organic compounds
3-Acetyl-4-hydroxyphenyl acrylate
aDepartment of Physics, Queen Mary's College (Autonomous), Chennai 600 004, India, and bDepartment of Inorganic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: guqmc@yahoo.com
In the title compound, C12H12O4, the hydroxy O and the C and O atoms of the acetyl group are almost coplanar [maximum deviation = 0.0356 (1) Å] with the benzene ring. The dihedral angle between the benzene ring and the plane through the non-H atoms of the methacryloyloxy group is 86.1 (1)°. In the molecules are linked by two C—H⋯O hydrogen bonds, forming dimers with graph-set descriptor R22(16). A strong intramolecular O—H⋯O hydrogen bond is also observed.
Related literature
For reference bond-length data, see: Allen et al. (1987). For graph-set notation, see Bernstein et al. (1995). For the biological properties of acetophenone derivatives, see Favier et al. (1998); Sala et al. (2001); Suksamrarn et al. (1997). Acetophenones are useful synthons for the preparation of a wide variety of polyphenolic compounds such as and flavones, see Parmar et al. (1996).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536809032176/wn2339sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809032176/wn2339Isup2.hkl
2,5-Dihydroxyacetophenone (26.31 mmol, 4.0 g), K2CO3 (31.55 mmol, 4.36 g) and 150 ml of dry acetone were taken up in a 250 ml round bottomed flask and the temperature was maintained at 0 °C. A solution of methacryloyl chloride (26.80 mmol, 2.8 ml) in 20 ml of dry acetone was then added dropwise to the mixture, with constant stirring for 30 min. After the addition was complete the reaction mixture was stirred for another 6 h. The salt formed during the reaction was filtered and the filtrate was washed with water and dried over anhydrous MgSO4. The filtrate was concentrated under reduced pressure and the crude product was purified by
(silica) using a hexane/ethyl acetate mixture (90:10). The product was collected and recrystallized from chloroform to give a crystalline white solid. Yield: 4.5 g (77%); Mp: 65–66 °C.The H atoms attached to C12 were located in a difference map and refined freely. Other H atoms were positioned geometrically and were treated as riding on their parent atoms, with aromatic C—H distances of 0.93 Å, methyl C—H distances of 0.96 Å; Uiso(H) = 1.5Ueq(C) for methyl H and 1.2Ueq(C) for aromatic H atoms. O—H = 0.82 Å and the isotropic dispacement parameter was refined. The methylene group was free to rotate, but not to tip.
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).C12H12O4 | F(000) = 464 |
Mr = 220.22 | Dx = 1.315 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3437 reflections |
a = 8.8335 (3) Å | θ = 2.5–30.6° |
b = 11.9320 (3) Å | µ = 0.10 mm−1 |
c = 11.3295 (3) Å | T = 293 K |
β = 111.277 (2)° | Block, colourless |
V = 1112.75 (6) Å3 | 0.25 × 0.17 × 0.17 mm |
Z = 4 |
Bruker Kappa APEXII CCD diffractometer | 3437 independent reflections |
Radiation source: fine-focus sealed tube | 2080 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
ω and ϕ scans | θmax = 30.6°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −12→12 |
Tmin = 0.976, Tmax = 0.983 | k = −17→12 |
14184 measured reflections | l = −15→16 |
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)] = 0.048 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.161 | w = 1/[σ2(Fo2) + (0.0732P)2 + 0.1247P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max < 0.001 |
3437 reflections | Δρmax = 0.21 e Å−3 |
155 parameters | Δρmin = −0.17 e Å−3 |
0 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: 0.007 (4) |
C12H12O4 | V = 1112.75 (6) Å3 |
Mr = 220.22 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.8335 (3) Å | µ = 0.10 mm−1 |
b = 11.9320 (3) Å | T = 293 K |
c = 11.3295 (3) Å | 0.25 × 0.17 × 0.17 mm |
β = 111.277 (2)° |
Bruker Kappa APEXII CCD diffractometer | 3437 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 2080 reflections with I > 2σ(I) |
Tmin = 0.976, Tmax = 0.983 | Rint = 0.026 |
14184 measured reflections |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.161 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.21 e Å−3 |
3437 reflections | Δρmin = −0.17 e Å−3 |
155 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 | ||
C1 | 0.79745 (16) | 0.06020 (12) | 1.12189 (13) | 0.0535 (3) | |
C2 | 0.82796 (18) | −0.01422 (13) | 1.03977 (15) | 0.0636 (4) | |
H2A | 0.9148 | −0.0638 | 1.0702 | 0.076* | |
C3 | 0.73129 (18) | −0.01579 (13) | 0.91355 (14) | 0.0610 (4) | |
H3A | 0.7534 | −0.0653 | 0.8584 | 0.073* | |
C4 | 0.60112 (16) | 0.05669 (12) | 0.86937 (12) | 0.0508 (3) | |
C5 | 0.56645 (15) | 0.12991 (10) | 0.94908 (12) | 0.0468 (3) | |
H5A | 0.4769 | 0.1771 | 0.9177 | 0.056* | |
C6 | 0.66479 (15) | 0.13418 (10) | 1.07749 (11) | 0.0455 (3) | |
C7 | 0.63168 (17) | 0.21260 (12) | 1.16503 (13) | 0.0563 (4) | |
C8 | 0.4888 (2) | 0.28945 (14) | 1.11997 (18) | 0.0747 (5) | |
H8A | 0.4860 | 0.3344 | 1.1894 | 0.112* | |
H8B | 0.3908 | 0.2461 | 1.0869 | 0.112* | |
H8C | 0.4977 | 0.3372 | 1.0546 | 0.112* | |
C9 | 0.51842 (17) | 0.12501 (12) | 0.66068 (12) | 0.0539 (3) | |
C10 | 0.39516 (16) | 0.11754 (12) | 0.53150 (12) | 0.0524 (3) | |
C11 | 0.4200 (2) | 0.19460 (15) | 0.43794 (15) | 0.0741 (5) | |
H11A | 0.4197 | 0.2706 | 0.4657 | 0.111* | |
H11B | 0.3341 | 0.1846 | 0.3573 | 0.111* | |
H11C | 0.5225 | 0.1786 | 0.4301 | 0.111* | |
C12 | 0.2721 (2) | 0.04683 (17) | 0.50538 (18) | 0.0744 (5) | |
O1 | 0.72227 (16) | 0.21560 (11) | 1.27744 (10) | 0.0806 (4) | |
O2 | 0.89890 (14) | 0.05916 (12) | 1.24440 (10) | 0.0777 (4) | |
H2 | 0.8702 | 0.1069 | 1.2839 | 0.131 (11)* | |
O3 | 0.49615 (13) | 0.05008 (9) | 0.74249 (9) | 0.0621 (3) | |
O4 | 0.62770 (17) | 0.18962 (14) | 0.69180 (11) | 0.1046 (5) | |
H12A | 0.195 (3) | 0.0427 (17) | 0.420 (2) | 0.101 (6)* | |
H12B | 0.257 (3) | −0.0033 (19) | 0.569 (2) | 0.107 (7)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0459 (7) | 0.0615 (8) | 0.0460 (7) | −0.0046 (6) | 0.0081 (6) | 0.0116 (6) |
C2 | 0.0517 (8) | 0.0687 (9) | 0.0676 (9) | 0.0109 (7) | 0.0184 (7) | 0.0115 (7) |
C3 | 0.0638 (9) | 0.0606 (9) | 0.0632 (9) | 0.0001 (7) | 0.0287 (7) | −0.0031 (7) |
C4 | 0.0518 (7) | 0.0558 (7) | 0.0411 (6) | −0.0130 (6) | 0.0123 (6) | −0.0005 (5) |
C5 | 0.0423 (6) | 0.0496 (7) | 0.0429 (6) | −0.0039 (5) | 0.0090 (5) | 0.0045 (5) |
C6 | 0.0446 (6) | 0.0482 (7) | 0.0405 (6) | −0.0071 (5) | 0.0114 (5) | 0.0037 (5) |
C7 | 0.0626 (8) | 0.0581 (8) | 0.0460 (7) | −0.0127 (6) | 0.0171 (6) | −0.0022 (6) |
C8 | 0.0814 (11) | 0.0673 (10) | 0.0778 (11) | 0.0019 (8) | 0.0316 (9) | −0.0141 (8) |
C9 | 0.0565 (8) | 0.0608 (8) | 0.0429 (7) | −0.0084 (6) | 0.0165 (6) | −0.0062 (6) |
C10 | 0.0540 (7) | 0.0572 (8) | 0.0427 (7) | 0.0101 (6) | 0.0137 (6) | −0.0055 (5) |
C11 | 0.0910 (12) | 0.0762 (10) | 0.0522 (9) | 0.0150 (9) | 0.0222 (8) | 0.0069 (7) |
C12 | 0.0591 (9) | 0.0910 (13) | 0.0576 (9) | −0.0046 (9) | 0.0027 (8) | −0.0060 (9) |
O1 | 0.0927 (9) | 0.0936 (9) | 0.0455 (6) | −0.0097 (7) | 0.0130 (6) | −0.0124 (5) |
O2 | 0.0672 (7) | 0.0942 (9) | 0.0505 (6) | 0.0060 (6) | −0.0040 (5) | 0.0160 (6) |
O3 | 0.0678 (6) | 0.0697 (7) | 0.0405 (5) | −0.0222 (5) | 0.0098 (4) | −0.0036 (4) |
O4 | 0.1082 (10) | 0.1330 (12) | 0.0555 (7) | −0.0691 (9) | 0.0092 (7) | 0.0069 (7) |
C1—O2 | 1.352 (2) | C8—H8A | 0.9600 |
C1—C2 | 1.382 (2) | C8—H8B | 0.9600 |
C1—C6 | 1.4062 (19) | C8—H8C | 0.9600 |
C2—C3 | 1.374 (2) | C9—O4 | 1.185 (2) |
C2—H2A | 0.9300 | C9—O3 | 1.353 (2) |
C3—C4 | 1.379 (2) | C9—C10 | 1.476 (2) |
C3—H3A | 0.9300 | C10—C12 | 1.322 (2) |
C4—C5 | 1.3688 (19) | C10—C11 | 1.479 (2) |
C4—O3 | 1.402 (2) | C11—H11A | 0.9600 |
C5—C6 | 1.3987 (17) | C11—H11B | 0.9600 |
C5—H5A | 0.9300 | C11—H11C | 0.9600 |
C6—C7 | 1.4681 (19) | C12—H12A | 0.96 (2) |
C7—O1 | 1.235 (2) | C12—H12B | 0.98 (2) |
C7—C8 | 1.492 (2) | O2—H2 | 0.8200 |
O2—C1—C2 | 117.83 (13) | C7—C8—H8B | 109.5 |
O2—C1—C6 | 121.95 (14) | H8A—C8—H8B | 109.5 |
C2—C1—C6 | 120.22 (12) | C7—C8—H8C | 109.5 |
C3—C2—C1 | 120.68 (13) | H8A—C8—H8C | 109.5 |
C3—C2—H2A | 119.7 | H8B—C8—H8C | 109.5 |
C1—C2—H2A | 119.7 | O4—C9—O3 | 122.11 (13) |
C2—C3—C4 | 119.37 (14) | O4—C9—C10 | 124.24 (13) |
C2—C3—H3A | 120.3 | O3—C9—C10 | 113.65 (12) |
C4—C3—H3A | 120.3 | C12—C10—C9 | 120.75 (14) |
C5—C4—C3 | 121.16 (12) | C12—C10—C11 | 124.09 (15) |
C5—C4—O3 | 119.30 (12) | C9—C10—C11 | 115.16 (13) |
C3—C4—O3 | 119.41 (12) | C10—C11—H11A | 109.5 |
C4—C5—C6 | 120.41 (12) | C10—C11—H11B | 109.5 |
C4—C5—H5A | 119.8 | H11A—C11—H11B | 109.5 |
C6—C5—H5A | 119.8 | C10—C11—H11C | 109.5 |
C5—C6—C1 | 118.14 (12) | H11A—C11—H11C | 109.5 |
C5—C6—C7 | 121.67 (12) | H11B—C11—H11C | 109.5 |
C1—C6—C7 | 120.19 (12) | C10—C12—H12A | 118.7 (13) |
O1—C7—C6 | 120.13 (14) | C10—C12—H12B | 123.1 (13) |
O1—C7—C8 | 119.10 (14) | H12A—C12—H12B | 118.2 (19) |
C6—C7—C8 | 120.78 (13) | C1—O2—H2 | 109.5 |
C7—C8—H8A | 109.5 | C9—O3—C4 | 117.32 (10) |
O2—C1—C2—C3 | −178.7 (1) | C5—C6—C7—O1 | −178.84 (13) |
C6—C1—C2—C3 | 1.1 (2) | C1—C6—C7—O1 | 1.6 (2) |
C1—C2—C3—C4 | −1.0 (2) | C5—C6—C7—C8 | 1.2 (2) |
C2—C3—C4—C5 | −0.1 (2) | C1—C6—C7—C8 | −178.37 (13) |
C2—C3—C4—O3 | −175.79 (12) | O4—C9—C10—C12 | −176.71 (18) |
C3—C4—C5—C6 | 1.18 (19) | O3—C9—C10—C12 | 3.5 (2) |
O3—C4—C5—C6 | 176.83 (11) | O4—C9—C10—C11 | 2.6 (2) |
C4—C5—C6—C1 | −1.04 (18) | O3—C9—C10—C11 | −177.24 (12) |
C4—C5—C6—C7 | 179.36 (11) | O4—C9—O3—C4 | 4.5 (2) |
O2—C1—C6—C5 | 179.7 (1) | C10—C9—O3—C4 | −175.63 (11) |
C2—C1—C6—C5 | −0.10 (19) | C5—C4—O3—C9 | 84.7 (2) |
O2—C1—C6—C7 | −0.69 (19) | C3—C4—O3—C9 | −99.6 (2) |
C2—C1—C6—C7 | 179.50 (12) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2···O1 | 0.82 | 1.82 | 2.546 (2) | 146 |
C5—H5A···O1i | 0.93 | 2.57 | 3.483 (2) | 166 |
C11—H11B···O4i | 0.96 | 2.57 | 3.336 (2) | 137 |
Symmetry code: (i) x−1/2, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C12H12O4 |
Mr | 220.22 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 8.8335 (3), 11.9320 (3), 11.3295 (3) |
β (°) | 111.277 (2) |
V (Å3) | 1112.75 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.25 × 0.17 × 0.17 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2004) |
Tmin, Tmax | 0.976, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14184, 3437, 2080 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.717 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.161, 1.05 |
No. of reflections | 3437 |
No. of parameters | 155 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.21, −0.17 |
Computer programs: APEX2 (Bruker, 2004), APEX2 and SAINT (Bruker, 2004), SAINT and XPREP (Bruker, 2004), SHELXS97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2···O1 | 0.82 | 1.82 | 2.546 (2) | 146.3 |
C5—H5A···O1i | 0.93 | 2.57 | 3.483 (2) | 165.6 |
C11—H11B···O4i | 0.96 | 2.57 | 3.336 (2) | 136.8 |
Symmetry code: (i) x−1/2, −y+1/2, z−1/2. |
Acknowledgements
The authors thank Professor D. Velmurugan, Centre for Advanced Study in Crystallography and Biophysics, University of Madras, for providing the computer facilities.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Acetophenones are useful synthons for the preparation of a wide variety of polyphenolic compounds such as chalcones and flavones (Parmar et al., 1996). Acetophenone derivatives have shown many interesting biological properties such as anti-inflammatory (Sala et al., 2001; Favier et al., 1998), cytotoxic and choleretic (Suksamrarn et al., 1997) activities. Acetophenone is also used as a solvent for cellulose ethers and esters for the production of alcohol-soluble resins. 2-Hydroxy-4- methoxybenzophenone is used on an industrial scale as an ultraviolet absorber in cosmetics and plastics. 2-Hydroxyl-4,6-dimethoxyacetophenone was isolated from the leaves of the peperomia glabella family. Peperomia glabella is an epiphyte used in Venezuelan folk medicine as an anti-asthmatic.
The bond lengths C7—C8, C9—C10 and C10—C11 [1.495 (1), 1.476 (2) and 1.479 (1) Å] are comparable with standard values (Allen et al., 1987). The carbonyl group bond length C7—O1 [1.235 (2) Å] is longer than C9—O4 [1.185 (2) Å]. This may be a result of O1 being involved in intramolecular and intermolecular hydrogen bonds; this would tend to lengthen the C7—O1 bond.
O2, C7, O1 and C8 are coplanar with the benzene ring. The angle between the benzene ring and the plane through O3, C9, O4, C10, C11 and C12 is 86.1 (1)° (Fig. 1).
The molecular structure of the compound is stabilized by a weak intramolecular O—H···O hydrogen bond and the crystal packing is stabilized by intermolecular C—H···O hydrogen bonds. The molecule at (x, y, z) is linked to the symmetry-related molecule at (-1/2 + x, 1/2 - y, -1/2 + z), forming a dimer with graph set descriptor R22(16) (Bernstein et al., 1995). Propagation of these dimer units generates an infinite molecular chain along the crystallographic c axis. Fig. 2 shows the crystal packing of the compound, viewed approximately down the a axis.