033 (4) |
C2 | 0.0504 (8) | 0.0660 (9) | 0.0508 (8) | 0.0160 (6) | −0.0066 (6) | 0.0042 (6) |
C17 | 0.0460 (7) | 0.0747 (9) | 0.0524 (8) | 0.0190 (6) | 0.0018 (6) | 0.0059 (7) |
C15 | 0.0760 (10) | 0.0812 (11) | 0.0422 (8) | 0.0034 (8) | −0.0028 (7) | 0.0101 (7) |
C13 | 0.0560 (8) | 0.0536 (8) | 0.0543 (8) | 0.0179 (6) | 0.0109 (6) | 0.0049 (6) |
C5 | 0.0632 (8) | 0.0441 (7) | 0.0597 (8) | 0.0163 (6) | −0.0101 (7) | −0.0042 (6) |
C6 | 0.0784 (10) | 0.0460 (8) | 0.0625 (9) | 0.0067 (7) | −0.0133 (8) | −0.0094 (7) |
C14 | 0.0777 (10) | 0.0672 (9) | 0.0505 (8) | 0.0113 (8) | 0.0197 (7) | 0.0003 (7) |
C1 | 0.0586 (8) | 0.0619 (9) | 0.0514 (8) | −0.0007 (7) | −0.0119 (6) | 0.0010 (7) |
C16 | 0.0598 (9) | 0.0964 (13) | 0.0599 (9) | 0.0238 (8) | −0.0093 (7) | 0.0186 (9) |
O1—C10 | 1.2240 (13) | C11—H11B | 0.9700 |
N2—C10 | 1.3372 (14) | C2—C1 | 1.371 (2) |
N2—C11 | 1.4612 (15) | C2—H2 | 0.9300 |
N2—H4 | 0.884 (12) | C17—C16 | 1.382 (2) |
C4—C5 | 1.3945 (17) | C17—H17 | 0.9300 |
C4—C3 | 1.3954 (16) | C15—C16 | 1.368 (2) |
C4—C7 | 1.4574 (16) | C15—C14 | 1.373 (2) |
C12—C17 | 1.3824 (17) | C15—H15 | 0.9300 |
C12—C13 | 1.3862 (18) | C13—C14 | 1.381 (2) |
C12—C11 | 1.5036 (17) | C13—H13 | 0.9300 |
N1—C9 | 1.1435 (15) | C5—C6 | 1.3781 (19) |
C8—C7 | 1.3443 (16) | C5—H5 | 0.9300 |
C8—C9 | 1.4334 (15) | C6—C1 | 1.374 (2) |
C8—C10 | 1.5084 (16) | C6—H6 | 0.9300 |
C3—C2 | 1.3803 (18) | C14—H14 | 0.9300 |
C3—H3 | 0.9300 | C1—H1 | 0.9300 |
C7—H7 | 0.9300 | C16—H16 | 0.9300 |
C11—H11A | 0.9700 | ||
C10—N2—C11 | 122.18 (10) | C1—C2—C3 | 120.08 (13) |
C10—N2—H4 | 120.6 (9) | C1—C2—H2 | 120.0 |
C11—N2—H4 | 117.1 (9) | C3—C2—H2 | 120.0 |
C5—C4—C3 | 117.89 (11) | C16—C17—C12 | 120.79 (14) |
C5—C4—C7 | 125.69 (11) | C16—C17—H17 | 119.6 |
C3—C4—C7 | 116.41 (10) | C12—C17—H17 | 119.6 |
C17—C12—C13 | 118.10 (12) | C16—C15—C14 | 119.57 (14) |
C17—C12—C11 | 120.65 (12) | C16—C15—H15 | 120.2 |
C13—C12—C11 | 121.25 (11) | C14—C15—H15 | 120.2 |
C7—C8—C9 | 123.69 (10) | C14—C13—C12 | 120.87 (13) |
C7—C8—C10 | 118.37 (10) | C14—C13—H13 | 119.6 |
C9—C8—C10 | 117.94 (9) | C12—C13—H13 | 119.6 |
C2—C3—C4 | 121.03 (12) | C6—C5—C4 | 120.46 (12) |
C2—C3—H3 | 119.5 | C6—C5—H5 | 119.8 |
C4—C3—H3 | 119.5 | C4—C5—H5 | 119.8 |
N1—C9—C8 | 177.26 (13) | C1—C6—C5 | 120.71 (13) |
C8—C7—C4 | 131.72 (10) | C1—C6—H6 | 119.6 |
C8—C7—H7 | 114.1 | C5—C6—H6 | 119.6 |
C4—C7—H7 | 114.1 | C15—C14—C13 | 120.19 (14) |
N2—C11—C12 | 113.92 (10) | C15—C14—H14 | 119.9 |
N2—C11—H11A | 108.8 | C13—C14—H14 | 119.9 |
C12—C11—H11A | 108.8 | C2—C1—C6 | 119.82 (13) |
N2—C11—H11B | 108.8 | C2—C1—H1 | 120.1 |
C12—C11—H11B | 108.8 | C6—C1—H1 | 120.1 |
H11A—C11—H11B | 107.7 | C15—C16—C17 | 120.48 (14) |
O1—C10—N2 | 123.51 (11) | C15—C16—H16 | 119.8 |
O1—C10—C8 | 119.71 (10) | C17—C16—H16 | 119.8 |
N2—C10—C8 | 116.76 (10) | ||
C5—C4—C3—C2 | 0.8 (2) | C9—C8—C10—N2 | 8.94 (16) |
C7—C4—C3—C2 | −179.17 (12) | C4—C3—C2—C1 | −0.6 (2) |
C7—C8—C9—N1 | −153 (3) | C13—C12—C17—C16 | −0.1 (2) |
C10—C8—C9—N1 | 27 (3) | C11—C12—C17—C16 | 179.64 (13) |
C9—C8—C7—C4 | −1.4 (2) | C17—C12—C13—C14 | 0.1 (2) |
C10—C8—C7—C4 | 178.30 (11) | C11—C12—C13—C14 | −179.67 (12) |
C5—C4—C7—C8 | −4.2 (2) | C3—C4—C5—C6 | −0.9 (2) |
C3—C4—C7—C8 | 175.79 (12) | C7—C4—C5—C6 | 179.10 (14) |
C10—N2—C11—C12 | 109.92 (13) | C4—C5—C6—C1 | 0.7 (3) |
C17—C12—C11—N2 | 104.01 (14) | C16—C15—C14—C13 | 0.0 (3) |
C13—C12—C11—N2 | −76.26 (15) | C12—C13—C14—C15 | 0.0 (2) |
C11—N2—C10—O1 | −7.34 (18) | C3—C2—C1—C6 | 0.4 (2) |
C11—N2—C10—C8 | 171.11 (10) | C5—C6—C1—C2 | −0.5 (3) |
C7—C8—C10—O1 | 7.69 (17) | C14—C15—C16—C17 | 0.0 (3) |
C9—C8—C10—O1 | −172.55 (11) | C12—C17—C16—C15 | 0.1 (3) |
C7—C8—C10—N2 | −170.82 (11) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H4···N1i | 0.88 (1) | 2.24 (1) | 3.0687 (14) | 157 (1) |
C3—H3···O1ii | 0.93 | 2.36 | 3.2672 (16) | 164 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C17H14N2O |
Mr | 262.30 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 291 |
a, b, c (Å) | 5.8956 (3), 9.9224 (5), 12.1400 (7) |
α, β, γ (°) | 94.508 (5), 99.544 (4), 98.895 (4) |
V (Å3) | 687.95 (6) |
Z | 2 |
Radiation type | Cu Kα |
µ (mm−1) | 0.64 |
Crystal size (mm) | 0.36 × 0.35 × 0.30 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Sapphire3 Gemini ultra |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.803, 0.832 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5416, 2407, 2202 |
Rint | 0.018 |
(sin θ/λ)max (Å−1) | 0.597 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.096, 1.05 |
No. of reflections | 2407 |
No. of parameters | 185 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.14, −0.12 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2008), CrysAlis RED (Oxford Diffraction, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H4···N1i | 0.884 (12) | 2.238 (13) | 3.0687 (14) | 156.5 (12) |
C3—H3···O1ii | 0.93 | 2.363 | 3.2672 (16) | 164 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x, −y+1, −z+1. |
Acknowledgements
The authors thank the Testing Centre of the Sichuan University for the diffraction measurements and are grateful for financial support from China West Normal University (No. 412374).
References
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The phenylacrylamide derivatives have broad application for the preparation of heterocyclic ring compounds. The phenylacrylamide derivatives was studied extensively, Rajan (Rajan et al.,2001) synthesized a series of phenylacrylamide derivatives and evaluated their antioxidant properties as lipid peroxidation inhibitors. Some phenylacrylamide derivatives and analogues were synthesized and studied antibacterial activity against S. aureus (Yingyongnarongkul et al.,2006). Some phenylacrylamide derivatives were synthesized for the purpose of simplifying the structure of L-chicoric acid as new HIV-1 integrase inhibitors (Lee et al., 2002).As an extension of this research, we report the synthesis and the crystal structure of the title compound (I), namely, (E)—N-benzyl-2-cyano-3-phenylacrylamide.
The molecular structure of (I) is shown in Fig. 1. Bond lengths and angles in (I) are normal. The dihedral angle between the C1—C6 and C12—C17 benzene planes is 63.62 (5)°. The crystal packing is stabilized by N—H···N an C—H···O hydrogen bonding (Table 1).