organic compounds
2-[4,5-Diphenyl-2-(pyridin-2-yl)-1H-imidazol-1-yl]-3-phenylpropan-1-ol
aSchool of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, People's Republic of China
*Correspondence e-mail: henangongda@yahoo.com
In the title compound, C29H25N3O, the central imidazole ring forms dihedral angles of 64.7 (3), 33.5 (3) and 81.2 (2)° with the pyridyl and two phenyl substituents, respectively. An intramolecular C—H⋯N hydrogen bond is observed. In the crystal, O—H⋯N and C—H⋯O hydrogen bonds link the molecules into chains parallel to the a axis.
Related literature
For the synthesis and properties of chiral ionic liquids, see: Ding & Armstrong (2005); Bwambok et al. (2008); Mao et al. (2010). For a related structure, see: Xiao et al. (2012).
Experimental
Crystal data
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Data collection: CrysAlis PRO (Agilent, 2011); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2.
Supporting information
10.1107/S1600536812018703/rz2739sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812018703/rz2739Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812018703/rz2739Isup3.cml
To a solution of L-phenylalaninol (15.1 g, 0.1 mol) in MeOH (50 ml) in an ice-bath, molar equivalents of dibenzoyl, 2-formyl pyridine and ammonium acetate were added. The mixture was kept stirring in the ice-bath until all the solids were dissolved before being heated to 60°C for 5 h. The mixture was then cooled to r.t. and the solvent was removed by evaporation. The residue was washed with H2O to obtain the crude product. Crystallization of the crude product in EtOH afforded colourless crystals of the title compound.
The H atoms associated to the hydroxy group and to the C29 methylene group were located in a difference Fourier map and refined freely. All other H atoms were positioned geometrically and refined using a riding model, with C—H = 0.93-0.98 Å, and with Uiso(H) = 1.2 Ueq(C).
Data collection: CrysAlis PRO (Agilent, 2011); cell
CrysAlis PRO (Agilent, 2011); data reduction: CrysAlis PRO (Agilent, 2011); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).Fig. 1. The molecular structure of the title compound showing 30% probability displacement ellipsoids. Hydrogen atoms are omitted for clarity. |
C29H25N3O | F(000) = 912 |
Mr = 431.52 | Dx = 1.213 Mg m−3 |
Orthorhombic, P212121 | Cu Kα radiation, λ = 1.54178 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 3448 reflections |
a = 9.2695 (4) Å | θ = 3.9–70.3° |
b = 15.8818 (6) Å | µ = 0.58 mm−1 |
c = 16.0498 (6) Å | T = 291 K |
V = 2362.79 (16) Å3 | Prismatic, colourless |
Z = 4 | 0.38 × 0.28 × 0.25 mm |
Oxford Diffraction Xcalibur Eos Gemini diffractometer | 4442 independent reflections |
Radiation source: fine-focus sealed tube | 3981 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
ω scans | θmax = 70.4°, θmin = 3.9° |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | h = −11→6 |
Tmin = 0.809, Tmax = 0.868 | k = −19→19 |
9413 measured reflections | l = −19→18 |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H atoms treated by a mixture of independent and constrained refinement |
R[F2 > 2σ(F2)] = 0.038 | w = 1/[σ2(Fo2) + (0.0468P)2 + 0.1152P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.102 | (Δ/σ)max < 0.001 |
S = 1.04 | Δρmax = 0.12 e Å−3 |
4442 reflections | Δρmin = −0.13 e Å−3 |
311 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
0 restraints | Extinction coefficient: 0.0043 (3) |
Primary atom site location: structure-invariant direct methods | Absolute structure: Flack (1983), 1871 Friedel pairs |
Secondary atom site location: difference Fourier map | Absolute structure parameter: 0.2 (4) |
C29H25N3O | V = 2362.79 (16) Å3 |
Mr = 431.52 | Z = 4 |
Orthorhombic, P212121 | Cu Kα radiation |
a = 9.2695 (4) Å | µ = 0.58 mm−1 |
b = 15.8818 (6) Å | T = 291 K |
c = 16.0498 (6) Å | 0.38 × 0.28 × 0.25 mm |
Oxford Diffraction Xcalibur Eos Gemini diffractometer | 4442 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | 3981 reflections with I > 2σ(I) |
Tmin = 0.809, Tmax = 0.868 | Rint = 0.029 |
9413 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.102 | Δρmax = 0.12 e Å−3 |
S = 1.04 | Δρmin = −0.13 e Å−3 |
4442 reflections | Absolute structure: Flack (1983), 1871 Friedel pairs |
311 parameters | Absolute structure parameter: 0.2 (4) |
0 restraints |
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 | 0.74800 (17) | 0.67325 (12) | 0.63461 (10) | 0.0746 (4) | |
H1 | 0.788 (3) | 0.6736 (19) | 0.5871 (18) | 0.094 (9)* | |
N1 | 0.38909 (18) | 0.81423 (9) | 0.51834 (9) | 0.0550 (4) | |
N2 | 0.45320 (16) | 0.73451 (8) | 0.62480 (8) | 0.0463 (3) | |
N3 | 0.3134 (2) | 0.60522 (11) | 0.49389 (10) | 0.0667 (5) | |
C1 | 0.3385 (3) | 1.00699 (12) | 0.64156 (14) | 0.0632 (5) | |
H1A | 0.3170 | 0.9829 | 0.6929 | 0.076* | |
C2 | 0.3175 (3) | 1.09285 (14) | 0.63001 (17) | 0.0765 (7) | |
H2 | 0.2801 | 1.1254 | 0.6731 | 0.092* | |
C3 | 0.3515 (4) | 1.12968 (14) | 0.55573 (18) | 0.0897 (9) | |
H3 | 0.3390 | 1.1873 | 0.5484 | 0.108* | |
C4 | 0.4043 (4) | 1.08104 (15) | 0.49205 (18) | 0.0922 (8) | |
H4 | 0.4270 | 1.1059 | 0.4413 | 0.111* | |
C5 | 0.4241 (3) | 0.99523 (14) | 0.50254 (15) | 0.0744 (6) | |
H5 | 0.4599 | 0.9629 | 0.4588 | 0.089* | |
C6 | 0.3908 (2) | 0.95713 (11) | 0.57826 (12) | 0.0559 (5) | |
C7 | 0.4089 (2) | 0.86522 (10) | 0.58664 (11) | 0.0507 (4) | |
C8 | 0.44924 (19) | 0.81699 (10) | 0.65331 (10) | 0.0462 (4) | |
C9 | 0.5020 (2) | 0.84066 (10) | 0.73772 (10) | 0.0499 (4) | |
C10 | 0.6491 (3) | 0.84668 (14) | 0.75092 (14) | 0.0680 (5) | |
H10 | 0.7133 | 0.8351 | 0.7079 | 0.082* | |
C11 | 0.7002 (4) | 0.87002 (17) | 0.82853 (18) | 0.0939 (9) | |
H11 | 0.7990 | 0.8748 | 0.8372 | 0.113* | |
C12 | 0.6071 (5) | 0.88607 (16) | 0.89254 (16) | 0.1047 (13) | |
H12 | 0.6425 | 0.9013 | 0.9446 | 0.126* | |
C13 | 0.4622 (4) | 0.87974 (17) | 0.87992 (14) | 0.0975 (10) | |
H13 | 0.3989 | 0.8909 | 0.9235 | 0.117* | |
C14 | 0.4087 (3) | 0.85679 (14) | 0.80277 (13) | 0.0712 (6) | |
H14 | 0.3096 | 0.8522 | 0.7947 | 0.085* | |
C15 | 0.4153 (2) | 0.73696 (11) | 0.54294 (10) | 0.0496 (4) | |
C16 | 0.4123 (2) | 0.66518 (10) | 0.48335 (10) | 0.0503 (4) | |
C17 | 0.5080 (3) | 0.66655 (14) | 0.41749 (13) | 0.0661 (5) | |
H17 | 0.5735 | 0.7105 | 0.4115 | 0.079* | |
C18 | 0.5044 (3) | 0.60158 (16) | 0.36082 (15) | 0.0778 (6) | |
H18 | 0.5682 | 0.6007 | 0.3161 | 0.093* | |
C19 | 0.4059 (3) | 0.53848 (14) | 0.37106 (15) | 0.0769 (6) | |
H19 | 0.4017 | 0.4934 | 0.3342 | 0.092* | |
C20 | 0.3140 (3) | 0.54377 (14) | 0.43719 (14) | 0.0771 (7) | |
H20 | 0.2462 | 0.5011 | 0.4433 | 0.093* | |
C21 | 0.1277 (2) | 0.65894 (16) | 0.71789 (14) | 0.0702 (5) | |
H21 | 0.1068 | 0.6486 | 0.6621 | 0.084* | |
C22 | 0.0228 (3) | 0.69407 (19) | 0.7686 (2) | 0.0900 (8) | |
H22 | −0.0677 | 0.7066 | 0.7469 | 0.108* | |
C23 | 0.0523 (3) | 0.71040 (17) | 0.85053 (19) | 0.0858 (8) | |
H23 | −0.0175 | 0.7347 | 0.8845 | 0.103* | |
C24 | 0.1850 (3) | 0.69072 (16) | 0.88228 (15) | 0.0768 (6) | |
H24 | 0.2050 | 0.7012 | 0.9381 | 0.092* | |
C25 | 0.2892 (2) | 0.65539 (14) | 0.83191 (13) | 0.0620 (5) | |
H25 | 0.3791 | 0.6423 | 0.8543 | 0.074* | |
C26 | 0.2624 (2) | 0.63902 (11) | 0.74854 (11) | 0.0518 (4) | |
C27 | 0.3778 (2) | 0.60045 (11) | 0.69460 (11) | 0.0550 (4) | |
H27A | 0.3347 | 0.5818 | 0.6427 | 0.066* | |
H27B | 0.4167 | 0.5513 | 0.7226 | 0.066* | |
C28 | 0.5014 (2) | 0.66113 (10) | 0.67490 (10) | 0.0475 (4) | |
H28 | 0.5348 | 0.6836 | 0.7284 | 0.057* | |
C29 | 0.6303 (2) | 0.61828 (12) | 0.63495 (11) | 0.0552 (4) | |
H29A | 0.607 (2) | 0.5961 (13) | 0.5795 (12) | 0.054 (5)* | |
H29B | 0.656 (2) | 0.5676 (14) | 0.6711 (13) | 0.058 (6)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0663 (9) | 0.0981 (12) | 0.0593 (8) | −0.0147 (9) | 0.0172 (7) | −0.0167 (8) |
N1 | 0.0679 (9) | 0.0455 (7) | 0.0516 (8) | −0.0010 (7) | −0.0131 (7) | 0.0021 (6) |
N2 | 0.0545 (8) | 0.0394 (6) | 0.0449 (7) | −0.0044 (6) | 0.0003 (6) | 0.0021 (5) |
N3 | 0.0840 (12) | 0.0588 (9) | 0.0571 (9) | −0.0182 (9) | −0.0078 (8) | −0.0028 (8) |
C1 | 0.0696 (13) | 0.0496 (9) | 0.0703 (12) | −0.0003 (9) | −0.0161 (11) | −0.0032 (9) |
C2 | 0.0835 (15) | 0.0513 (11) | 0.0947 (17) | 0.0112 (11) | −0.0284 (14) | −0.0126 (11) |
C3 | 0.115 (2) | 0.0438 (9) | 0.110 (2) | 0.0078 (12) | −0.0412 (17) | 0.0066 (12) |
C4 | 0.131 (2) | 0.0600 (13) | 0.0858 (16) | −0.0023 (15) | −0.0165 (18) | 0.0223 (12) |
C5 | 0.1002 (18) | 0.0520 (10) | 0.0711 (12) | 0.0030 (11) | −0.0102 (13) | 0.0109 (9) |
C6 | 0.0619 (12) | 0.0431 (8) | 0.0626 (10) | −0.0013 (8) | −0.0200 (9) | 0.0003 (8) |
C7 | 0.0562 (10) | 0.0428 (8) | 0.0530 (9) | −0.0027 (8) | −0.0081 (8) | −0.0006 (7) |
C8 | 0.0498 (9) | 0.0419 (7) | 0.0470 (8) | −0.0029 (7) | 0.0014 (7) | 0.0001 (6) |
C9 | 0.0668 (10) | 0.0383 (7) | 0.0446 (8) | −0.0040 (7) | −0.0009 (8) | 0.0027 (6) |
C10 | 0.0750 (13) | 0.0635 (11) | 0.0654 (11) | −0.0066 (10) | −0.0133 (11) | −0.0033 (10) |
C11 | 0.118 (2) | 0.0734 (14) | 0.0907 (18) | −0.0084 (15) | −0.0504 (17) | −0.0026 (14) |
C12 | 0.199 (4) | 0.0574 (12) | 0.0574 (13) | −0.0037 (19) | −0.0422 (19) | −0.0018 (10) |
C13 | 0.172 (3) | 0.0718 (15) | 0.0484 (11) | 0.0041 (18) | 0.0144 (16) | −0.0023 (10) |
C14 | 0.0922 (16) | 0.0635 (11) | 0.0578 (11) | −0.0013 (11) | 0.0134 (11) | 0.0014 (9) |
C15 | 0.0545 (10) | 0.0452 (8) | 0.0492 (8) | −0.0024 (8) | −0.0041 (8) | 0.0019 (7) |
C16 | 0.0595 (10) | 0.0438 (8) | 0.0478 (8) | 0.0027 (8) | −0.0096 (8) | 0.0010 (7) |
C17 | 0.0654 (12) | 0.0655 (11) | 0.0675 (11) | −0.0032 (10) | 0.0017 (10) | −0.0087 (9) |
C18 | 0.0777 (14) | 0.0837 (15) | 0.0721 (13) | 0.0122 (13) | 0.0085 (12) | −0.0193 (12) |
C19 | 0.1013 (18) | 0.0572 (11) | 0.0721 (13) | 0.0065 (12) | −0.0160 (14) | −0.0179 (10) |
C20 | 0.1032 (19) | 0.0589 (11) | 0.0693 (13) | −0.0229 (13) | −0.0153 (13) | −0.0068 (10) |
C21 | 0.0683 (13) | 0.0761 (13) | 0.0663 (12) | −0.0071 (11) | −0.0070 (10) | 0.0059 (10) |
C22 | 0.0617 (14) | 0.0954 (18) | 0.113 (2) | 0.0056 (13) | 0.0016 (14) | 0.0151 (16) |
C23 | 0.0765 (16) | 0.0768 (15) | 0.1042 (19) | 0.0024 (12) | 0.0317 (15) | 0.0014 (14) |
C24 | 0.0943 (17) | 0.0745 (13) | 0.0616 (12) | −0.0117 (13) | 0.0199 (12) | −0.0041 (10) |
C25 | 0.0652 (12) | 0.0650 (11) | 0.0557 (10) | −0.0059 (9) | 0.0038 (9) | 0.0049 (9) |
C26 | 0.0590 (10) | 0.0444 (8) | 0.0521 (9) | −0.0102 (8) | 0.0057 (8) | 0.0076 (7) |
C27 | 0.0706 (12) | 0.0403 (8) | 0.0542 (9) | −0.0067 (8) | 0.0078 (9) | 0.0018 (7) |
C28 | 0.0596 (10) | 0.0407 (7) | 0.0423 (7) | 0.0000 (7) | 0.0018 (7) | 0.0049 (6) |
C29 | 0.0674 (11) | 0.0531 (9) | 0.0452 (8) | 0.0070 (9) | 0.0046 (8) | 0.0036 (8) |
O1—H1 | 0.85 (3) | C13—H13 | 0.9300 |
O1—C29 | 1.397 (3) | C13—C14 | 1.383 (4) |
N1—C7 | 1.375 (2) | C14—H14 | 0.9300 |
N1—C15 | 1.312 (2) | C15—C16 | 1.488 (2) |
N2—C8 | 1.388 (2) | C16—C17 | 1.380 (3) |
N2—C15 | 1.360 (2) | C17—H17 | 0.9300 |
N2—C28 | 1.485 (2) | C17—C18 | 1.376 (3) |
N3—C16 | 1.333 (3) | C18—H18 | 0.9300 |
N3—C20 | 1.334 (3) | C18—C19 | 1.366 (4) |
C1—H1A | 0.9300 | C19—H19 | 0.9300 |
C1—C2 | 1.390 (3) | C19—C20 | 1.364 (4) |
C1—C6 | 1.376 (3) | C20—H20 | 0.9300 |
C2—H2 | 0.9300 | C21—H21 | 0.9300 |
C2—C3 | 1.365 (4) | C21—C22 | 1.385 (4) |
C3—H3 | 0.9300 | C21—C26 | 1.379 (3) |
C3—C4 | 1.371 (4) | C22—H22 | 0.9300 |
C4—H4 | 0.9300 | C22—C23 | 1.368 (4) |
C4—C5 | 1.385 (3) | C23—H23 | 0.9300 |
C5—H5 | 0.9300 | C23—C24 | 1.368 (4) |
C5—C6 | 1.392 (3) | C24—H24 | 0.9300 |
C6—C7 | 1.476 (2) | C24—C25 | 1.379 (3) |
C7—C8 | 1.368 (2) | C25—H25 | 0.9300 |
C8—C9 | 1.488 (2) | C25—C26 | 1.386 (3) |
C9—C10 | 1.384 (3) | C26—C27 | 1.507 (3) |
C9—C14 | 1.380 (3) | C27—H27A | 0.9700 |
C10—H10 | 0.9300 | C27—H27B | 0.9700 |
C10—C11 | 1.383 (3) | C27—C28 | 1.530 (2) |
C11—H11 | 0.9300 | C28—H28 | 0.9800 |
C11—C12 | 1.366 (5) | C28—C29 | 1.517 (3) |
C12—H12 | 0.9300 | C29—H29A | 0.98 (2) |
C12—C13 | 1.361 (5) | C29—H29B | 1.02 (2) |
C29—O1—H1 | 110 (2) | N3—C16—C15 | 118.61 (17) |
C15—N1—C7 | 106.63 (14) | N3—C16—C17 | 123.39 (18) |
C8—N2—C28 | 124.76 (14) | C17—C16—C15 | 117.91 (17) |
C15—N2—C8 | 106.54 (14) | C16—C17—H17 | 120.7 |
C15—N2—C28 | 128.55 (14) | C18—C17—C16 | 118.6 (2) |
C16—N3—C20 | 115.7 (2) | C18—C17—H17 | 120.7 |
C2—C1—H1A | 119.5 | C17—C18—H18 | 120.4 |
C6—C1—H1A | 119.5 | C19—C18—C17 | 119.1 (2) |
C6—C1—C2 | 121.0 (2) | C19—C18—H18 | 120.4 |
C1—C2—H2 | 119.9 | C18—C19—H19 | 121.1 |
C3—C2—C1 | 120.3 (2) | C20—C19—C18 | 117.8 (2) |
C3—C2—H2 | 119.9 | C20—C19—H19 | 121.1 |
C2—C3—H3 | 120.3 | N3—C20—C19 | 125.3 (2) |
C2—C3—C4 | 119.5 (2) | N3—C20—H20 | 117.3 |
C4—C3—H3 | 120.3 | C19—C20—H20 | 117.3 |
C3—C4—H4 | 119.6 | C22—C21—H21 | 119.4 |
C3—C4—C5 | 120.7 (3) | C26—C21—H21 | 119.4 |
C5—C4—H4 | 119.6 | C26—C21—C22 | 121.2 (2) |
C4—C5—H5 | 119.9 | C21—C22—H22 | 120.0 |
C4—C5—C6 | 120.3 (2) | C23—C22—C21 | 120.1 (3) |
C6—C5—H5 | 119.9 | C23—C22—H22 | 120.0 |
C1—C6—C5 | 118.20 (19) | C22—C23—H23 | 120.2 |
C1—C6—C7 | 122.82 (19) | C24—C23—C22 | 119.6 (3) |
C5—C6—C7 | 118.96 (19) | C24—C23—H23 | 120.2 |
N1—C7—C6 | 119.65 (16) | C23—C24—H24 | 119.8 |
C8—C7—N1 | 109.29 (15) | C23—C24—C25 | 120.3 (2) |
C8—C7—C6 | 131.02 (16) | C25—C24—H24 | 119.8 |
N2—C8—C9 | 121.99 (15) | C24—C25—H25 | 119.4 |
C7—C8—N2 | 106.12 (14) | C24—C25—C26 | 121.1 (2) |
C7—C8—C9 | 131.32 (15) | C26—C25—H25 | 119.4 |
C10—C9—C8 | 118.72 (18) | C21—C26—C25 | 117.7 (2) |
C14—C9—C8 | 122.0 (2) | C21—C26—C27 | 122.11 (18) |
C14—C9—C10 | 119.3 (2) | C25—C26—C27 | 120.24 (19) |
C9—C10—H10 | 120.2 | C26—C27—H27A | 108.9 |
C11—C10—C9 | 119.6 (3) | C26—C27—H27B | 108.9 |
C11—C10—H10 | 120.2 | C26—C27—C28 | 113.23 (14) |
C10—C11—H11 | 119.6 | H27A—C27—H27B | 107.7 |
C12—C11—C10 | 120.7 (3) | C28—C27—H27A | 108.9 |
C12—C11—H11 | 119.6 | C28—C27—H27B | 108.9 |
C11—C12—H12 | 120.1 | N2—C28—C27 | 112.40 (15) |
C13—C12—C11 | 119.8 (2) | N2—C28—H28 | 106.5 |
C13—C12—H12 | 120.1 | N2—C28—C29 | 111.11 (13) |
C12—C13—H13 | 119.8 | C27—C28—H28 | 106.5 |
C12—C13—C14 | 120.4 (3) | C29—C28—C27 | 113.22 (15) |
C14—C13—H13 | 119.8 | C29—C28—H28 | 106.5 |
C9—C14—C13 | 120.1 (3) | O1—C29—C28 | 109.65 (16) |
C9—C14—H14 | 119.9 | O1—C29—H29A | 113.2 (12) |
C13—C14—H14 | 119.9 | O1—C29—H29B | 108.3 (13) |
N1—C15—N2 | 111.42 (15) | C28—C29—H29A | 111.7 (12) |
N1—C15—C16 | 121.31 (15) | C28—C29—H29B | 107.3 (12) |
N2—C15—C16 | 127.12 (15) | H29A—C29—H29B | 106.5 (16) |
N1—C7—C8—N2 | −0.3 (2) | C10—C9—C14—C13 | 0.8 (3) |
N1—C7—C8—C9 | 170.93 (19) | C10—C11—C12—C13 | −0.5 (4) |
N1—C15—C16—N3 | −116.1 (2) | C11—C12—C13—C14 | 0.3 (4) |
N1—C15—C16—C17 | 60.7 (3) | C12—C13—C14—C9 | −0.5 (4) |
N2—C8—C9—C10 | 77.2 (2) | C14—C9—C10—C11 | −1.0 (3) |
N2—C8—C9—C14 | −102.9 (2) | C15—N1—C7—C6 | 178.44 (19) |
N2—C15—C16—N3 | 68.7 (3) | C15—N1—C7—C8 | 0.6 (2) |
N2—C15—C16—C17 | −114.5 (2) | C15—N2—C8—C7 | 0.0 (2) |
N2—C28—C29—O1 | 64.47 (19) | C15—N2—C8—C9 | −172.28 (17) |
N3—C16—C17—C18 | −1.9 (3) | C15—N2—C28—C27 | −72.9 (2) |
C1—C2—C3—C4 | 1.1 (4) | C15—N2—C28—C29 | 55.2 (2) |
C1—C6—C7—N1 | 147.0 (2) | C15—C16—C17—C18 | −178.6 (2) |
C1—C6—C7—C8 | −35.7 (3) | C16—N3—C20—C19 | −0.2 (4) |
C2—C1—C6—C5 | 0.9 (3) | C16—C17—C18—C19 | 0.6 (4) |
C2—C1—C6—C7 | −177.3 (2) | C17—C18—C19—C20 | 0.8 (4) |
C2—C3—C4—C5 | −0.4 (5) | C18—C19—C20—N3 | −1.0 (4) |
C3—C4—C5—C6 | −0.1 (5) | C20—N3—C16—C15 | 178.34 (19) |
C4—C5—C6—C1 | −0.2 (4) | C20—N3—C16—C17 | 1.7 (3) |
C4—C5—C6—C7 | 178.2 (2) | C21—C22—C23—C24 | −0.9 (4) |
C5—C6—C7—N1 | −31.3 (3) | C21—C26—C27—C28 | 108.7 (2) |
C5—C6—C7—C8 | 146.0 (2) | C22—C21—C26—C25 | 0.0 (3) |
C6—C1—C2—C3 | −1.4 (4) | C22—C21—C26—C27 | 179.8 (2) |
C6—C7—C8—N2 | −177.9 (2) | C22—C23—C24—C25 | 0.6 (4) |
C6—C7—C8—C9 | −6.6 (4) | C23—C24—C25—C26 | 0.0 (4) |
C7—N1—C15—N2 | −0.6 (2) | C24—C25—C26—C21 | −0.3 (3) |
C7—N1—C15—C16 | −176.46 (17) | C24—C25—C26—C27 | 179.95 (18) |
C7—C8—C9—C10 | −92.9 (3) | C25—C26—C27—C28 | −71.5 (2) |
C7—C8—C9—C14 | 87.0 (3) | C26—C21—C22—C23 | 0.6 (4) |
C8—N2—C15—N1 | 0.4 (2) | C26—C27—C28—N2 | −64.04 (19) |
C8—N2—C15—C16 | 175.96 (18) | C26—C27—C28—C29 | 169.04 (15) |
C8—N2—C28—C27 | 112.38 (18) | C27—C28—C29—O1 | −167.93 (15) |
C8—N2—C28—C29 | −119.57 (18) | C28—N2—C8—C7 | 175.71 (16) |
C8—C9—C10—C11 | 178.9 (2) | C28—N2—C8—C9 | 3.4 (3) |
C8—C9—C14—C13 | −179.1 (2) | C28—N2—C15—N1 | −175.13 (17) |
C9—C10—C11—C12 | 0.9 (4) | C28—N2—C15—C16 | 0.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C27—H27A···N3 | 0.97 | 2.42 | 3.277 (2) | 146 |
C22—H22···O1i | 0.93 | 2.54 | 3.350 (3) | 146 |
O1—H1···N1ii | 0.85 (3) | 1.94 (3) | 2.789 (2) | 174 (3) |
Symmetry codes: (i) x−1, y, z; (ii) x+1/2, −y+3/2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C29H25N3O |
Mr | 431.52 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 291 |
a, b, c (Å) | 9.2695 (4), 15.8818 (6), 16.0498 (6) |
V (Å3) | 2362.79 (16) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 0.58 |
Crystal size (mm) | 0.38 × 0.28 × 0.25 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Eos Gemini diffractometer |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2011) |
Tmin, Tmax | 0.809, 0.868 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9413, 4442, 3981 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.611 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.102, 1.04 |
No. of reflections | 4442 |
No. of parameters | 311 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.12, −0.13 |
Absolute structure | Flack (1983), 1871 Friedel pairs |
Absolute structure parameter | 0.2 (4) |
Computer programs: CrysAlis PRO (Agilent, 2011), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), OLEX2 (Dolomanov et al., 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C27—H27A···N3 | 0.97 | 2.42 | 3.277 (2) | 146 |
C22—H22···O1i | 0.93 | 2.54 | 3.350 (3) | 146 |
O1—H1···N1ii | 0.85 (3) | 1.94 (3) | 2.789 (2) | 174 (3) |
Symmetry codes: (i) x−1, y, z; (ii) x+1/2, −y+3/2, −z+1. |
Acknowledgements
The authors thank Ms Y. Zhu for technical assistance. This research was supported by the National Natural Science Foundation of the People's Republic of China (Nos. 20902017 and 21172055).
References
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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.
Our group is interested in the synthesis of chiral imidazole derivatives from natural precursors through a convenient four component–one pot synthetic protocol using an aldehyde, glyoxal, ammonia, and an amine (Mao et al., 2010). During our studies we observed that by carefully choosing the four components, a number of different imidazole derivatives could be obtained easily (Xiao et al., 2012). The condensation of L-phenylalaninol, dibenzoyl, 2-formyl pyridine and ammonium acetate afforded the title compound. This compound may serve as a starting material for the research of imidazolium based chiral ionic liquids in catalysis, chiral recognization and separation (Ding & Armstrong, 2005; Bwambok et al., 2008).
The molecular structure of the title compound is shown in Figure 1. As expected, the imidazole core (N1, C7, C8, N2, C15) is essentially planar, featuring an average deviation smaller than 0.6 (2) Å. The dihedral angle between the pyridyl and imidazole rings is 64.7 (3) °, and the dihedral angles between the two phenyl substituents and the imidazole ring are 33.5 (3)° and 81.2 (2)°, respectively. The chiral C28 atom maintains the S configuration of the L-phenylalaninol. The molecular conformation is enforced by an intramolecular C—H···N hydrogen bond (Table 1). In the crystal structure, molecules are linked by intermolecular O–H···N and C—H···O hydrogen bonds into chains parallel to the a axis.