organic compounds
Ethyl 3-(4-hydroxyphenoxy)-2-(4-methoxyphenyl)acrylate
aDepartment of Chemistry and Chemical Engineering, South-East University, Nanjing 211189, and Nantong Entry-Exit Inspection and Quarantine Bureau, Nantong 226005, People's Republic of China
*Correspondence e-mail: jinhou_jinhou@yahoo.com.cn
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 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
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Refinement
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Data collection: SMART (Bruker, 2007); cell 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.
Supporting information
10.1107/S160053680803571X/ci2693sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053680803571X/ci2693Isup2.hkl
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.
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
Friedel pairs were merged prior to the final refinement.Data collection: SMART (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C18H18O5 | F(000) = 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 = 3.2–26.1° |
b = 11.661 (2) Å | µ = 0.10 mm−1 |
c = 18.417 (4) Å | T = 298 K |
V = 1605.8 (6) Å3 | Prism, colourless |
Z = 4 | 0.40 × 0.30 × 0.20 mm |
Bruker SMART CCD area-detector diffractometer | 1822 independent reflections |
Radiation source: fine-focus sealed tube | 1486 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
ϕ and ω scans | θmax = 26.0°, θmin = 2.1° |
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 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)] = 0.051 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.134 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0689P)2 + 0.4887P] where P = (Fo2 + 2Fc2)/3 |
1822 reflections | (Δ/σ)max = 0.001 |
211 parameters | Δρmax = 0.26 e Å−3 |
0 restraints | Δρmin = −0.34 e Å−3 |
C18H18O5 | V = 1605.8 (6) Å3 |
Mr = 314.33 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 7.4773 (16) Å | µ = 0.10 mm−1 |
b = 11.661 (2) Å | T = 298 K |
c = 18.417 (4) Å | 0.40 × 0.30 × 0.20 mm |
Bruker SMART CCD area-detector diffractometer | 1822 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 1486 reflections with I > 2σ(I) |
Tmin = 0.963, Tmax = 0.981 | Rint = 0.032 |
5527 measured reflections |
R[F2 > 2σ(F2)] = 0.051 | 0 restraints |
wR(F2) = 0.134 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.26 e Å−3 |
1822 reflections | Δρmin = −0.34 e Å−3 |
211 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 | 0.0040 (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* |
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) |
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) |
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) −x, y+1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C18H18O5 |
Mr | 314.33 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 298 |
a, b, c (Å) | 7.4773 (16), 11.661 (2), 18.417 (4) |
V (Å3) | 1605.8 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.40 × 0.30 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.963, 0.981 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5527, 1822, 1486 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.616 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.051, 0.134, 1.05 |
No. of reflections | 1822 |
No. of parameters | 211 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.26, −0.34 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXTL (Sheldrick, 2008).
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) −x, y+1/2, −z+3/2. |
References
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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).