organic compounds
2-[2-(5-Bromothiophen-2-yl)-4,5-diphenyl-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, C28H23BrN2OS, the dihedral angles formed by the imidazole ring with the 5-bromothiophenyl and phenyl rings are 76.90 (8), 34.02 (10) and 80.93 (11)°, respectively. The chiral centre maintains the S configuration of the L-phenylalaninol starting material. In the crystal, molecules are linked by O—H⋯N hydrogen bonds, forming chains running parallel to the a-axis direction.
Related literature
For the synthesis of imidazole rings, see: Jiang et al. (2009); Wu et al. (2010); Eseola et al. (2010). For related compounds synthesized by our group, see: Mao et al. (2010); Yang et al. (2012); 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/S1600536813021016/rz5079sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813021016/rz5079Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813021016/rz5079Isup3.cml
The starting materials, L-phenylalaninol, benzil, ammonium acetate and 5-bromothiophene-2-carbaldehyde, are commercially available. In a three-neck round-bottomed flask fitted with a reflux condenser, L-phenylalaninol (0.76 g, 5 mmol), molar equivalents benzil, ammonium acetate and 5-bromothiophene-2-carbaldehyde were dissolved in CH3OH (30 mL). The mixture was kept at 65°C for 12 h. The resulting solution was cooled to room temperature and evaporation of the solvent gave the crude product. Crystallization of the crude product in CH3OH afforded colourless crystals of the title compound.
The hydroxy H atom was located in a difference Fourier map and refined freely. All other H atoms were placed geometrically and refined as riding, 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. Aromatic, methylene and methyne hydrogen atoms are omitted for clarity. |
C28H23BrN2OS | F(000) = 1056 |
Mr = 515.45 | Dx = 1.429 Mg m−3 |
Orthorhombic, P212121 | Cu Kα radiation, λ = 1.5418 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 4493 reflections |
a = 9.36677 (18) Å | θ = 3.9–72.3° |
b = 15.8434 (3) Å | µ = 3.33 mm−1 |
c = 16.1452 (3) Å | T = 291 K |
V = 2395.97 (8) Å3 | Block, colourless |
Z = 4 | 0.3 × 0.28 × 0.26 mm |
Agilent Xcalibur (Eos, Gemini) diffractometer | 4264 independent reflections |
Radiation source: Enhance (Cu) X-ray Source | 4033 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.019 |
Detector resolution: 16.2312 pixels mm-1 | θmax = 67.1°, θmin = 3.9° |
ω scans | h = −11→7 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | k = −18→18 |
Tmin = 0.853, Tmax = 1.000 | l = −19→19 |
8866 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.033 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.085 | w = 1/[σ2(Fo2) + (0.0429P)2 + 0.2535P] where P = (Fo2 + 2Fc2)/3 |
S = 1.03 | (Δ/σ)max = 0.001 |
4264 reflections | Δρmax = 0.22 e Å−3 |
302 parameters | Δρmin = −0.44 e Å−3 |
0 restraints | Absolute structure: Flack (1983); 1834 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: −0.004 (16) |
C28H23BrN2OS | V = 2395.97 (8) Å3 |
Mr = 515.45 | Z = 4 |
Orthorhombic, P212121 | Cu Kα radiation |
a = 9.36677 (18) Å | µ = 3.33 mm−1 |
b = 15.8434 (3) Å | T = 291 K |
c = 16.1452 (3) Å | 0.3 × 0.28 × 0.26 mm |
Agilent Xcalibur (Eos, Gemini) diffractometer | 4264 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | 4033 reflections with I > 2σ(I) |
Tmin = 0.853, Tmax = 1.000 | Rint = 0.019 |
8866 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.085 | Δρmax = 0.22 e Å−3 |
S = 1.03 | Δρmin = −0.44 e Å−3 |
4264 reflections | Absolute structure: Flack (1983); 1834 Friedel pairs |
302 parameters | Absolute structure parameter: −0.004 (16) |
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 | ||
Br1 | 0.26010 (5) | 0.97884 (3) | 0.26215 (3) | 0.08774 (14) | |
S1 | 0.29866 (8) | 0.83956 (5) | 0.39570 (5) | 0.06109 (18) | |
O1 | 0.5090 (3) | 0.60857 (15) | 0.42808 (18) | 0.0755 (7) | |
H1 | 0.537 (4) | 0.658 (3) | 0.428 (3) | 0.093 (14)* | |
N1 | 0.1628 (2) | 0.73730 (13) | 0.56318 (13) | 0.0467 (4) | |
N2 | 0.2202 (2) | 0.62572 (12) | 0.48784 (12) | 0.0422 (4) | |
C1 | 0.1975 (3) | 0.75939 (19) | 0.74105 (18) | 0.0607 (6) | |
H1A | 0.2348 | 0.8022 | 0.7082 | 0.073* | |
C2 | 0.1762 (4) | 0.7731 (2) | 0.8247 (2) | 0.0731 (9) | |
H2 | 0.2011 | 0.8246 | 0.8481 | 0.088* | |
C3 | 0.1178 (4) | 0.7098 (2) | 0.87404 (18) | 0.0737 (9) | |
H3 | 0.1026 | 0.7192 | 0.9302 | 0.088* | |
C4 | 0.0831 (4) | 0.6345 (2) | 0.83955 (19) | 0.0667 (8) | |
H4 | 0.0435 | 0.5923 | 0.8723 | 0.080* | |
C5 | 0.1059 (3) | 0.61977 (17) | 0.75615 (17) | 0.0561 (6) | |
H5 | 0.0825 | 0.5675 | 0.7337 | 0.067* | |
C6 | 0.1632 (3) | 0.68165 (16) | 0.70573 (15) | 0.0464 (5) | |
C7 | 0.1817 (2) | 0.67005 (15) | 0.61521 (14) | 0.0429 (5) | |
C8 | 0.2177 (2) | 0.59945 (14) | 0.57013 (14) | 0.0412 (5) | |
C9 | 0.2546 (3) | 0.51201 (13) | 0.59565 (14) | 0.0445 (5) | |
C10 | 0.3964 (3) | 0.48806 (18) | 0.6020 (2) | 0.0628 (7) | |
H10 | 0.4682 | 0.5264 | 0.5892 | 0.075* | |
C11 | 0.4316 (5) | 0.4072 (2) | 0.6272 (3) | 0.0819 (11) | |
H11 | 0.5269 | 0.3913 | 0.6313 | 0.098* | |
C12 | 0.3253 (5) | 0.3500 (2) | 0.6463 (2) | 0.0811 (11) | |
H12 | 0.3488 | 0.2959 | 0.6641 | 0.097* | |
C13 | 0.1856 (5) | 0.3734 (2) | 0.6388 (2) | 0.0772 (10) | |
H13 | 0.1139 | 0.3348 | 0.6512 | 0.093* | |
C14 | 0.1495 (3) | 0.45393 (19) | 0.61287 (19) | 0.0601 (7) | |
H14 | 0.0539 | 0.4688 | 0.6071 | 0.072* | |
C15 | 0.0418 (3) | 0.41288 (18) | 0.4051 (2) | 0.0625 (7) | |
H15 | 0.1258 | 0.3886 | 0.3856 | 0.075* | |
C16 | −0.0611 (4) | 0.3619 (2) | 0.4394 (2) | 0.0754 (9) | |
H16 | −0.0465 | 0.3040 | 0.4427 | 0.091* | |
C17 | −0.1868 (4) | 0.3970 (3) | 0.4690 (2) | 0.0799 (10) | |
H17 | −0.2571 | 0.3627 | 0.4919 | 0.096* | |
C18 | −0.2062 (4) | 0.4825 (3) | 0.4643 (2) | 0.0789 (9) | |
H18 | −0.2897 | 0.5067 | 0.4845 | 0.095* | |
C19 | −0.1017 (3) | 0.5331 (2) | 0.42947 (19) | 0.0636 (7) | |
H19 | −0.1162 | 0.5911 | 0.4267 | 0.076* | |
C20 | 0.0242 (3) | 0.49927 (17) | 0.39859 (16) | 0.0512 (6) | |
C21 | 0.1378 (3) | 0.55276 (18) | 0.35912 (15) | 0.0514 (6) | |
H21A | 0.0956 | 0.6056 | 0.3412 | 0.062* | |
H21B | 0.1737 | 0.5240 | 0.3104 | 0.062* | |
C22 | 0.2629 (3) | 0.57177 (13) | 0.41736 (14) | 0.0440 (5) | |
H22 | 0.2925 | 0.5176 | 0.4410 | 0.053* | |
C23 | 0.3935 (3) | 0.60763 (16) | 0.37267 (17) | 0.0515 (6) | |
H23A | 0.4164 | 0.5730 | 0.3250 | 0.062* | |
H23B | 0.3736 | 0.6645 | 0.3535 | 0.062* | |
C24 | 0.1849 (3) | 0.70913 (15) | 0.48779 (15) | 0.0440 (5) | |
C25 | 0.1707 (3) | 0.76397 (15) | 0.41474 (15) | 0.0479 (5) | |
C26 | 0.0587 (4) | 0.7737 (2) | 0.3627 (2) | 0.0661 (8) | |
H26 | −0.0214 | 0.7391 | 0.3639 | 0.079* | |
C27 | 0.0743 (4) | 0.8412 (2) | 0.3063 (2) | 0.0672 (8) | |
H27 | 0.0069 | 0.8558 | 0.2665 | 0.081* | |
C28 | 0.1975 (3) | 0.88144 (18) | 0.31747 (17) | 0.0582 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0876 (2) | 0.0822 (2) | 0.0934 (3) | 0.00601 (19) | 0.0010 (2) | 0.04352 (19) |
S1 | 0.0579 (4) | 0.0608 (4) | 0.0646 (4) | −0.0061 (3) | −0.0146 (3) | 0.0179 (3) |
O1 | 0.0605 (12) | 0.0598 (12) | 0.1062 (19) | −0.0204 (10) | −0.0170 (12) | 0.0204 (13) |
N1 | 0.0503 (11) | 0.0417 (10) | 0.0482 (10) | 0.0091 (9) | 0.0002 (9) | −0.0031 (8) |
N2 | 0.0445 (10) | 0.0396 (9) | 0.0424 (9) | 0.0005 (8) | −0.0027 (8) | −0.0058 (7) |
C1 | 0.0658 (15) | 0.0574 (14) | 0.0588 (15) | 0.0018 (13) | 0.0066 (13) | −0.0128 (13) |
C2 | 0.082 (2) | 0.0712 (19) | 0.0659 (18) | 0.0060 (17) | 0.0016 (16) | −0.0252 (16) |
C3 | 0.089 (2) | 0.086 (2) | 0.0468 (14) | 0.0267 (19) | 0.0031 (15) | −0.0161 (15) |
C4 | 0.081 (2) | 0.0697 (19) | 0.0492 (15) | 0.0164 (16) | 0.0028 (15) | 0.0049 (14) |
C5 | 0.0658 (15) | 0.0532 (14) | 0.0493 (14) | 0.0095 (12) | 0.0009 (13) | −0.0003 (12) |
C6 | 0.0430 (12) | 0.0497 (13) | 0.0465 (12) | 0.0116 (10) | −0.0045 (10) | −0.0066 (10) |
C7 | 0.0429 (11) | 0.0438 (11) | 0.0419 (11) | 0.0059 (10) | 0.0007 (9) | −0.0027 (10) |
C8 | 0.0394 (12) | 0.0403 (10) | 0.0438 (11) | −0.0012 (9) | −0.0037 (9) | −0.0025 (9) |
C9 | 0.0522 (12) | 0.0398 (10) | 0.0416 (10) | 0.0021 (10) | −0.0035 (10) | −0.0058 (8) |
C10 | 0.0583 (16) | 0.0536 (15) | 0.0765 (18) | 0.0071 (13) | −0.0085 (15) | −0.0030 (15) |
C11 | 0.085 (2) | 0.070 (2) | 0.092 (3) | 0.0318 (19) | −0.016 (2) | −0.0027 (19) |
C12 | 0.135 (3) | 0.0417 (14) | 0.0667 (19) | 0.0170 (19) | −0.007 (2) | 0.0008 (14) |
C13 | 0.112 (3) | 0.0451 (15) | 0.074 (2) | −0.0154 (17) | 0.003 (2) | 0.0015 (14) |
C14 | 0.0639 (17) | 0.0530 (14) | 0.0633 (16) | −0.0069 (13) | 0.0005 (14) | −0.0037 (13) |
C15 | 0.0645 (17) | 0.0576 (16) | 0.0654 (17) | −0.0092 (13) | −0.0040 (14) | −0.0081 (14) |
C16 | 0.093 (2) | 0.0605 (18) | 0.073 (2) | −0.0212 (17) | −0.0041 (19) | 0.0017 (15) |
C17 | 0.075 (2) | 0.099 (3) | 0.0658 (19) | −0.035 (2) | −0.0058 (17) | 0.0093 (18) |
C18 | 0.0549 (17) | 0.110 (3) | 0.0721 (19) | −0.0020 (18) | 0.0054 (14) | 0.0033 (19) |
C19 | 0.0636 (17) | 0.0641 (17) | 0.0633 (16) | 0.0032 (14) | −0.0007 (14) | −0.0025 (14) |
C20 | 0.0532 (14) | 0.0564 (14) | 0.0441 (12) | −0.0059 (11) | −0.0097 (11) | −0.0081 (11) |
C21 | 0.0592 (15) | 0.0526 (14) | 0.0426 (12) | −0.0050 (12) | −0.0050 (11) | −0.0059 (11) |
C22 | 0.0501 (12) | 0.0370 (9) | 0.0451 (11) | −0.0024 (10) | 0.0006 (11) | −0.0057 (8) |
C23 | 0.0566 (15) | 0.0424 (12) | 0.0556 (14) | −0.0028 (11) | 0.0051 (12) | −0.0070 (11) |
C24 | 0.0435 (12) | 0.0419 (11) | 0.0466 (12) | 0.0026 (10) | −0.0036 (10) | −0.0005 (10) |
C25 | 0.0509 (13) | 0.0442 (12) | 0.0486 (12) | 0.0049 (10) | −0.0007 (11) | −0.0029 (10) |
C26 | 0.0626 (17) | 0.0566 (15) | 0.079 (2) | −0.0013 (13) | −0.0202 (16) | 0.0057 (15) |
C27 | 0.0716 (19) | 0.0643 (17) | 0.0658 (18) | 0.0079 (16) | −0.0233 (15) | 0.0063 (15) |
C28 | 0.0672 (17) | 0.0532 (14) | 0.0544 (14) | 0.0103 (13) | −0.0025 (13) | 0.0117 (12) |
Br1—C28 | 1.877 (3) | C12—H12 | 0.9300 |
S1—C25 | 1.722 (3) | C12—C13 | 1.366 (6) |
S1—C28 | 1.713 (3) | C13—H13 | 0.9300 |
O1—H1 | 0.83 (4) | C13—C14 | 1.385 (5) |
O1—C23 | 1.404 (4) | C14—H14 | 0.9300 |
N1—C7 | 1.368 (3) | C15—H15 | 0.9300 |
N1—C24 | 1.313 (3) | C15—C16 | 1.374 (5) |
N2—C8 | 1.392 (3) | C15—C20 | 1.383 (4) |
N2—C22 | 1.478 (3) | C16—H16 | 0.9300 |
N2—C24 | 1.362 (3) | C16—C17 | 1.386 (6) |
C1—H1A | 0.9300 | C17—H17 | 0.9300 |
C1—C2 | 1.383 (4) | C17—C18 | 1.370 (5) |
C1—C6 | 1.395 (4) | C18—H18 | 0.9300 |
C2—H2 | 0.9300 | C18—C19 | 1.383 (5) |
C2—C3 | 1.392 (5) | C19—H19 | 0.9300 |
C3—H3 | 0.9300 | C19—C20 | 1.388 (4) |
C3—C4 | 1.357 (5) | C20—C21 | 1.502 (4) |
C4—H4 | 0.9300 | C21—H21A | 0.9700 |
C4—C5 | 1.383 (4) | C21—H21B | 0.9700 |
C5—H5 | 0.9300 | C21—C22 | 1.532 (3) |
C5—C6 | 1.382 (4) | C22—H22 | 0.9800 |
C6—C7 | 1.483 (3) | C22—C23 | 1.530 (4) |
C7—C8 | 1.377 (3) | C23—H23A | 0.9700 |
C8—C9 | 1.486 (3) | C23—H23B | 0.9700 |
C9—C10 | 1.385 (4) | C24—C25 | 1.471 (3) |
C9—C14 | 1.376 (4) | C25—C26 | 1.352 (4) |
C10—H10 | 0.9300 | C26—H26 | 0.9300 |
C10—C11 | 1.385 (4) | C26—C27 | 1.412 (4) |
C11—H11 | 0.9300 | C27—H27 | 0.9300 |
C11—C12 | 1.381 (6) | C27—C28 | 1.331 (5) |
C28—S1—C25 | 90.92 (14) | C20—C15—H15 | 119.1 |
C23—O1—H1 | 105 (3) | C15—C16—H16 | 120.0 |
C24—N1—C7 | 106.5 (2) | C15—C16—C17 | 120.0 (3) |
C8—N2—C22 | 124.47 (19) | C17—C16—H16 | 120.0 |
C24—N2—C8 | 106.65 (19) | C16—C17—H17 | 120.4 |
C24—N2—C22 | 128.8 (2) | C18—C17—C16 | 119.3 (3) |
C2—C1—H1A | 119.8 | C18—C17—H17 | 120.4 |
C2—C1—C6 | 120.3 (3) | C17—C18—H18 | 119.9 |
C6—C1—H1A | 119.8 | C17—C18—C19 | 120.1 (3) |
C1—C2—H2 | 119.9 | C19—C18—H18 | 119.9 |
C1—C2—C3 | 120.2 (3) | C18—C19—H19 | 119.2 |
C3—C2—H2 | 119.9 | C18—C19—C20 | 121.6 (3) |
C2—C3—H3 | 120.2 | C20—C19—H19 | 119.2 |
C4—C3—C2 | 119.5 (3) | C15—C20—C19 | 117.2 (3) |
C4—C3—H3 | 120.2 | C15—C20—C21 | 120.4 (3) |
C3—C4—H4 | 119.6 | C19—C20—C21 | 122.5 (3) |
C3—C4—C5 | 120.7 (3) | C20—C21—H21A | 109.0 |
C5—C4—H4 | 119.6 | C20—C21—H21B | 109.0 |
C4—C5—H5 | 119.6 | C20—C21—C22 | 113.1 (2) |
C6—C5—C4 | 120.9 (3) | H21A—C21—H21B | 107.8 |
C6—C5—H5 | 119.6 | C22—C21—H21A | 109.0 |
C1—C6—C7 | 119.0 (3) | C22—C21—H21B | 109.0 |
C5—C6—C1 | 118.4 (3) | N2—C22—C21 | 112.3 (2) |
C5—C6—C7 | 122.5 (2) | N2—C22—H22 | 106.5 |
N1—C7—C6 | 119.6 (2) | N2—C22—C23 | 111.38 (19) |
N1—C7—C8 | 109.9 (2) | C21—C22—H22 | 106.5 |
C8—C7—C6 | 130.6 (2) | C23—C22—C21 | 113.3 (2) |
N2—C8—C9 | 122.65 (19) | C23—C22—H22 | 106.5 |
C7—C8—N2 | 105.4 (2) | O1—C23—C22 | 108.6 (2) |
C7—C8—C9 | 131.9 (2) | O1—C23—H23A | 110.0 |
C10—C9—C8 | 119.9 (2) | O1—C23—H23B | 110.0 |
C14—C9—C8 | 120.9 (2) | C22—C23—H23A | 110.0 |
C14—C9—C10 | 119.2 (3) | C22—C23—H23B | 110.0 |
C9—C10—H10 | 119.9 | H23A—C23—H23B | 108.3 |
C11—C10—C9 | 120.2 (3) | N1—C24—N2 | 111.6 (2) |
C11—C10—H10 | 119.9 | N1—C24—C25 | 121.9 (2) |
C10—C11—H11 | 120.0 | N2—C24—C25 | 126.5 (2) |
C12—C11—C10 | 120.1 (3) | C24—C25—S1 | 119.39 (19) |
C12—C11—H11 | 120.0 | C26—C25—S1 | 110.4 (2) |
C11—C12—H12 | 120.2 | C26—C25—C24 | 129.5 (3) |
C13—C12—C11 | 119.5 (3) | C25—C26—H26 | 123.0 |
C13—C12—H12 | 120.2 | C25—C26—C27 | 114.0 (3) |
C12—C13—H13 | 119.6 | C27—C26—H26 | 123.0 |
C12—C13—C14 | 120.7 (3) | C26—C27—H27 | 124.3 |
C14—C13—H13 | 119.6 | C28—C27—C26 | 111.4 (3) |
C9—C14—C13 | 120.2 (3) | C28—C27—H27 | 124.3 |
C9—C14—H14 | 119.9 | S1—C28—Br1 | 119.80 (18) |
C13—C14—H14 | 119.9 | C27—C28—Br1 | 126.9 (2) |
C16—C15—H15 | 119.1 | C27—C28—S1 | 113.2 (2) |
C16—C15—C20 | 121.9 (3) | ||
S1—C25—C26—C27 | 0.6 (4) | C10—C11—C12—C13 | 1.0 (6) |
N1—C7—C8—N2 | −0.1 (3) | C11—C12—C13—C14 | −0.5 (6) |
N1—C7—C8—C9 | 177.5 (2) | C12—C13—C14—C9 | −1.1 (5) |
N1—C24—C25—S1 | 72.7 (3) | C14—C9—C10—C11 | −1.5 (5) |
N1—C24—C25—C26 | −96.9 (4) | C15—C16—C17—C18 | −0.5 (5) |
N2—C8—C9—C10 | 79.5 (3) | C15—C20—C21—C22 | −79.7 (3) |
N2—C8—C9—C14 | −100.2 (3) | C16—C15—C20—C19 | 0.9 (5) |
N2—C22—C23—O1 | 62.7 (3) | C16—C15—C20—C21 | −178.7 (3) |
N2—C24—C25—S1 | −107.7 (3) | C16—C17—C18—C19 | 0.6 (5) |
N2—C24—C25—C26 | 82.7 (4) | C17—C18—C19—C20 | 0.1 (5) |
C1—C2—C3—C4 | 0.6 (6) | C18—C19—C20—C15 | −0.9 (4) |
C1—C6—C7—N1 | −31.8 (4) | C18—C19—C20—C21 | 178.8 (3) |
C1—C6—C7—C8 | 147.7 (3) | C19—C20—C21—C22 | 100.6 (3) |
C2—C1—C6—C5 | 1.0 (4) | C20—C15—C16—C17 | −0.3 (5) |
C2—C1—C6—C7 | 177.5 (3) | C20—C21—C22—N2 | −66.4 (3) |
C2—C3—C4—C5 | 0.4 (5) | C20—C21—C22—C23 | 166.3 (2) |
C3—C4—C5—C6 | −0.7 (5) | C21—C22—C23—O1 | −169.6 (2) |
C4—C5—C6—C1 | 0.0 (4) | C22—N2—C8—C7 | 176.0 (2) |
C4—C5—C6—C7 | −176.4 (3) | C22—N2—C8—C9 | −1.8 (4) |
C5—C6—C7—N1 | 144.6 (3) | C22—N2—C24—N1 | −175.4 (2) |
C5—C6—C7—C8 | −35.8 (4) | C22—N2—C24—C25 | 5.0 (4) |
C6—C1—C2—C3 | −1.3 (5) | C24—N1—C7—C6 | −179.7 (2) |
C6—C7—C8—N2 | −179.6 (2) | C24—N1—C7—C8 | 0.6 (3) |
C6—C7—C8—C9 | −2.1 (5) | C24—N2—C8—C7 | −0.5 (3) |
C7—N1—C24—N2 | −1.0 (3) | C24—N2—C8—C9 | −178.3 (2) |
C7—N1—C24—C25 | 178.6 (2) | C24—N2—C22—C21 | −71.2 (3) |
C7—C8—C9—C10 | −97.7 (3) | C24—N2—C22—C23 | 57.1 (3) |
C7—C8—C9—C14 | 82.6 (3) | C24—C25—C26—C27 | 170.9 (3) |
C8—N2—C22—C21 | 113.1 (2) | C25—S1—C28—Br1 | 176.47 (18) |
C8—N2—C22—C23 | −118.7 (2) | C25—S1—C28—C27 | 0.2 (3) |
C8—N2—C24—N1 | 1.0 (3) | C25—C26—C27—C28 | −0.4 (4) |
C8—N2—C24—C25 | −178.6 (2) | C26—C27—C28—Br1 | −175.9 (2) |
C8—C9—C10—C11 | 178.8 (3) | C26—C27—C28—S1 | 0.1 (4) |
C8—C9—C14—C13 | −178.2 (3) | C28—S1—C25—C24 | −171.9 (2) |
C9—C10—C11—C12 | −0.1 (6) | C28—S1—C25—C26 | −0.5 (2) |
C10—C9—C14—C13 | 2.1 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1i | 0.83 (4) | 2.04 (4) | 2.838 (3) | 162 (4) |
Symmetry code: (i) x+1/2, −y+3/2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1i | 0.83 (4) | 2.04 (4) | 2.838 (3) | 162 (4) |
Symmetry code: (i) 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 P. R. China (No. 21172055) and the High-Level Talents Foundation of Henan University of Technology.
References
Agilent (2011). CrysAlis PRO. Agilent Technologies UK Ltd, Yarnton, England. Google Scholar
Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst. 42, 339–341. Web of Science CrossRef CAS IUCr Journals Google Scholar
Eseola, A. O., Zhang, M., Xiang, J., Zuo, W., Li, Y., Woods, J. A. O. & Sun, W. (2010). Inorg. Chim. Acta, 363, 1970–1978. Web of Science CSD CrossRef CAS Google Scholar
Flack, H. D. (1983). Acta Cryst. A39, 876–881. CrossRef CAS Web of Science IUCr Journals Google Scholar
Jiang, B., Wang, X., Shi, F., Tu, S., Ai, T., Ballew, A. & Li, G. (2009). J. Org. Chem. 74, 9486–9489. Web of Science CrossRef PubMed CAS Google Scholar
Mao, P., Cai, Y., Xiao, Y., Yang, L., Xue, Y. & Song, M. (2010). Phosphorus Sulfur Silicon Relat. Elem. 185, 2418–2425. Web of Science CrossRef CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wu, X., Jiang, R., Xu, X., Su, X., Lu, W. & Ji, S. (2010). J. Comb. Chem. 12, 829–835. Web of Science CSD CrossRef CAS PubMed Google Scholar
Xiao, Y., Yang, L., He, K., Yuan, J. & Mao, P. (2012). Acta Cryst. E68, o264. Web of Science CSD CrossRef IUCr Journals Google Scholar
Yang, L., Xiao, Y., He, K., Yuan, J. & Mao, P. (2012). Acta Cryst. E68, o1670. CSD CrossRef IUCr Journals 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 development of imidazoles with an heterocyclic substituent in 2-position from readily available inexpensive starting materials has been an active topic in modern organic chemistry (Jiang et al., 2009; Wu et al., 2010; Eseola et al., 2010). Our group is interested in the research of chiral imidazolium derivatives derived from natural amino acids (Mao et al., 2010; Yang et al., 2012; Xiao et al., 2012). A convenient and highly efficient one-pot-multicomponent protocol has been developed for the synthesis of the title compound from L-phenylalaninol, 5-bromothiophene-2-carbaldehyde, dibenzoyl and ammonium acetate.
The molecular structure of the title compound is shown in Figure 1. As expected, the imidazole core (C7/C8/N2/C24/N1) is essentially planar, the maximum deviation being 0.008 (3) Å for atom C24. The dihedral angle between the 5-bromothiophenyl ring and imidazole ring is 76.90 (8)°. The dihedral angles between the two phenyl substituents (C1–C6, C9–C14) and the imidazole ring are 34.02 (10)° and 80.93 (11)°, respectively. The chiral C22 carbon atom maintains the S configuration of the L-phenylalaninol starting material. In the crystal, intermolecular O—H···N hydrogen bonds (Table 1) link molecules into chains running parallel to the a axis.