organic compounds
N-{[1-(4-methylbenzoyl)piperidin-4-yl]methyl}benzamide
of 4-methyl-aPG and Research Department of Physics, Queen Mary's College, Chennai-4, Tamilnadu, India, and bDepartment of Chemistry, Madras Christian College, Chennai-59, India
*Correspondence e-mail: guqmc@yahoo.com
In the title compound, C22H27N2O2, the piperidine ring adopts a half-chair conformation with the benzene rings inclined in a trans orientation with respect to the piperidine ring [dihedral angle between the benzene rings = 89.1 (1)°]. In the crystal, a three-centre asymmetric N—H⋯O/C—H⋯O hydrogen-bonding interaction leads to the formation of chains extending along the a-axis direction.
Keywords: crystal structure; benzamide; piperdine derivatives; biological activity; hydrogen bonding.
CCDC reference: 1027556
1. Related literature
For the synthesis of the title compound, see: Prathebha et al. (2013, 2014). For the biological activity of piperdine derivatives, see: Prostakov & Gaivoronskaya (1978); O'Hagan (2000); Pinder (1992). For related structures, see: Prathebha et al. (2014); Luo et al. (2011).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97.
Supporting information
CCDC reference: 1027556
10.1107/S1600536814021965/zs2314sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814021965/zs2314Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814021965/zs2314Isup3.cml
The procedure (Prathebha et al., 2013; 2014) adopted in the synthesis of a typical diamide is re-presented here (Fig. 3). 4-Aminomethylpiperidine (0.03 mol) was placed in a 250 mL round-bottomed flask and 120 mL of ethyl methyl ketone was added and the mixture was stirred at room temperature. After 10 minutes, triethylamine (0.06 mol) was added and the mixture was stirred for a further 15 minutes. 4-Methylbenzoyl chloride (0.06 mol) was then added and the reaction mixture was stirred at room temperature for about 3 h. A white precipitate of triethylammonium chloride was generated which was filtered and the filtrate was evaporated to obtain the crude product which was recrystallized twice from ethyl methyl ketone, giving the title compound: yield: 79%.
H atoms were positioned geometrically and treated as riding on their parent atoms with C—H = 0.93–0.98 Å and N—H = 0.86 Å, with U iso(H) = 1.5Ueq(C-methyl) or 1.2Ueq(N, C) for other H atoms.
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure of the title compound showing atom numbering, with displacement ellipsoids drawn at the 30% probability level. Fig. 2. The packing of the molecules in the Unassociated H-atoms are omitted and dashed lines indicate the hydrogen bonds. Fig. 3. Experimental procedure |
C22H26N2O2 | F(000) = 1504 |
Mr = 350.45 | Dx = 1.193 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 4831 reflections |
a = 15.3749 (6) Å | θ = 2.3–28.3° |
b = 13.1575 (5) Å | µ = 0.08 mm−1 |
c = 19.2929 (9) Å | T = 293 K |
V = 3902.9 (3) Å3 | Block, colourless |
Z = 8 | 0.20 × 0.15 × 0.10 mm |
Bruker Kappa APEXII CCD diffractometer | 4831 independent reflections |
Radiation source: fine-focus sealed tube | 1847 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
ω and ϕ scan | θmax = 28.3°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −17→20 |
Tmin = 0.975, Tmax = 0.998 | k = −17→12 |
26551 measured reflections | l = −12→25 |
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)] = 0.060 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.172 | H-atom parameters constrained |
S = 0.93 | w = 1/[σ2(Fo2) + (0.0588P)2 + 1.589P] where P = (Fo2 + 2Fc2)/3 |
4831 reflections | (Δ/σ)max < 0.001 |
235 parameters | Δρmax = 0.18 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
C22H26N2O2 | V = 3902.9 (3) Å3 |
Mr = 350.45 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 15.3749 (6) Å | µ = 0.08 mm−1 |
b = 13.1575 (5) Å | T = 293 K |
c = 19.2929 (9) Å | 0.20 × 0.15 × 0.10 mm |
Bruker Kappa APEXII CCD diffractometer | 4831 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 1847 reflections with I > 2σ(I) |
Tmin = 0.975, Tmax = 0.998 | Rint = 0.051 |
26551 measured reflections |
R[F2 > 2σ(F2)] = 0.060 | 0 restraints |
wR(F2) = 0.172 | H-atom parameters constrained |
S = 0.93 | Δρmax = 0.18 e Å−3 |
4831 reflections | Δρmin = −0.22 e Å−3 |
235 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 | ||
C22 | 0.6965 (2) | −0.4676 (2) | 0.47887 (18) | 0.0948 (10) | |
H22A | 0.7516 | −0.4377 | 0.4902 | 0.114* | |
H22B | 0.7033 | −0.5122 | 0.4399 | 0.114* | |
H22C | 0.6753 | −0.5055 | 0.5179 | 0.114* | |
N1 | 0.24058 (14) | 0.06231 (14) | 0.21465 (13) | 0.0678 (7) | |
C1 | −0.00836 (15) | 0.31788 (17) | 0.17840 (14) | 0.0539 (7) | |
C2 | 0.03275 (17) | 0.28524 (18) | 0.11916 (15) | 0.0634 (7) | |
H2 | 0.0216 | 0.3183 | 0.0775 | 0.076* | |
C3 | 0.08988 (16) | 0.20487 (19) | 0.12001 (15) | 0.0631 (7) | |
H3 | 0.1158 | 0.1835 | 0.0790 | 0.076* | |
C4 | 0.10897 (14) | 0.15576 (17) | 0.18134 (14) | 0.0504 (6) | |
C5 | 0.06856 (16) | 0.18834 (19) | 0.24129 (14) | 0.0566 (7) | |
H5 | 0.0809 | 0.1563 | 0.2831 | 0.068* | |
C6 | 0.01028 (15) | 0.26771 (18) | 0.23982 (14) | 0.0571 (7) | |
H6 | −0.0170 | 0.2880 | 0.2806 | 0.069* | |
C7 | −0.07222 (18) | 0.4045 (2) | 0.17671 (17) | 0.0831 (9) | |
H7A | −0.0943 | 0.4163 | 0.2225 | 0.100* | |
H7B | −0.1195 | 0.3878 | 0.1462 | 0.100* | |
H7C | −0.0436 | 0.4647 | 0.1603 | 0.100* | |
C8 | 0.16482 (16) | 0.0623 (2) | 0.18032 (15) | 0.0582 (7) | |
C9 | 0.29448 (18) | −0.0291 (2) | 0.21712 (17) | 0.0756 (9) | |
H9A | 0.3451 | −0.0199 | 0.1878 | 0.091* | |
H9B | 0.2616 | −0.0865 | 0.1995 | 0.091* | |
C10 | 0.32335 (16) | −0.05074 (18) | 0.29030 (15) | 0.0653 (8) | |
H10A | 0.3618 | −0.1092 | 0.2904 | 0.078* | |
H10B | 0.2730 | −0.0672 | 0.3184 | 0.078* | |
C11 | 0.37020 (15) | 0.03968 (18) | 0.32161 (15) | 0.0595 (7) | |
H11 | 0.4215 | 0.0535 | 0.2930 | 0.071* | |
C12 | 0.31090 (17) | 0.13214 (18) | 0.31724 (16) | 0.0704 (8) | |
H12A | 0.2602 | 0.1211 | 0.3463 | 0.084* | |
H12B | 0.3415 | 0.1912 | 0.3348 | 0.084* | |
C13 | 0.28185 (17) | 0.15248 (19) | 0.24409 (17) | 0.0758 (9) | |
H13A | 0.2410 | 0.2087 | 0.2437 | 0.091* | |
H13B | 0.3316 | 0.1714 | 0.2160 | 0.091* | |
C14 | 0.40150 (18) | 0.0214 (2) | 0.39565 (15) | 0.0701 (8) | |
H14A | 0.4287 | 0.0831 | 0.4126 | 0.084* | |
H14B | 0.3514 | 0.0076 | 0.4247 | 0.084* | |
C15 | 0.43907 (18) | −0.1546 (2) | 0.42462 (14) | 0.0650 (7) | |
C16 | 0.50989 (17) | −0.2317 (2) | 0.43383 (13) | 0.0596 (7) | |
C17 | 0.48785 (18) | −0.3334 (2) | 0.42988 (14) | 0.0682 (8) | |
H17 | 0.4311 | −0.3516 | 0.4186 | 0.082* | |
C18 | 0.5486 (2) | −0.4082 (2) | 0.44237 (15) | 0.0724 (8) | |
H18 | 0.5324 | −0.4760 | 0.4381 | 0.087* | |
C19 | 0.63257 (19) | −0.3850 (2) | 0.46102 (14) | 0.0695 (8) | |
C20 | 0.65476 (19) | −0.2835 (2) | 0.46459 (16) | 0.0776 (9) | |
H20 | 0.7112 | −0.2656 | 0.4770 | 0.093* | |
C21 | 0.59503 (18) | −0.2076 (2) | 0.45019 (14) | 0.0688 (8) | |
H21 | 0.6123 | −0.1399 | 0.4515 | 0.083* | |
N2 | 0.46281 (13) | −0.06195 (16) | 0.40288 (12) | 0.0649 (6) | |
H2A | 0.5165 | −0.0514 | 0.3928 | 0.078* | |
O1 | 0.13858 (11) | −0.01377 (14) | 0.14932 (11) | 0.0784 (6) | |
O2 | 0.36348 (13) | −0.17709 (15) | 0.43739 (12) | 0.0903 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C22 | 0.094 (2) | 0.103 (2) | 0.088 (3) | 0.014 (2) | −0.0037 (19) | 0.0161 (19) |
N1 | 0.0524 (13) | 0.0512 (13) | 0.0998 (19) | 0.0038 (11) | −0.0208 (13) | −0.0054 (12) |
C1 | 0.0500 (15) | 0.0491 (14) | 0.0626 (19) | 0.0003 (12) | −0.0012 (13) | −0.0051 (13) |
C2 | 0.0760 (19) | 0.0608 (16) | 0.0534 (18) | 0.0120 (15) | −0.0029 (14) | 0.0044 (13) |
C3 | 0.0696 (18) | 0.0681 (17) | 0.0518 (18) | 0.0097 (15) | 0.0032 (13) | −0.0024 (14) |
C4 | 0.0442 (14) | 0.0494 (14) | 0.0575 (17) | −0.0011 (11) | −0.0046 (12) | −0.0013 (13) |
C5 | 0.0592 (17) | 0.0620 (16) | 0.0486 (17) | −0.0039 (14) | −0.0040 (13) | 0.0010 (13) |
C6 | 0.0566 (16) | 0.0605 (16) | 0.0543 (18) | −0.0043 (14) | 0.0087 (13) | −0.0079 (13) |
C7 | 0.079 (2) | 0.0688 (18) | 0.102 (3) | 0.0132 (16) | 0.0057 (17) | −0.0044 (17) |
C8 | 0.0517 (16) | 0.0571 (17) | 0.0659 (19) | −0.0026 (13) | −0.0026 (14) | −0.0014 (14) |
C9 | 0.0630 (18) | 0.0685 (18) | 0.095 (3) | 0.0176 (15) | −0.0140 (16) | −0.0107 (17) |
C10 | 0.0535 (16) | 0.0542 (16) | 0.088 (2) | 0.0099 (13) | −0.0041 (15) | −0.0025 (15) |
C11 | 0.0425 (14) | 0.0619 (16) | 0.074 (2) | −0.0021 (13) | 0.0008 (13) | 0.0039 (14) |
C12 | 0.0559 (16) | 0.0542 (16) | 0.101 (3) | −0.0060 (13) | −0.0106 (16) | −0.0082 (15) |
C13 | 0.0550 (17) | 0.0574 (17) | 0.115 (3) | −0.0053 (14) | −0.0228 (16) | 0.0050 (17) |
C14 | 0.0614 (17) | 0.0717 (18) | 0.077 (2) | −0.0026 (15) | 0.0065 (15) | −0.0039 (15) |
C15 | 0.0598 (19) | 0.080 (2) | 0.0554 (18) | −0.0082 (16) | 0.0033 (14) | 0.0081 (15) |
C16 | 0.0611 (18) | 0.0724 (19) | 0.0451 (16) | −0.0070 (15) | −0.0011 (12) | 0.0101 (13) |
C17 | 0.0668 (18) | 0.082 (2) | 0.0558 (19) | −0.0141 (17) | −0.0077 (14) | 0.0083 (15) |
C18 | 0.084 (2) | 0.0709 (19) | 0.062 (2) | −0.0063 (18) | −0.0051 (15) | 0.0078 (15) |
C19 | 0.070 (2) | 0.083 (2) | 0.0557 (19) | 0.0009 (17) | 0.0004 (14) | 0.0113 (15) |
C20 | 0.0625 (19) | 0.091 (2) | 0.079 (2) | −0.0083 (18) | −0.0071 (15) | 0.0125 (18) |
C21 | 0.0663 (19) | 0.0714 (18) | 0.069 (2) | −0.0080 (16) | −0.0049 (15) | 0.0095 (15) |
N2 | 0.0518 (13) | 0.0738 (15) | 0.0691 (17) | −0.0011 (12) | 0.0025 (11) | 0.0105 (12) |
O1 | 0.0663 (12) | 0.0677 (12) | 0.1013 (17) | 0.0074 (10) | −0.0196 (11) | −0.0242 (11) |
O2 | 0.0584 (13) | 0.1027 (15) | 0.1098 (18) | −0.0099 (11) | 0.0146 (11) | 0.0269 (13) |
C22—C19 | 1.505 (4) | C10—H10A | 0.9700 |
C22—H22A | 0.9600 | C10—H10B | 0.9700 |
C22—H22B | 0.9600 | C11—C12 | 1.523 (3) |
C22—H22C | 0.9600 | C11—C14 | 1.526 (4) |
N1—C8 | 1.340 (3) | C11—H11 | 0.9800 |
N1—C13 | 1.460 (3) | C12—C13 | 1.504 (4) |
N1—C9 | 1.461 (3) | C12—H12A | 0.9700 |
C1—C2 | 1.375 (3) | C12—H12B | 0.9700 |
C1—C6 | 1.386 (3) | C13—H13A | 0.9700 |
C1—C7 | 1.505 (3) | C13—H13B | 0.9700 |
C2—C3 | 1.375 (3) | C14—N2 | 1.452 (3) |
C2—H2 | 0.9300 | C14—H14A | 0.9700 |
C3—C4 | 1.380 (3) | C14—H14B | 0.9700 |
C3—H3 | 0.9300 | C15—O2 | 1.224 (3) |
C4—C5 | 1.381 (3) | C15—N2 | 1.340 (3) |
C4—C8 | 1.500 (3) | C15—C16 | 1.499 (4) |
C5—C6 | 1.376 (3) | C16—C17 | 1.382 (3) |
C5—H5 | 0.9300 | C16—C21 | 1.383 (3) |
C6—H6 | 0.9300 | C17—C18 | 1.379 (4) |
C7—H7A | 0.9600 | C17—H17 | 0.9300 |
C7—H7B | 0.9600 | C18—C19 | 1.374 (4) |
C7—H7C | 0.9600 | C18—H18 | 0.9300 |
C8—O1 | 1.233 (3) | C19—C20 | 1.381 (4) |
C9—C10 | 1.507 (4) | C20—C21 | 1.384 (4) |
C9—H9A | 0.9700 | C20—H20 | 0.9300 |
C9—H9B | 0.9700 | C21—H21 | 0.9300 |
C10—C11 | 1.516 (3) | N2—H2A | 0.8600 |
C19—C22—H22A | 109.5 | C10—C11—C12 | 108.7 (2) |
C19—C22—H22B | 109.5 | C10—C11—C14 | 113.5 (2) |
H22A—C22—H22B | 109.5 | C12—C11—C14 | 111.5 (2) |
C19—C22—H22C | 109.5 | C10—C11—H11 | 107.6 |
H22A—C22—H22C | 109.5 | C12—C11—H11 | 107.6 |
H22B—C22—H22C | 109.5 | C14—C11—H11 | 107.6 |
C8—N1—C13 | 124.8 (2) | C13—C12—C11 | 111.8 (2) |
C8—N1—C9 | 120.6 (2) | C13—C12—H12A | 109.2 |
C13—N1—C9 | 114.2 (2) | C11—C12—H12A | 109.2 |
C2—C1—C6 | 117.8 (2) | C13—C12—H12B | 109.2 |
C2—C1—C7 | 121.2 (2) | C11—C12—H12B | 109.2 |
C6—C1—C7 | 120.9 (2) | H12A—C12—H12B | 107.9 |
C1—C2—C3 | 121.6 (2) | N1—C13—C12 | 110.4 (2) |
C1—C2—H2 | 119.2 | N1—C13—H13A | 109.6 |
C3—C2—H2 | 119.2 | C12—C13—H13A | 109.6 |
C2—C3—C4 | 120.4 (2) | N1—C13—H13B | 109.6 |
C2—C3—H3 | 119.8 | C12—C13—H13B | 109.6 |
C4—C3—H3 | 119.8 | H13A—C13—H13B | 108.1 |
C3—C4—C5 | 118.5 (2) | N2—C14—C11 | 114.4 (2) |
C3—C4—C8 | 119.6 (2) | N2—C14—H14A | 108.7 |
C5—C4—C8 | 121.5 (2) | C11—C14—H14A | 108.7 |
C6—C5—C4 | 120.7 (2) | N2—C14—H14B | 108.7 |
C6—C5—H5 | 119.6 | C11—C14—H14B | 108.7 |
C4—C5—H5 | 119.6 | H14A—C14—H14B | 107.6 |
C5—C6—C1 | 120.9 (2) | O2—C15—N2 | 122.8 (3) |
C5—C6—H6 | 119.6 | O2—C15—C16 | 120.2 (3) |
C1—C6—H6 | 119.6 | N2—C15—C16 | 117.1 (2) |
C1—C7—H7A | 109.5 | C17—C16—C21 | 117.8 (3) |
C1—C7—H7B | 109.5 | C17—C16—C15 | 118.1 (2) |
H7A—C7—H7B | 109.5 | C21—C16—C15 | 124.0 (3) |
C1—C7—H7C | 109.5 | C16—C17—C18 | 121.0 (3) |
H7A—C7—H7C | 109.5 | C16—C17—H17 | 119.5 |
H7B—C7—H7C | 109.5 | C18—C17—H17 | 119.5 |
O1—C8—N1 | 121.6 (2) | C19—C18—C17 | 121.6 (3) |
O1—C8—C4 | 119.0 (2) | C19—C18—H18 | 119.2 |
N1—C8—C4 | 119.4 (2) | C17—C18—H18 | 119.2 |
N1—C9—C10 | 110.7 (2) | C18—C19—C20 | 117.4 (3) |
N1—C9—H9A | 109.5 | C18—C19—C22 | 120.9 (3) |
C10—C9—H9A | 109.5 | C20—C19—C22 | 121.7 (3) |
N1—C9—H9B | 109.5 | C19—C20—C21 | 121.6 (3) |
C10—C9—H9B | 109.5 | C19—C20—H20 | 119.2 |
H9A—C9—H9B | 108.1 | C21—C20—H20 | 119.2 |
C9—C10—C11 | 111.4 (2) | C16—C21—C20 | 120.5 (3) |
C9—C10—H10A | 109.4 | C16—C21—H21 | 119.7 |
C11—C10—H10A | 109.4 | C20—C21—H21 | 119.7 |
C9—C10—H10B | 109.4 | C15—N2—C14 | 122.7 (2) |
C11—C10—H10B | 109.4 | C15—N2—H2A | 118.7 |
H10A—C10—H10B | 108.0 | C14—N2—H2A | 118.7 |
C6—C1—C2—C3 | 0.7 (4) | C14—C11—C12—C13 | 178.4 (2) |
C7—C1—C2—C3 | −178.7 (2) | C8—N1—C13—C12 | 132.7 (3) |
C1—C2—C3—C4 | −1.4 (4) | C9—N1—C13—C12 | −55.1 (3) |
C2—C3—C4—C5 | 0.8 (4) | C11—C12—C13—N1 | 55.1 (3) |
C2—C3—C4—C8 | 174.3 (2) | C10—C11—C14—N2 | 60.6 (3) |
C3—C4—C5—C6 | 0.3 (3) | C12—C11—C14—N2 | −176.3 (2) |
C8—C4—C5—C6 | −173.0 (2) | O2—C15—C16—C17 | 25.0 (4) |
C4—C5—C6—C1 | −1.0 (3) | N2—C15—C16—C17 | −155.7 (2) |
C2—C1—C6—C5 | 0.5 (3) | O2—C15—C16—C21 | −151.0 (3) |
C7—C1—C6—C5 | 179.9 (2) | N2—C15—C16—C21 | 28.4 (4) |
C13—N1—C8—O1 | 170.9 (3) | C21—C16—C17—C18 | 0.5 (4) |
C9—N1—C8—O1 | −0.8 (4) | C15—C16—C17—C18 | −175.7 (2) |
C13—N1—C8—C4 | −11.1 (4) | C16—C17—C18—C19 | 1.8 (4) |
C9—N1—C8—C4 | 177.3 (2) | C17—C18—C19—C20 | −2.1 (4) |
C3—C4—C8—O1 | −63.0 (3) | C17—C18—C19—C22 | 176.1 (3) |
C5—C4—C8—O1 | 110.2 (3) | C18—C19—C20—C21 | 0.2 (4) |
C3—C4—C8—N1 | 118.9 (3) | C22—C19—C20—C21 | −178.0 (3) |
C5—C4—C8—N1 | −67.9 (3) | C17—C16—C21—C20 | −2.4 (4) |
C8—N1—C9—C10 | −132.0 (3) | C15—C16—C21—C20 | 173.6 (3) |
C13—N1—C9—C10 | 55.5 (3) | C19—C20—C21—C16 | 2.1 (4) |
N1—C9—C10—C11 | −55.6 (3) | O2—C15—N2—C14 | 2.9 (4) |
C9—C10—C11—C12 | 55.8 (3) | C16—C15—N2—C14 | −176.4 (2) |
C9—C10—C11—C14 | −179.5 (2) | C11—C14—N2—C15 | −99.6 (3) |
C10—C11—C12—C13 | −55.8 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O1i | 0.86 | 2.10 | 2.953 (3) | 169 |
C21—H21···O1i | 0.93 | 2.59 | 3.262 (3) | 130 |
C9—H9B···O1 | 0.97 | 2.33 | 2.738 (3) | 104 |
C14—H14B···O2 | 0.97 | 2.45 | 2.794 (3) | 100 |
Symmetry code: (i) x+1/2, y, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O1i | 0.86 | 2.10 | 2.953 (3) | 169 |
C21—H21···O1i | 0.93 | 2.59 | 3.262 (3) | 130 |
Symmetry code: (i) x+1/2, y, −z+1/2. |
Acknowledgements
The authors thank Professor D. Velmurugan of the Centre for Advanced Study in Crystallography and Biophysics, University of Madras, for providing data-collection and computer facilities.
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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.
Piperidines are an important group of compounds in the field of medicinal chemistry owing to the fact that they can frequently be found in the structures of numerous naturally occurring alkaloid and synthetic compounds with interesting biological and pharmacological properties (Prostakov et al., 1978). Piperidine and its derivatives have a high impact on the medical field due to their wide range of pharmacological activities. The piperidine ring system is a ubiquitous structural component of naturally occurring alkaloid and pharmaceuticals (O'Hagan et al., 2000; Pinder et al., 1992). We report in this communication, the synthesis and crystal structure of a new piperidine derivative, the title compound C22H27N2O2.
In the title compound (Fig. 1), the bond lengths in the substituted benzene rings A and B are in good agreement with literature values. The C—N distances [1.460 (3)–1.523 (3) Å] are in the normal range and are in good agreement with those in similar reported structures (Prathebha et al., 2013; Luo et al., 2011). The bond angles around the N1 and N2 atoms [359.6 (1)° and 360.0 (2)°, respectively], show sp3 hybridization of the atoms. The two benzene rings A and B (C1–C6 and C16–C21) are inclined to one another [dihedral angle = 89.1 (1)°]. The piperdine ring (C9/C10/C11/C12/C13/N1) adopts a half-chair conformation with puckering parameters of q2 = 0.0280 (2) Å, ϕ2 = 114.04(5.18)°, q3 = 0.5563 (2) Å, QT = 0.5570 (2) Å and θ2 = 2.89 (2)°.
In the crystal, the molecules are linked by a asymmetric three-centre cyclic hydrogen-bonding interaction involving N1—H and C21—H donors and O1i (Table 1), giving an R1 2(7) motif and forming a chain which extends along the a axis (Fig. 2).