organic compounds
(5-n-Hexyl-2-hydroxymethyl-1,3-dioxan-2-yl)methanol
aDepartment of Biology and Chemistry, Hunan University of Science and Engineering, Yongzhou Hunan 425100, People's Republic of China, and bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: seikweng@um.edu.my
In the title compound, C12H24O4, the dioxane ring adopts a chair conformation; the n-hexyl chain, which occupies an equatorial position, has an extended zigzag conformation. In the crystal, molecules are connected by O—H⋯O hydrogen-bonds into a zigzag chain running along the b axis, giving rise to a herringbone pattern.
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: SMART (Bruker, 2003); cell SAINT (Bruker, 2003); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536810041401/bt5377sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810041401/bt5377Isup2.hkl
2,2-Bis(hydroxymethyl)-1,3-propanediol (13.0 g, 96 mmol) and N,N-dimethylformamide (100 ml) were heated until the 2,2-bis(hydroxymethyl)-1,3-propanediol dissolved completely. n-Heptanal (10.1 g, 89 mmol) and p-toluenesulfonic acid monohydrate (1 g, 5 mmol) were added. The solution was heated 363–373 K 5 h. The solution was cooled and ethyl acetate (100 ml) was added to dissolve the residue after DMF was removed by evaporation. The solution was washed successively with water and 5% sodium bicarbonate (50 ml); the solution was dried over sodium sulfate. The solvent was evaporated to give a solid that was recrystallized from ethyl acetate to yield 16.5 g (70%) of colorless crystals.
Carbon-bound H-atoms were placed in calculated positions (C—H 0.95–0.99 Å) and were included in the
in the riding model approximation, with Uiso(H) set to 1.2–1.5Ueq(C).The hydroxy H-atoms were located in a difference Fourier map, and were refined isotropically with a distance restraint of O–H 0.84±0.01 Å.
A previous study reported the
of 5,5-bis(hydroxylmethyl)-2-phenylmethyl-1,3-dioxane, which was synthesized by the condensation of 2,2-bis(hydroxymethyl)-1,3-propanediol and an aromatic aldehyde (benzaldehyde) (Luo et al., 2008). A variation of the synthesis with an aliphatic aldehyde under similar reaction conditions yielded a 1,3-dixoxane having the hydroxyl groups connected to another atom of the chair-shaped ring. In the molecule of the C12H24O4 (Scheme I, Fig. 1), the n-hexyl chain, which occupies an equatorial position, has an extended zigzag conformation. The hydroxy unit of one molecule is a hydrogen-bond donor to the hydroxy unit of an adjacent molecule so that the two O–H···O hydrogen bonds give rise to a herring-bone ribbon that runs along the b-axis of the monoclinic (Fig. 2).For a related structure, see: Luo et al. (2008).
Data collection: SMART (Bruker, 2003); cell
SAINT (Bruker, 2003); data reduction: SAINT (Bruker, 2003); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).C12H24O4 | F(000) = 512 |
Mr = 232.31 | Dx = 1.169 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 2106 reflections |
a = 13.6602 (10) Å | θ = 2.5–27.0° |
b = 5.9370 (5) Å | µ = 0.09 mm−1 |
c = 16.4268 (12) Å | T = 173 K |
β = 97.737 (1)° | Prism, colorless |
V = 1320.10 (18) Å3 | 0.40 × 0.25 × 0.20 mm |
Z = 4 |
Bruker SMART APEX diffractometer | 1755 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.041 |
Graphite monochromator | θmax = 27.1°, θmin = 1.8° |
ω scans | h = −17→17 |
7438 measured reflections | k = −7→7 |
2862 independent reflections | l = −20→14 |
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)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.173 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0932P)2] where P = (Fo2 + 2Fc2)/3 |
2862 reflections | (Δ/σ)max = 0.001 |
154 parameters | Δρmax = 0.32 e Å−3 |
2 restraints | Δρmin = −0.24 e Å−3 |
C12H24O4 | V = 1320.10 (18) Å3 |
Mr = 232.31 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 13.6602 (10) Å | µ = 0.09 mm−1 |
b = 5.9370 (5) Å | T = 173 K |
c = 16.4268 (12) Å | 0.40 × 0.25 × 0.20 mm |
β = 97.737 (1)° |
Bruker SMART APEX diffractometer | 1755 reflections with I > 2σ(I) |
7438 measured reflections | Rint = 0.041 |
2862 independent reflections |
R[F2 > 2σ(F2)] = 0.056 | 2 restraints |
wR(F2) = 0.173 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.32 e Å−3 |
2862 reflections | Δρmin = −0.24 e Å−3 |
154 parameters |
x | y | z | Uiso*/Ueq | ||
O1 | 0.21236 (8) | 1.1104 (2) | 0.46544 (7) | 0.0274 (3) | |
O2 | 0.08583 (9) | 1.3743 (2) | 0.45699 (9) | 0.0449 (4) | |
O3 | 0.25706 (13) | 1.7500 (2) | 0.65335 (8) | 0.0449 (4) | |
H3 | 0.2562 (18) | 1.699 (4) | 0.7006 (8) | 0.063 (8)* | |
O4 | 0.24968 (15) | 1.1821 (2) | 0.68721 (8) | 0.0551 (5) | |
H4 | 0.257 (2) | 1.051 (2) | 0.6681 (16) | 0.083 (9)* | |
C1 | 0.22572 (13) | 1.4192 (3) | 0.56451 (10) | 0.0259 (4) | |
C2 | 0.29973 (15) | 1.5895 (3) | 0.60499 (12) | 0.0358 (5) | |
H2A | 0.3529 | 1.5084 | 0.6402 | 0.043* | |
H2B | 0.3302 | 1.6693 | 0.5618 | 0.043* | |
C3 | 0.17790 (16) | 1.2926 (3) | 0.62952 (12) | 0.0390 (5) | |
H3A | 0.1398 | 1.3998 | 0.6590 | 0.047* | |
H3B | 0.1313 | 1.1794 | 0.6024 | 0.047* | |
C4 | 0.14640 (15) | 1.5360 (3) | 0.50544 (12) | 0.0387 (5) | |
H4A | 0.1046 | 1.6292 | 0.5369 | 0.046* | |
H4B | 0.1780 | 1.6370 | 0.4687 | 0.046* | |
C5 | 0.27918 (13) | 1.2561 (3) | 0.51385 (11) | 0.0275 (4) | |
H5A | 0.3173 | 1.3429 | 0.4774 | 0.033* | |
H5B | 0.3264 | 1.1648 | 0.5512 | 0.033* | |
C6 | 0.14157 (13) | 1.2334 (3) | 0.41238 (11) | 0.0321 (5) | |
H6 | 0.1756 | 1.3257 | 0.3737 | 0.039* | |
C7 | 0.07331 (14) | 1.0673 (4) | 0.36474 (12) | 0.0391 (5) | |
H7A | 0.0179 | 1.1508 | 0.3333 | 0.047* | |
H7B | 0.0452 | 0.9678 | 0.4040 | 0.047* | |
C8 | 0.12197 (14) | 0.9224 (3) | 0.30569 (12) | 0.0342 (5) | |
H8A | 0.1780 | 0.8402 | 0.3368 | 0.041* | |
H8B | 0.1489 | 1.0211 | 0.2655 | 0.041* | |
C9 | 0.05174 (14) | 0.7536 (4) | 0.25968 (13) | 0.0393 (5) | |
H9A | 0.0248 | 0.6562 | 0.3002 | 0.047* | |
H9B | −0.0043 | 0.8368 | 0.2290 | 0.047* | |
C10 | 0.09718 (14) | 0.6053 (4) | 0.20005 (11) | 0.0355 (5) | |
H10A | 0.1277 | 0.7026 | 0.1615 | 0.043* | |
H10B | 0.1505 | 0.5148 | 0.2311 | 0.043* | |
C11 | 0.02531 (15) | 0.4480 (4) | 0.15108 (14) | 0.0457 (6) | |
H11A | −0.0268 | 0.5389 | 0.1186 | 0.055* | |
H11B | −0.0069 | 0.3545 | 0.1897 | 0.055* | |
C12 | 0.07088 (17) | 0.2939 (4) | 0.09337 (13) | 0.0473 (6) | |
H12A | 0.1047 | 0.3843 | 0.0558 | 0.071* | |
H12B | 0.0189 | 0.2039 | 0.0617 | 0.071* | |
H12C | 0.1185 | 0.1936 | 0.1252 | 0.071* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0304 (7) | 0.0258 (7) | 0.0243 (6) | 0.0012 (5) | −0.0030 (5) | −0.0047 (5) |
O2 | 0.0375 (8) | 0.0450 (9) | 0.0482 (9) | 0.0139 (7) | −0.0091 (7) | −0.0197 (7) |
O3 | 0.0890 (12) | 0.0223 (7) | 0.0231 (7) | −0.0018 (7) | 0.0063 (8) | −0.0032 (6) |
O4 | 0.1172 (14) | 0.0244 (8) | 0.0241 (7) | −0.0002 (9) | 0.0109 (8) | 0.0009 (6) |
C1 | 0.0359 (10) | 0.0209 (9) | 0.0211 (9) | −0.0008 (7) | 0.0041 (7) | −0.0013 (7) |
C2 | 0.0487 (12) | 0.0298 (11) | 0.0290 (10) | −0.0094 (9) | 0.0054 (9) | −0.0058 (8) |
C3 | 0.0559 (13) | 0.0301 (11) | 0.0349 (11) | −0.0091 (9) | 0.0200 (10) | −0.0060 (8) |
C4 | 0.0477 (12) | 0.0305 (11) | 0.0352 (11) | 0.0093 (9) | −0.0046 (9) | −0.0078 (8) |
C5 | 0.0278 (9) | 0.0316 (10) | 0.0221 (9) | −0.0014 (7) | −0.0002 (7) | −0.0045 (7) |
C6 | 0.0344 (10) | 0.0338 (11) | 0.0259 (10) | 0.0041 (8) | −0.0038 (8) | −0.0051 (8) |
C7 | 0.0301 (10) | 0.0468 (13) | 0.0373 (11) | 0.0054 (9) | −0.0064 (9) | −0.0119 (9) |
C8 | 0.0335 (10) | 0.0400 (12) | 0.0269 (9) | −0.0021 (9) | −0.0034 (8) | −0.0051 (8) |
C9 | 0.0288 (10) | 0.0498 (13) | 0.0364 (11) | 0.0018 (9) | −0.0059 (9) | −0.0127 (9) |
C10 | 0.0338 (10) | 0.0437 (12) | 0.0282 (10) | −0.0045 (9) | 0.0014 (8) | −0.0039 (9) |
C11 | 0.0353 (11) | 0.0528 (14) | 0.0464 (12) | −0.0015 (10) | −0.0035 (9) | −0.0196 (10) |
C12 | 0.0541 (13) | 0.0490 (14) | 0.0388 (12) | −0.0057 (11) | 0.0059 (11) | −0.0131 (10) |
O1—C6 | 1.415 (2) | C6—C7 | 1.503 (3) |
O1—C5 | 1.421 (2) | C6—H6 | 1.0000 |
O2—C6 | 1.403 (2) | C7—C8 | 1.516 (3) |
O2—C4 | 1.436 (2) | C7—H7A | 0.9900 |
O3—C2 | 1.415 (2) | C7—H7B | 0.9900 |
O3—H3 | 0.84 (1) | C8—C9 | 1.517 (3) |
O4—C3 | 1.428 (3) | C8—H8A | 0.9900 |
O4—H4 | 0.85 (1) | C8—H8B | 0.9900 |
C1—C2 | 1.519 (2) | C9—C10 | 1.511 (3) |
C1—C4 | 1.521 (3) | C9—H9A | 0.9900 |
C1—C3 | 1.523 (2) | C9—H9B | 0.9900 |
C1—C5 | 1.525 (2) | C10—C11 | 1.507 (3) |
C2—H2A | 0.9900 | C10—H10A | 0.9900 |
C2—H2B | 0.9900 | C10—H10B | 0.9900 |
C3—H3A | 0.9900 | C11—C12 | 1.510 (3) |
C3—H3B | 0.9900 | C11—H11A | 0.9900 |
C4—H4A | 0.9900 | C11—H11B | 0.9900 |
C4—H4B | 0.9900 | C12—H12A | 0.9800 |
C5—H5A | 0.9900 | C12—H12B | 0.9800 |
C5—H5B | 0.9900 | C12—H12C | 0.9800 |
C6—O1—C5 | 111.39 (13) | O1—C6—H6 | 109.7 |
C6—O2—C4 | 112.06 (13) | C7—C6—H6 | 109.7 |
C2—O3—H3 | 109.7 (18) | C6—C7—C8 | 114.28 (15) |
C3—O4—H4 | 106.1 (19) | C6—C7—H7A | 108.7 |
C2—C1—C4 | 110.53 (16) | C8—C7—H7A | 108.7 |
C2—C1—C3 | 110.16 (14) | C6—C7—H7B | 108.7 |
C4—C1—C3 | 109.65 (15) | C8—C7—H7B | 108.7 |
C2—C1—C5 | 108.80 (14) | H7A—C7—H7B | 107.6 |
C4—C1—C5 | 107.08 (14) | C7—C8—C9 | 113.05 (16) |
C3—C1—C5 | 110.57 (15) | C7—C8—H8A | 109.0 |
O3—C2—C1 | 113.19 (15) | C9—C8—H8A | 109.0 |
O3—C2—H2A | 108.9 | C7—C8—H8B | 109.0 |
C1—C2—H2A | 108.9 | C9—C8—H8B | 109.0 |
O3—C2—H2B | 108.9 | H8A—C8—H8B | 107.8 |
C1—C2—H2B | 108.9 | C10—C9—C8 | 114.86 (16) |
H2A—C2—H2B | 107.8 | C10—C9—H9A | 108.6 |
O4—C3—C1 | 111.78 (16) | C8—C9—H9A | 108.6 |
O4—C3—H3A | 109.3 | C10—C9—H9B | 108.6 |
C1—C3—H3A | 109.3 | C8—C9—H9B | 108.6 |
O4—C3—H3B | 109.3 | H9A—C9—H9B | 107.5 |
C1—C3—H3B | 109.3 | C11—C10—C9 | 114.35 (16) |
H3A—C3—H3B | 107.9 | C11—C10—H10A | 108.7 |
O2—C4—C1 | 110.89 (15) | C9—C10—H10A | 108.7 |
O2—C4—H4A | 109.5 | C11—C10—H10B | 108.7 |
C1—C4—H4A | 109.5 | C9—C10—H10B | 108.7 |
O2—C4—H4B | 109.5 | H10A—C10—H10B | 107.6 |
C1—C4—H4B | 109.5 | C10—C11—C12 | 114.61 (17) |
H4A—C4—H4B | 108.0 | C10—C11—H11A | 108.6 |
O1—C5—C1 | 111.91 (13) | C12—C11—H11A | 108.6 |
O1—C5—H5A | 109.2 | C10—C11—H11B | 108.6 |
C1—C5—H5A | 109.2 | C12—C11—H11B | 108.6 |
O1—C5—H5B | 109.2 | H11A—C11—H11B | 107.6 |
C1—C5—H5B | 109.2 | C11—C12—H12A | 109.5 |
H5A—C5—H5B | 107.9 | C11—C12—H12B | 109.5 |
O2—C6—O1 | 111.11 (14) | H12A—C12—H12B | 109.5 |
O2—C6—C7 | 108.74 (14) | C11—C12—H12C | 109.5 |
O1—C6—C7 | 107.86 (15) | H12A—C12—H12C | 109.5 |
O2—C6—H6 | 109.7 | H12B—C12—H12C | 109.5 |
C4—C1—C2—O3 | 62.40 (19) | C4—C1—C5—O1 | −52.67 (19) |
C3—C1—C2—O3 | −58.9 (2) | C3—C1—C5—O1 | 66.74 (19) |
C5—C1—C2—O3 | 179.70 (15) | C4—O2—C6—O1 | 60.4 (2) |
C2—C1—C3—O4 | −57.4 (2) | C4—O2—C6—C7 | 179.00 (16) |
C4—C1—C3—O4 | −179.27 (15) | C5—O1—C6—O2 | −60.02 (18) |
C5—C1—C3—O4 | 62.89 (19) | C5—O1—C6—C7 | −179.11 (14) |
C6—O2—C4—C1 | −57.7 (2) | O2—C6—C7—C8 | 173.00 (17) |
C2—C1—C4—O2 | 170.43 (14) | O1—C6—C7—C8 | −66.4 (2) |
C3—C1—C4—O2 | −67.93 (19) | C6—C7—C8—C9 | 178.94 (17) |
C5—C1—C4—O2 | 52.08 (19) | C7—C8—C9—C10 | 180.00 (18) |
C6—O1—C5—C1 | 57.40 (18) | C8—C9—C10—C11 | −176.53 (18) |
C2—C1—C5—O1 | −172.15 (14) | C9—C10—C11—C12 | −178.08 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O4i | 0.84 (1) | 1.86 (1) | 2.664 (2) | 162 (3) |
O4—H4···O3ii | 0.85 (1) | 1.81 (1) | 2.630 (2) | 164 (3) |
Symmetry codes: (i) −x+1/2, y+1/2, −z+3/2; (ii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C12H24O4 |
Mr | 232.31 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 173 |
a, b, c (Å) | 13.6602 (10), 5.9370 (5), 16.4268 (12) |
β (°) | 97.737 (1) |
V (Å3) | 1320.10 (18) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.40 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART APEX |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7438, 2862, 1755 |
Rint | 0.041 |
(sin θ/λ)max (Å−1) | 0.642 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.173, 1.06 |
No. of reflections | 2862 |
No. of parameters | 154 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.32, −0.24 |
Computer programs: SMART (Bruker, 2003), SAINT (Bruker, 2003), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O4i | 0.84 (1) | 1.86 (1) | 2.664 (2) | 162 (3) |
O4—H4···O3ii | 0.85 (1) | 1.81 (1) | 2.630 (2) | 164 (3) |
Symmetry codes: (i) −x+1/2, y+1/2, −z+3/2; (ii) x, y−1, z. |
Acknowledgements
We thank the S&T Technology Planning Project of Hunan Province (No. 2010 N K3007), the Key Scientific Research Project of Hunan Provincial Education Department (No. 08 A023), the NSF of Hunan Province (09 J J3028), the Key Construction Project of Hunan Province (No. 2000–180) and the University of Malaya for supporting this study.
References
Barbour, L. J. (2001). J. Supramol. Chem. 1, 189–191. CrossRef CAS Google Scholar
Bruker (2003). SAINT and SMART. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Luo, Y.-M., Liu, X.-M., Yuan, X.-Y., Zhang, M. & Ng, S. W. (2008). Acta Cryst. E64, o1536. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals Google Scholar
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A previous study reported the crystal structure of 5,5-bis(hydroxylmethyl)-2-phenylmethyl-1,3-dioxane, which was synthesized by the condensation of 2,2-bis(hydroxymethyl)-1,3-propanediol and an aromatic aldehyde (benzaldehyde) (Luo et al., 2008). A variation of the synthesis with an aliphatic aldehyde under similar reaction conditions yielded a 1,3-dixoxane having the hydroxyl groups connected to another atom of the chair-shaped ring. In the molecule of the C12H24O4 (Scheme I, Fig. 1), the n-hexyl chain, which occupies an equatorial position, has an extended zigzag conformation. The hydroxy unit of one molecule is a hydrogen-bond donor to the hydroxy unit of an adjacent molecule so that the two O–H···O hydrogen bonds give rise to a herring-bone ribbon that runs along the b-axis of the monoclinic unit cell (Fig. 2).