organic compounds
of 4-acetylphenyl 3-methylbenzoate
aDepartment of Chemistry, Asthagiri Herbal Research Foundation, Perungudi Industrial Estate, Perungudi, Chennai 600 096, India, and bCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: shirai2011@gmail.com
The planes of the aromatic rings of the title compound, C16H14O3, make a dihedral angle of 82.52 (8)°. The acetyl group and the phenyl ring make a dihedral angle of 1.65 (1)°. In the crystal, the molecules are linked by C—H⋯O interactions, generating C(7) chains along the a-axis direction.
Keywords: crystal structure; 4-acetylphenyl 3-methylbenzoate; hydrogen bonding; acetophenone derivatives.
CCDC reference: 1020285
1. Related literature
For the biological activity of acetophenone derivatives, see: Chung et al. (2003).
2. Experimental
2.1. Crystal data
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2.1.3. Refinement
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Data collection: APEX2 (Bruker, 2008); cell APEX2; data reduction: SAINT (Bruker, 2008); 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, 2012); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
CCDC reference: 1020285
10.1107/S1600536814018923/bt6992sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814018923/bt6992Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814018923/bt6992Isup3.cml
A clean and dry 250ml two neck RB flask was fitted with a condenser and an addition funnel. 0.5 mol of 4- hydroxy acetophenone was taken and 200ml of chloroform was added to it with stirring. The reaction mixture was cooled at 5-10°c. 0.5 mol of meta-tolouyl chloride was added dropwise to the reaction mixture. Stirring was continued for another 15 mins and 0.5 mol of potassium carbonate was slowly added. The reaction was continued for 2 hours and monitored using TLC. The reaction mixture was transferred into a 1 l beaker and washed twice with water (2 x 250 ml). The chloroform layer was separated and washed with 10% NaOH solution (2x250ml). The chloroform layer was separated and dried with anhydrous sodium sulphate. The chloroform layer was then filtered and concentrated under reduced pressure using rotary vacuum. It was cooled and hexane was added to it. The solid which precipitated was filtered and the product was air dried. After purification the compound was recrystallised in CHCl3 by slow evaporation method.
The hydrogen atoms were placed in calculated positions with C—H = 0.93Å to 0.96 Å, refined in the riding model with fixed isotropic displacement parameters: Uiso(H) = 1.5Ueq(C) for methyl groups and Uiso(H) = 1.2Ueq(C) for Caromatic. The methyl groups were allowed to rotate but not to tip.
Data collection: APEX2 (Bruker, 2008); cell
APEX2 (Bruker, 2008); data reduction: SAINT (Bruker, 2008); 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, 2012); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).C16H14O3 | F(000) = 536 |
Mr = 254.27 | Dx = 1.274 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3303 reflections |
a = 8.7167 (3) Å | θ = 2.4–28.3° |
b = 9.8521 (3) Å | µ = 0.09 mm−1 |
c = 15.4938 (4) Å | T = 293 K |
β = 95.149 (2)° | Block, colourless |
V = 1325.20 (7) Å3 | 0.30 × 0.25 × 0.20 mm |
Z = 4 |
Bruker SMART APEXII area-detector diffractometer | 3303 independent reflections |
Radiation source: fine-focus sealed tube | 2130 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.033 |
ω and ϕ scans | θmax = 28.3°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −11→9 |
Tmin = 0.974, Tmax = 0.983 | k = −10→13 |
12798 measured reflections | l = −20→20 |
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)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.162 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0803P)2 + 0.1756P] where P = (Fo2 + 2Fc2)/3 |
3303 reflections | (Δ/σ)max = 0.043 |
174 parameters | Δρmax = 0.14 e Å−3 |
0 restraints | Δρmin = −0.19 e Å−3 |
C16H14O3 | V = 1325.20 (7) Å3 |
Mr = 254.27 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 8.7167 (3) Å | µ = 0.09 mm−1 |
b = 9.8521 (3) Å | T = 293 K |
c = 15.4938 (4) Å | 0.30 × 0.25 × 0.20 mm |
β = 95.149 (2)° |
Bruker SMART APEXII area-detector diffractometer | 3303 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 2130 reflections with I > 2σ(I) |
Tmin = 0.974, Tmax = 0.983 | Rint = 0.033 |
12798 measured reflections |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.162 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.14 e Å−3 |
3303 reflections | Δρmin = −0.19 e Å−3 |
174 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 | ||
C1 | 0.2306 (3) | 1.0754 (3) | −0.43251 (12) | 0.0957 (7) | |
H1A | 0.3009 | 1.1250 | −0.4649 | 0.144* | |
H1B | 0.1793 | 1.1370 | −0.3966 | 0.144* | |
H1C | 0.1557 | 1.0305 | −0.4718 | 0.144* | |
C2 | 0.31775 (19) | 0.97205 (18) | −0.37669 (9) | 0.0637 (4) | |
C3 | 0.4192 (2) | 0.88402 (19) | −0.41068 (11) | 0.0747 (5) | |
H3 | 0.4342 | 0.8893 | −0.4693 | 0.090* | |
C4 | 0.4986 (2) | 0.7889 (2) | −0.36009 (13) | 0.0826 (6) | |
H4 | 0.5666 | 0.7306 | −0.3845 | 0.099* | |
C5 | 0.4783 (2) | 0.77929 (17) | −0.27263 (11) | 0.0711 (5) | |
H5 | 0.5326 | 0.7151 | −0.2381 | 0.085* | |
C6 | 0.37624 (16) | 0.86609 (15) | −0.23730 (9) | 0.0538 (4) | |
C7 | 0.29747 (17) | 0.96191 (16) | −0.28903 (9) | 0.0562 (4) | |
H7 | 0.2297 | 1.0207 | −0.2648 | 0.067* | |
C8 | 0.35490 (18) | 0.85016 (16) | −0.14433 (9) | 0.0576 (4) | |
C9 | 0.21558 (18) | 0.92477 (16) | −0.03042 (9) | 0.0581 (4) | |
C10 | 0.10870 (19) | 0.83096 (17) | −0.01086 (10) | 0.0669 (4) | |
H10 | 0.0630 | 0.7740 | −0.0536 | 0.080* | |
C11 | 0.06933 (19) | 0.82189 (17) | 0.07360 (11) | 0.0655 (4) | |
H11 | −0.0027 | 0.7578 | 0.0876 | 0.079* | |
C12 | 0.13591 (17) | 0.90698 (15) | 0.13718 (9) | 0.0553 (4) | |
C13 | 0.24248 (19) | 1.00229 (17) | 0.11470 (10) | 0.0621 (4) | |
H13 | 0.2874 | 1.0609 | 0.1567 | 0.075* | |
C14 | 0.28287 (19) | 1.01129 (17) | 0.03027 (10) | 0.0642 (4) | |
H14 | 0.3545 | 1.0752 | 0.0154 | 0.077* | |
C15 | 0.0930 (2) | 0.89341 (17) | 0.22797 (11) | 0.0662 (4) | |
C16 | 0.1621 (3) | 0.9862 (2) | 0.29564 (11) | 0.0912 (6) | |
H16A | 0.1261 | 0.9627 | 0.3505 | 0.137* | |
H16B | 0.1329 | 1.0779 | 0.2811 | 0.137* | |
H16C | 0.2723 | 0.9783 | 0.2993 | 0.137* | |
O1 | 0.00206 (19) | 0.80739 (15) | 0.24608 (9) | 0.0967 (5) | |
O2 | 0.25094 (14) | 0.93822 (12) | −0.11686 (6) | 0.0694 (3) | |
O3 | 0.42165 (16) | 0.77076 (15) | −0.09685 (7) | 0.0882 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0939 (14) | 0.1320 (18) | 0.0614 (10) | 0.0018 (13) | 0.0082 (9) | 0.0211 (11) |
C2 | 0.0628 (9) | 0.0782 (11) | 0.0507 (8) | −0.0189 (8) | 0.0079 (7) | −0.0029 (7) |
C3 | 0.0875 (12) | 0.0843 (12) | 0.0551 (8) | −0.0229 (10) | 0.0220 (8) | −0.0151 (8) |
C4 | 0.0967 (14) | 0.0730 (12) | 0.0838 (12) | −0.0033 (10) | 0.0388 (10) | −0.0202 (10) |
C5 | 0.0796 (11) | 0.0615 (10) | 0.0747 (10) | 0.0042 (8) | 0.0199 (9) | −0.0054 (8) |
C6 | 0.0544 (8) | 0.0544 (8) | 0.0533 (7) | −0.0079 (6) | 0.0089 (6) | −0.0067 (6) |
C7 | 0.0549 (8) | 0.0630 (9) | 0.0513 (7) | −0.0068 (7) | 0.0082 (6) | −0.0048 (6) |
C8 | 0.0596 (9) | 0.0581 (8) | 0.0555 (8) | 0.0002 (7) | 0.0080 (6) | 0.0000 (7) |
C9 | 0.0636 (9) | 0.0639 (9) | 0.0473 (7) | 0.0127 (7) | 0.0090 (6) | 0.0038 (6) |
C10 | 0.0697 (10) | 0.0673 (10) | 0.0635 (9) | −0.0004 (8) | 0.0047 (8) | −0.0113 (7) |
C11 | 0.0629 (9) | 0.0638 (9) | 0.0716 (9) | −0.0035 (7) | 0.0164 (7) | −0.0027 (8) |
C12 | 0.0558 (8) | 0.0564 (8) | 0.0550 (8) | 0.0108 (6) | 0.0115 (6) | 0.0026 (6) |
C13 | 0.0682 (9) | 0.0672 (9) | 0.0511 (7) | −0.0030 (8) | 0.0066 (7) | −0.0032 (7) |
C14 | 0.0692 (10) | 0.0687 (10) | 0.0556 (8) | −0.0057 (8) | 0.0107 (7) | 0.0051 (7) |
C15 | 0.0742 (10) | 0.0623 (9) | 0.0652 (9) | 0.0159 (8) | 0.0240 (8) | 0.0063 (7) |
C16 | 0.1263 (17) | 0.0948 (14) | 0.0551 (9) | 0.0026 (13) | 0.0238 (10) | −0.0015 (9) |
O1 | 0.1189 (11) | 0.0866 (9) | 0.0923 (9) | −0.0109 (8) | 0.0523 (8) | 0.0021 (7) |
O2 | 0.0850 (8) | 0.0765 (7) | 0.0481 (5) | 0.0207 (6) | 0.0143 (5) | 0.0048 (5) |
O3 | 0.0999 (10) | 0.0972 (9) | 0.0702 (7) | 0.0355 (8) | 0.0226 (7) | 0.0232 (7) |
C1—C2 | 1.498 (3) | C9—C14 | 1.362 (2) |
C1—H1A | 0.9600 | C9—C10 | 1.366 (2) |
C1—H1B | 0.9600 | C9—O2 | 1.4071 (17) |
C1—H1C | 0.9600 | C10—C11 | 1.385 (2) |
C2—C3 | 1.377 (2) | C10—H10 | 0.9300 |
C2—C7 | 1.389 (2) | C11—C12 | 1.381 (2) |
C3—C4 | 1.369 (3) | C11—H11 | 0.9300 |
C3—H3 | 0.9300 | C12—C13 | 1.387 (2) |
C4—C5 | 1.386 (2) | C12—C15 | 1.494 (2) |
C4—H4 | 0.9300 | C13—C14 | 1.388 (2) |
C5—C6 | 1.382 (2) | C13—H13 | 0.9300 |
C5—H5 | 0.9300 | C14—H14 | 0.9300 |
C6—C7 | 1.381 (2) | C15—O1 | 1.210 (2) |
C6—C8 | 1.477 (2) | C15—C16 | 1.478 (3) |
C7—H7 | 0.9300 | C16—H16A | 0.9600 |
C8—O3 | 1.1895 (18) | C16—H16B | 0.9600 |
C8—O2 | 1.3506 (18) | C16—H16C | 0.9600 |
C2—C1—H1A | 109.5 | C14—C9—O2 | 118.72 (15) |
C2—C1—H1B | 109.5 | C10—C9—O2 | 119.14 (14) |
H1A—C1—H1B | 109.5 | C9—C10—C11 | 119.01 (15) |
C2—C1—H1C | 109.5 | C9—C10—H10 | 120.5 |
H1A—C1—H1C | 109.5 | C11—C10—H10 | 120.5 |
H1B—C1—H1C | 109.5 | C12—C11—C10 | 120.72 (15) |
C3—C2—C7 | 118.12 (16) | C12—C11—H11 | 119.6 |
C3—C2—C1 | 121.15 (15) | C10—C11—H11 | 119.6 |
C7—C2—C1 | 120.73 (16) | C11—C12—C13 | 118.68 (14) |
C4—C3—C2 | 121.42 (15) | C11—C12—C15 | 119.52 (14) |
C4—C3—H3 | 119.3 | C13—C12—C15 | 121.80 (14) |
C2—C3—H3 | 119.3 | C12—C13—C14 | 120.81 (14) |
C3—C4—C5 | 120.28 (17) | C12—C13—H13 | 119.6 |
C3—C4—H4 | 119.9 | C14—C13—H13 | 119.6 |
C5—C4—H4 | 119.9 | C9—C14—C13 | 118.74 (15) |
C6—C5—C4 | 119.25 (17) | C9—C14—H14 | 120.6 |
C6—C5—H5 | 120.4 | C13—C14—H14 | 120.6 |
C4—C5—H5 | 120.4 | O1—C15—C16 | 120.15 (16) |
C7—C6—C5 | 119.82 (14) | O1—C15—C12 | 120.37 (16) |
C7—C6—C8 | 122.62 (13) | C16—C15—C12 | 119.48 (15) |
C5—C6—C8 | 117.55 (14) | C15—C16—H16A | 109.5 |
C6—C7—C2 | 121.10 (14) | C15—C16—H16B | 109.5 |
C6—C7—H7 | 119.4 | H16A—C16—H16B | 109.5 |
C2—C7—H7 | 119.4 | C15—C16—H16C | 109.5 |
O3—C8—O2 | 122.16 (14) | H16A—C16—H16C | 109.5 |
O3—C8—C6 | 125.13 (14) | H16B—C16—H16C | 109.5 |
O2—C8—C6 | 112.70 (13) | C8—O2—C9 | 116.74 (11) |
C14—C9—C10 | 122.03 (14) | ||
C7—C2—C3—C4 | −0.1 (2) | C9—C10—C11—C12 | 0.5 (2) |
C1—C2—C3—C4 | −179.69 (18) | C10—C11—C12—C13 | 0.3 (2) |
C2—C3—C4—C5 | 0.0 (3) | C10—C11—C12—C15 | −179.06 (14) |
C3—C4—C5—C6 | 0.4 (3) | C11—C12—C13—C14 | −0.7 (2) |
C4—C5—C6—C7 | −0.7 (2) | C15—C12—C13—C14 | 178.71 (14) |
C4—C5—C6—C8 | 178.48 (15) | C10—C9—C14—C13 | 0.8 (2) |
C5—C6—C7—C2 | 0.6 (2) | O2—C9—C14—C13 | 176.97 (13) |
C8—C6—C7—C2 | −178.52 (13) | C12—C13—C14—C9 | 0.1 (2) |
C3—C2—C7—C6 | −0.2 (2) | C11—C12—C15—O1 | 0.9 (2) |
C1—C2—C7—C6 | 179.38 (16) | C13—C12—C15—O1 | −178.43 (16) |
C7—C6—C8—O3 | −178.76 (16) | C11—C12—C15—C16 | −178.87 (16) |
C5—C6—C8—O3 | 2.1 (2) | C13—C12—C15—C16 | 1.8 (2) |
C7—C6—C8—O2 | 0.3 (2) | O3—C8—O2—C9 | −4.9 (2) |
C5—C6—C8—O2 | −178.88 (14) | C6—C8—O2—C9 | 176.01 (13) |
C14—C9—C10—C11 | −1.1 (2) | C14—C9—O2—C8 | 100.57 (17) |
O2—C9—C10—C11 | −177.29 (13) | C10—C9—O2—C8 | −83.11 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
C7—H7···O2 | 0.93 | 2.42 | 2.7439 (17) | 100 |
C16—H16B···O1i | 0.96 | 2.57 | 3.509 (3) | 167 |
C3—H3···O3ii | 0.93 | 2.52 | 3.265 (2) | 137 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) x, −y+3/2, z−1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C7—H7···O2 | 0.93 | 2.42 | 2.7439 (17) | 100.2 |
C16—H16B···O1i | 0.96 | 2.57 | 3.509 (3) | 167.4 |
C3—H3···O3ii | 0.93 | 2.52 | 3.265 (2) | 136.9 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) x, −y+3/2, z−1/2. |
Acknowledgements
VV and DV thank the TBI X-ray facility, CAS in Crystallography and Biophysics, University of Madras, India, for the data collection. VV thanks the DBT, Government of India, for providing a fellowship.
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.
Acetophenone derivatives are popular in organic synthesis for their applications in biology and pharmacological activities. They are known to exhibit antioxidant and antityrosinase activities (Chung et al., 2003).
The ORTEP plot of the molecule is shown in Fig. 1. The carbonyl groups are coplanar with the rings to which they are attached, which is evident from torsion angles [C5-C6-C8-O3 2.1 (2)° and C11-C12-C15-O1 0.9 (2)]. The dihedral angle between the two aromatic rings is 82.52 (8)°.
The molecular structure is stabilized by an intramolecular and the crystal packing by intermolecular C—H···O hydrogen bonds (Table 1 & Fig. 2).