organic compounds
(E)-(4-Bromobenzylidene)amino cyclopropanecarboxylate
aKey Laboratory of Pesticide Chemistry and Applications, Ministry of Agriculture, Beijing, People's Republic of China, and bCollege of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
*Correspondence e-mail: xhliu@zjut.edu.cn
In the title compound, C11H10BrNO2, the dihedral angle between the benzene and cyclopropane ring planes is 49.4 (3)°. The C—C—N—O torsion angle is −175.1 (3)°, which indicates that the C=N double bond is in the E configuration.
Related literature
For details of the synthesis, see: Liu et al. (2011a). For the KARI (ketol–acid reductoisomerase) activity of related compounds, see: Liu et al. (2009a,b, 2010, 2011b,c,d). For related structures, see: Liu et al. (2011a,c).
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
10.1107/S1600536812002048/ds2156sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812002048/ds2156Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812002048/ds2156Isup3.cml
To a solution of 4-bromobenzaldehyde oxime (7.50 mmol in 25 ml THF) and 7.5 mmol Et3N, was added the cyclopropanecarbonyl chloride. Then the mixture was vigorously stirred at room temperature for overnight. The corresponding product precipitated immediately. Compound was dissolved in hot alcohol and the resulting solution was allowed to stand in air at room temperature to give single crystal.
All the H atoms were positioned geometrically (C—H = 0.93–0.97 Å) and refined as riding with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(methyl 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).Fig. 1. The molecular structure of (I). Displacement ellipsoids are drawn at the 50% probability level and H atoms are shown as small spheres of arbitrary radii. | |
Fig. 2. The crystal packing for (I). |
C11H10BrNO2 | F(000) = 536 |
Mr = 268.11 | Dx = 1.683 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2894 reflections |
a = 13.209 (3) Å | θ = 2.2–27.5° |
b = 13.789 (3) Å | µ = 3.86 mm−1 |
c = 5.8714 (12) Å | T = 113 K |
β = 98.27 (3)° | Prism, colorless |
V = 1058.3 (4) Å3 | 0.16 × 0.14 × 0.12 mm |
Z = 4 |
Rigaku Saturn diffractometer | 1862 independent reflections |
Radiation source: rotating anode | 1320 reflections with I > 2σ(I) |
Confocal monochromator | Rint = 0.096 |
ω scans | θmax = 25.0°, θmin = 2.2° |
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005) | h = −15→14 |
Tmin = 0.577, Tmax = 0.654 | k = −15→16 |
5989 measured reflections | l = −6→5 |
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) = 0.082 | H-atom parameters constrained |
S = 0.96 | w = 1/[σ2(Fo2) + (0.0236P)2] where P = (Fo2 + 2Fc2)/3 |
1862 reflections | (Δ/σ)max < 0.001 |
136 parameters | Δρmax = 0.67 e Å−3 |
0 restraints | Δρmin = −0.74 e Å−3 |
C11H10BrNO2 | V = 1058.3 (4) Å3 |
Mr = 268.11 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 13.209 (3) Å | µ = 3.86 mm−1 |
b = 13.789 (3) Å | T = 113 K |
c = 5.8714 (12) Å | 0.16 × 0.14 × 0.12 mm |
β = 98.27 (3)° |
Rigaku Saturn diffractometer | 1862 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2005) | 1320 reflections with I > 2σ(I) |
Tmin = 0.577, Tmax = 0.654 | Rint = 0.096 |
5989 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 0 restraints |
wR(F2) = 0.082 | H-atom parameters constrained |
S = 0.96 | Δρmax = 0.67 e Å−3 |
1862 reflections | Δρmin = −0.74 e Å−3 |
136 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 | ||
Br1 | 0.63851 (3) | 0.63645 (3) | 1.06308 (6) | 0.02820 (17) | |
O1 | 1.21657 (17) | 0.58865 (18) | 0.7082 (4) | 0.0204 (6) | |
O2 | 1.20566 (19) | 0.68074 (19) | 0.3851 (4) | 0.0246 (6) | |
N1 | 1.1064 (2) | 0.5958 (2) | 0.6861 (5) | 0.0207 (7) | |
C1 | 0.9529 (3) | 0.6535 (2) | 1.1289 (6) | 0.0183 (9) | |
H1 | 1.0055 | 0.6740 | 1.2410 | 0.022* | |
C2 | 0.8530 (3) | 0.6600 (2) | 1.1709 (6) | 0.0206 (9) | |
H2 | 0.8381 | 0.6849 | 1.3094 | 0.025* | |
C3 | 0.7756 (3) | 0.6286 (2) | 1.0033 (6) | 0.0181 (9) | |
C4 | 0.7967 (3) | 0.5906 (3) | 0.7961 (6) | 0.0167 (8) | |
H4 | 0.7441 | 0.5693 | 0.6849 | 0.020* | |
C5 | 0.8972 (3) | 0.5849 (3) | 0.7583 (6) | 0.0177 (8) | |
H5 | 0.9122 | 0.5592 | 0.6205 | 0.021* | |
C6 | 0.9762 (3) | 0.6170 (2) | 0.9223 (6) | 0.0160 (8) | |
C7 | 1.0830 (3) | 0.6136 (2) | 0.8868 (6) | 0.0164 (8) | |
H7 | 1.1344 | 0.6243 | 1.0100 | 0.020* | |
C8 | 1.2549 (3) | 0.6312 (3) | 0.5280 (6) | 0.0187 (9) | |
C9 | 1.3629 (3) | 0.6058 (3) | 0.5407 (6) | 0.0215 (9) | |
H9 | 1.3922 | 0.5636 | 0.6676 | 0.026* | |
C10 | 1.4024 (3) | 0.5931 (3) | 0.3108 (6) | 0.0291 (10) | |
H10A | 1.4536 | 0.5436 | 0.3005 | 0.035* | |
H10B | 1.3543 | 0.6027 | 0.1714 | 0.035* | |
C11 | 1.4328 (3) | 0.6793 (3) | 0.4557 (6) | 0.0287 (10) | |
H11A | 1.4036 | 0.7414 | 0.4038 | 0.034* | |
H11B | 1.5028 | 0.6823 | 0.5328 | 0.034* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0195 (3) | 0.0277 (3) | 0.0407 (3) | 0.00510 (17) | 0.0154 (2) | 0.00313 (19) |
O1 | 0.0144 (14) | 0.0227 (16) | 0.0259 (14) | 0.0002 (12) | 0.0085 (11) | 0.0042 (12) |
O2 | 0.0247 (16) | 0.0239 (16) | 0.0252 (14) | 0.0030 (13) | 0.0040 (12) | 0.0030 (12) |
N1 | 0.0111 (17) | 0.026 (2) | 0.0274 (17) | 0.0028 (14) | 0.0087 (14) | −0.0021 (15) |
C1 | 0.022 (2) | 0.012 (2) | 0.0204 (19) | 0.0001 (16) | 0.0028 (16) | 0.0003 (15) |
C2 | 0.026 (2) | 0.015 (2) | 0.0227 (19) | 0.0055 (17) | 0.0118 (17) | −0.0024 (16) |
C3 | 0.019 (2) | 0.011 (2) | 0.026 (2) | 0.0020 (16) | 0.0096 (17) | 0.0032 (16) |
C4 | 0.0088 (19) | 0.013 (2) | 0.028 (2) | 0.0003 (16) | 0.0012 (15) | −0.0015 (17) |
C5 | 0.021 (2) | 0.016 (2) | 0.0172 (18) | 0.0015 (17) | 0.0063 (16) | 0.0006 (16) |
C6 | 0.017 (2) | 0.012 (2) | 0.0206 (19) | 0.0013 (15) | 0.0054 (16) | 0.0020 (15) |
C7 | 0.012 (2) | 0.012 (2) | 0.025 (2) | 0.0015 (15) | 0.0013 (16) | 0.0026 (15) |
C8 | 0.020 (2) | 0.016 (2) | 0.0197 (19) | −0.0078 (16) | 0.0029 (17) | −0.0065 (17) |
C9 | 0.017 (2) | 0.024 (2) | 0.0259 (19) | 0.0019 (18) | 0.0098 (16) | 0.0054 (17) |
C10 | 0.023 (2) | 0.035 (3) | 0.032 (2) | 0.001 (2) | 0.0157 (18) | −0.004 (2) |
C11 | 0.020 (2) | 0.036 (3) | 0.032 (2) | −0.009 (2) | 0.0099 (18) | 0.002 (2) |
Br1—C3 | 1.896 (4) | C5—C6 | 1.386 (5) |
O1—C8 | 1.369 (4) | C5—H5 | 0.9300 |
O1—N1 | 1.445 (3) | C6—C7 | 1.456 (5) |
O2—C8 | 1.199 (4) | C7—H7 | 0.9300 |
N1—C7 | 1.285 (4) | C8—C9 | 1.460 (5) |
C1—C2 | 1.379 (5) | C9—C11 | 1.504 (5) |
C1—C6 | 1.389 (5) | C9—C10 | 1.525 (5) |
C1—H1 | 0.9300 | C9—H9 | 0.9800 |
C2—C3 | 1.383 (5) | C10—C11 | 1.483 (5) |
C2—H2 | 0.9300 | C10—H10A | 0.9700 |
C3—C4 | 1.390 (5) | C10—H10B | 0.9700 |
C4—C5 | 1.379 (4) | C11—H11A | 0.9700 |
C4—H4 | 0.9300 | C11—H11B | 0.9700 |
C8—O1—N1 | 112.4 (3) | C6—C7—H7 | 119.9 |
C7—N1—O1 | 107.6 (3) | O2—C8—O1 | 124.1 (3) |
C2—C1—C6 | 121.2 (3) | O2—C8—C9 | 126.9 (3) |
C2—C1—H1 | 119.4 | O1—C8—C9 | 109.0 (3) |
C6—C1—H1 | 119.4 | C8—C9—C11 | 117.6 (3) |
C1—C2—C3 | 118.8 (3) | C8—C9—C10 | 116.0 (3) |
C1—C2—H2 | 120.6 | C11—C9—C10 | 58.6 (2) |
C3—C2—H2 | 120.6 | C8—C9—H9 | 117.2 |
C2—C3—C4 | 121.3 (3) | C11—C9—H9 | 117.2 |
C2—C3—Br1 | 118.6 (3) | C10—C9—H9 | 117.2 |
C4—C3—Br1 | 120.1 (3) | C11—C10—C9 | 60.0 (2) |
C5—C4—C3 | 118.8 (3) | C11—C10—H10A | 117.8 |
C5—C4—H4 | 120.6 | C9—C10—H10A | 117.8 |
C3—C4—H4 | 120.6 | C11—C10—H10B | 117.8 |
C4—C5—C6 | 121.0 (3) | C9—C10—H10B | 117.8 |
C4—C5—H5 | 119.5 | H10A—C10—H10B | 114.9 |
C6—C5—H5 | 119.5 | C10—C11—C9 | 61.4 (2) |
C5—C6—C1 | 118.9 (3) | C10—C11—H11A | 117.6 |
C5—C6—C7 | 122.6 (3) | C9—C11—H11A | 117.6 |
C1—C6—C7 | 118.5 (3) | C10—C11—H11B | 117.6 |
N1—C7—C6 | 120.2 (3) | C9—C11—H11B | 117.6 |
N1—C7—H7 | 119.9 | H11A—C11—H11B | 114.7 |
C8—O1—N1—C7 | −140.2 (3) | O1—N1—C7—C6 | −175.1 (3) |
C6—C1—C2—C3 | 0.5 (5) | C5—C6—C7—N1 | 11.9 (5) |
C1—C2—C3—C4 | 0.4 (5) | C1—C6—C7—N1 | −168.3 (3) |
C1—C2—C3—Br1 | 179.4 (3) | N1—O1—C8—O2 | 10.1 (5) |
C2—C3—C4—C5 | −0.4 (5) | N1—O1—C8—C9 | −169.7 (3) |
Br1—C3—C4—C5 | −179.4 (3) | O2—C8—C9—C11 | 32.6 (5) |
C3—C4—C5—C6 | −0.4 (5) | O1—C8—C9—C11 | −147.6 (3) |
C4—C5—C6—C1 | 1.2 (5) | O2—C8—C9—C10 | −33.9 (5) |
C4—C5—C6—C7 | −179.0 (3) | O1—C8—C9—C10 | 145.9 (3) |
C2—C1—C6—C5 | −1.2 (5) | C8—C9—C10—C11 | 107.8 (4) |
C2—C1—C6—C7 | 179.0 (3) | C8—C9—C11—C10 | −105.1 (4) |
Experimental details
Crystal data | |
Chemical formula | C11H10BrNO2 |
Mr | 268.11 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 113 |
a, b, c (Å) | 13.209 (3), 13.789 (3), 5.8714 (12) |
β (°) | 98.27 (3) |
V (Å3) | 1058.3 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 3.86 |
Crystal size (mm) | 0.16 × 0.14 × 0.12 |
Data collection | |
Diffractometer | Rigaku Saturn diffractometer |
Absorption correction | Multi-scan (CrystalClear; Rigaku/MSC, 2005) |
Tmin, Tmax | 0.577, 0.654 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5989, 1862, 1320 |
Rint | 0.096 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.082, 0.96 |
No. of reflections | 1862 |
No. of parameters | 136 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.67, −0.74 |
Computer programs: CrystalClear (Rigaku/MSC, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
This work was supported financially by the Scientific Research Fund of Zhejiang Education Department (Y201018479).
References
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