organic compounds
Diethyl (E)-2,3-bis[(E)-(2-methyl-2-phenylhydrazin-1-ylidene)methyl]but-2-enedioate
aCollege of Life Science and Bio-engineering, Beijing University of Technology, Pingleyuan Street No. 100, Chaoyang District, Beijing 100124, People's Republic of China
*Correspondence e-mail: hongyan@bjut.edu.cn
The complete molecule of the title compound, C24H28N4O4, is generated by crystallographic inversion symmetry. The ethyl side chain is disordered over two sets of sites in a 0.57 (4):0.43 (4) ratio. The dihedral angles between the methylidene group and the phenyl ring and ester side chain (major conformation) are 7.61 (8) and 86.95 (8)°, respectively. In the crystal, molecules are linked via C—H⋯O hydrogen bonds, forming corrugated sheets lying parallel to (010).
CCDC reference: 1004694
Related literature
For background to this class of compound, see: Aumann et al. (1987). For studies of related molecules, see: Mandal & Basak (2009); Woerlee et al. (1984).
Experimental
Crystal data
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Data collection: CrystalClear (Rigaku/MSC, 2005); cell CrystalClear; data reduction: CrystalClear; 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
CCDC reference: 1004694
10.1107/S1600536814011970/hb7226sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814011970/hb7226Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814011970/hb7226Isup3.cml
Ethyl 3-ethoxy-2-nitroacrylate (10.6 mmol) and hydrazine (10.6 mmol) were stirred in ethanol, and the solution was heated briefly to boiling. A yellow solid was collected by filtration after the mixture was left to stand for 24 h. The product was recrystallized from dichloromethane and petroleum ether as red blocks in 31% yield (m.p. 160° C).
Data collection: CrystalClear (Rigaku/MSC, 2005); cell
CrystalClear (Rigaku/MSC, 2005); data reduction: CrystalClear (Rigaku/MSC, 2005); 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).C24H28N4O4 | Dx = 1.215 Mg m−3 |
Mr = 436.50 | Mo Kα radiation, λ = 0.71073 Å |
Orthorhombic, Pbca | Cell parameters from 6374 reflections |
a = 15.922 (3) Å | θ = 2.2–27.9° |
b = 8.0335 (16) Å | µ = 0.08 mm−1 |
c = 18.655 (4) Å | T = 113 K |
V = 2386.2 (8) Å3 | Block, red |
Z = 4 | 0.20 × 0.10 × 0.08 mm |
F(000) = 928 |
Rigaku Saturn CCD diffractometer | 2093 independent reflections |
Radiation source: rotating anode | 1925 reflections with I > 2σ(I) |
Multilayer monochromator | Rint = 0.034 |
Detector resolution: 7.31 pixels mm-1 | θmax = 25.0°, θmin = 2.5° |
ω and ϕ scans | h = −15→18 |
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005) | k = −9→9 |
Tmin = 0.983, Tmax = 0.993 | l = −22→22 |
14849 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.038 | H-atom parameters constrained |
wR(F2) = 0.099 | w = 1/[σ2(Fo2) + (0.0585P)2 + 0.373P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max = 0.001 |
2093 reflections | Δρmax = 0.18 e Å−3 |
168 parameters | Δρmin = −0.16 e Å−3 |
40 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.063 (4) |
C24H28N4O4 | V = 2386.2 (8) Å3 |
Mr = 436.50 | Z = 4 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 15.922 (3) Å | µ = 0.08 mm−1 |
b = 8.0335 (16) Å | T = 113 K |
c = 18.655 (4) Å | 0.20 × 0.10 × 0.08 mm |
Rigaku Saturn CCD diffractometer | 2093 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005) | 1925 reflections with I > 2σ(I) |
Tmin = 0.983, Tmax = 0.993 | Rint = 0.034 |
14849 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 40 restraints |
wR(F2) = 0.099 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.18 e Å−3 |
2093 reflections | Δρmin = −0.16 e Å−3 |
168 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 | Occ. (<1) | |
O1 | 0.17130 (5) | 0.95435 (11) | 0.47833 (5) | 0.0331 (3) | |
O2 | 0.08700 (5) | 0.74716 (11) | 0.44282 (5) | 0.0363 (3) | |
N1 | 0.03970 (6) | 1.17222 (12) | 0.29214 (5) | 0.0269 (3) | |
N2 | 0.05365 (6) | 1.08830 (12) | 0.35347 (5) | 0.0240 (3) | |
C1 | 0.10279 (7) | 1.15535 (14) | 0.23935 (6) | 0.0258 (3) | |
C2 | 0.09073 (9) | 1.21349 (17) | 0.16961 (7) | 0.0365 (3) | |
H2A | 0.0404 | 1.2705 | 0.1574 | 0.044* | |
C3 | 0.15209 (11) | 1.18797 (19) | 0.11824 (7) | 0.0468 (4) | |
H3A | 0.1438 | 1.2298 | 0.0711 | 0.056* | |
C4 | 0.22471 (10) | 1.1034 (2) | 0.13400 (8) | 0.0484 (4) | |
H4A | 0.2658 | 1.0845 | 0.0980 | 0.058* | |
C5 | 0.23704 (9) | 1.04608 (18) | 0.20314 (7) | 0.0416 (4) | |
H5A | 0.2870 | 0.9872 | 0.2145 | 0.050* | |
C6 | 0.17769 (8) | 1.07337 (16) | 0.25580 (7) | 0.0315 (3) | |
H6A | 0.1878 | 1.0363 | 0.3034 | 0.038* | |
C7 | −0.03664 (8) | 1.26664 (17) | 0.28254 (7) | 0.0373 (3) | |
H7A | −0.0408 | 1.3515 | 0.3201 | 0.056* | |
H7B | −0.0851 | 1.1917 | 0.2855 | 0.056* | |
H7C | −0.0358 | 1.3208 | 0.2355 | 0.056* | |
C8 | 0.00195 (7) | 1.09756 (14) | 0.40658 (6) | 0.0243 (3) | |
H8A | −0.0473 | 1.1640 | 0.4044 | 0.029* | |
C9 | 0.02301 (7) | 1.00148 (13) | 0.46959 (6) | 0.0229 (3) | |
C10 | 0.10276 (7) | 0.90180 (14) | 0.46439 (6) | 0.0235 (3) | |
C11 | 0.1581 (6) | 0.6302 (13) | 0.4421 (8) | 0.0421 (19) | 0.57 (4) |
H11A | 0.1836 | 0.6218 | 0.4904 | 0.051* | 0.57 (4) |
H11B | 0.2017 | 0.6679 | 0.4079 | 0.051* | 0.57 (4) |
C12 | 0.1231 (7) | 0.4658 (13) | 0.4194 (9) | 0.052 (2) | 0.57 (4) |
H12A | 0.1689 | 0.3854 | 0.4140 | 0.078* | 0.57 (4) |
H12B | 0.0938 | 0.4784 | 0.3735 | 0.078* | 0.57 (4) |
H12C | 0.0835 | 0.4258 | 0.4558 | 0.078* | 0.57 (4) |
C11' | 0.1622 (7) | 0.6478 (17) | 0.4289 (12) | 0.045 (3) | 0.43 (4) |
H11C | 0.1926 | 0.6258 | 0.4743 | 0.054* | 0.43 (4) |
H11D | 0.2003 | 0.7077 | 0.3959 | 0.054* | 0.43 (4) |
C12' | 0.1334 (9) | 0.4862 (17) | 0.3956 (10) | 0.048 (2) | 0.43 (4) |
H12D | 0.1802 | 0.4070 | 0.3948 | 0.071* | 0.43 (4) |
H12E | 0.1143 | 0.5070 | 0.3465 | 0.071* | 0.43 (4) |
H12F | 0.0871 | 0.4399 | 0.4238 | 0.071* | 0.43 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0242 (5) | 0.0348 (5) | 0.0403 (5) | −0.0016 (4) | −0.0039 (4) | −0.0055 (4) |
O2 | 0.0245 (5) | 0.0250 (5) | 0.0593 (6) | 0.0043 (4) | −0.0072 (4) | −0.0100 (4) |
N1 | 0.0295 (6) | 0.0269 (5) | 0.0241 (5) | 0.0043 (4) | −0.0007 (4) | 0.0049 (4) |
N2 | 0.0276 (6) | 0.0224 (5) | 0.0221 (5) | 0.0000 (4) | −0.0013 (4) | 0.0010 (4) |
C1 | 0.0306 (7) | 0.0229 (6) | 0.0238 (6) | −0.0058 (5) | 0.0006 (5) | −0.0013 (4) |
C2 | 0.0445 (8) | 0.0366 (7) | 0.0283 (7) | −0.0022 (6) | −0.0028 (6) | 0.0055 (5) |
C3 | 0.0619 (10) | 0.0532 (9) | 0.0254 (7) | −0.0081 (8) | 0.0061 (7) | 0.0062 (6) |
C4 | 0.0516 (10) | 0.0571 (9) | 0.0366 (7) | −0.0069 (7) | 0.0177 (7) | −0.0026 (7) |
C5 | 0.0345 (8) | 0.0477 (8) | 0.0427 (8) | −0.0009 (6) | 0.0099 (6) | −0.0005 (6) |
C6 | 0.0303 (7) | 0.0356 (7) | 0.0285 (6) | −0.0015 (5) | 0.0016 (5) | 0.0024 (5) |
C7 | 0.0341 (8) | 0.0414 (8) | 0.0366 (7) | 0.0111 (6) | −0.0008 (6) | 0.0104 (6) |
C8 | 0.0237 (6) | 0.0228 (6) | 0.0263 (6) | 0.0015 (5) | −0.0008 (5) | −0.0013 (4) |
C9 | 0.0231 (6) | 0.0210 (6) | 0.0245 (6) | −0.0014 (5) | −0.0012 (5) | −0.0031 (4) |
C10 | 0.0259 (7) | 0.0249 (6) | 0.0196 (6) | −0.0001 (5) | −0.0003 (5) | 0.0000 (4) |
C11 | 0.027 (2) | 0.028 (2) | 0.071 (4) | 0.0120 (19) | −0.006 (2) | −0.007 (2) |
C12 | 0.045 (3) | 0.029 (3) | 0.083 (5) | 0.010 (2) | −0.012 (3) | −0.015 (3) |
C11' | 0.032 (3) | 0.029 (3) | 0.073 (6) | 0.008 (2) | −0.005 (3) | −0.016 (3) |
C12' | 0.037 (3) | 0.032 (3) | 0.074 (5) | 0.006 (2) | 0.004 (4) | −0.007 (3) |
O1—C10 | 1.1987 (14) | C7—H7A | 0.9800 |
O2—C10 | 1.3298 (15) | C7—H7B | 0.9800 |
O2—C11' | 1.462 (8) | C7—H7C | 0.9800 |
O2—C11 | 1.472 (6) | C8—C9 | 1.4458 (16) |
N1—N2 | 1.3463 (13) | C8—H8A | 0.9500 |
N1—C1 | 1.4133 (15) | C9—C9i | 1.351 (2) |
N1—C7 | 1.4440 (16) | C9—C10 | 1.5042 (16) |
N2—C8 | 1.2902 (14) | C11—C12 | 1.495 (7) |
C1—C2 | 1.3956 (17) | C11—H11A | 0.9900 |
C1—C6 | 1.3964 (18) | C11—H11B | 0.9900 |
C2—C3 | 1.384 (2) | C12—H12A | 0.9800 |
C2—H2A | 0.9500 | C12—H12B | 0.9800 |
C3—C4 | 1.373 (2) | C12—H12C | 0.9800 |
C3—H3A | 0.9500 | C11'—C12' | 1.511 (8) |
C4—C5 | 1.383 (2) | C11'—H11C | 0.9900 |
C4—H4A | 0.9500 | C11'—H11D | 0.9900 |
C5—C6 | 1.3807 (18) | C12'—H12D | 0.9800 |
C5—H5A | 0.9500 | C12'—H12E | 0.9800 |
C6—H6A | 0.9500 | C12'—H12F | 0.9800 |
C10—O2—C11' | 114.1 (6) | H7A—C7—H7C | 109.5 |
C10—O2—C11 | 117.0 (5) | H7B—C7—H7C | 109.5 |
C11'—O2—C11 | 11.4 (12) | N2—C8—C9 | 116.46 (10) |
N2—N1—C1 | 115.27 (9) | N2—C8—H8A | 121.8 |
N2—N1—C7 | 120.49 (10) | C9—C8—H8A | 121.8 |
C1—N1—C7 | 124.21 (10) | C9i—C9—C8 | 124.51 (14) |
C8—N2—N1 | 121.22 (10) | C9i—C9—C10 | 120.18 (13) |
C2—C1—C6 | 118.71 (11) | C8—C9—C10 | 115.31 (10) |
C2—C1—N1 | 121.31 (11) | O1—C10—O2 | 124.51 (11) |
C6—C1—N1 | 119.94 (10) | O1—C10—C9 | 124.54 (11) |
C3—C2—C1 | 119.92 (13) | O2—C10—C9 | 110.95 (10) |
C3—C2—H2A | 120.0 | O2—C11—C12 | 106.2 (7) |
C1—C2—H2A | 120.0 | O2—C11—H11A | 110.5 |
C4—C3—C2 | 121.30 (13) | C12—C11—H11A | 110.5 |
C4—C3—H3A | 119.3 | O2—C11—H11B | 110.5 |
C2—C3—H3A | 119.3 | C12—C11—H11B | 110.5 |
C3—C4—C5 | 118.93 (13) | H11A—C11—H11B | 108.7 |
C3—C4—H4A | 120.5 | O2—C11'—C12' | 107.1 (10) |
C5—C4—H4A | 120.5 | O2—C11'—H11C | 110.3 |
C6—C5—C4 | 120.90 (14) | C12'—C11'—H11C | 110.3 |
C6—C5—H5A | 119.6 | O2—C11'—H11D | 110.3 |
C4—C5—H5A | 119.6 | C12'—C11'—H11D | 110.3 |
C5—C6—C1 | 120.20 (12) | H11C—C11'—H11D | 108.6 |
C5—C6—H6A | 119.9 | C11'—C12'—H12D | 109.5 |
C1—C6—H6A | 119.9 | C11'—C12'—H12E | 109.5 |
N1—C7—H7A | 109.5 | H12D—C12'—H12E | 109.5 |
N1—C7—H7B | 109.5 | C11'—C12'—H12F | 109.5 |
H7A—C7—H7B | 109.5 | H12D—C12'—H12F | 109.5 |
N1—C7—H7C | 109.5 | H12E—C12'—H12F | 109.5 |
C1—N1—N2—C8 | 177.93 (10) | N2—C8—C9—C9i | 178.85 (14) |
C7—N1—N2—C8 | −4.05 (16) | N2—C8—C9—C10 | −0.46 (15) |
N2—N1—C1—C2 | 169.89 (11) | C11'—O2—C10—O1 | −6.8 (10) |
C7—N1—C1—C2 | −8.05 (18) | C11—O2—C10—O1 | 5.4 (7) |
N2—N1—C1—C6 | −7.57 (15) | C11'—O2—C10—C9 | 173.7 (10) |
C7—N1—C1—C6 | 174.49 (12) | C11—O2—C10—C9 | −174.1 (7) |
C6—C1—C2—C3 | 0.60 (19) | C9i—C9—C10—O1 | −92.64 (17) |
N1—C1—C2—C3 | −176.88 (12) | C8—C9—C10—O1 | 86.70 (14) |
C1—C2—C3—C4 | 1.2 (2) | C9i—C9—C10—O2 | 86.85 (16) |
C2—C3—C4—C5 | −1.4 (2) | C8—C9—C10—O2 | −93.81 (12) |
C3—C4—C5—C6 | −0.2 (2) | C10—O2—C11—C12 | 177.4 (7) |
C4—C5—C6—C1 | 1.9 (2) | C11'—O2—C11—C12 | −104 (6) |
C2—C1—C6—C5 | −2.13 (18) | C10—O2—C11'—C12' | −172.3 (7) |
N1—C1—C6—C5 | 175.39 (11) | C11—O2—C11'—C12' | 81 (5) |
N1—N2—C8—C9 | 179.66 (10) |
Symmetry code: (i) −x, −y+2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4A···O1ii | 0.95 | 2.47 | 3.3749 (19) | 160 |
Symmetry code: (ii) −x+1/2, −y+2, z−1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4A···O1i | 0.95 | 2.47 | 3.3749 (19) | 160 |
Symmetry code: (i) −x+1/2, −y+2, z−1/2. |
Acknowledgements
This work was supported financially by the Key Projects in the National Science & Technology Pillar Program (No. 2012ZX10001007–008-002) and the Doctoral Fund of Innovation of Beijing University of Technology.
References
Aumann, R., Kuckert, E. & Heinen, H. (1987). Chem. Ber. 120, 1293–1296. CrossRef CAS Web of Science Google Scholar
Mandal, S. & Basak, A. (2009). Tetrahedron Lett. 50, 3641–3644. Web of Science CrossRef CAS Google Scholar
Rigaku/MSC (2005). CrystalClear. Rigaku/MSC, The Woodlands, Texas, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Woerlee, E., Bosma, R., Van Eijl, J. & Mol, J. (1984). Appl. Catal. 10, 219–229. CrossRef CAS Web of Science Google Scholar
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