organic compounds
1-(2-Hydroxy-5-methylphenyl)-3-(2-methylphenyl)prop-2-en-1-one
aDepartment of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal 576 104, India, and bDepartment of Studies in Physics, Manasagangotri, University of Mysore, Mysore 570 006, India
*Correspondence e-mail: mas@physics.uni-mysore.ac.in
In the title compound, C17H16O2, the dihedral angle between the aromatic rings is 5.12 (13)° and an intramolecular O—H⋯O hydrogen bond generates an S(6) ring.
Related literature
For a related structure and background references to et al. (2011).
see: ThippeswamyExperimental
Crystal data
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Data collection
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Refinement
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Data collection: XPRESS (MacScience, 2002); cell SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO (Otwinowski & Minor, 1997) and SCALEPACK; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPII (Johnson, 1976); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811018381/hb5868sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811018381/hb5868Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811018381/hb5868Isup3.cml
The title compound was prepared by dissolving 2-hydroxy-5- methoxyacetophenone 0.05 m mol in 15 ml of ethanol taken in a conical flask. To this 5 ml of 20° aqueous sodium hydroxide was added and kept for stirring at room temperature. To this mixture, 4-methylbenzaldehyde 0.05 m mol was added and continued stirring till the completion of reaction. The progress of the reaction was monitored by TLC using n-hexane and ethylacetate as solvent system. After completion of the reaction, the mixture was poured into ice cold water, mixed properly and acidified with dilute hydrochloric acid. The title compound separates as precipitate which was collected by filtration and crystallized from methanol as orange blocks of (I).
Data collection: XPRESS (MacScience, 2002); cell
SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO and SCALEPACK (Otwinowski & Minor, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPII (Johnson, 1976); software used to prepare material for publication: PLATON (Spek, 2009).Fig. 1. Molecular structure of (I) with 50% probability displacement ellipsoids. | |
Fig. 2. Packing diagram for (I). |
C17H16O2 | F(000) = 1072 |
Mr = 252.30 | Dx = 1.212 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 8036 reflections |
a = 13.3930 (11) Å | θ = 2.4–25.0° |
b = 14.1740 (16) Å | µ = 0.08 mm−1 |
c = 14.5710 (15) Å | T = 293 K |
V = 2766.0 (5) Å3 | Block, orange |
Z = 8 | 0.29 × 0.27 × 0.25 mm |
MacScience DIPLabo 32001 diffractometer | 1654 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.044 |
Graphite monochromator | θmax = 25.0°, θmin = 2.5° |
Detector resolution: 10.0 pixels mm-1 | h = −15→15 |
ω scans | k = −15→16 |
8036 measured reflections | l = −17→17 |
2422 independent reflections |
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)] = 0.073 | H-atom parameters constrained |
wR(F2) = 0.209 | w = 1/[σ2(Fo2) + (0.1131P)2 + 0.2932P] where P = (Fo2 + 2Fc2)/3 |
S = 1.15 | (Δ/σ)max = 0.009 |
2422 reflections | Δρmax = 0.37 e Å−3 |
175 parameters | Δρmin = −0.38 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: 0.025 (4) |
C17H16O2 | V = 2766.0 (5) Å3 |
Mr = 252.30 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 13.3930 (11) Å | µ = 0.08 mm−1 |
b = 14.1740 (16) Å | T = 293 K |
c = 14.5710 (15) Å | 0.29 × 0.27 × 0.25 mm |
MacScience DIPLabo 32001 diffractometer | 1654 reflections with I > 2σ(I) |
8036 measured reflections | Rint = 0.044 |
2422 independent reflections |
R[F2 > 2σ(F2)] = 0.073 | 0 restraints |
wR(F2) = 0.209 | H-atom parameters constrained |
S = 1.15 | Δρmax = 0.37 e Å−3 |
2422 reflections | Δρmin = −0.38 e Å−3 |
175 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 > 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 | 0.93869 (16) | 0.33849 (16) | 0.36305 (17) | 0.0641 (7) | |
C2 | 0.91789 (15) | 0.39731 (16) | 0.44755 (17) | 0.0667 (7) | |
H2 | 0.9447 | 0.3787 | 0.5036 | 0.080* | |
C3 | 0.86192 (16) | 0.47546 (16) | 0.44390 (17) | 0.0657 (7) | |
H3 | 0.8382 | 0.4919 | 0.3861 | 0.079* | |
C4 | 0.83271 (15) | 0.53964 (17) | 0.52070 (17) | 0.0686 (7) | |
C5 | 0.8504 (2) | 0.5140 (2) | 0.6137 (2) | 0.0882 (9) | |
H5 | 0.8804 | 0.4563 | 0.6266 | 0.106* | |
C6 | 0.8230 (3) | 0.5747 (3) | 0.6874 (2) | 0.1102 (11) | |
H6 | 0.8356 | 0.5570 | 0.7477 | 0.132* | |
C7 | 0.7767 (3) | 0.6617 (3) | 0.6682 (3) | 0.1179 (14) | |
H7 | 0.7587 | 0.7019 | 0.7159 | 0.141* | |
C8 | 0.7581 (2) | 0.6874 (2) | 0.5779 (3) | 0.1063 (12) | |
H8 | 0.7271 | 0.7449 | 0.5665 | 0.128* | |
C9 | 0.78464 (17) | 0.62923 (19) | 0.5019 (2) | 0.0812 (8) | |
C10 | 0.7635 (2) | 0.6625 (2) | 0.4032 (3) | 0.1076 (11) | |
H10A | 0.7293 | 0.7220 | 0.4048 | 0.161* | |
H10B | 0.7225 | 0.6167 | 0.3725 | 0.161* | |
H10C | 0.8254 | 0.6695 | 0.3707 | 0.161* | |
O11 | 0.91143 (13) | 0.36828 (12) | 0.28533 (12) | 0.0830 (6) | |
C12 | 0.98967 (15) | 0.24407 (16) | 0.37022 (17) | 0.0626 (6) | |
C13 | 1.02359 (15) | 0.20750 (17) | 0.45520 (17) | 0.0673 (7) | |
H13 | 1.0135 | 0.2428 | 0.5082 | 0.081* | |
C14 | 1.07221 (17) | 0.11945 (19) | 0.4623 (2) | 0.0772 (8) | |
C15 | 1.0858 (2) | 0.0661 (2) | 0.3793 (2) | 0.0908 (9) | |
H15 | 1.1180 | 0.0081 | 0.3825 | 0.109* | |
C16 | 1.0530 (2) | 0.0979 (2) | 0.2950 (2) | 0.0924 (9) | |
H16 | 1.0623 | 0.0611 | 0.2429 | 0.111* | |
C17 | 1.00483 (19) | 0.18723 (18) | 0.2883 (2) | 0.0749 (7) | |
O18 | 0.97406 (16) | 0.21620 (15) | 0.20261 (13) | 0.1000 (7) | |
H18 | 0.9475 | 0.2682 | 0.2066 | 0.150* | |
C19 | 1.1099 (2) | 0.0842 (2) | 0.5547 (2) | 0.0995 (10) | |
H19A | 1.1807 | 0.0944 | 0.5588 | 0.149* | |
H19B | 1.0960 | 0.0181 | 0.5605 | 0.149* | |
H19C | 1.0770 | 0.1180 | 0.6031 | 0.149* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0505 (11) | 0.0700 (14) | 0.0717 (16) | −0.0065 (10) | −0.0030 (10) | −0.0002 (12) |
C2 | 0.0521 (12) | 0.0733 (14) | 0.0748 (17) | 0.0036 (11) | −0.0079 (11) | −0.0016 (12) |
C3 | 0.0485 (11) | 0.0733 (14) | 0.0754 (16) | −0.0053 (11) | 0.0020 (10) | 0.0045 (12) |
C4 | 0.0436 (11) | 0.0783 (15) | 0.0837 (19) | −0.0045 (11) | 0.0050 (11) | −0.0046 (12) |
C5 | 0.0648 (15) | 0.109 (2) | 0.091 (2) | −0.0065 (14) | 0.0051 (14) | −0.0096 (17) |
C6 | 0.0821 (19) | 0.159 (3) | 0.089 (2) | −0.025 (2) | 0.0116 (17) | −0.026 (2) |
C7 | 0.081 (2) | 0.140 (3) | 0.133 (3) | −0.025 (2) | 0.036 (2) | −0.057 (3) |
C8 | 0.0632 (16) | 0.095 (2) | 0.161 (4) | −0.0030 (15) | 0.030 (2) | −0.030 (2) |
C9 | 0.0486 (13) | 0.0778 (16) | 0.117 (2) | −0.0026 (12) | 0.0137 (13) | −0.0063 (16) |
C10 | 0.0789 (18) | 0.094 (2) | 0.150 (3) | 0.0232 (17) | 0.0071 (19) | 0.0232 (19) |
O11 | 0.0850 (12) | 0.0894 (12) | 0.0746 (13) | 0.0041 (10) | −0.0114 (9) | 0.0032 (9) |
C12 | 0.0476 (11) | 0.0683 (13) | 0.0721 (16) | −0.0059 (10) | 0.0035 (10) | −0.0023 (11) |
C13 | 0.0451 (11) | 0.0729 (14) | 0.0839 (18) | 0.0025 (11) | 0.0032 (11) | −0.0028 (12) |
C14 | 0.0506 (13) | 0.0789 (16) | 0.102 (2) | 0.0035 (12) | 0.0047 (12) | 0.0072 (15) |
C15 | 0.0686 (16) | 0.0779 (17) | 0.126 (3) | 0.0118 (14) | 0.0164 (17) | −0.0007 (17) |
C16 | 0.0861 (18) | 0.0858 (19) | 0.105 (2) | 0.0037 (15) | 0.0221 (17) | −0.0233 (16) |
C17 | 0.0698 (15) | 0.0801 (16) | 0.0749 (18) | −0.0078 (13) | 0.0117 (12) | −0.0047 (13) |
O18 | 0.1154 (16) | 0.1075 (15) | 0.0771 (14) | 0.0001 (12) | 0.0056 (11) | −0.0128 (11) |
C19 | 0.0693 (16) | 0.103 (2) | 0.126 (3) | 0.0179 (16) | −0.0041 (16) | 0.0227 (18) |
C1—O11 | 1.263 (3) | C10—H10A | 0.9600 |
C1—C12 | 1.506 (3) | C10—H10B | 0.9600 |
C1—C2 | 1.513 (3) | C10—H10C | 0.9600 |
C2—C3 | 1.339 (3) | C12—C13 | 1.417 (3) |
C2—H2 | 0.9300 | C12—C17 | 1.454 (4) |
C3—C4 | 1.494 (3) | C13—C14 | 1.411 (3) |
C3—H3 | 0.9300 | C13—H13 | 0.9300 |
C4—C5 | 1.423 (4) | C14—C15 | 1.438 (4) |
C4—C9 | 1.450 (4) | C14—C19 | 1.523 (4) |
C5—C6 | 1.423 (4) | C15—C16 | 1.379 (4) |
C5—H5 | 0.9300 | C15—H15 | 0.9300 |
C6—C7 | 1.409 (5) | C16—C17 | 1.425 (4) |
C6—H6 | 0.9300 | C16—H16 | 0.9300 |
C7—C8 | 1.387 (5) | C17—O18 | 1.378 (3) |
C7—H7 | 0.9300 | O18—H18 | 0.8200 |
C8—C9 | 1.425 (4) | C19—H19A | 0.9600 |
C8—H8 | 0.9300 | C19—H19B | 0.9600 |
C9—C10 | 1.541 (4) | C19—H19C | 0.9600 |
O11—C1—C12 | 119.4 (2) | H10A—C10—H10B | 109.5 |
O11—C1—C2 | 119.5 (2) | C9—C10—H10C | 109.5 |
C12—C1—C2 | 121.1 (2) | H10A—C10—H10C | 109.5 |
C3—C2—C1 | 121.8 (2) | H10B—C10—H10C | 109.5 |
C3—C2—H2 | 119.1 | C13—C12—C17 | 118.0 (2) |
C1—C2—H2 | 119.1 | C13—C12—C1 | 122.1 (2) |
C2—C3—C4 | 128.4 (2) | C17—C12—C1 | 119.9 (2) |
C2—C3—H3 | 115.8 | C14—C13—C12 | 122.4 (2) |
C4—C3—H3 | 115.8 | C14—C13—H13 | 118.8 |
C5—C4—C9 | 118.5 (2) | C12—C13—H13 | 118.8 |
C5—C4—C3 | 120.9 (2) | C13—C14—C15 | 117.5 (3) |
C9—C4—C3 | 120.6 (2) | C13—C14—C19 | 120.5 (3) |
C4—C5—C6 | 121.4 (3) | C15—C14—C19 | 122.0 (2) |
C4—C5—H5 | 119.3 | C16—C15—C14 | 122.4 (3) |
C6—C5—H5 | 119.3 | C16—C15—H15 | 118.8 |
C7—C6—C5 | 119.6 (3) | C14—C15—H15 | 118.8 |
C7—C6—H6 | 120.2 | C15—C16—C17 | 119.7 (3) |
C5—C6—H6 | 120.2 | C15—C16—H16 | 120.1 |
C8—C7—C6 | 119.7 (3) | C17—C16—H16 | 120.1 |
C8—C7—H7 | 120.1 | O18—C17—C16 | 117.6 (3) |
C6—C7—H7 | 120.1 | O18—C17—C12 | 122.5 (2) |
C7—C8—C9 | 122.7 (3) | C16—C17—C12 | 119.9 (3) |
C7—C8—H8 | 118.6 | C17—O18—H18 | 109.5 |
C9—C8—H8 | 118.6 | C14—C19—H19A | 109.5 |
C8—C9—C4 | 118.1 (3) | C14—C19—H19B | 109.5 |
C8—C9—C10 | 120.2 (3) | H19A—C19—H19B | 109.5 |
C4—C9—C10 | 121.7 (2) | C14—C19—H19C | 109.5 |
C9—C10—H10A | 109.5 | H19A—C19—H19C | 109.5 |
C9—C10—H10B | 109.5 | H19B—C19—H19C | 109.5 |
O11—C1—C2—C3 | 7.3 (3) | C2—C1—C12—C13 | −2.3 (3) |
C12—C1—C2—C3 | −171.5 (2) | O11—C1—C12—C17 | −1.5 (3) |
C1—C2—C3—C4 | 178.5 (2) | C2—C1—C12—C17 | 177.34 (19) |
C2—C3—C4—C5 | −10.4 (3) | C17—C12—C13—C14 | 0.9 (3) |
C2—C3—C4—C9 | 170.3 (2) | C1—C12—C13—C14 | −179.4 (2) |
C9—C4—C5—C6 | −0.8 (4) | C12—C13—C14—C15 | −0.6 (3) |
C3—C4—C5—C6 | 179.9 (2) | C12—C13—C14—C19 | 178.3 (2) |
C4—C5—C6—C7 | 0.5 (4) | C13—C14—C15—C16 | −0.3 (4) |
C5—C6—C7—C8 | 0.1 (4) | C19—C14—C15—C16 | −179.2 (2) |
C6—C7—C8—C9 | −0.4 (5) | C14—C15—C16—C17 | 0.9 (4) |
C7—C8—C9—C4 | 0.2 (4) | C15—C16—C17—O18 | 179.5 (2) |
C7—C8—C9—C10 | −179.0 (3) | C15—C16—C17—C12 | −0.6 (4) |
C5—C4—C9—C8 | 0.4 (3) | C13—C12—C17—O18 | 179.6 (2) |
C3—C4—C9—C8 | 179.8 (2) | C1—C12—C17—O18 | −0.1 (3) |
C5—C4—C9—C10 | 179.6 (2) | C13—C12—C17—C16 | −0.3 (3) |
C3—C4—C9—C10 | −1.0 (3) | C1—C12—C17—C16 | −180.0 (2) |
O11—C1—C12—C13 | 178.86 (19) |
Experimental details
Crystal data | |
Chemical formula | C17H16O2 |
Mr | 252.30 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 293 |
a, b, c (Å) | 13.3930 (11), 14.1740 (16), 14.5710 (15) |
V (Å3) | 2766.0 (5) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.29 × 0.27 × 0.25 |
Data collection | |
Diffractometer | MacScience DIPLabo 32001 diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8036, 2422, 1654 |
Rint | 0.044 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.073, 0.209, 1.15 |
No. of reflections | 2422 |
No. of parameters | 175 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.37, −0.38 |
Computer programs: XPRESS (MacScience, 2002), DENZO and SCALEPACK (Otwinowski & Minor, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEPII (Johnson, 1976), PLATON (Spek, 2009).
Acknowledgements
The authors are grateful to the DST/CSIR, New Delhi, and the University of Mysore for financial support and duly acknowledge Manipal College of Pharmaceutical Sciences for providing facilities to carry out the synthetic work.
References
Johnson, C. K. (1976). ORTEPII. Report ORNL–5138. Oak Ridge National Laboratory, Tennessee, USA. Google Scholar
MacScience (2002). XPRESS. MacScience Co. Ltd, Yokohama, Japan. Google Scholar
Otwinowski, Z. & Minor, W. (1997). Methods in Enzymology, Vol. 276, Macromolecular Crystallography, Part A, edited by C. W. Carter Jr & R. M. Sweet, pp. 307–326. New York: Academic Press. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Thippeswamy, G. B., Vijay Kumar, D., Jayashree, B. S., Sridhar, M. A. & Shashidhara Prasad, J. (2011). Acta Cryst. E67, o829. Web of Science CSD CrossRef IUCr Journals Google Scholar
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.
As part of our ongoing structural studies of chalcones (Thippeswamy et al., 2011), we now report the synthesis and crystal structure of the title compound, (I), (Fig. 1).
The title compound, C17H16O2, consists of two methylphenyl rings attached at ei-ther sides of the propanone chain. The propanone unit is planar, which is confirmed by the r.m.s. deviation of 0.003 (3)Å from the mean plane. The dihedral angle between the least squares planes of 5-methylphenyl ring and 2-methylphenyl ring is 5.93 (13)° which indicates that 5-methylphenyl ring in +Syn-periplanar conformation with 2-methylphenyl ring. The bond lengths C1—O11, C1—C12, C1—C2, C2—C3, C3—C4 and bond angles C1—C2—C12,C1—C2—C3 are in good agreement with these of a similar compound reported earlier (Thippeswamy et al., 2011). The angles C2—C1—O11, C12—C1—O11 and C2—C1—C12 are 119.5 (2)°, 119.4 (2)° and 121.1 (2)° respectively which indicate that the position of C1 atom is nearly in trigonal geometry. An intramolecular O—H···O hydrogen bond occurs (Table 1).