Abstract
In the title compound, C18H18O5, the dihedral angle between the two benzene rings is 55.2 (3)°. The ethyl acrylate linkage is planar and forms dihedral angles of 21.3 (3) and 41.0 (3)°, respectively, with the hydroxyphenyl and methoxyphenyl rings. In the crystal structure, molecules are linked into zigzag chains along the b axis by O—H⋯O hydrogen bonds.
Related literature
For general background, see: Huang et al. (2008 ▶); Li et al. (2008 ▶); Liu et al. (2008 ▶); Shi et al. (2008 ▶); Xiao et al. (2008 ▶). For bond-length data, see: Allen et al. (1987 ▶).
Experimental
Crystal data
C18H18O5
M r = 314.33
Orthorhombic,
a = 7.4773 (16) Å
b = 11.661 (2) Å
c = 18.417 (4) Å
V = 1605.8 (6) Å3
Z = 4
Mo Kα radiation
μ = 0.10 mm−1
T = 298 (2) K
0.40 × 0.30 × 0.20 mm
Data collection
Bruker SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2001 ▶) T min = 0.963, T max = 0.981
5527 measured reflections
1822 independent reflections
1486 reflections with I > 2σ(I)
R int = 0.032
Refinement
R[F 2 > 2σ(F 2)] = 0.051
wR(F 2) = 0.134
S = 1.05
1822 reflections
211 parameters
H-atom parameters constrained
Δρmax = 0.26 e Å−3
Δρmin = −0.34 e Å−3
Data collection: SMART (Bruker, 2007 ▶); cell refinement: SAINT (Bruker, 2007 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supplementary Material
Crystal structure: contains datablocks global, I. DOI: 10.1107/S160053680803571X/ci2693sup1.cif
Structure factors: contains datablocks I. DOI: 10.1107/S160053680803571X/ci2693Isup2.hkl
Additional supplementary materials: crystallographic information; 3D view; checkCIF report
Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O4—H4⋯O1i | 0.82 | 2.00 | 2.812 (3) | 169 |
Symmetry code: (i)
.
supplementary crystallographic information
Comment
Phenylacetate and styrene derivetives are important for their extensive biological activities. Recently a great deal of such kinds of compounds were synthesized, which were found to exhibit good activities (Huang et al., 2008; Li et al., 2008; Liu et al., 2008; Shi et al., 2008; Xiao et al., 2008)
Bond lengths in the title compound (Fig.1) are within normal ranges (Allen et al., 1987). The dihedral angle between the C1—C6 and C7—C12 benzene rings is 55.2 (3)°. The O1/O2/C13—C17 plane forms dihedral angles of 21.3 (3)° and 41.0 (3)°, respectively, with C1—C6 and C7—C12 benzene rings. In the crytal structure, O—H···O hydrogen bonds (Table 1) link the molecules into zigzag chains along the b axis (Fig. 2).
Experimental
Equimolar ethyl 3-bromo-2-(4-methoxyphenyl)acrylate and hydroquinone reacted in chloroform overnight, gave the title compound in high yield (88%). Colourless crystals of the title compound were grown by slow evaparation of a methanol solution.
Refinement
H atoms were positioned geometrically (O—H = 0.82 Å and C—H = 0.93 Å) and refined using a riding model, with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(O). In the absence of significant anomalous scattering, Friedel pairs were merged prior to the final refinement.
Figures
Fig. 1.
The molecular structure of the title compound, showing 30% probability displacement ellipsoids and the atom-numbering scheme.
Fig. 2.
The crystal structure of the title compound, viewed along the c axis. Hydrogen bonds are shown as dashed lines.
Crystal data
| C18H18O5 | F000 = 664 |
| Mr = 314.33 | Dx = 1.304 Mg m−3 |
| Orthorhombic, P212121 | Mo Kα radiation λ = 0.71073 Å |
| Hall symbol: P 2ac 2ab | Cell parameters from 1213 reflections |
| a = 7.4773 (16) Å | θ = 3.2–26.1º |
| b = 11.661 (2) Å | µ = 0.10 mm−1 |
| c = 18.417 (4) Å | T = 298 (2) K |
| V = 1605.8 (6) Å3 | Prism, colourless |
| Z = 4 | 0.40 × 0.30 × 0.20 mm |
Data collection
| Bruker SMART CCD area-detector diffractometer | 1822 independent reflections |
| Radiation source: fine-focus sealed tube | 1486 reflections with I > 2σ(I) |
| Monochromator: graphite | Rint = 0.032 |
| T = 298(2) K | θmax = 26.0º |
| φ and ω scans | θmin = 2.1º |
| Absorption correction: multi-scan(SADABS; Bruker, 2001) | h = −9→9 |
| Tmin = 0.963, Tmax = 0.981 | k = −10→14 |
| 5527 measured reflections | l = −22→22 |
Refinement
| 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)] = 0.051 | H-atom parameters constrained |
| wR(F2) = 0.134 | w = 1/[σ2(Fo2) + (0.0689P)2 + 0.4887P] where P = (Fo2 + 2Fc2)/3 |
| S = 1.05 | (Δ/σ)max = 0.001 |
| 1822 reflections | Δρmax = 0.26 e Å−3 |
| 211 parameters | Δρmin = −0.34 e Å−3 |
| Primary atom site location: structure-invariant direct methods | Extinction correction: none |
Special details
| 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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
| x | y | z | Uiso*/Ueq | ||
| C1 | 0.0040 (5) | 0.4964 (3) | 0.73124 (16) | 0.0401 (8) | |
| C2 | 0.0773 (6) | 0.4306 (3) | 0.78656 (17) | 0.0485 (9) | |
| H2 | 0.1463 | 0.3669 | 0.7750 | 0.058* | |
| C3 | 0.0490 (6) | 0.4589 (3) | 0.85909 (18) | 0.0489 (10) | |
| H3 | 0.0990 | 0.4144 | 0.8957 | 0.059* | |
| C4 | −0.0543 (6) | 0.5537 (3) | 0.87635 (17) | 0.0444 (9) | |
| C5 | −0.1311 (5) | 0.6181 (3) | 0.82193 (17) | 0.0454 (9) | |
| H5 | −0.2019 | 0.6810 | 0.8335 | 0.054* | |
| C6 | −0.1024 (5) | 0.5887 (3) | 0.74921 (17) | 0.0471 (9) | |
| H6 | −0.1556 | 0.6319 | 0.7126 | 0.057* | |
| C7 | 0.0419 (5) | 0.6087 (3) | 0.47594 (16) | 0.0370 (7) | |
| C8 | −0.0503 (5) | 0.5959 (3) | 0.41071 (17) | 0.0407 (8) | |
| H8 | −0.0970 | 0.5246 | 0.3984 | 0.049* | |
| C9 | −0.0734 (5) | 0.6872 (3) | 0.36402 (17) | 0.0462 (9) | |
| H9 | −0.1336 | 0.6762 | 0.3204 | 0.055* | |
| C10 | −0.0083 (5) | 0.7946 (3) | 0.38124 (18) | 0.0441 (9) | |
| C11 | 0.0842 (5) | 0.8107 (3) | 0.44550 (19) | 0.0463 (9) | |
| H11 | 0.1287 | 0.8826 | 0.4578 | 0.056* | |
| C12 | 0.1095 (5) | 0.7176 (3) | 0.49137 (19) | 0.0440 (9) | |
| H12 | 0.1741 | 0.7282 | 0.5340 | 0.053* | |
| C13 | 0.0301 (5) | 0.5385 (3) | 0.60130 (17) | 0.0415 (8) | |
| H13 | 0.0000 | 0.6138 | 0.6123 | 0.050* | |
| C14 | 0.0590 (5) | 0.5141 (3) | 0.52943 (17) | 0.0394 (8) | |
| C15 | 0.1049 (5) | 0.3973 (3) | 0.50927 (17) | 0.0397 (8) | |
| C16 | 0.1644 (7) | 0.2682 (3) | 0.41167 (18) | 0.0513 (10) | |
| H16A | 0.0775 | 0.2121 | 0.4281 | 0.062* | |
| H16B | 0.2814 | 0.2462 | 0.4297 | 0.062* | |
| C17 | 0.1658 (6) | 0.2743 (3) | 0.33027 (17) | 0.0549 (10) | |
| H17A | 0.0455 | 0.2826 | 0.3128 | 0.082* | |
| H17B | 0.2170 | 0.2053 | 0.3109 | 0.082* | |
| H17C | 0.2357 | 0.3390 | 0.3150 | 0.082* | |
| C18 | −0.0024 (7) | 0.9941 (3) | 0.3518 (3) | 0.0668 (13) | |
| H18A | −0.0656 | 1.0139 | 0.3954 | 0.100* | |
| H18B | −0.0374 | 1.0450 | 0.3134 | 0.100* | |
| H18C | 0.1239 | 1.0008 | 0.3600 | 0.100* | |
| O5 | 0.0407 (4) | 0.4650 (3) | 0.65807 (14) | 0.0662 (8) | |
| O1 | 0.1315 (4) | 0.3188 (2) | 0.55214 (12) | 0.0541 (7) | |
| O2 | 0.1174 (4) | 0.3810 (2) | 0.43764 (12) | 0.0468 (7) | |
| O3 | −0.0441 (5) | 0.8795 (2) | 0.33197 (14) | 0.0618 (8) | |
| O4 | −0.0756 (5) | 0.5803 (2) | 0.94804 (12) | 0.0601 (8) | |
| H4 | −0.1019 | 0.6483 | 0.9520 | 0.090* |
Atomic displacement parameters (Å2)
| U11 | U22 | U33 | U12 | U13 | U23 | |
| C1 | 0.047 (2) | 0.0446 (17) | 0.0288 (16) | −0.0058 (17) | −0.0002 (15) | −0.0054 (14) |
| C2 | 0.062 (2) | 0.0465 (19) | 0.0373 (17) | −0.003 (2) | 0.0026 (18) | −0.0020 (15) |
| C3 | 0.071 (3) | 0.0439 (18) | 0.0320 (16) | −0.008 (2) | −0.0065 (18) | 0.0043 (15) |
| C4 | 0.060 (2) | 0.0450 (19) | 0.0281 (15) | −0.011 (2) | 0.0040 (16) | −0.0038 (14) |
| C5 | 0.053 (2) | 0.0458 (19) | 0.0379 (18) | 0.0008 (19) | 0.0010 (17) | −0.0091 (16) |
| C6 | 0.054 (2) | 0.056 (2) | 0.0313 (16) | 0.002 (2) | −0.0039 (16) | 0.0043 (16) |
| C7 | 0.0403 (17) | 0.0406 (17) | 0.0302 (15) | −0.0005 (17) | 0.0009 (15) | −0.0029 (14) |
| C8 | 0.046 (2) | 0.0405 (18) | 0.0352 (17) | −0.0062 (17) | −0.0021 (16) | −0.0060 (14) |
| C9 | 0.058 (2) | 0.052 (2) | 0.0282 (15) | −0.004 (2) | −0.0067 (16) | −0.0010 (15) |
| C10 | 0.048 (2) | 0.0461 (19) | 0.0376 (18) | −0.0014 (18) | 0.0041 (17) | −0.0001 (15) |
| C11 | 0.053 (2) | 0.0395 (17) | 0.0464 (19) | −0.0077 (18) | 0.0007 (18) | −0.0043 (16) |
| C12 | 0.045 (2) | 0.049 (2) | 0.0385 (18) | −0.0055 (18) | −0.0048 (17) | −0.0065 (16) |
| C13 | 0.048 (2) | 0.0437 (18) | 0.0329 (16) | 0.0006 (18) | −0.0030 (15) | −0.0030 (15) |
| C14 | 0.0419 (19) | 0.0441 (18) | 0.0321 (16) | −0.0035 (17) | −0.0041 (16) | −0.0026 (14) |
| C15 | 0.048 (2) | 0.0404 (17) | 0.0303 (16) | −0.0023 (18) | 0.0012 (16) | −0.0017 (14) |
| C16 | 0.081 (3) | 0.0400 (19) | 0.0332 (17) | 0.001 (2) | 0.002 (2) | −0.0028 (15) |
| C17 | 0.075 (3) | 0.055 (2) | 0.0348 (18) | −0.005 (2) | 0.0052 (19) | −0.0094 (17) |
| C18 | 0.068 (3) | 0.047 (2) | 0.086 (3) | 0.000 (2) | 0.000 (3) | 0.014 (2) |
| O5 | 0.080 (2) | 0.0751 (18) | 0.0436 (14) | 0.0007 (19) | 0.0009 (15) | −0.0010 (14) |
| O1 | 0.087 (2) | 0.0428 (13) | 0.0328 (12) | 0.0010 (15) | 0.0023 (14) | 0.0029 (11) |
| O2 | 0.0716 (17) | 0.0392 (12) | 0.0296 (11) | 0.0028 (13) | 0.0012 (13) | −0.0037 (10) |
| O3 | 0.092 (2) | 0.0451 (14) | 0.0488 (14) | −0.0026 (16) | −0.0042 (16) | 0.0095 (12) |
| O4 | 0.098 (2) | 0.0527 (15) | 0.0292 (12) | −0.0039 (18) | 0.0073 (14) | −0.0048 (11) |
Geometric parameters (Å, °)
| C1—C6 | 1.379 (5) | C11—C12 | 1.388 (5) |
| C1—C2 | 1.388 (5) | C11—H11 | 0.93 |
| C1—O5 | 1.423 (4) | C12—H12 | 0.93 |
| C2—C3 | 1.392 (5) | C13—O5 | 1.354 (4) |
| C2—H2 | 0.93 | C13—C14 | 1.371 (4) |
| C3—C4 | 1.386 (5) | C13—H13 | 0.93 |
| C3—H3 | 0.93 | C14—C15 | 1.454 (4) |
| C4—O4 | 1.366 (4) | C15—O1 | 1.225 (4) |
| C4—C5 | 1.377 (5) | C15—O2 | 1.336 (4) |
| C5—C6 | 1.399 (5) | C16—O2 | 1.444 (4) |
| C5—H5 | 0.93 | C16—C17 | 1.501 (5) |
| C6—H6 | 0.93 | C16—H16A | 0.97 |
| C7—C8 | 1.393 (5) | C16—H16B | 0.97 |
| C7—C12 | 1.396 (4) | C17—H17A | 0.96 |
| C7—C14 | 1.484 (4) | C17—H17B | 0.96 |
| C8—C9 | 1.379 (5) | C17—H17C | 0.96 |
| C8—H8 | 0.93 | C18—O3 | 1.420 (5) |
| C9—C10 | 1.381 (5) | C18—H18A | 0.96 |
| C9—H9 | 0.93 | C18—H18B | 0.96 |
| C10—O3 | 1.369 (4) | C18—H18C | 0.96 |
| C10—C11 | 1.384 (5) | O4—H4 | 0.82 |
| C6—C1—C2 | 118.9 (3) | C11—C12—H12 | 118.7 |
| C6—C1—O5 | 122.7 (3) | C7—C12—H12 | 118.7 |
| C2—C1—O5 | 118.5 (3) | O5—C13—C14 | 127.3 (3) |
| C1—C2—C3 | 120.9 (4) | O5—C13—H13 | 116.4 |
| C1—C2—H2 | 119.6 | C14—C13—H13 | 116.4 |
| C3—C2—H2 | 119.6 | C13—C14—C15 | 118.5 (3) |
| C4—C3—C2 | 119.6 (3) | C13—C14—C7 | 118.3 (3) |
| C4—C3—H3 | 120.2 | C15—C14—C7 | 123.2 (3) |
| C2—C3—H3 | 120.2 | O1—C15—O2 | 121.3 (3) |
| O4—C4—C5 | 122.1 (3) | O1—C15—C14 | 125.0 (3) |
| O4—C4—C3 | 117.9 (3) | O2—C15—C14 | 113.7 (3) |
| C5—C4—C3 | 120.0 (3) | O2—C16—C17 | 106.8 (3) |
| C4—C5—C6 | 120.0 (3) | O2—C16—H16A | 110.4 |
| C4—C5—H5 | 120.0 | C17—C16—H16A | 110.4 |
| C6—C5—H5 | 120.0 | O2—C16—H16B | 110.4 |
| C1—C6—C5 | 120.6 (3) | C17—C16—H16B | 110.4 |
| C1—C6—H6 | 119.7 | H16A—C16—H16B | 108.6 |
| C5—C6—H6 | 119.7 | C16—C17—H17A | 109.5 |
| C8—C7—C12 | 116.9 (3) | C16—C17—H17B | 109.5 |
| C8—C7—C14 | 122.3 (3) | H17A—C17—H17B | 109.5 |
| C12—C7—C14 | 120.7 (3) | C16—C17—H17C | 109.5 |
| C9—C8—C7 | 121.1 (3) | H17A—C17—H17C | 109.5 |
| C9—C8—H8 | 119.4 | H17B—C17—H17C | 109.5 |
| C7—C8—H8 | 119.4 | O3—C18—H18A | 109.5 |
| C8—C9—C10 | 120.9 (3) | O3—C18—H18B | 109.5 |
| C8—C9—H9 | 119.6 | H18A—C18—H18B | 109.5 |
| C10—C9—H9 | 119.6 | O3—C18—H18C | 109.5 |
| O3—C10—C9 | 115.8 (3) | H18A—C18—H18C | 109.5 |
| O3—C10—C11 | 124.5 (3) | H18B—C18—H18C | 109.5 |
| C9—C10—C11 | 119.7 (3) | C13—O5—C1 | 123.8 (3) |
| C10—C11—C12 | 118.9 (3) | C15—O2—C16 | 118.3 (3) |
| C10—C11—H11 | 120.6 | C10—O3—C18 | 117.8 (3) |
| C12—C11—H11 | 120.6 | C4—O4—H4 | 109.5 |
| C11—C12—C7 | 122.5 (3) | ||
| C6—C1—C2—C3 | −1.9 (6) | C14—C7—C12—C11 | −174.8 (3) |
| O5—C1—C2—C3 | 178.6 (3) | O5—C13—C14—C15 | 0.5 (6) |
| C1—C2—C3—C4 | 0.2 (6) | O5—C13—C14—C7 | −179.4 (3) |
| C2—C3—C4—O4 | −178.4 (4) | C8—C7—C14—C13 | −134.7 (4) |
| C2—C3—C4—C5 | 1.2 (6) | C12—C7—C14—C13 | 41.3 (5) |
| O4—C4—C5—C6 | 178.7 (4) | C8—C7—C14—C15 | 45.3 (5) |
| C3—C4—C5—C6 | −1.0 (6) | C12—C7—C14—C15 | −138.6 (4) |
| C2—C1—C6—C5 | 2.2 (6) | C13—C14—C15—O1 | −4.9 (6) |
| O5—C1—C6—C5 | −178.4 (3) | C7—C14—C15—O1 | 175.0 (4) |
| C4—C5—C6—C1 | −0.7 (6) | C13—C14—C15—O2 | 175.4 (3) |
| C12—C7—C8—C9 | −0.2 (5) | C7—C14—C15—O2 | −4.7 (5) |
| C14—C7—C8—C9 | 176.0 (3) | C14—C13—O5—C1 | −178.3 (4) |
| C7—C8—C9—C10 | −1.1 (6) | C6—C1—O5—C13 | 23.2 (6) |
| C8—C9—C10—O3 | −178.0 (4) | C2—C1—O5—C13 | −157.3 (4) |
| C8—C9—C10—C11 | 1.2 (6) | O1—C15—O2—C16 | −0.4 (6) |
| O3—C10—C11—C12 | 179.1 (4) | C14—C15—O2—C16 | 179.3 (3) |
| C9—C10—C11—C12 | 0.0 (6) | C17—C16—O2—C15 | 179.1 (3) |
| C10—C11—C12—C7 | −1.4 (6) | C9—C10—O3—C18 | 171.3 (4) |
| C8—C7—C12—C11 | 1.5 (6) | C11—C10—O3—C18 | −7.8 (6) |
Hydrogen-bond geometry (Å, °)
| D—H···A | D—H | H···A | D···A | D—H···A |
| O4—H4···O1i | 0.82 | 2.00 | 2.812 (3) | 169 |
Symmetry codes: (i) −x, y+1/2, −z+3/2.
Footnotes
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: CI2693).
References
- Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19.
- Bruker (2001). SADABS Bruker AXS Inc., Madison, Wisconsin, USA.
- Bruker (2007). SMART and SAINT Bruker AXS Inc., Madison, Wisconsin, USA.
- Huang, X.-F., Li, H.-Q., Shi, L., Xue, J.-Y. & Zhu, H.-L. (2008). Chem. Biodiver.5, 636–642. [DOI] [PubMed]
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Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Crystal structure: contains datablocks global, I. DOI: 10.1107/S160053680803571X/ci2693sup1.cif
Structure factors: contains datablocks I. DOI: 10.1107/S160053680803571X/ci2693Isup2.hkl
Additional supplementary materials: crystallographic information; 3D view; checkCIF report


