organic compounds
2,4-Dichloro-6-(piperidin-1-ylmethyl)phenol
aDivision of Natural Science, Osaka Kyoiku University, Kashiwara, Osaka 582-8582, Japan, bDepartment of Chemistry and Biology Engineering, Fukui National College of Technology, Sabae, Fukui 916-8507, Japan, and cDivision of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Japan
*Correspondence e-mail: kubono@cc.osaka-kyoiku.ac.jp
In the title compound, C12H15Cl2NO, the piperidine ring adopts a chair conformation. An intramolecular O—H⋯N hydrogen bond is observed. The packing of the molecules in the is stabilized by π–π interactions and Cl⋯Cl contacts.
Comment
The pharmacological properties of piperidine derivatives have led to many studies of the design and synthesis of these compounds (Hu et al., 2002; Walker et al., 2005). In addition, a number of these derivatives can act as complexing reagents with metal ions. We have previously studied the application of aminophenol derivatives as ion size recognition reagents (Hirayama et al., 2001), and in this work, describe the of 2,4-dichloro-6-(piperidin-1-ylmethyl)phenol, (I), which would be expected to act as an effective chelating reagent.
Compound (I) crystallizes in the monoclinic P21/c, with one molecule in the The bond lengths and angles observed in the piperidylmethyl group are all in the normal ranges and comparable with those of other related compounds (Deng et al., 2001; Yuan et al., 2004). The piperidine ring adopts the usual chair conformation. The torsion angles C1—C6—C7—N1 and C5—C6—C7—N1 are 44.20 (18) and −139.28 (14)°, respectively. There is an intramolecular O—H⋯N hydrogen bond (Table 2).
In the i [symmetry code: (i) −x, −y, −z]. In addition, weak intermolecular Cl⋯Cl contacts are observed. The contact distances Cl1⋯Cl1ii and Cl1⋯Cl2iii are 3.4596 (6) and 3.5734 (6) Å, respectively [symmetry code: (ii) −x, −y, 1 − z; (iii) x, − − y, + z]. The packing of the molecules in the is stabilized by π–π interactions and Cl⋯Cl contacts between dichlorobenzene groups.
the shortest intermolecular C⋯C contact distance is 3.533 (2) Å for C4⋯C6Experimental
Compound (I) was prepared by the Mannich reaction. 2,4-Dichlorophenol (6.52 g, 40 mmol), piperidine (3.41 g, 40 mmol) and paraformaldehyde (1.20 g, 40 mmol) in methanol (80 ml) were refluxed for 6 h. The mixture was cooled to room temperature, then the solvent was evaporated under vacuum. The resulting oil was extracted with chloroform and evaporated to yield a solid. The product was recrystallized from methanol to give colourless crystals suitable for X-ray analysis. Yield 52.6%; m.p. 335.0–335.4 K. Analysis calculated for C12H15Cl2NO: C 55.40, H 5.81, N 5.38%; found: C 55.49, H 5.87, N 5.37%. 1H NMR (CDCl3, p.p.m., 400 MHz): 1.46–1.69 (m, 6H, CH2), 2.53 (brs, 4H, CH2), 3.65 (s, 2H, CH2), 6.85 (d, J = 2.5 Hz, 1H, ArH), 7.24 (d, J = 2.5 Hz, 1H, ArH), 10.2 (brs, 1H, OH).
Crystal data
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Data collection
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Refinement
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The H atom of the hydroxyl group was found in a difference Fourier map. The other H atoms were placed in idealized positions with C—H = 0.95 Å. All the H atoms were refined as riding, with Uiso(H) = 1.2Ueq(C).
Data collection: WinAFC (Rigaku/MSC, 2004); cell WinAFC; data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: CRYSTALS (Betteridge et al., 2003); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: CrystalStructure.
Supporting information
https://doi.org/10.1107/S1600536805032290/hg6252sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536805032290/hg6252Isup2.hkl
Data collection: WinAFC (Rigaku/MSC, 2004); cell
WinAFC; data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: CRYSTALS (Betteridge et al., 2003); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: CrystalStructure.C12H15Cl2NO | F(000) = 544.00 |
Mr = 260.15 | Dx = 1.356 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71069 Å |
Hall symbol: -P 2ybc | Cell parameters from 25 reflections |
a = 9.571 (4) Å | θ = 15.5–17.1° |
b = 11.794 (4) Å | µ = 0.49 mm−1 |
c = 11.345 (5) Å | T = 298 K |
β = 95.89 (3)° | Prism, colorless |
V = 1273.9 (9) Å3 | 0.50 × 0.20 × 0.20 mm |
Z = 4 |
Rigaku AFC-7R diffractometer | θmax = 27.5° |
ω–2θ scans | h = −12→12 |
3619 measured reflections | k = −15→0 |
2937 independent reflections | l = −8→14 |
2773 reflections with F2 > 2σ(F2) | 3 standard reflections every 150 reflections |
Rint = 0.026 | intensity decay: 2.4% |
Refinement on F2 | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.039 | w = 1/[0.0034Fo2 + 1σ(Fo2)]/(4Fo2) |
wR(F2) = 0.133 | (Δ/σ)max < 0.001 |
S = 1.01 | Δρmax = 0.29 e Å−3 |
2776 reflections | Δρmin = −0.52 e Å−3 |
160 parameters |
Geometry. ENTER SPECIAL DETAILS OF THE MOLECULAR GEOMETRY |
Refinement. Refinement using reflections with F2 > 2.0 σ(F2). The weighted R-factor (wR) and goodness of fit (S) are based on F2. R-factor (gt) are based on F. The threshold expression of F2 > 2.0 σ(F2) is used only for calculating R-factor (gt). |
x | y | z | Uiso*/Ueq | ||
Cl1 | 0.00145 (5) | 0.00105 (4) | 0.34766 (4) | 0.06163 (16) | |
Cl2 | 0.15815 (5) | −0.25596 (4) | −0.00840 (5) | 0.06854 (18) | |
O1 | 0.13660 (12) | 0.18416 (10) | 0.23010 (10) | 0.0490 (3) | |
N1 | 0.32577 (12) | 0.25542 (11) | 0.09257 (12) | 0.0405 (3) | |
C1 | 0.13976 (13) | 0.08428 (12) | 0.17126 (12) | 0.0365 (3) | |
C2 | 0.08247 (14) | −0.01252 (13) | 0.21869 (14) | 0.0386 (3) | |
C3 | 0.08777 (14) | −0.11769 (13) | 0.16480 (13) | 0.0413 (4) | |
C4 | 0.14981 (16) | −0.12490 (13) | 0.06086 (14) | 0.0430 (4) | |
C5 | 0.20396 (16) | −0.02974 (14) | 0.00985 (13) | 0.0426 (4) | |
C6 | 0.19853 (14) | 0.07499 (13) | 0.06342 (12) | 0.0380 (3) | |
C7 | 0.24692 (17) | 0.18072 (14) | 0.00526 (12) | 0.0451 (4) | |
C8 | 0.46615 (17) | 0.20956 (14) | 0.12827 (17) | 0.0492 (4) | |
C9 | 0.5435 (2) | 0.28102 (19) | 0.22575 (18) | 0.0598 (5) | |
C10 | 0.5516 (2) | 0.40308 (18) | 0.1869 (2) | 0.0624 (5) | |
C11 | 0.40624 (18) | 0.44785 (16) | 0.1433 (2) | 0.0597 (5) | |
C12 | 0.33535 (18) | 0.37185 (14) | 0.04735 (17) | 0.0495 (4) | |
H1 | 0.2023 | 0.2252 | 0.2061 | 0.060* | |
H2 | 0.0502 | −0.1831 | 0.1989 | 0.049* | |
H3 | 0.2455 | −0.0372 | −0.0623 | 0.051* | |
H4 | 0.1673 | 0.2207 | −0.0302 | 0.054* | |
H5 | 0.3053 | 0.1599 | −0.0541 | 0.054* | |
H6 | 0.4572 | 0.1339 | 0.1552 | 0.058* | |
H7 | 0.5188 | 0.2100 | 0.0617 | 0.059* | |
H8 | 0.4929 | 0.2777 | 0.2934 | 0.071* | |
H9 | 0.6355 | 0.2519 | 0.2454 | 0.071* | |
H10 | 0.5908 | 0.4481 | 0.2514 | 0.075* | |
H11 | 0.6098 | 0.4075 | 0.1240 | 0.074* | |
H12 | 0.3505 | 0.4484 | 0.2080 | 0.072* | |
H13 | 0.4134 | 0.5227 | 0.1137 | 0.072* | |
H14 | 0.3896 | 0.3719 | −0.0182 | 0.060* | |
H15 | 0.2436 | 0.3991 | 0.0228 | 0.059* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0704 (3) | 0.0678 (3) | 0.0514 (3) | −0.0096 (2) | 0.0291 (2) | 0.0034 (2) |
Cl2 | 0.0754 (3) | 0.0506 (3) | 0.0815 (4) | −0.0108 (2) | 0.0169 (3) | −0.0219 (2) |
O1 | 0.0556 (6) | 0.0418 (6) | 0.0522 (6) | −0.0045 (5) | 0.0185 (5) | −0.0036 (5) |
N1 | 0.0360 (6) | 0.0403 (7) | 0.0448 (7) | −0.0068 (5) | 0.0027 (5) | 0.0067 (5) |
C1 | 0.0324 (6) | 0.0399 (8) | 0.0372 (7) | −0.0003 (5) | 0.0035 (5) | 0.0021 (6) |
C2 | 0.0330 (7) | 0.0458 (8) | 0.0378 (7) | −0.0012 (5) | 0.0069 (5) | 0.0058 (6) |
C3 | 0.0329 (7) | 0.0424 (8) | 0.0479 (8) | −0.0076 (6) | 0.0012 (6) | 0.0049 (6) |
C4 | 0.0373 (7) | 0.0425 (8) | 0.0485 (9) | −0.0048 (6) | 0.0013 (6) | −0.0056 (7) |
C5 | 0.0372 (7) | 0.0530 (9) | 0.0383 (8) | −0.0058 (7) | 0.0071 (6) | −0.0042 (7) |
C6 | 0.0318 (6) | 0.0460 (8) | 0.0358 (7) | −0.0059 (5) | 0.0022 (5) | 0.0037 (6) |
C7 | 0.0446 (8) | 0.0526 (9) | 0.0380 (8) | −0.0104 (7) | 0.0032 (6) | 0.0070 (7) |
C8 | 0.0406 (8) | 0.0426 (9) | 0.0633 (11) | −0.0031 (7) | 0.0004 (7) | 0.0057 (8) |
C9 | 0.0481 (9) | 0.0676 (12) | 0.0612 (11) | −0.0068 (8) | −0.0061 (8) | −0.0005 (9) |
C10 | 0.0526 (10) | 0.0561 (11) | 0.0772 (13) | −0.0122 (8) | 0.0008 (9) | −0.0112 (9) |
C11 | 0.0570 (10) | 0.0440 (10) | 0.0794 (13) | −0.0071 (8) | 0.0137 (9) | −0.0042 (9) |
C12 | 0.0459 (8) | 0.0433 (9) | 0.0595 (10) | −0.0035 (7) | 0.0074 (7) | 0.0114 (8) |
Cl1—C2 | 1.7323 (17) | C11—C12 | 1.516 (2) |
Cl2—C4 | 1.7396 (17) | O1—H1 | 0.860 |
O1—C1 | 1.3559 (19) | C3—H2 | 0.950 |
N1—C7 | 1.474 (2) | C5—H3 | 0.950 |
N1—C8 | 1.466 (2) | C7—H4 | 0.950 |
N1—C12 | 1.472 (2) | C7—H5 | 0.950 |
C1—C2 | 1.398 (2) | C8—H6 | 0.950 |
C1—C6 | 1.402 (2) | C8—H7 | 0.950 |
C2—C3 | 1.386 (2) | C9—H8 | 0.950 |
C3—C4 | 1.376 (2) | C9—H9 | 0.950 |
C4—C5 | 1.387 (2) | C10—H10 | 0.950 |
C5—C6 | 1.380 (2) | C10—H11 | 0.950 |
C6—C7 | 1.506 (2) | C11—H12 | 0.950 |
C8—C9 | 1.521 (2) | C11—H13 | 0.950 |
C9—C10 | 1.510 (3) | C12—H14 | 0.950 |
C10—C11 | 1.523 (2) | C12—H15 | 0.950 |
C2···C5i | 3.609 (2) | Cl1···Cl1ii | 3.4596 (17) |
C4···C6i | 3.533 (2) | Cl1···Cl2iii | 3.5734 (17) |
C5···C2i | 3.609 (2) | Cl2···Cl1iv | 3.5734 (17) |
C6···C4i | 3.533 (2) | ||
C7—N1—C8 | 110.88 (12) | N1—C7—H5 | 109.4 |
C7—N1—C12 | 111.67 (12) | C6—C7—H4 | 109.1 |
C8—N1—C12 | 110.63 (12) | C6—C7—H5 | 109.0 |
O1—C1—C2 | 119.38 (13) | H4—C7—H5 | 109.5 |
O1—C1—C6 | 121.91 (13) | N1—C8—H6 | 109.0 |
C2—C1—C6 | 118.71 (14) | N1—C8—H7 | 108.9 |
Cl1—C2—C1 | 118.49 (12) | C9—C8—H6 | 109.9 |
Cl1—C2—C3 | 119.67 (12) | C9—C8—H7 | 108.5 |
C1—C2—C3 | 121.84 (15) | H6—C8—H7 | 109.5 |
C2—C3—C4 | 118.15 (15) | C8—C9—H8 | 108.3 |
Cl2—C4—C3 | 119.06 (12) | C8—C9—H9 | 109.9 |
Cl2—C4—C5 | 119.61 (13) | C10—C9—H8 | 108.7 |
C3—C4—C5 | 121.33 (15) | C10—C9—H9 | 109.8 |
C4—C5—C6 | 120.52 (15) | H8—C9—H9 | 109.5 |
C1—C6—C5 | 119.39 (14) | C9—C10—H10 | 109.6 |
C1—C6—C7 | 119.11 (14) | C9—C10—H11 | 108.9 |
C5—C6—C7 | 121.41 (14) | C11—C10—H10 | 109.3 |
N1—C7—C6 | 111.09 (12) | C11—C10—H11 | 108.9 |
N1—C8—C9 | 111.12 (14) | H10—C10—H11 | 109.5 |
C8—C9—C10 | 110.59 (16) | C10—C11—H12 | 108.6 |
C9—C10—C11 | 110.66 (15) | C10—C11—H13 | 109.9 |
C10—C11—C12 | 110.78 (15) | C12—C11—H12 | 108.3 |
N1—C12—C11 | 109.91 (14) | C12—C11—H13 | 109.8 |
C1—O1—H1 | 106.2 | H12—C11—H13 | 109.5 |
C2—C3—H2 | 121.00 | N1—C12—H14 | 109.4 |
C4—C3—H2 | 121.00 | N1—C12—H15 | 109.2 |
C4—C5—H3 | 119.00 | C11—C12—H14 | 108.8 |
C6—C5—H3 | 120.00 | C11—C12—H15 | 110.0 |
N1—C7—H4 | 108.7 | H14—C12—H15 | 109.5 |
C7—N1—C8—C9 | −175.31 (14) | Cl1—C2—C3—C4 | 178.40 (11) |
C8—N1—C7—C6 | 73.99 (16) | C1—C2—C3—C4 | −1.0 (2) |
C7—N1—C12—C11 | 175.25 (13) | C2—C3—C4—Cl2 | 179.87 (11) |
C12—N1—C7—C6 | −162.14 (13) | C2—C3—C4—C5 | −0.9 (2) |
C8—N1—C12—C11 | −60.74 (18) | Cl2—C4—C5—C6 | −179.93 (11) |
C12—N1—C8—C9 | 60.22 (19) | C3—C4—C5—C6 | 0.9 (2) |
O1—C1—C2—Cl1 | 3.24 (18) | C4—C5—C6—C1 | 1.1 (2) |
O1—C1—C2—C3 | −177.40 (13) | C4—C5—C6—C7 | −175.45 (13) |
O1—C1—C6—C5 | 177.40 (13) | C1—C6—C7—N1 | 44.20 (18) |
O1—C1—C6—C7 | −6.0 (2) | C5—C6—C7—N1 | −139.28 (14) |
C2—C1—C6—C5 | −2.9 (2) | N1—C8—C9—C10 | −56.2 (2) |
C2—C1—C6—C7 | 173.73 (12) | C8—C9—C10—C11 | 52.9 (2) |
C6—C1—C2—Cl1 | −176.51 (10) | C9—C10—C11—C12 | −54.2 (2) |
C6—C1—C2—C3 | 2.8 (2) | C10—C11—C12—N1 | 57.7 (2) |
Symmetry codes: (i) −x, −y, −z; (ii) −x, −y, −z+1; (iii) x, −y−1/2, z+1/2; (iv) x, −y−1/2, z−1/2. |
Acknowledgements
This study was supported financially in part by Grants-in-Aid for Scientific Research (No.16750061) from the Japan Society for the Promotion of Science.
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