organic compounds
Methyl 4-bromo-3-hydroxybenzoate
aGuangdong University of Technology, Faculty of Chemical Engineering and Light Industry, Guangzhou 510006, Guangdong, People's Republic of China
*Correspondence e-mail: corihhr@yahoo.cn
In the title compound, C8H7BrO3, the methoxycarbonyl group is twisted at a dihedral angle of 8.06 (4)° with respect to the benzene ring. In the crystal, molecules are connected by O—H⋯O hydrogen bonds into helical chains running along the b axis.
Related literature
For applications of methyl 3-hydroxybenzoate derivatives in the synthesis of various broad-spectrum antimicrobials, see: Zhong et al. (2001). For the synthesis of the title compound, see: Nie et al. (2005).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1999); cell SAINT-Plus (Bruker, 1999); 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
https://doi.org/10.1107/S1600536810051445/xu5110sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810051445/xu5110Isup2.hkl
The title compound was synthesized as previously reported (Nie et al., 2005). The electrospray ionization
(ESI-MS) showed an intense peak of molecular ions at m/z 230. Single crystals suitable for X-ray diffraction were obtained from methanol solution in room temperature.H atoms were placed in calculated positions with O—H = 0.82 and C—H = 0.93-0.96 Å, and refined in riding mode with Uiso(H) = 1.5Ueq(O,C) for hydroxy H and methyl H atoms and 1.2Ueq(C) for the others.
The methyl 3-hydroxybenzoate derivatives as important starting materials have been applied to synthesis various broad-spectrum antimicrobials (Nie et al., 2005) and design cryptophane derivatives in self-assembling of supermolecular chemistry (Zhong et al., 2001). Here we report the structure of the title compound (Fig. 1).
In the
of the title compound, there are linked by an intermolecular O-H···O hydrogen bond between hydroxyl and carbonyl groups forming an infinite helical chain along the b axis (Table 1 and Fig. 2). And no significant interaction is observed between the chains.For applications of methyl 3-hydroxybenzoate derivatives in the synthesis of various broad-spectrum antimicrobials, see: Zhong et al. (2001). For the synthesis of the title compound, see: Nie et al. (2005).
Data collection: SMART (Bruker, 1999); cell
SAINT-Plus (Bruker, 1999); data reduction: SAINT-Plus (Bruker, 1999; 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).C8H7BrO3 | F(000) = 456 |
Mr = 231.05 | Dx = 1.828 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 1334 reflections |
a = 10.812 (4) Å | θ = 2.3–24.2° |
b = 6.317 (2) Å | µ = 4.86 mm−1 |
c = 12.490 (5) Å | T = 293 K |
β = 100.164 (6)° | Plate, colorless |
V = 839.7 (5) Å3 | 0.27 × 0.24 × 0.16 mm |
Z = 4 |
Bruker SMART CCD 1000 diffractometer | 1831 independent reflections |
Radiation source: fine-focus sealed tube | 1129 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.042 |
Detector resolution: 10.0 pixels mm-1 | θmax = 27.2°, θmin = 1.9° |
φ and ω scans | h = −13→13 |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | k = −8→3 |
Tmin = 0.354, Tmax = 0.511 | l = −15→16 |
4755 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)] = 0.058 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.172 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.0685P)2 + 2.8188P] where P = (Fo2 + 2Fc2)/3 |
1831 reflections | (Δ/σ)max < 0.001 |
111 parameters | Δρmax = 0.46 e Å−3 |
0 restraints | Δρmin = −0.55 e Å−3 |
C8H7BrO3 | V = 839.7 (5) Å3 |
Mr = 231.05 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 10.812 (4) Å | µ = 4.86 mm−1 |
b = 6.317 (2) Å | T = 293 K |
c = 12.490 (5) Å | 0.27 × 0.24 × 0.16 mm |
β = 100.164 (6)° |
Bruker SMART CCD 1000 diffractometer | 1831 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1129 reflections with I > 2σ(I) |
Tmin = 0.354, Tmax = 0.511 | Rint = 0.042 |
4755 measured reflections |
R[F2 > 2σ(F2)] = 0.058 | 0 restraints |
wR(F2) = 0.172 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.46 e Å−3 |
1831 reflections | Δρmin = −0.55 e Å−3 |
111 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | 0.92070 (8) | 1.12616 (14) | 0.78430 (7) | 0.0617 (4) | |
C1 | 0.8397 (6) | 0.8935 (11) | 0.8349 (5) | 0.0392 (15) | |
C2 | 0.7180 (6) | 0.8391 (11) | 0.7823 (5) | 0.0382 (15) | |
C3 | 0.6621 (5) | 0.6667 (10) | 0.8204 (5) | 0.0357 (15) | |
H3 | 0.5809 | 0.6296 | 0.7877 | 0.043* | |
C4 | 0.7238 (6) | 0.5454 (10) | 0.9072 (5) | 0.0331 (14) | |
C5 | 0.8426 (6) | 0.6045 (11) | 0.9592 (5) | 0.0425 (16) | |
H5 | 0.8837 | 0.5274 | 1.0183 | 0.051* | |
C6 | 0.8996 (6) | 0.7797 (12) | 0.9223 (6) | 0.0449 (17) | |
H6 | 0.9792 | 0.8206 | 0.9571 | 0.054* | |
C7 | 0.6617 (6) | 0.3570 (10) | 0.9440 (5) | 0.0396 (15) | |
C8 | 0.6834 (8) | 0.0661 (13) | 1.0640 (6) | 0.057 (2) | |
H8A | 0.6194 | 0.1164 | 1.1020 | 0.086* | |
H8B | 0.7478 | −0.0043 | 1.1142 | 0.086* | |
H8C | 0.6471 | −0.0314 | 1.0082 | 0.086* | |
O1 | 0.6635 (5) | 0.9620 (9) | 0.6988 (4) | 0.0565 (14) | |
H1 | 0.5947 | 0.9128 | 0.6724 | 0.085* | |
O2 | 0.5536 (5) | 0.3093 (9) | 0.9112 (4) | 0.0589 (15) | |
O3 | 0.7379 (4) | 0.2443 (7) | 1.0147 (4) | 0.0432 (11) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0603 (5) | 0.0604 (6) | 0.0619 (5) | −0.0167 (4) | 0.0043 (4) | 0.0095 (4) |
C1 | 0.037 (3) | 0.039 (4) | 0.041 (3) | −0.006 (3) | 0.006 (3) | −0.002 (3) |
C2 | 0.037 (3) | 0.043 (4) | 0.033 (3) | 0.003 (3) | 0.003 (3) | −0.001 (3) |
C3 | 0.026 (3) | 0.043 (4) | 0.037 (3) | −0.004 (3) | −0.001 (2) | −0.006 (3) |
C4 | 0.033 (3) | 0.035 (3) | 0.030 (3) | −0.002 (3) | 0.001 (3) | −0.003 (3) |
C5 | 0.041 (4) | 0.038 (4) | 0.044 (4) | 0.004 (3) | −0.008 (3) | −0.004 (3) |
C6 | 0.037 (4) | 0.043 (4) | 0.050 (4) | −0.009 (3) | −0.003 (3) | −0.005 (3) |
C7 | 0.045 (4) | 0.036 (4) | 0.037 (3) | −0.002 (3) | 0.006 (3) | −0.005 (3) |
C8 | 0.072 (5) | 0.051 (5) | 0.049 (4) | 0.003 (4) | 0.009 (4) | 0.006 (4) |
O1 | 0.050 (3) | 0.057 (3) | 0.055 (3) | −0.008 (3) | −0.011 (2) | 0.022 (3) |
O2 | 0.040 (3) | 0.057 (3) | 0.072 (3) | −0.014 (2) | −0.011 (2) | 0.014 (3) |
O3 | 0.044 (3) | 0.037 (3) | 0.044 (3) | −0.005 (2) | −0.003 (2) | 0.009 (2) |
Br1—C1 | 1.876 (7) | C5—H5 | 0.9300 |
C1—C6 | 1.370 (10) | C6—H6 | 0.9300 |
C1—C2 | 1.406 (9) | C7—O2 | 1.206 (8) |
C2—O1 | 1.349 (8) | C7—O3 | 1.307 (8) |
C2—C3 | 1.371 (9) | C8—O3 | 1.457 (9) |
C3—C4 | 1.397 (9) | C8—H8A | 0.9600 |
C3—H3 | 0.9300 | C8—H8B | 0.9600 |
C4—C5 | 1.384 (9) | C8—H8C | 0.9600 |
C4—C7 | 1.480 (9) | O1—H1 | 0.8200 |
C5—C6 | 1.385 (10) | ||
C6—C1—C2 | 121.0 (6) | C1—C6—C5 | 120.6 (6) |
C6—C1—Br1 | 119.8 (5) | C1—C6—H6 | 119.7 |
C2—C1—Br1 | 119.2 (5) | C5—C6—H6 | 119.7 |
O1—C2—C3 | 124.5 (6) | O2—C7—O3 | 123.5 (6) |
O1—C2—C1 | 117.7 (6) | O2—C7—C4 | 124.1 (6) |
C3—C2—C1 | 117.7 (6) | O3—C7—C4 | 112.4 (5) |
C2—C3—C4 | 121.7 (6) | O3—C8—H8A | 109.5 |
C2—C3—H3 | 119.1 | O3—C8—H8B | 109.5 |
C4—C3—H3 | 119.1 | H8A—C8—H8B | 109.5 |
C5—C4—C3 | 119.5 (6) | O3—C8—H8C | 109.5 |
C5—C4—C7 | 120.4 (6) | H8A—C8—H8C | 109.5 |
C3—C4—C7 | 120.1 (5) | H8B—C8—H8C | 109.5 |
C4—C5—C6 | 119.3 (6) | C2—O1—H1 | 109.5 |
C4—C5—H5 | 120.3 | C7—O3—C8 | 116.9 (6) |
C6—C5—H5 | 120.3 | ||
C6—C1—C2—O1 | 178.1 (6) | C2—C1—C6—C5 | 1.7 (11) |
Br1—C1—C2—O1 | −1.8 (8) | Br1—C1—C6—C5 | −178.5 (5) |
C6—C1—C2—C3 | −0.9 (10) | C4—C5—C6—C1 | −0.3 (10) |
Br1—C1—C2—C3 | 179.2 (5) | C5—C4—C7—O2 | 171.3 (7) |
O1—C2—C3—C4 | 179.8 (6) | C3—C4—C7—O2 | −7.8 (10) |
C1—C2—C3—C4 | −1.2 (9) | C5—C4—C7—O3 | −10.2 (9) |
C2—C3—C4—C5 | 2.6 (10) | C3—C4—C7—O3 | 170.7 (6) |
C2—C3—C4—C7 | −178.3 (6) | O2—C7—O3—C8 | −7.1 (10) |
C3—C4—C5—C6 | −1.8 (10) | C4—C7—O3—C8 | 174.4 (5) |
C7—C4—C5—C6 | 179.1 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.82 | 1.87 | 2.681 (7) | 170 |
Symmetry code: (i) −x+1, y+1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C8H7BrO3 |
Mr | 231.05 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 10.812 (4), 6.317 (2), 12.490 (5) |
β (°) | 100.164 (6) |
V (Å3) | 839.7 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 4.86 |
Crystal size (mm) | 0.27 × 0.24 × 0.16 |
Data collection | |
Diffractometer | Bruker SMART CCD 1000 |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.354, 0.511 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4755, 1831, 1129 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.643 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.058, 0.172, 1.08 |
No. of reflections | 1831 |
No. of parameters | 111 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.46, −0.55 |
Computer programs: SMART (Bruker, 1999), SAINT-Plus (Bruker, 1999), SAINT-Plus (Bruker, 1999, SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.82 | 1.87 | 2.681 (7) | 170 |
Symmetry code: (i) −x+1, y+1/2, −z+3/2. |
Acknowledgements
This work was funded by the 211 project of Guangdong Province.
References
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Nie, Z., Perretta, C., Lu, J., Su, Y., Margosiak, S., Gajiwala, K. S., Cortez, J., Nikulin, V., Yager, K. M., Appelt, K. & Chu, S. (2005). J. Med. Chem. 48, 1596–1609. Web of Science CrossRef PubMed CAS Google Scholar
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The methyl 3-hydroxybenzoate derivatives as important starting materials have been applied to synthesis various broad-spectrum antimicrobials (Nie et al., 2005) and design cryptophane derivatives in self-assembling of supermolecular chemistry (Zhong et al., 2001). Here we report the structure of the title compound (Fig. 1).
In the crystal structure of the title compound, there are linked by an intermolecular O-H···O hydrogen bond between hydroxyl and carbonyl groups forming an infinite helical chain along the b axis (Table 1 and Fig. 2). And no significant interaction is observed between the chains.