organic compounds
4,4-Dimethyl-1-(3-nitrophenyl)pent-1-en-3-one
aCollege of Chemical and Biological Engineering, Changsha University of Science and Technology, 410004 Changsha, People's Republic of China, and bCollege of Chemistry and Chemical Engineering, Hunan University, 410082 Changsha, People's Republic of China
*Correspondence e-mail: axhu0731@yahoo.com.cn
All the non-hydrogen atoms except one methyl C atom of the title compound, C13H15NO3, lie on a crystallographic mirror plane perpendicular to the b axis. The crystal packing is stabilized by two weak intermolecular C—H⋯O hydrogen bonds.
Related literature
The title compound is an important intermediate in the pesticides industry (Wang et al., 2006). For related structures, see: Anuradha et al. (2008); Butcher et al. (2007); Gong et al. (2008); Harrison et al. (2007); Patil et al. (2007); Sarojini et al. (2007); Thiruvalluvar et al. (2007, 2008); Xia & Hu (2008).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT-Plus (Bruker, 2003); data reduction: SAINT-Plus; 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
10.1107/S1600536809018479/bt2958sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809018479/bt2958Isup2.hkl
3,3-dimethylbutan-2-one(0.0105 mol) was added dropwise into the solution of 3-nitrobenzaldehyde (0.01 mol) and 60 ml ethanol. Then 0.1 g 50% NaOH solution as catalyzer was added and the solution was stirred at 333 K for 5 h (monitored by TLC). Part of the solvent was evaporated and the solution was cooled to 277 K and a precipitate formed. It was filtered and dried. Crystals suitable for X-ray
were obtained by slow evaporation of an ethanol solution at room temperature.H atoms were positioned geometrically (C—H = 0.95 or Cmethyl-H = 0.98 Å) with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(Cmethyl). The methyl group on a general position was allowed to rotate but not to tip.
Data collection: SMART (Bruker, 2001); cell
SAINT-Plus (Bruker, 2003); data reduction: SAINT-Plus (Bruker, 2003); 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).Fig. 1. Molecular structure of the title compound, showing 30% probability displacement ellipsoids. | |
Fig. 2. Packing diagram of the title compound. |
C13H15NO3 | Dx = 1.268 Mg m−3 |
Mr = 233.26 | Melting point: 363 K |
Orthorhombic, Pnma | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2n | Cell parameters from 1920 reflections |
a = 11.3375 (9) Å | θ = 2.3–27.7° |
b = 7.2163 (6) Å | µ = 0.09 mm−1 |
c = 14.9327 (12) Å | T = 173 K |
V = 1221.72 (17) Å3 | Block, colourless |
Z = 4 | 0.48 × 0.36 × 0.15 mm |
F(000) = 496 |
Bruker SMART 1000 CCD diffractometer | 1280 independent reflections |
Radiation source: fine-focus sealed tube | 937 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.030 |
ω scans | θmax = 26.0°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −13→12 |
Tmin = 0.958, Tmax = 0.987 | k = −3→8 |
5485 measured reflections | l = −18→17 |
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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.123 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0591P)2 + 0.3634P] where P = (Fo2 + 2Fc2)/3 |
1280 reflections | (Δ/σ)max = 0.001 |
101 parameters | Δρmax = 0.26 e Å−3 |
0 restraints | Δρmin = −0.16 e Å−3 |
C13H15NO3 | V = 1221.72 (17) Å3 |
Mr = 233.26 | Z = 4 |
Orthorhombic, Pnma | Mo Kα radiation |
a = 11.3375 (9) Å | µ = 0.09 mm−1 |
b = 7.2163 (6) Å | T = 173 K |
c = 14.9327 (12) Å | 0.48 × 0.36 × 0.15 mm |
Bruker SMART 1000 CCD diffractometer | 1280 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 937 reflections with I > 2σ(I) |
Tmin = 0.958, Tmax = 0.987 | Rint = 0.030 |
5485 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.123 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.26 e Å−3 |
1280 reflections | Δρmin = −0.16 e Å−3 |
101 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) | |
C1 | 0.64133 (19) | 0.2500 | 0.12364 (15) | 0.0363 (6) | |
H1 | 0.7249 | 0.2500 | 0.1281 | 0.044* | |
C2 | 0.5825 (2) | 0.2500 | 0.19956 (15) | 0.0371 (6) | |
H2 | 0.4987 | 0.2500 | 0.1983 | 0.045* | |
C3 | 0.6446 (2) | 0.2500 | 0.28774 (15) | 0.0367 (6) | |
C4 | 0.56797 (18) | 0.2500 | 0.37208 (15) | 0.0317 (5) | |
C5 | 0.6474 (2) | 0.2500 | 0.45437 (16) | 0.0392 (6) | |
H5A | 0.5987 | 0.2500 | 0.5086 | 0.059* | |
H5B | 0.6973 | 0.3609 | 0.4537 | 0.059* | 0.50 |
H5C | 0.6973 | 0.1391 | 0.4537 | 0.059* | 0.50 |
C6 | 0.48919 (15) | 0.0777 (3) | 0.37212 (12) | 0.0419 (5) | |
H6A | 0.5385 | −0.0338 | 0.3701 | 0.063* | |
H6B | 0.4374 | 0.0803 | 0.3196 | 0.063* | |
H6C | 0.4412 | 0.0761 | 0.4267 | 0.063* | |
C7 | 0.59173 (19) | 0.2500 | 0.03248 (15) | 0.0310 (5) | |
C8 | 0.66910 (19) | 0.2500 | −0.03967 (15) | 0.0313 (5) | |
H8 | 0.7519 | 0.2500 | −0.0299 | 0.038* | |
C9 | 0.62418 (18) | 0.2500 | −0.12592 (14) | 0.0296 (5) | |
C10 | 0.5051 (2) | 0.2500 | −0.14355 (15) | 0.0348 (6) | |
H10 | 0.4764 | 0.2500 | −0.2033 | 0.042* | |
C11 | 0.42813 (19) | 0.2500 | −0.07129 (16) | 0.0381 (6) | |
H11 | 0.3454 | 0.2500 | −0.0814 | 0.046* | |
C12 | 0.47098 (19) | 0.2500 | 0.01538 (15) | 0.0363 (6) | |
H12 | 0.4171 | 0.2500 | 0.0641 | 0.044* | |
N1 | 0.70773 (17) | 0.2500 | −0.20150 (12) | 0.0359 (5) | |
O1 | 0.66864 (16) | 0.2500 | −0.27777 (11) | 0.0501 (5) | |
O2 | 0.81309 (15) | 0.2500 | −0.18457 (12) | 0.0570 (6) | |
O3 | 0.75145 (14) | 0.2500 | 0.29171 (11) | 0.0559 (6) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0277 (11) | 0.0469 (15) | 0.0344 (13) | 0.000 | −0.0032 (9) | 0.000 |
C2 | 0.0283 (11) | 0.0495 (15) | 0.0337 (13) | 0.000 | −0.0012 (9) | 0.000 |
C3 | 0.0319 (12) | 0.0453 (15) | 0.0328 (13) | 0.000 | −0.0006 (9) | 0.000 |
C4 | 0.0315 (11) | 0.0347 (13) | 0.0290 (12) | 0.000 | −0.0002 (9) | 0.000 |
C5 | 0.0373 (12) | 0.0471 (15) | 0.0333 (13) | 0.000 | −0.0019 (10) | 0.000 |
C6 | 0.0415 (9) | 0.0424 (10) | 0.0418 (10) | −0.0048 (8) | 0.0023 (7) | 0.0001 (8) |
C7 | 0.0304 (11) | 0.0317 (13) | 0.0310 (12) | 0.000 | −0.0015 (9) | 0.000 |
C8 | 0.0265 (10) | 0.0332 (13) | 0.0340 (13) | 0.000 | −0.0030 (9) | 0.000 |
C9 | 0.0312 (11) | 0.0281 (12) | 0.0297 (12) | 0.000 | 0.0014 (9) | 0.000 |
C10 | 0.0352 (12) | 0.0387 (14) | 0.0306 (12) | 0.000 | −0.0043 (9) | 0.000 |
C11 | 0.0279 (11) | 0.0494 (15) | 0.0372 (13) | 0.000 | −0.0014 (9) | 0.000 |
C12 | 0.0321 (12) | 0.0447 (14) | 0.0322 (13) | 0.000 | 0.0006 (9) | 0.000 |
N1 | 0.0355 (11) | 0.0405 (12) | 0.0316 (12) | 0.000 | 0.0020 (8) | 0.000 |
O1 | 0.0501 (10) | 0.0725 (14) | 0.0278 (10) | 0.000 | −0.0010 (8) | 0.000 |
O2 | 0.0322 (9) | 0.0955 (16) | 0.0434 (11) | 0.000 | 0.0058 (8) | 0.000 |
O3 | 0.0300 (10) | 0.1027 (17) | 0.0350 (10) | 0.000 | −0.0011 (7) | 0.000 |
C1—C2 | 1.315 (3) | C6—H6C | 0.9800 |
C1—C7 | 1.473 (3) | C7—C8 | 1.389 (3) |
C1—H1 | 0.9500 | C7—C12 | 1.393 (3) |
C2—C3 | 1.493 (3) | C8—C9 | 1.385 (3) |
C2—H2 | 0.9500 | C8—H8 | 0.9500 |
C3—O3 | 1.213 (3) | C9—C10 | 1.376 (3) |
C3—C4 | 1.530 (3) | C9—N1 | 1.474 (3) |
C4—C5 | 1.523 (3) | C10—C11 | 1.388 (3) |
C4—C6 | 1.531 (2) | C10—H10 | 0.9500 |
C4—C6i | 1.531 (2) | C11—C12 | 1.382 (3) |
C5—H5A | 0.9800 | C11—H11 | 0.9500 |
C5—H5B | 0.9800 | C12—H12 | 0.9500 |
C5—H5C | 0.9800 | N1—O2 | 1.221 (2) |
C6—H6A | 0.9800 | N1—O1 | 1.222 (2) |
C6—H6B | 0.9800 | ||
C2—C1—C7 | 127.1 (2) | C4—C6—H6C | 109.5 |
C2—C1—H1 | 116.5 | H6A—C6—H6C | 109.5 |
C7—C1—H1 | 116.5 | H6B—C6—H6C | 109.5 |
C1—C2—C3 | 121.4 (2) | C8—C7—C12 | 118.6 (2) |
C1—C2—H2 | 119.3 | C8—C7—C1 | 118.40 (19) |
C3—C2—H2 | 119.3 | C12—C7—C1 | 123.0 (2) |
O3—C3—C2 | 120.9 (2) | C9—C8—C7 | 119.27 (19) |
O3—C3—C4 | 121.8 (2) | C9—C8—H8 | 120.4 |
C2—C3—C4 | 117.30 (19) | C7—C8—H8 | 120.4 |
C5—C4—C3 | 109.19 (18) | C10—C9—C8 | 122.6 (2) |
C5—C4—C6 | 110.15 (12) | C10—C9—N1 | 118.97 (19) |
C3—C4—C6 | 109.36 (12) | C8—C9—N1 | 118.42 (18) |
C5—C4—C6i | 110.15 (12) | C9—C10—C11 | 117.9 (2) |
C3—C4—C6i | 109.36 (12) | C9—C10—H10 | 121.0 |
C6—C4—C6i | 108.63 (18) | C11—C10—H10 | 121.0 |
C4—C5—H5A | 109.5 | C12—C11—C10 | 120.5 (2) |
C4—C5—H5B | 109.5 | C12—C11—H11 | 119.8 |
H5A—C5—H5B | 109.5 | C10—C11—H11 | 119.8 |
C4—C5—H5C | 109.5 | C11—C12—C7 | 121.1 (2) |
H5A—C5—H5C | 109.5 | C11—C12—H12 | 119.4 |
H5B—C5—H5C | 109.5 | C7—C12—H12 | 119.4 |
C4—C6—H6A | 109.5 | O2—N1—O1 | 123.22 (19) |
C4—C6—H6B | 109.5 | O2—N1—C9 | 118.06 (18) |
H6A—C6—H6B | 109.5 | O1—N1—C9 | 118.73 (18) |
C7—C1—C2—C3 | 180.0 | C7—C8—C9—C10 | 0.0 |
C1—C2—C3—O3 | 0.0 | C7—C8—C9—N1 | 180.0 |
C1—C2—C3—C4 | 180.0 | C8—C9—C10—C11 | 0.0 |
O3—C3—C4—C5 | 0.0 | N1—C9—C10—C11 | 180.0 |
C2—C3—C4—C5 | 180.0 | C9—C10—C11—C12 | 0.0 |
O3—C3—C4—C6 | −120.58 (12) | C10—C11—C12—C7 | 0.0 |
C2—C3—C4—C6 | 59.42 (12) | C8—C7—C12—C11 | 0.0 |
O3—C3—C4—C6i | 120.58 (12) | C1—C7—C12—C11 | 180.0 |
C2—C3—C4—C6i | −59.42 (12) | C10—C9—N1—O2 | 180.0 |
C2—C1—C7—C8 | 180.0 | C8—C9—N1—O2 | 0.0 |
C2—C1—C7—C12 | 0.0 | C10—C9—N1—O1 | 0.0 |
C12—C7—C8—C9 | 0.0 | C8—C9—N1—O1 | 180.0 |
C1—C7—C8—C9 | 180.0 |
Symmetry code: (i) x, −y+1/2, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6A···O2ii | 0.98 | 2.44 | 3.367 (2) | 158 |
C10—H10···O2iii | 0.95 | 2.50 | 3.366 (3) | 152 |
Symmetry codes: (ii) −x+3/2, −y, z+1/2; (iii) x−1/2, −y+1/2, −z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C13H15NO3 |
Mr | 233.26 |
Crystal system, space group | Orthorhombic, Pnma |
Temperature (K) | 173 |
a, b, c (Å) | 11.3375 (9), 7.2163 (6), 14.9327 (12) |
V (Å3) | 1221.72 (17) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.48 × 0.36 × 0.15 |
Data collection | |
Diffractometer | Bruker SMART 1000 CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.958, 0.987 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5485, 1280, 937 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.123, 1.06 |
No. of reflections | 1280 |
No. of parameters | 101 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.26, −0.16 |
Computer programs: SMART (Bruker, 2001), SAINT-Plus (Bruker, 2003), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6A···O2i | 0.9800 | 2.4400 | 3.367 (2) | 158.00 |
C10—H10···O2ii | 0.9500 | 2.5000 | 3.366 (3) | 152.00 |
Symmetry codes: (i) −x+3/2, −y, z+1/2; (ii) x−1/2, −y+1/2, −z−1/2. |
Acknowledgements
The authors express their thanks to the National Key Technology R&D Program (No. 2006BAE01A01-4).
References
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The title compound, 1-(3-nitrophenyl)-4,4-dimethylpentan-3-one, is a very important intermediate in the pesticides industry (Wang et al., 2006). Continuing our work (Xia & Hu, 2008), we report the synthesis and crystal structure of the title compound. Several crystal structures containing phenylprop-2-en-1-one moiety have been recently published (Anuradha et al., 2008; Butcher et al., 2007; Gong et al., 2008; Harrison et al., 2007; Patil et al., 2007; Sarojini et al., 2007; Thiruvalluvar et al., 2007, 2008; Xia & Hu, 2008). In the title compound (Fig. 1), the carbonyl, ethenyl and nitro groups are coplanar with the benzene ring. The bond lengths and bond angles in (I) are in excellent agreement with the corresponding bond lengths and angles reported in the related compounds given above. The crystal packing is illustrated in Fig. 2.