Experimental
Crystal data
C16H12N2O2 Mr = 264.28 Orthorhombic, P 21 21 21 a = 5.459 (2) Å b = 11.141 (7) Å c = 21.844 (5) Å V = 1328.6 (10) Å3 Z = 4 Mo Kα radiation μ = 0.09 mm−1 T = 291 K 0.36 × 0.32 × 0.26 mm
|
Data collection
Oxford Diffraction Gemini S Ultra diffractometer 9766 measured reflections 2078 independent reflections 1378 reflections with I > 2σ(I) Rint = 0.042
|
D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A | N1—H4⋯O1i | 0.86 | 2.46 | 3.239 (3) | 151 (1) | C11—H11⋯O1i | 0.93 | 2.56 | 3.467 (3) | 165 (1) | C12—H12⋯O2ii | 0.93 | 2.55 | 3.302 (3) | 139 (1) | Symmetry codes: (i) x+1, y, z; (ii) . | |
Data collection: CrysAlis PRO (Oxford Diffraction, 2009
); cell refinement: 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: ORTEP-3 (Farrugia, 1997
); software used to prepare material for publication: SHELXL97.
Supporting information
2-Chloro-N-phenylacetamide (0.17 g, 1.0 mmol) and sodium ethanolate (0.14 g, 2.0 mmol) were dissolved in acetonitrile (2 ml). To the solution was added 3-formylbenzonitrile (0.131 g, 1.0 mmol) at 298 K, the solution was stirred for 60 min and removal of solvent under reduced pressure, the residue was purified through column chromatography on silica gel to give compound (I). Crystals suitable for X-ray analysis were obtained by dissolving the title compound (0.02 g) in ethyl acetate (2 ml) and evaporating the solvent slowly at room temperature for about 1 d.
H atoms were placed in calculated positions, with C—H = 0.93–0.98 Å, and N—H = 0.86 Å, and refined using a riding model with Uiso(H) = 1.2Ueq(C,N). As no significant anomalous scattering, Friedel pairs were merged.
Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell refinement: CrysAlis PRO (Oxford Diffraction, 2009); data reduction: CrysAlis PRO (Oxford Diffraction, 2009); 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).
3-(3-Cyanophenyl)-
N-phenyloxirane-2-carboxamide
top Crystal data top C16H12N2O2 | Dx = 1.321 Mg m−3 |
Mr = 264.28 | Mo Kα radiation, λ = 0.71073 Å |
Orthorhombic, P212121 | Cell parameters from 3256 reflections |
a = 5.459 (2) Å | θ = 3.3–29.0° |
b = 11.141 (7) Å | µ = 0.09 mm−1 |
c = 21.844 (5) Å | T = 291 K |
V = 1328.6 (10) Å3 | Block, colorless |
Z = 4 | 0.36 × 0.32 × 0.26 mm |
F(000) = 552 | |
Data collection top Oxford Diffraction Gemini S Ultra diffractometer | 1378 reflections with I > 2σ(I) |
Radiation source: Enhance (Mo) X-ray Source | Rint = 0.042 |
Graphite monochromator | θmax = 29.2°, θmin = 3.3° |
Detector resolution: 15.9149 pixels mm-1 | h = −7→3 |
ω scans | k = −15→15 |
9766 measured reflections | l = −29→27 |
2078 independent reflections | |
Refinement top 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)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.072 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0322P)2] where P = (Fo2 + 2Fc2)/3 |
2078 reflections | (Δ/σ)max < 0.001 |
181 parameters | Δρmax = 0.14 e Å−3 |
1 restraint | Δρmin = −0.18 e Å−3 |
Crystal data top C16H12N2O2 | V = 1328.6 (10) Å3 |
Mr = 264.28 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 5.459 (2) Å | µ = 0.09 mm−1 |
b = 11.141 (7) Å | T = 291 K |
c = 21.844 (5) Å | 0.36 × 0.32 × 0.26 mm |
Data collection top Oxford Diffraction Gemini S Ultra diffractometer | 1378 reflections with I > 2σ(I) |
9766 measured reflections | Rint = 0.042 |
2078 independent reflections | |
Refinement top R[F2 > 2σ(F2)] = 0.038 | 1 restraint |
wR(F2) = 0.072 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.14 e Å−3 |
2078 reflections | Δρmin = −0.18 e Å−3 |
181 parameters | |
Special details top 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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
O2 | 0.2729 (2) | 1.02915 (12) | 0.76684 (6) | 0.0522 (4) | |
O1 | −0.2382 (2) | 0.87594 (13) | 0.69492 (6) | 0.0540 (4) | |
N1 | 0.1739 (3) | 0.86142 (13) | 0.67637 (7) | 0.0416 (4) | |
H4 | 0.3135 | 0.8914 | 0.6864 | 0.050* | |
C4 | 0.1740 (3) | 0.76926 (15) | 0.63124 (8) | 0.0350 (4) | |
C3 | 0.3670 (3) | 0.68860 (17) | 0.63104 (9) | 0.0430 (5) | |
H3 | 0.4906 | 0.6946 | 0.6602 | 0.052* | |
C6 | −0.0019 (4) | 0.67021 (17) | 0.54450 (8) | 0.0453 (5) | |
H6 | −0.1252 | 0.6639 | 0.5153 | 0.054* | |
C10 | 0.1794 (3) | 0.85668 (17) | 0.83606 (8) | 0.0389 (4) | |
C2 | 0.3746 (4) | 0.59914 (18) | 0.58733 (9) | 0.0481 (5) | |
H2 | 0.5047 | 0.5453 | 0.5866 | 0.058* | |
C1 | 0.1884 (4) | 0.58954 (18) | 0.54452 (9) | 0.0446 (5) | |
H1 | 0.1923 | 0.5282 | 0.5157 | 0.053* | |
C9 | 0.1163 (3) | 0.97731 (17) | 0.81328 (9) | 0.0429 (5) | |
H9 | 0.0615 | 1.0337 | 0.8449 | 0.051* | |
C5 | −0.0106 (3) | 0.76092 (17) | 0.58780 (8) | 0.0423 (5) | |
H5 | −0.1391 | 0.8157 | 0.5878 | 0.051* | |
C8 | 0.0212 (4) | 1.00240 (16) | 0.75099 (9) | 0.0442 (4) | |
H8 | −0.0867 | 1.0724 | 0.7479 | 0.053* | |
C15 | 0.0302 (3) | 0.80528 (19) | 0.88008 (9) | 0.0470 (5) | |
H15 | −0.1075 | 0.8466 | 0.8937 | 0.056* | |
C11 | 0.3875 (4) | 0.79694 (18) | 0.81664 (9) | 0.0491 (5) | |
H11 | 0.4905 | 0.8318 | 0.7878 | 0.059* | |
C14 | 0.0830 (3) | 0.6931 (2) | 0.90422 (9) | 0.0504 (5) | |
C7 | −0.0260 (4) | 0.90608 (17) | 0.70496 (8) | 0.0397 (4) | |
C12 | 0.4420 (4) | 0.68306 (19) | 0.84092 (10) | 0.0567 (6) | |
H12 | 0.5803 | 0.6418 | 0.8277 | 0.068* | |
C16 | −0.0707 (4) | 0.6410 (2) | 0.94879 (11) | 0.0735 (7) | |
C13 | 0.2917 (4) | 0.6330 (2) | 0.88396 (10) | 0.0552 (5) | |
H13 | 0.3292 | 0.5579 | 0.8999 | 0.066* | |
N2 | −0.1971 (5) | 0.5975 (2) | 0.98491 (12) | 0.1095 (10) | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
O2 | 0.0630 (9) | 0.0466 (8) | 0.0469 (8) | −0.0178 (7) | 0.0058 (7) | −0.0050 (6) |
O1 | 0.0430 (7) | 0.0614 (10) | 0.0576 (9) | −0.0045 (7) | 0.0059 (7) | −0.0130 (7) |
N1 | 0.0377 (8) | 0.0450 (9) | 0.0421 (9) | −0.0068 (7) | 0.0002 (7) | −0.0096 (8) |
C4 | 0.0367 (9) | 0.0361 (10) | 0.0323 (10) | −0.0069 (8) | 0.0031 (8) | 0.0022 (8) |
C3 | 0.0356 (9) | 0.0477 (12) | 0.0457 (11) | −0.0025 (9) | −0.0070 (9) | −0.0043 (10) |
C6 | 0.0479 (11) | 0.0535 (12) | 0.0344 (10) | −0.0047 (10) | −0.0047 (9) | −0.0005 (10) |
C10 | 0.0424 (10) | 0.0417 (10) | 0.0327 (10) | −0.0036 (9) | −0.0020 (8) | −0.0081 (9) |
C2 | 0.0424 (10) | 0.0458 (12) | 0.0561 (13) | 0.0033 (10) | 0.0024 (10) | −0.0049 (10) |
C1 | 0.0531 (12) | 0.0429 (11) | 0.0376 (11) | −0.0061 (10) | 0.0074 (9) | −0.0057 (9) |
C9 | 0.0511 (10) | 0.0401 (11) | 0.0375 (11) | −0.0015 (9) | 0.0085 (9) | −0.0064 (9) |
C5 | 0.0446 (10) | 0.0454 (11) | 0.0370 (11) | 0.0053 (10) | −0.0027 (9) | 0.0009 (9) |
C8 | 0.0537 (11) | 0.0371 (10) | 0.0418 (11) | −0.0009 (9) | 0.0034 (9) | −0.0023 (9) |
C15 | 0.0455 (10) | 0.0526 (12) | 0.0429 (12) | 0.0048 (10) | 0.0038 (10) | −0.0010 (10) |
C11 | 0.0448 (10) | 0.0616 (14) | 0.0408 (11) | 0.0010 (10) | 0.0056 (9) | −0.0048 (11) |
C14 | 0.0535 (12) | 0.0542 (13) | 0.0435 (12) | 0.0022 (11) | −0.0021 (10) | 0.0068 (11) |
C7 | 0.0475 (11) | 0.0356 (10) | 0.0359 (10) | −0.0027 (9) | 0.0026 (9) | 0.0031 (9) |
C12 | 0.0561 (13) | 0.0611 (15) | 0.0529 (13) | 0.0186 (11) | 0.0003 (11) | −0.0095 (12) |
C16 | 0.0719 (16) | 0.0759 (16) | 0.0726 (17) | 0.0088 (14) | 0.0115 (14) | 0.0317 (15) |
C13 | 0.0690 (14) | 0.0470 (12) | 0.0496 (12) | 0.0069 (12) | −0.0081 (11) | −0.0007 (10) |
N2 | 0.1022 (19) | 0.111 (2) | 0.115 (2) | 0.0091 (16) | 0.0281 (17) | 0.0571 (17) |
Geometric parameters (Å, º) top O2—C9 | 1.447 (2) | C2—H2 | 0.9300 |
O2—C8 | 1.448 (2) | C1—H1 | 0.9300 |
O1—C7 | 1.226 (2) | C9—C8 | 1.483 (3) |
N1—C7 | 1.352 (2) | C9—H9 | 0.9800 |
N1—C4 | 1.423 (2) | C5—H5 | 0.9300 |
N1—H4 | 0.8600 | C8—C7 | 1.493 (3) |
C4—C3 | 1.384 (2) | C8—H8 | 0.9800 |
C4—C5 | 1.387 (2) | C15—C14 | 1.387 (3) |
C3—C2 | 1.381 (3) | C15—H15 | 0.9300 |
C3—H3 | 0.9300 | C11—C12 | 1.407 (2) |
C6—C1 | 1.374 (3) | C11—H11 | 0.9300 |
C6—C5 | 1.385 (3) | C14—C13 | 1.394 (3) |
C6—H6 | 0.9300 | C14—C16 | 1.411 (2) |
C10—C11 | 1.383 (3) | C12—C13 | 1.367 (3) |
C10—C15 | 1.384 (2) | C12—H12 | 0.9300 |
C10—C9 | 1.474 (3) | C16—N2 | 1.155 (3) |
C2—C1 | 1.385 (3) | C13—H13 | 0.9300 |
| | | |
C9—O2—C8 | 61.64 (11) | C6—C5—C4 | 119.40 (18) |
C7—N1—C4 | 125.86 (15) | C6—C5—H5 | 120.3 |
C7—N1—H4 | 117.1 | C4—C5—H5 | 120.3 |
C4—N1—H4 | 117.1 | O2—C8—C9 | 59.14 (12) |
C3—C4—C5 | 120.47 (17) | O2—C8—C7 | 118.21 (15) |
C3—C4—N1 | 118.09 (16) | C9—C8—C7 | 122.89 (16) |
C5—C4—N1 | 121.43 (16) | O2—C8—H8 | 115.0 |
C2—C3—C4 | 119.58 (17) | C9—C8—H8 | 115.0 |
C2—C3—H3 | 120.2 | C7—C8—H8 | 115.0 |
C4—C3—H3 | 120.2 | C10—C15—C14 | 120.97 (18) |
C1—C6—C5 | 120.21 (18) | C10—C15—H15 | 119.5 |
C1—C6—H6 | 119.9 | C14—C15—H15 | 119.5 |
C5—C6—H6 | 119.9 | C10—C11—C12 | 119.47 (18) |
C11—C10—C15 | 119.82 (18) | C10—C11—H11 | 120.3 |
C11—C10—C9 | 121.80 (17) | C12—C11—H11 | 120.3 |
C15—C10—C9 | 118.31 (17) | C15—C14—C13 | 118.82 (19) |
C3—C2—C1 | 120.03 (18) | C15—C14—C16 | 120.7 (2) |
C3—C2—H2 | 120.0 | C13—C14—C16 | 120.5 (2) |
C1—C2—H2 | 120.0 | O1—C7—N1 | 125.40 (18) |
C6—C1—C2 | 120.31 (17) | O1—C7—C8 | 118.70 (17) |
C6—C1—H1 | 119.8 | N1—C7—C8 | 115.87 (16) |
C2—C1—H1 | 119.8 | C13—C12—C11 | 120.00 (19) |
O2—C9—C10 | 117.57 (16) | C13—C12—H12 | 120.0 |
O2—C9—C8 | 59.22 (12) | C11—C12—H12 | 120.0 |
C10—C9—C8 | 124.29 (16) | N2—C16—C14 | 179.4 (3) |
O2—C9—H9 | 114.7 | C12—C13—C14 | 120.9 (2) |
C10—C9—H9 | 114.7 | C12—C13—H13 | 119.5 |
C8—C9—H9 | 114.7 | C14—C13—H13 | 119.5 |
| | | |
C7—N1—C4—C3 | −143.99 (18) | C10—C9—C8—C7 | 1.4 (3) |
C7—N1—C4—C5 | 37.1 (3) | C11—C10—C15—C14 | −1.4 (3) |
C5—C4—C3—C2 | −0.2 (3) | C9—C10—C15—C14 | −178.62 (18) |
N1—C4—C3—C2 | −179.08 (17) | C15—C10—C11—C12 | 1.5 (3) |
C4—C3—C2—C1 | −0.8 (3) | C9—C10—C11—C12 | 178.54 (18) |
C5—C6—C1—C2 | −0.8 (3) | C10—C15—C14—C13 | 0.8 (3) |
C3—C2—C1—C6 | 1.3 (3) | C10—C15—C14—C16 | −179.6 (2) |
C8—O2—C9—C10 | 115.39 (18) | C4—N1—C7—O1 | −2.2 (3) |
C11—C10—C9—O2 | 3.5 (3) | C4—N1—C7—C8 | 179.70 (15) |
C15—C10—C9—O2 | −179.39 (15) | O2—C8—C7—O1 | 174.09 (18) |
C11—C10—C9—C8 | 73.5 (3) | C9—C8—C7—O1 | 104.4 (2) |
C15—C10—C9—C8 | −109.4 (2) | O2—C8—C7—N1 | −7.6 (2) |
C1—C6—C5—C4 | −0.2 (3) | C9—C8—C7—N1 | −77.4 (2) |
C3—C4—C5—C6 | 0.7 (3) | C10—C11—C12—C13 | −0.9 (3) |
N1—C4—C5—C6 | 179.55 (16) | C11—C12—C13—C14 | 0.3 (3) |
C9—O2—C8—C7 | −113.41 (19) | C15—C14—C13—C12 | −0.2 (3) |
C10—C9—C8—O2 | −104.2 (2) | C16—C14—C13—C12 | −179.8 (2) |
O2—C9—C8—C7 | 105.6 (2) | | |
Hydrogen-bond geometry (Å, º) top D—H···A | D—H | H···A | D···A | D—H···A |
N1—H4···O1i | 0.86 | 2.46 | 3.239 (3) | 151 (1) |
C11—H11···O1i | 0.93 | 2.56 | 3.467 (3) | 165 (1) |
C12—H12···O2ii | 0.93 | 2.55 | 3.302 (3) | 139 (1) |
Symmetry codes: (i) x+1, y, z; (ii) −x+1, y−1/2, −z+3/2. |
Experimental details
Crystal data |
Chemical formula | C16H12N2O2 |
Mr | 264.28 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 291 |
a, b, c (Å) | 5.459 (2), 11.141 (7), 21.844 (5) |
V (Å3) | 1328.6 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.36 × 0.32 × 0.26 |
|
Data collection |
Diffractometer | Oxford Diffraction Gemini S Ultra diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9766, 2078, 1378 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.687 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.072, 1.00 |
No. of reflections | 2078 |
No. of parameters | 181 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.14, −0.18 |
Hydrogen-bond geometry (Å, º) top D—H···A | D—H | H···A | D···A | D—H···A |
N1—H4···O1i | 0.86 | 2.46 | 3.239 (3) | 150.8 (2) |
C11—H11···O1i | 0.93 | 2.56 | 3.467 (3) | 165.4 (3) |
C12—H12···O2ii | 0.93 | 2.55 | 3.302 (3) | 138.7 (1) |
Symmetry codes: (i) x+1, y, z; (ii) −x+1, y−1/2, −z+3/2. |
Acknowledgements
The diffraction measurements were made at the Centre for Testing and Analysis, Sichuan University. We acknowledge financial support from China West Normal University.
References
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α, β-epoxides are key intermediates for synthesizing some natural products (Porter & Skidmore, 2000; Righi et al., 1996). Selective ring opening reactions of oxiranes also provide powerful and efficient routes to a variety of useful compounds including 2,3-epoxyketone (Meth-Cohn et al., 1999), aziridinecarboxylate (Thijs et al., 1990). Various effective systems have been developed over the years for the preparation of chiral epoxides. As a part of our interest in the synthsis of epoxides ring systems (Chen & Kang, 2009a,b; He, 2009, He et al. (2009)), we synthesis the title compound by using Darzens reaction. We report herein the crystal structure of the title compound.
The molecular structure of (I) is shown in Fig. 1. Bond lengths and angles in (I) are normal. The cyanophenyl ring and N-phenylformamide units adopts a cis conformation with respect to the epoxides ring, the dihedral angle between the two phenyl ring is 84.75 (6)°. Epoxide ring makes dihedral angles of 76.59 (10)° and 62.40 (11)° with phenyl rings C1—C6 and C10—C15, respectively. The crystal packing is stabilized by C—H···O and N—H···O hydrogen bonding (Table 1).