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Acta Crystallogr Sect E Struct Rep Online. 2010 January 1; 66(Pt 1): o4.
Published online 2009 December 4. doi:  10.1107/S1600536809049393
PMCID: PMC2980131

1-(3,4-Dihydroxy­phen­yl)-2-(4-hydroxy­phen­yl)ethanone

Abstract

The title compound, C14H12O4, is a deoxy­benzoin derivative in which the dihedral between the carbonyl group and the catechol unit is 5.99 (3)°. The dihedral angle between the two benzene rings is 60.26 (13)°. In the crystal structure, inter­molecular O—H(...)O hydrogen bonds connect mol­ecules, forming a two-dimensional network. In addition, weak inter­molecular C—H(...)O hydrogen bonds and C—H(...)π contacts further stabilize the crystal structure.

Related literature

For synthetic applications of deoxy­benzoin compounds, see: Xiao et al. (2007a [triangle], 2008a [triangle]). For natural occurences of these compounds. see: Kiuchi et al. (1990 [triangle]); Niwa et al. (1999 [triangle]); Sanduja et al. (1985 [triangle]). For their biological activity, see: Papoutsi et al. (2007 [triangle]); Xiao et al. (2007b [triangle], 2008b [triangle]); Parmar et al. (1996 [triangle]). For a related structure, see: Xiao & Xiao (2008c [triangle]).

An external file that holds a picture, illustration, etc.
Object name is e-66-000o4-scheme1.jpg

Experimental

Crystal data

  • C14H12O4
  • M r = 244.24
  • Triclinic, An external file that holds a picture, illustration, etc.
Object name is e-66-000o4-efi1.jpg
  • a = 5.7073 (11) Å
  • b = 9.3464 (19) Å
  • c = 11.202 (2) Å
  • α = 100.112 (9)°
  • β = 94.792 (9)°
  • γ = 100.625 (9)°
  • V = 573.99 (19) Å3
  • Z = 2
  • Mo Kα radiation
  • μ = 0.10 mm−1
  • T = 296 K
  • 0.30 × 0.20 × 0.20 mm

Data collection

  • Bruker SMART APEX CCD diffractometer
  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996 [triangle]) T min = 0.970, T max = 0.980
  • 3179 measured reflections
  • 2214 independent reflections
  • 1756 reflections with I > 2σ(I)
  • R int = 0.028

Refinement

  • R[F 2 > 2σ(F 2)] = 0.055
  • wR(F 2) = 0.172
  • S = 1.06
  • 2214 reflections
  • 166 parameters
  • H-atom parameters constrained
  • Δρmax = 0.26 e Å−3
  • Δρmin = −0.32 e Å−3

Data collection: SMART (Bruker, 2007 [triangle]); cell refinement: SAINT (Bruker, 2007 [triangle]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 [triangle]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 [triangle]); molecular graphics: SHELXTL (Sheldrick, 2008 [triangle]); software used to prepare material for publication: SHELXL97.

Table 1
Hydrogen-bond geometry (Å, °)

Supplementary Material

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536809049393/lh2957sup1.cif

Structure factors: contains datablocks I. DOI: 10.1107/S1600536809049393/lh2957Isup2.hkl

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

Acknowledgments

This research was supported financially by the Key Laboratory of Plant Resources Conservation and Utilization (Jishou University), College of Hunan Province (grant No. JSK200904) and the Key Laboratory of Hunan Forest Products and Chemical Industry Engineering of Hunan Province (grant No. JDZ200904).

supplementary crystallographic information

Comment

Deoxybenzoin compounds are intermediates in the syntheses of isoflavones (Xiao et al., 2008a; Xiao et al., 2007a) and are found in several plants, such as Glycyrrhiza sp., Trifolium subterraneum and Ononis spinosa, and marine sources (Kiuchi et al., 1990; Niwa et al., 1999; Sanduja et al., 1985). Many deoxybenzoin compounds have shown significant estrogen receptor modulatory, urease inhibitory, antimicrobial and antiviral properties (Papoutsi et al., 2007; Xiao et al., 2007b; Xiao et al., 2008b; Parmar et al., 1996). As part of our work involving the synthesis of a series of deoxybenzoin derivatives for urease inhibitory activity screening we report herein the crystal structure of the title deoxybenzoin derivative (I).

The molecular structure of the title compound is shown in Fig. 1. The two benzene rings form a dihedral angle of 60.26 (13) °. The carbonyl group forms a dihedral angle of 5.99 (3) ° with the catechol moiety [O1/O2/C1-C6] while a similar angle is 1.95 (13)° in our previous related crystal structure (Xiao et al., 2008c). In the crystal structure, intermolecular O—H···O connect molecules to form a two-dimensional network. In addition, weak intermolecular C—H···O hydrogen bonds and C—H···π contacts further stabilize the crystal structure (see Fig. 2).

Experimental

0.55 g (5 mmol) of catechol and 0.76 g (5 mmol) of p-hydroxyphenylacetic acid were dissolved into 10 ml of fresh distilled BF3.Et2O. The mixture was stirred and heated on an oil bath at 353 K for about 3 h. After cooling, the contents were poured into 150 ml of ice-cold aqueous sodium acetate (w % = 10%) with stirring. Then, the precipitate was filtered and washed three times with water. The resulting solid was crystallized from methanol-water to give colorless blocks of (I) suitable for single-crystal structure determination.

Refinement

All H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms with C—H of 0.93 Å for the aromatic atoms, 0.97 Å for the CH2 groups and 0.82 Å for the OH groups. Uiso(H) values were set at 1.2 times Ueq(C) for aromatic C and CH2 groups and 1.5 times Ueq(O) for O—H groups.

Figures

Fig. 1.
Molecular structure of the title compound, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level.
Fig. 2.
Part of the crystal structure of (I) with hydrogen bonds indicated by thin dashed lines and C—H···π contacts shown as thick dashed lines.

Crystal data

C14H12O4Z = 2
Mr = 244.24F(000) = 256
Triclinic, P1Dx = 1.413 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 5.7073 (11) ÅCell parameters from 1785 reflections
b = 9.3464 (19) Åθ = 2.0–26.0°
c = 11.202 (2) ŵ = 0.10 mm1
α = 100.112 (9)°T = 296 K
β = 94.792 (9)°Block, colorless
γ = 100.625 (9)°0.30 × 0.20 × 0.20 mm
V = 573.99 (19) Å3

Data collection

Bruker SMART APEX CCD diffractometer2214 independent reflections
Radiation source: fine-focus sealed tube1756 reflections with I > 2σ(I)
graphiteRint = 0.028
[var phi] and ω scansθmax = 26.0°, θmin = 1.9°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)h = −7→6
Tmin = 0.970, Tmax = 0.980k = −11→6
3179 measured reflectionsl = −13→13

Refinement

Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.055Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.172H-atom parameters constrained
S = 1.06w = 1/[σ2(Fo2) + (0.1062P)2 + 0.1004P] where P = (Fo2 + 2Fc2)/3
2214 reflections(Δ/σ)max < 0.001
166 parametersΔρmax = 0.26 e Å3
0 restraintsΔρmin = −0.31 e Å3

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)

xyzUiso*/Ueq
C10.0231 (3)0.4370 (2)0.17089 (17)0.0357 (4)
C20.2221 (3)0.4285 (2)0.24884 (17)0.0342 (4)
C30.2784 (3)0.5201 (2)0.36129 (17)0.0357 (5)
H30.41230.51400.41200.043*
C40.1374 (3)0.62287 (19)0.40118 (17)0.0335 (4)
C5−0.0606 (3)0.6309 (2)0.32327 (18)0.0364 (5)
H5−0.15610.69860.34800.044*
C6−0.1164 (3)0.5392 (2)0.20949 (18)0.0382 (5)
H6−0.24900.54600.15820.046*
C70.2107 (4)0.7192 (2)0.52317 (18)0.0377 (5)
C80.0779 (4)0.8423 (2)0.56251 (19)0.0434 (5)
H8A0.06030.89420.49560.052*
H8B−0.08210.79770.57690.052*
C90.1937 (3)0.9545 (2)0.67514 (18)0.0376 (5)
C100.4194 (4)1.0415 (2)0.67929 (19)0.0464 (5)
H100.50491.02650.61260.056*
C110.5210 (4)1.1498 (2)0.77965 (19)0.0466 (5)
H110.67301.20700.78020.056*
C120.3970 (3)1.1730 (2)0.87899 (17)0.0375 (5)
C130.1733 (4)1.0874 (2)0.8778 (2)0.0497 (6)
H130.08871.10190.94490.060*
C140.0751 (4)0.9795 (2)0.7761 (2)0.0497 (6)
H14−0.07630.92200.77600.060*
O1−0.0188 (3)0.34464 (17)0.06112 (13)0.0505 (4)
H1−0.15720.33880.03130.076*
O20.3534 (2)0.32578 (15)0.20545 (12)0.0420 (4)
H20.44350.31330.26200.063*
O30.3760 (3)0.70119 (18)0.59031 (14)0.0609 (5)
O40.5023 (3)1.28604 (17)0.97474 (14)0.0507 (4)
H40.42491.28181.03290.076*

Atomic displacement parameters (Å2)

U11U22U33U12U13U23
C10.0337 (10)0.0355 (9)0.0340 (10)0.0061 (7)−0.0017 (7)0.0002 (8)
C20.0314 (10)0.0336 (9)0.0374 (10)0.0096 (7)0.0032 (7)0.0034 (8)
C30.0340 (10)0.0344 (9)0.0373 (10)0.0113 (8)−0.0047 (8)0.0028 (8)
C40.0343 (10)0.0291 (9)0.0366 (10)0.0096 (7)−0.0001 (8)0.0036 (7)
C50.0319 (10)0.0337 (9)0.0433 (11)0.0123 (7)0.0005 (8)0.0028 (8)
C60.0317 (10)0.0392 (10)0.0412 (11)0.0101 (8)−0.0056 (8)0.0027 (8)
C70.0404 (11)0.0330 (9)0.0402 (11)0.0141 (8)−0.0016 (8)0.0045 (8)
C80.0404 (11)0.0383 (10)0.0479 (12)0.0162 (8)−0.0047 (9)−0.0052 (9)
C90.0377 (11)0.0328 (9)0.0413 (11)0.0149 (8)−0.0002 (8)−0.0011 (8)
C100.0429 (12)0.0534 (12)0.0379 (11)0.0079 (9)0.0099 (9)−0.0047 (9)
C110.0358 (11)0.0521 (12)0.0443 (12)0.0021 (9)0.0057 (9)−0.0040 (9)
C120.0379 (11)0.0371 (10)0.0345 (10)0.0116 (8)−0.0008 (8)−0.0030 (8)
C130.0486 (13)0.0489 (12)0.0470 (13)0.0061 (10)0.0174 (10)−0.0046 (10)
C140.0391 (12)0.0420 (11)0.0610 (14)0.0010 (9)0.0114 (10)−0.0039 (10)
O10.0472 (9)0.0560 (9)0.0417 (9)0.0205 (7)−0.0100 (7)−0.0116 (7)
O20.0402 (8)0.0456 (8)0.0390 (8)0.0206 (6)−0.0024 (6)−0.0043 (6)
O30.0755 (12)0.0577 (10)0.0467 (9)0.0401 (8)−0.0243 (8)−0.0110 (7)
O40.0450 (9)0.0559 (9)0.0415 (8)0.0076 (7)0.0011 (6)−0.0119 (7)

Geometric parameters (Å, °)

C1—O11.348 (2)C8—H8B0.9700
C1—C61.388 (3)C9—C141.373 (3)
C1—C21.396 (3)C9—C101.383 (3)
C2—C31.369 (3)C10—C111.378 (3)
C2—O21.372 (2)C10—H100.9300
C3—C41.402 (3)C11—C121.375 (3)
C3—H30.9300C11—H110.9300
C4—C51.390 (2)C12—C131.374 (3)
C4—C71.479 (3)C12—O41.374 (2)
C5—C61.382 (3)C13—C141.382 (3)
C5—H50.9300C13—H130.9300
C6—H60.9300C14—H140.9300
C7—O31.212 (2)O1—H10.8200
C7—C81.514 (3)O2—H20.8200
C8—C91.506 (3)O4—H40.8200
C8—H8A0.9700
O1—C1—C6124.22 (17)C9—C8—H8B108.4
O1—C1—C2116.86 (17)C7—C8—H8B108.4
C6—C1—C2118.92 (17)H8A—C8—H8B107.4
C3—C2—O2123.43 (16)C14—C9—C10117.12 (19)
C3—C2—C1120.35 (17)C14—C9—C8121.34 (19)
O2—C2—C1116.22 (16)C10—C9—C8121.47 (19)
C2—C3—C4121.03 (16)C11—C10—C9121.7 (2)
C2—C3—H3119.5C11—C10—H10119.1
C4—C3—H3119.5C9—C10—H10119.1
C5—C4—C3118.43 (17)C12—C11—C10119.8 (2)
C5—C4—C7123.56 (16)C12—C11—H11120.1
C3—C4—C7118.00 (16)C10—C11—H11120.1
C6—C5—C4120.53 (17)C13—C12—O4122.75 (18)
C6—C5—H5119.7C13—C12—C11119.75 (19)
C4—C5—H5119.7O4—C12—C11117.47 (18)
C5—C6—C1120.75 (17)C12—C13—C14119.4 (2)
C5—C6—H6119.6C12—C13—H13120.3
C1—C6—H6119.6C14—C13—H13120.3
O3—C7—C4120.71 (17)C9—C14—C13122.2 (2)
O3—C7—C8120.36 (18)C9—C14—H14118.9
C4—C7—C8118.93 (15)C13—C14—H14118.9
C9—C8—C7115.66 (16)C1—O1—H1109.5
C9—C8—H8A108.4C2—O2—H2109.5
C7—C8—H8A108.4C12—O4—H4109.5
O1—C1—C2—C3179.11 (17)C3—C4—C7—C8173.33 (18)
C6—C1—C2—C3−0.2 (3)O3—C7—C8—C911.5 (3)
O1—C1—C2—O2−0.5 (3)C4—C7—C8—C9−167.73 (17)
C6—C1—C2—O2−179.76 (17)C7—C8—C9—C14−121.6 (2)
O2—C2—C3—C4−179.83 (17)C7—C8—C9—C1061.4 (3)
C1—C2—C3—C40.6 (3)C14—C9—C10—C11−0.6 (3)
C2—C3—C4—C5−0.6 (3)C8—C9—C10—C11176.50 (18)
C2—C3—C4—C7−179.35 (16)C9—C10—C11—C120.1 (3)
C3—C4—C5—C60.2 (3)C10—C11—C12—C130.4 (3)
C7—C4—C5—C6178.83 (17)C10—C11—C12—O4−177.56 (18)
C4—C5—C6—C10.3 (3)O4—C12—C13—C14177.42 (18)
O1—C1—C6—C5−179.49 (18)C11—C12—C13—C14−0.5 (3)
C2—C1—C6—C5−0.3 (3)C10—C9—C14—C130.6 (3)
C5—C4—C7—O3175.4 (2)C8—C9—C14—C13−176.54 (19)
C3—C4—C7—O3−5.9 (3)C12—C13—C14—C9−0.1 (3)
C5—C4—C7—C8−5.3 (3)

Hydrogen-bond geometry (Å, °)

D—H···AD—HH···AD···AD—H···A
O1—H1···O4i0.821.942.744 (2)168
O2—H2···O3ii0.821.912.7274 (19)171
O4—H4···O2iii0.822.002.772 (2)158
C3—H3···O3ii0.932.533.191 (2)129
C11—H11···Cg1iv0.932.853.635 (2)143

Symmetry codes: (i) x−1, y−1, z−1; (ii) −x+1, −y+1, −z+1; (iii) x, y+1, z+1; (iv) −x+1, −y+2, −z+1.

Footnotes

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LH2957).

References

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