organic compounds
4-(Hydroxymethyl)phenol
aDepartment of Chemistry, State Key Laboratory of Applied Organic Chemistry, College of Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, bState Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China, and cCollege of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
*Correspondence e-mail: liuws@lzu.edu.cn
In the molecule of the title compound, C7H8O2, the phenol O and hydroxymethyl C atoms lie in the ring plane [deviations of −0.015 (3) and and 0.013 (3) Å, respectively]. In the intermolecular O—H⋯O hydrogen bonds link molecules into a network. A weak C—H⋯π interaction is also found.
Related literature
For a related structure, see: Tale et al. (2003). 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, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL and PLATON.
Supporting information
10.1107/S1600536809022466/hk2691sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809022466/hk2691Isup2.hkl
The title compound was prepared by reducing corresponding carboxylic acid using sodium borohydride in THF solution according to a literatue method (Tale et al., 2003). Crystals suitable for X-ray analysis were obtained by slow evaporation of an ethyl acetate solution.
H atoms were positioned geometrically, with O-H = 0.82 Å (for OH) and C-H = 0.93 and 0.97 Å for aromatic and methylene H, respectively, and constrained to ride on their parent atoms, with Uiso(H) = xUeq(C,O), where x = 1.5 for OH H and x = 1.2 for all other H atoms. The
could not be determined reliably, and 605 Friedel pairs were averaged before the last cycle of refinement.Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).C7H8O2 | F(000) = 264 |
Mr = 124.13 | Dx = 1.324 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 1897 reflections |
a = 9.524 (3) Å | θ = 2.8–27.9° |
b = 11.006 (4) Å | µ = 0.10 mm−1 |
c = 5.942 (2) Å | T = 298 K |
V = 622.9 (4) Å3 | Block, colorless |
Z = 4 | 0.65 × 0.62 × 0.55 mm |
Bruker SMART CCD area-detector diffractometer | 1414 independent reflections |
Radiation source: fine-focus sealed tube | 1200 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.036 |
ϕ and ω scans | θmax = 27.8°, θmin = 2.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −12→8 |
Tmin = 0.940, Tmax = 0.949 | k = −14→14 |
3751 measured reflections | l = −7→7 |
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)] = 0.035 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.076 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0125P)2 + 0.2042P] where P = (Fo2 + 2Fc2)/3 |
1414 reflections | (Δ/σ)max < 0.001 |
84 parameters | Δρmax = 0.15 e Å−3 |
1 restraint | Δρmin = −0.17 e Å−3 |
C7H8O2 | V = 622.9 (4) Å3 |
Mr = 124.13 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 9.524 (3) Å | µ = 0.10 mm−1 |
b = 11.006 (4) Å | T = 298 K |
c = 5.942 (2) Å | 0.65 × 0.62 × 0.55 mm |
Bruker SMART CCD area-detector diffractometer | 1414 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1200 reflections with I > 2σ(I) |
Tmin = 0.940, Tmax = 0.949 | Rint = 0.036 |
3751 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 1 restraint |
wR(F2) = 0.076 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.15 e Å−3 |
1414 reflections | Δρmin = −0.17 e Å−3 |
84 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 | ||
O1 | 0.65915 (14) | 0.47478 (11) | 0.5585 (2) | 0.0477 (3) | |
H1 | 0.6206 | 0.5344 | 0.5036 | 0.072* | |
O2 | 0.99603 (14) | 0.15137 (10) | −0.1224 (3) | 0.0470 (3) | |
H2 | 1.0542 | 0.1183 | −0.2037 | 0.071* | |
C1 | 1.05125 (18) | 0.26412 (15) | −0.0417 (3) | 0.0422 (4) | |
H1A | 1.0696 | 0.3180 | −0.1675 | 0.051* | |
H1B | 1.1391 | 0.2500 | 0.0366 | 0.051* | |
C2 | 0.94754 (17) | 0.32168 (14) | 0.1149 (3) | 0.0351 (4) | |
C3 | 0.87551 (17) | 0.42678 (14) | 0.0552 (3) | 0.0367 (4) | |
H3 | 0.8929 | 0.4626 | −0.0838 | 0.044* | |
C4 | 0.77818 (18) | 0.47925 (15) | 0.1993 (3) | 0.0356 (4) | |
H4 | 0.7304 | 0.5492 | 0.1563 | 0.043* | |
C5 | 0.75251 (16) | 0.42727 (13) | 0.4065 (3) | 0.0349 (4) | |
C6 | 0.82324 (18) | 0.32200 (15) | 0.4694 (3) | 0.0406 (4) | |
H6 | 0.8058 | 0.2864 | 0.6086 | 0.049* | |
C7 | 0.91947 (18) | 0.27084 (15) | 0.3239 (3) | 0.0411 (4) | |
H7 | 0.9666 | 0.2006 | 0.3668 | 0.049* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0571 (8) | 0.0424 (7) | 0.0437 (8) | 0.0143 (6) | 0.0121 (7) | 0.0079 (6) |
O2 | 0.0487 (7) | 0.0391 (6) | 0.0532 (8) | −0.0069 (6) | 0.0148 (6) | −0.0085 (6) |
C1 | 0.0361 (9) | 0.0379 (8) | 0.0526 (11) | −0.0041 (7) | 0.0067 (8) | −0.0032 (9) |
C2 | 0.0326 (8) | 0.0322 (8) | 0.0404 (10) | −0.0045 (7) | −0.0004 (7) | −0.0027 (7) |
C3 | 0.0432 (9) | 0.0326 (8) | 0.0345 (9) | −0.0051 (7) | 0.0014 (8) | 0.0037 (8) |
C4 | 0.0412 (9) | 0.0277 (7) | 0.0381 (10) | 0.0003 (7) | −0.0028 (8) | 0.0030 (7) |
C5 | 0.0365 (8) | 0.0308 (7) | 0.0374 (9) | 0.0000 (6) | −0.0008 (7) | −0.0008 (7) |
C6 | 0.0475 (10) | 0.0382 (9) | 0.0362 (9) | 0.0035 (8) | 0.0012 (8) | 0.0088 (7) |
C7 | 0.0425 (9) | 0.0353 (8) | 0.0454 (10) | 0.0079 (7) | −0.0023 (8) | 0.0035 (8) |
O1—H1 | 0.8200 | C3—H3 | 0.9300 |
O2—H2 | 0.8200 | C4—C5 | 1.380 (2) |
C1—O2 | 1.430 (2) | C4—H4 | 0.9300 |
C1—C2 | 1.498 (2) | C5—O1 | 1.371 (2) |
C1—H1A | 0.9700 | C5—C6 | 1.391 (2) |
C1—H1B | 0.9700 | C6—C7 | 1.380 (3) |
C2—C7 | 1.388 (3) | C6—H6 | 0.9300 |
C2—C3 | 1.391 (2) | C7—H7 | 0.9300 |
C3—C4 | 1.388 (2) | ||
C5—O1—H1 | 109.5 | C2—C3—H3 | 119.4 |
C1—O2—H2 | 109.5 | C5—C4—C3 | 119.76 (15) |
O2—C1—C2 | 109.44 (13) | C5—C4—H4 | 120.1 |
O2—C1—H1A | 109.8 | C3—C4—H4 | 120.1 |
C2—C1—H1A | 109.8 | O1—C5—C4 | 123.00 (14) |
O2—C1—H1B | 109.8 | O1—C5—C6 | 117.03 (16) |
C2—C1—H1B | 109.8 | C4—C5—C6 | 119.96 (16) |
H1A—C1—H1B | 108.2 | C7—C6—C5 | 119.52 (17) |
C7—C2—C3 | 117.92 (16) | C7—C6—H6 | 120.2 |
C7—C2—C1 | 120.83 (15) | C5—C6—H6 | 120.2 |
C3—C2—C1 | 121.25 (16) | C6—C7—C2 | 121.61 (16) |
C4—C3—C2 | 121.22 (17) | C6—C7—H7 | 119.2 |
C4—C3—H3 | 119.4 | C2—C7—H7 | 119.2 |
O2—C1—C2—C7 | 68.9 (2) | C3—C4—C5—C6 | −0.6 (2) |
O2—C1—C2—C3 | −110.49 (18) | O1—C5—C6—C7 | −179.38 (16) |
C7—C2—C3—C4 | −0.2 (2) | C4—C5—C6—C7 | 0.4 (3) |
C1—C2—C3—C4 | 179.21 (16) | C5—C6—C7—C2 | −0.2 (3) |
C2—C3—C4—C5 | 0.5 (2) | C3—C2—C7—C6 | 0.1 (3) |
C3—C4—C5—O1 | 179.21 (15) | C1—C2—C7—C6 | −179.37 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.82 | 1.86 | 2.668 (3) | 169 |
O2—H2···O1ii | 0.82 | 2.01 | 2.817 (3) | 167 |
C1—H1B···Cg1iii | 0.97 | 2.77 | 3.694 (3) | 159 |
Symmetry codes: (i) −x+3/2, y+1/2, z+1/2; (ii) x+1/2, −y+1/2, z−1; (iii) −x+1/2, y+1/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C7H8O2 |
Mr | 124.13 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 298 |
a, b, c (Å) | 9.524 (3), 11.006 (4), 5.942 (2) |
V (Å3) | 622.9 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.65 × 0.62 × 0.55 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.940, 0.949 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3751, 1414, 1200 |
Rint | 0.036 |
(sin θ/λ)max (Å−1) | 0.656 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.076, 1.00 |
No. of reflections | 1414 |
No. of parameters | 84 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.15, −0.17 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2i | 0.82 | 1.86 | 2.668 (3) | 169 |
O2—H2···O1ii | 0.82 | 2.01 | 2.817 (3) | 167 |
C1—H1B···Cg1iii | 0.97 | 2.77 | 3.694 (3) | 159 |
Symmetry codes: (i) −x+3/2, y+1/2, z+1/2; (ii) x+1/2, −y+1/2, z−1; (iii) −x+1/2, y+1/2, z+1/2. |
Acknowledgements
The authors thank the National Natural Science Foundation of China (grant Nos. 20771048 and 20621091) for financial support.
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. CrossRef Web of Science Google Scholar
Bruker (2000). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. 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
Tale, R.-H., Patil, K.-M. & Dapurkar, S.-E. (2003). Tetrahedron Lett. 44, 3427–3428. Web of Science CrossRef CAS 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.
The reduction of carboxylic acids to alcohols is a key synthetic transformation in organic chemistry. There are several ways to bring about this transformation. It is conventionally carried out using sodium borohydride as a reducing agent. We report herein the crystal structure of the title compound.
In the molecule of the title compound (Fig 1), the bond lengths (Allen et al., 1987) and angles are within normal ranges. Ring A (C2-C7) is, of course, planar. Atoms O1, O2 and C1 are -0.015 (3), 1.279 (3) and 0.013 (3) Å away from the ring plane, respectively.
In the crystal structure, intermolecular O-H···O hydrogen bonds (Table 1) link the molecules into a network, in which they may be effective in the stabilization of the structure. There also exists a weak C—H···π interaction (Table 1).