organic compounds
5-(4-Methylphenyl)-2,3-diphenyl-5,6-dihydroimidazo[1,2-c]quinazoline
aKey Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu 214063, People's Republic of China
*Correspondence e-mail: xingqin118@126.com
In the title compound, C29H23N3, the pyrimidine ring adopts an The dihedral angle between the phenyl rings attached to the pyrimidine-ring double bond is 62.09 (7)°. In the crystal, molecules are linked by N—H⋯N hydrogen bonds, forming extended chains in the c-axis direction
Related literature
For background to quinazolines, see: Blackman et al. (1987); Billimora & Cava (1994); Helissey et al. (1994); Brana et al. (1994); Riou et al. (1991); Ibrahim et al. (1988); Shi et al. (1993, 2003); McMurry (1983). For ttypical Csp2—N bond distances, see: Lorente et al. (1995).
Experimental
Crystal data
|
Refinement
|
Data collection: SMART (Bruker, 1998); cell SAINT (Bruker, 1999); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810038961/vm2044sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810038961/vm2044Isup2.hkl
The title compound, (I), was prepared by the reaction of 4,5-diphenyl-2-(2-nitrophenyl)imidazole with 4-methylbenzaldehyde oxime, induced by low-valent titanium reagent (TiCl4/Sm). The single crystals of (I) suitable for X-ray diffraction were obtained by slow evaporation of a ethanol solution. 1H NMR (DMSO-d6, δ): 2.18 (3H, s, CH3), 6.32 (1H, d, J = 2.4 Hz, CH), 6.72 (2H, d, J = 8.4 Hz, ArH), 6.77–6.82 (2H, m, ArH), 7.01 (2H, d, J = 8.0 Hz, ArH), 7.09–7.26 (6H, m, ArH), 7.33 (1H, d, J = 2.4 Hz, ArH), 7.38–7.44 (3H, m, ArH), 7.51 (2H, d, J = 8.8 Hz, ArH), 7.84 (1H, d, J = 7.6 Hz, NH).
H atoms were positioned geometrically and treated as riding on their parent atoms, with C—H distances in the range 0.93–0.98Å and N—H distance of 0.86 Å; the Uiso(H) values were set equal to 1.2–1.5Ueq(C).
Quinazolines are an important class of compounds found in many natural products (e.g. hinckdentin A, Blackman et al., 1987; Billimora & Cava, 1994), and employed as potent agents (Helissey et al., 1994; Brana et al., 1994; Riou et al., 1991; Ibrahim et al., 1988). Low-valent titanium reagents have an exceedingly high ability to promote reductive coupling of
and are attracting increasing interest in organic synthesis (McMurry, 1983; Shi et al., 1993; 2003).We report here the
of the title compound, (I), which was synthesized by the reaction of 4,5-diphenyl-2-(2-nitrophenyl)imidazole with 4-methylbenzaldehyde oxime, induced by low-valent titanium reagent (TiCl4/Sm) using THF as solvent at refluxing temperature.In (I), atoms N1, C1, N2, C4, C5 and C10 form a fused pyrimidine ring, with interatomic distances of 1.445 (3)Å for N1—C1 and 1.475 (3)Å for N2—C1, which indicate that these C—N bonds are single. The pyrimidine ring adopts an
atoms N1, N2, C4, C5 and C10 are coplanar, while atom C1 deviates from this plane by -0.383 (3) Å. The dihedral angle between the C18—C23 and C24—C29 phenyl rings is 62.09 (7)°. In addition, because of the existence of a the N1—C10 [1.384 (3) Å], N2—C2 [1.382 (3) Å] and N2—C4 [1.362 (3) Å] distances are significantly shorter than the typical Csp2—N bond distnec (1.426 Å; Lorente et al., 1995). The molecules are linked by N—H···N hydrogen bonds to form extended chains in the c direction (Table 1, Fig. 2).For background to quinazolines, see: Blackman et al. (1987); Billimora & Cava (1994); Helissey et al. (1994); Brana et al. (1994); Riou et al. (1991); Ibrahim et al. (1988); Shi et al. (1993, 2003); McMurry (1983). For ttypical Csp2—N bond distances, see: Lorente et al. (1995).
Data collection: SMART (Bruker, 1998); cell
SAINT (Bruker, 1999); data reduction: SAINT (Bruker, 1999); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of (I), showing 40% probability displacement ellipsoids and the atom-numbering scheme. | |
Fig. 2. The crystal packing of (I). |
C29H23N3 | F(000) = 872 |
Mr = 413.50 | Dx = 1.267 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2039 reflections |
a = 16.006 (4) Å | θ = 2.6–23.2° |
b = 11.382 (3) Å | µ = 0.08 mm−1 |
c = 11.906 (3) Å | T = 298 K |
β = 91.810 (4)° | Block, yellow |
V = 2167.8 (10) Å3 | 0.44 × 0.42 × 0.33 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 3819 independent reflections |
Radiation source: fine-focus sealed tube | 2071 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
φ and ω scans | θmax = 25.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −18→19 |
Tmin = 0.968, Tmax = 0.976 | k = −10→13 |
11276 measured reflections | l = −14→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)] = 0.047 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.146 | H-atom parameters constrained |
S = 0.95 | w = 1/[σ2(Fo2) + (0.0596P)2 + 0.8501P] where P = (Fo2 + 2Fc2)/3 |
3819 reflections | (Δ/σ)max < 0.001 |
289 parameters | Δρmax = 0.21 e Å−3 |
0 restraints | Δρmin = −0.25 e Å−3 |
C29H23N3 | V = 2167.8 (10) Å3 |
Mr = 413.50 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 16.006 (4) Å | µ = 0.08 mm−1 |
b = 11.382 (3) Å | T = 298 K |
c = 11.906 (3) Å | 0.44 × 0.42 × 0.33 mm |
β = 91.810 (4)° |
Bruker SMART CCD area-detector diffractometer | 3819 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2071 reflections with I > 2σ(I) |
Tmin = 0.968, Tmax = 0.976 | Rint = 0.038 |
11276 measured reflections |
R[F2 > 2σ(F2)] = 0.047 | 0 restraints |
wR(F2) = 0.146 | H-atom parameters constrained |
S = 0.95 | Δρmax = 0.21 e Å−3 |
3819 reflections | Δρmin = −0.25 e Å−3 |
289 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 | ||
N1 | 0.14553 (14) | 0.83172 (18) | 0.85068 (18) | 0.0517 (6) | |
H1A | 0.1495 | 0.8943 | 0.8910 | 0.062* | |
N2 | 0.21849 (13) | 0.69225 (17) | 0.74512 (16) | 0.0418 (5) | |
N3 | 0.16675 (13) | 0.59511 (17) | 0.59709 (16) | 0.0429 (5) | |
C1 | 0.21383 (16) | 0.7487 (2) | 0.8563 (2) | 0.0442 (6) | |
H1 | 0.2657 | 0.7927 | 0.8704 | 0.053* | |
C2 | 0.28310 (15) | 0.6234 (2) | 0.7078 (2) | 0.0421 (6) | |
C3 | 0.24973 (16) | 0.5649 (2) | 0.6166 (2) | 0.0423 (6) | |
C4 | 0.15000 (16) | 0.6717 (2) | 0.67723 (19) | 0.0405 (6) | |
C5 | 0.07381 (16) | 0.7354 (2) | 0.6952 (2) | 0.0422 (6) | |
C6 | 0.00388 (17) | 0.7246 (2) | 0.6248 (2) | 0.0513 (7) | |
H6 | 0.0039 | 0.6710 | 0.5658 | 0.062* | |
C7 | −0.06578 (18) | 0.7928 (3) | 0.6415 (3) | 0.0618 (8) | |
H7 | −0.1127 | 0.7855 | 0.5939 | 0.074* | |
C8 | −0.06544 (19) | 0.8721 (3) | 0.7295 (3) | 0.0640 (8) | |
H8 | −0.1124 | 0.9181 | 0.7407 | 0.077* | |
C9 | 0.00313 (19) | 0.8838 (2) | 0.8003 (2) | 0.0576 (8) | |
H9 | 0.0024 | 0.9371 | 0.8594 | 0.069* | |
C10 | 0.07411 (17) | 0.8157 (2) | 0.7839 (2) | 0.0455 (7) | |
C11 | 0.20700 (16) | 0.6564 (2) | 0.9477 (2) | 0.0435 (6) | |
C12 | 0.13376 (18) | 0.5960 (2) | 0.9621 (2) | 0.0557 (7) | |
H12 | 0.0878 | 0.6108 | 0.9144 | 0.067* | |
C13 | 0.1277 (2) | 0.5138 (2) | 1.0465 (2) | 0.0653 (8) | |
H13 | 0.0775 | 0.4742 | 1.0552 | 0.078* | |
C14 | 0.1946 (2) | 0.4892 (2) | 1.1179 (2) | 0.0602 (8) | |
C15 | 0.2675 (2) | 0.5504 (3) | 1.1031 (2) | 0.0650 (8) | |
H15 | 0.3134 | 0.5355 | 1.1508 | 0.078* | |
C16 | 0.27413 (18) | 0.6330 (2) | 1.0196 (2) | 0.0557 (7) | |
H16 | 0.3242 | 0.6732 | 1.0116 | 0.067* | |
C17 | 0.1870 (3) | 0.4005 (3) | 1.2109 (3) | 0.0974 (13) | |
H17A | 0.1699 | 0.4394 | 1.2779 | 0.146* | |
H17B | 0.2401 | 0.3631 | 1.2249 | 0.146* | |
H17C | 0.1461 | 0.3424 | 1.1890 | 0.146* | |
C18 | 0.36672 (16) | 0.6215 (2) | 0.7620 (2) | 0.0451 (6) | |
C19 | 0.41102 (18) | 0.7239 (3) | 0.7841 (2) | 0.0558 (7) | |
H19 | 0.3885 | 0.7957 | 0.7613 | 0.067* | |
C20 | 0.48788 (19) | 0.7208 (3) | 0.8393 (3) | 0.0666 (9) | |
H20 | 0.5163 | 0.7904 | 0.8552 | 0.080* | |
C21 | 0.5223 (2) | 0.6158 (3) | 0.8708 (3) | 0.0735 (10) | |
H21 | 0.5742 | 0.6137 | 0.9083 | 0.088* | |
C22 | 0.48048 (19) | 0.5135 (3) | 0.8470 (3) | 0.0669 (9) | |
H22 | 0.5046 | 0.4419 | 0.8673 | 0.080* | |
C23 | 0.40312 (17) | 0.5155 (3) | 0.7934 (2) | 0.0559 (7) | |
H23 | 0.3751 | 0.4454 | 0.7781 | 0.067* | |
C24 | 0.29181 (16) | 0.4794 (2) | 0.5439 (2) | 0.0442 (6) | |
C25 | 0.25755 (18) | 0.3695 (2) | 0.5252 (2) | 0.0576 (8) | |
H25 | 0.2068 | 0.3504 | 0.5563 | 0.069* | |
C26 | 0.2981 (2) | 0.2877 (3) | 0.4605 (3) | 0.0681 (9) | |
H26 | 0.2755 | 0.2131 | 0.4501 | 0.082* | |
C27 | 0.3716 (2) | 0.3166 (3) | 0.4118 (3) | 0.0672 (9) | |
H27 | 0.3985 | 0.2619 | 0.3677 | 0.081* | |
C28 | 0.40545 (19) | 0.4259 (3) | 0.4280 (2) | 0.0649 (8) | |
H28 | 0.4551 | 0.4457 | 0.3942 | 0.078* | |
C29 | 0.36592 (17) | 0.5066 (2) | 0.4945 (2) | 0.0551 (7) | |
H29 | 0.3897 | 0.5804 | 0.5061 | 0.066* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0703 (16) | 0.0421 (13) | 0.0425 (13) | 0.0085 (11) | 0.0006 (12) | −0.0063 (10) |
N2 | 0.0491 (13) | 0.0440 (12) | 0.0324 (11) | 0.0006 (10) | 0.0024 (10) | 0.0010 (9) |
N3 | 0.0507 (14) | 0.0441 (12) | 0.0340 (12) | 0.0021 (10) | 0.0050 (10) | 0.0018 (10) |
C1 | 0.0535 (16) | 0.0445 (15) | 0.0346 (14) | −0.0002 (12) | 0.0033 (12) | −0.0062 (11) |
C2 | 0.0477 (15) | 0.0454 (15) | 0.0334 (14) | 0.0028 (12) | 0.0050 (12) | 0.0000 (12) |
C3 | 0.0496 (16) | 0.0445 (15) | 0.0329 (14) | 0.0021 (12) | 0.0036 (12) | 0.0033 (11) |
C4 | 0.0503 (16) | 0.0407 (14) | 0.0305 (13) | −0.0015 (12) | 0.0033 (12) | 0.0042 (11) |
C5 | 0.0512 (16) | 0.0418 (15) | 0.0339 (14) | 0.0035 (12) | 0.0053 (12) | 0.0050 (11) |
C6 | 0.0566 (18) | 0.0525 (17) | 0.0451 (16) | 0.0021 (14) | 0.0042 (14) | 0.0006 (13) |
C7 | 0.0556 (19) | 0.068 (2) | 0.062 (2) | 0.0059 (15) | −0.0002 (15) | 0.0038 (16) |
C8 | 0.063 (2) | 0.064 (2) | 0.066 (2) | 0.0167 (16) | 0.0109 (17) | 0.0087 (17) |
C9 | 0.075 (2) | 0.0488 (17) | 0.0493 (17) | 0.0156 (15) | 0.0106 (16) | 0.0018 (13) |
C10 | 0.0578 (17) | 0.0447 (16) | 0.0344 (14) | 0.0039 (13) | 0.0066 (13) | 0.0068 (12) |
C11 | 0.0543 (17) | 0.0443 (15) | 0.0320 (14) | 0.0011 (13) | 0.0039 (12) | −0.0035 (11) |
C12 | 0.0635 (19) | 0.0603 (19) | 0.0433 (16) | −0.0044 (15) | 0.0001 (14) | 0.0024 (14) |
C13 | 0.086 (2) | 0.0592 (19) | 0.0513 (18) | −0.0121 (16) | 0.0100 (17) | 0.0038 (15) |
C14 | 0.094 (2) | 0.0461 (17) | 0.0404 (17) | 0.0115 (17) | 0.0076 (17) | 0.0023 (13) |
C15 | 0.081 (2) | 0.067 (2) | 0.0462 (18) | 0.0185 (18) | −0.0051 (16) | 0.0047 (15) |
C16 | 0.0615 (19) | 0.0587 (18) | 0.0466 (17) | 0.0031 (14) | −0.0012 (14) | −0.0018 (14) |
C17 | 0.170 (4) | 0.064 (2) | 0.060 (2) | 0.014 (2) | 0.019 (2) | 0.0197 (17) |
C18 | 0.0500 (16) | 0.0529 (17) | 0.0327 (14) | 0.0012 (13) | 0.0044 (12) | 0.0007 (12) |
C19 | 0.0572 (18) | 0.0603 (19) | 0.0500 (17) | −0.0040 (15) | 0.0028 (14) | 0.0028 (14) |
C20 | 0.057 (2) | 0.081 (2) | 0.062 (2) | −0.0118 (17) | 0.0015 (16) | −0.0113 (17) |
C21 | 0.0548 (19) | 0.104 (3) | 0.061 (2) | 0.008 (2) | −0.0094 (16) | −0.0104 (19) |
C22 | 0.064 (2) | 0.075 (2) | 0.061 (2) | 0.0153 (17) | −0.0085 (16) | −0.0006 (17) |
C23 | 0.0582 (19) | 0.0602 (19) | 0.0491 (17) | 0.0064 (15) | −0.0012 (14) | −0.0014 (14) |
C24 | 0.0511 (16) | 0.0485 (16) | 0.0329 (14) | 0.0051 (13) | 0.0009 (12) | 0.0003 (12) |
C25 | 0.0598 (18) | 0.0563 (18) | 0.0571 (18) | −0.0021 (14) | 0.0085 (15) | −0.0087 (14) |
C26 | 0.078 (2) | 0.0559 (19) | 0.071 (2) | 0.0020 (16) | 0.0070 (19) | −0.0143 (16) |
C27 | 0.070 (2) | 0.072 (2) | 0.059 (2) | 0.0176 (18) | 0.0056 (17) | −0.0183 (16) |
C28 | 0.0555 (18) | 0.082 (2) | 0.0580 (19) | 0.0029 (17) | 0.0165 (15) | −0.0093 (17) |
C29 | 0.0583 (19) | 0.0591 (18) | 0.0484 (17) | −0.0034 (14) | 0.0104 (15) | −0.0071 (14) |
N1—C10 | 1.384 (3) | C14—C15 | 1.374 (4) |
N1—C1 | 1.445 (3) | C14—C17 | 1.506 (4) |
N1—H1A | 0.8600 | C15—C16 | 1.375 (4) |
N2—C4 | 1.362 (3) | C15—H15 | 0.9300 |
N2—C2 | 1.382 (3) | C16—H16 | 0.9300 |
N2—C1 | 1.475 (3) | C17—H17A | 0.9600 |
N3—C4 | 1.326 (3) | C17—H17B | 0.9600 |
N3—C3 | 1.384 (3) | C17—H17C | 0.9600 |
C1—C11 | 1.519 (3) | C18—C23 | 1.387 (3) |
C1—H1 | 0.9800 | C18—C19 | 1.385 (4) |
C2—C3 | 1.368 (3) | C19—C20 | 1.377 (4) |
C2—C18 | 1.468 (3) | C19—H19 | 0.9300 |
C3—C24 | 1.478 (3) | C20—C21 | 1.365 (4) |
C4—C5 | 1.440 (3) | C20—H20 | 0.9300 |
C5—C6 | 1.383 (3) | C21—C22 | 1.368 (4) |
C5—C10 | 1.396 (3) | C21—H21 | 0.9300 |
C6—C7 | 1.378 (4) | C22—C23 | 1.375 (4) |
C6—H6 | 0.9300 | C22—H22 | 0.9300 |
C7—C8 | 1.382 (4) | C23—H23 | 0.9300 |
C7—H7 | 0.9300 | C24—C29 | 1.376 (3) |
C8—C9 | 1.369 (4) | C24—C25 | 1.381 (4) |
C8—H8 | 0.9300 | C25—C26 | 1.384 (4) |
C9—C10 | 1.394 (4) | C25—H25 | 0.9300 |
C9—H9 | 0.9300 | C26—C27 | 1.366 (4) |
C11—C12 | 1.374 (4) | C26—H26 | 0.9300 |
C11—C16 | 1.379 (3) | C27—C28 | 1.368 (4) |
C12—C13 | 1.379 (4) | C27—H27 | 0.9300 |
C12—H12 | 0.9300 | C28—C29 | 1.380 (4) |
C13—C14 | 1.374 (4) | C28—H28 | 0.9300 |
C13—H13 | 0.9300 | C29—H29 | 0.9300 |
C10—N1—C1 | 123.4 (2) | C15—C14—C17 | 121.5 (3) |
C10—N1—H1A | 118.3 | C13—C14—C17 | 120.8 (3) |
C1—N1—H1A | 118.3 | C14—C15—C16 | 121.6 (3) |
C4—N2—C2 | 108.0 (2) | C14—C15—H15 | 119.2 |
C4—N2—C1 | 123.0 (2) | C16—C15—H15 | 119.2 |
C2—N2—C1 | 126.5 (2) | C15—C16—C11 | 120.3 (3) |
C4—N3—C3 | 104.9 (2) | C15—C16—H16 | 119.8 |
N1—C1—N2 | 107.7 (2) | C11—C16—H16 | 119.8 |
N1—C1—C11 | 114.4 (2) | C14—C17—H17A | 109.5 |
N2—C1—C11 | 110.40 (19) | C14—C17—H17B | 109.5 |
N1—C1—H1 | 108.1 | H17A—C17—H17B | 109.5 |
N2—C1—H1 | 108.1 | C14—C17—H17C | 109.5 |
C11—C1—H1 | 108.1 | H17A—C17—H17C | 109.5 |
C3—C2—N2 | 104.7 (2) | H17B—C17—H17C | 109.5 |
C3—C2—C18 | 132.0 (2) | C23—C18—C19 | 118.2 (3) |
N2—C2—C18 | 123.2 (2) | C23—C18—C2 | 120.0 (2) |
C2—C3—N3 | 111.1 (2) | C19—C18—C2 | 121.7 (2) |
C2—C3—C24 | 127.7 (2) | C20—C19—C18 | 120.9 (3) |
N3—C3—C24 | 121.2 (2) | C20—C19—H19 | 119.5 |
N3—C4—N2 | 111.3 (2) | C18—C19—H19 | 119.5 |
N3—C4—C5 | 129.0 (2) | C21—C20—C19 | 120.0 (3) |
N2—C4—C5 | 119.7 (2) | C21—C20—H20 | 120.0 |
C6—C5—C10 | 120.0 (2) | C19—C20—H20 | 120.0 |
C6—C5—C4 | 122.5 (2) | C22—C21—C20 | 119.9 (3) |
C10—C5—C4 | 117.4 (2) | C22—C21—H21 | 120.1 |
C7—C6—C5 | 120.4 (3) | C20—C21—H21 | 120.1 |
C7—C6—H6 | 119.8 | C21—C22—C23 | 120.7 (3) |
C5—C6—H6 | 119.8 | C21—C22—H22 | 119.7 |
C6—C7—C8 | 119.5 (3) | C23—C22—H22 | 119.7 |
C6—C7—H7 | 120.2 | C22—C23—C18 | 120.2 (3) |
C8—C7—H7 | 120.2 | C22—C23—H23 | 119.9 |
C9—C8—C7 | 120.9 (3) | C18—C23—H23 | 119.9 |
C9—C8—H8 | 119.5 | C29—C24—C25 | 118.6 (2) |
C7—C8—H8 | 119.5 | C29—C24—C3 | 121.1 (2) |
C8—C9—C10 | 120.0 (3) | C25—C24—C3 | 120.3 (2) |
C8—C9—H9 | 120.0 | C24—C25—C26 | 120.6 (3) |
C10—C9—H9 | 120.0 | C24—C25—H25 | 119.7 |
N1—C10—C5 | 120.2 (2) | C26—C25—H25 | 119.7 |
N1—C10—C9 | 120.6 (2) | C27—C26—C25 | 119.9 (3) |
C5—C10—C9 | 119.1 (3) | C27—C26—H26 | 120.0 |
C12—C11—C16 | 118.5 (2) | C25—C26—H26 | 120.0 |
C12—C11—C1 | 121.1 (2) | C26—C27—C28 | 120.1 (3) |
C16—C11—C1 | 120.4 (2) | C26—C27—H27 | 119.9 |
C11—C12—C13 | 120.6 (3) | C28—C27—H27 | 119.9 |
C11—C12—H12 | 119.7 | C27—C28—C29 | 120.0 (3) |
C13—C12—H12 | 119.7 | C27—C28—H28 | 120.0 |
C14—C13—C12 | 121.2 (3) | C29—C28—H28 | 120.0 |
C14—C13—H13 | 119.4 | C24—C29—C28 | 120.8 (3) |
C12—C13—H13 | 119.4 | C24—C29—H29 | 119.6 |
C15—C14—C13 | 117.7 (3) | C28—C29—H29 | 119.6 |
C10—N1—C1—N2 | 31.9 (3) | N1—C1—C11—C12 | 47.4 (3) |
C10—N1—C1—C11 | −91.3 (3) | N2—C1—C11—C12 | −74.2 (3) |
C4—N2—C1—N1 | −32.5 (3) | N1—C1—C11—C16 | −131.4 (3) |
C2—N2—C1—N1 | 167.7 (2) | N2—C1—C11—C16 | 106.9 (3) |
C4—N2—C1—C11 | 93.1 (3) | C16—C11—C12—C13 | −0.1 (4) |
C2—N2—C1—C11 | −66.8 (3) | C1—C11—C12—C13 | −179.0 (2) |
C4—N2—C2—C3 | 0.7 (3) | C11—C12—C13—C14 | −0.5 (4) |
C1—N2—C2—C3 | 163.1 (2) | C12—C13—C14—C15 | 0.7 (4) |
C4—N2—C2—C18 | −179.2 (2) | C12—C13—C14—C17 | 179.1 (3) |
C1—N2—C2—C18 | −16.9 (4) | C13—C14—C15—C16 | −0.4 (4) |
N2—C2—C3—N3 | −0.3 (3) | C17—C14—C15—C16 | −178.8 (3) |
C18—C2—C3—N3 | 179.7 (2) | C14—C15—C16—C11 | −0.2 (4) |
N2—C2—C3—C24 | 179.8 (2) | C12—C11—C16—C15 | 0.4 (4) |
C18—C2—C3—C24 | −0.3 (5) | C1—C11—C16—C15 | 179.3 (2) |
C4—N3—C3—C2 | −0.3 (3) | C3—C2—C18—C23 | −52.0 (4) |
C4—N3—C3—C24 | 179.7 (2) | N2—C2—C18—C23 | 127.9 (3) |
C3—N3—C4—N2 | 0.8 (3) | C3—C2—C18—C19 | 128.5 (3) |
C3—N3—C4—C5 | 177.5 (2) | N2—C2—C18—C19 | −51.6 (4) |
C2—N2—C4—N3 | −1.0 (3) | C23—C18—C19—C20 | −2.3 (4) |
C1—N2—C4—N3 | −164.1 (2) | C2—C18—C19—C20 | 177.2 (2) |
C2—N2—C4—C5 | −178.0 (2) | C18—C19—C20—C21 | 1.5 (4) |
C1—N2—C4—C5 | 18.9 (3) | C19—C20—C21—C22 | 0.2 (5) |
N3—C4—C5—C6 | −0.9 (4) | C20—C21—C22—C23 | −1.2 (5) |
N2—C4—C5—C6 | 175.5 (2) | C21—C22—C23—C18 | 0.4 (5) |
N3—C4—C5—C10 | −177.0 (2) | C19—C18—C23—C22 | 1.3 (4) |
N2—C4—C5—C10 | −0.5 (3) | C2—C18—C23—C22 | −178.2 (3) |
C10—C5—C6—C7 | 0.0 (4) | C2—C3—C24—C29 | −53.1 (4) |
C4—C5—C6—C7 | −176.0 (2) | N3—C3—C24—C29 | 127.0 (3) |
C5—C6—C7—C8 | −0.1 (4) | C2—C3—C24—C25 | 126.2 (3) |
C6—C7—C8—C9 | −0.1 (4) | N3—C3—C24—C25 | −53.7 (3) |
C7—C8—C9—C10 | 0.4 (4) | C29—C24—C25—C26 | 1.7 (4) |
C1—N1—C10—C5 | −17.9 (4) | C3—C24—C25—C26 | −177.7 (3) |
C1—N1—C10—C9 | 165.5 (2) | C24—C25—C26—C27 | −1.9 (4) |
C6—C5—C10—N1 | −176.3 (2) | C25—C26—C27—C28 | 0.7 (5) |
C4—C5—C10—N1 | −0.2 (3) | C26—C27—C28—C29 | 0.7 (5) |
C6—C5—C10—C9 | 0.4 (4) | C25—C24—C29—C28 | −0.2 (4) |
C4—C5—C10—C9 | 176.5 (2) | C3—C24—C29—C28 | 179.1 (2) |
C8—C9—C10—N1 | 176.1 (2) | C27—C28—C29—C24 | −0.9 (4) |
C8—C9—C10—C5 | −0.5 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···N3i | 0.86 | 2.46 | 3.058 (3) | 127 |
Symmetry code: (i) x, −y+3/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C29H23N3 |
Mr | 413.50 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 16.006 (4), 11.382 (3), 11.906 (3) |
β (°) | 91.810 (4) |
V (Å3) | 2167.8 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.44 × 0.42 × 0.33 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.968, 0.976 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11276, 3819, 2071 |
Rint | 0.038 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.047, 0.146, 0.95 |
No. of reflections | 3819 |
No. of parameters | 289 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.21, −0.25 |
Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···N3i | 0.86 | 2.46 | 3.058 (3) | 126.9 |
Symmetry code: (i) x, −y+3/2, z+1/2. |
Acknowledgements
The authors acknowledge finanical support from the Jiangsu Institute of Nuclear Medicine.
References
Billimora, A. D. & Cava, M. P. (1994). J. Org. Chem. 59, 6777–6782. Google Scholar
Blackman, A., Hambley, T. W., Picker, R., Taylor, W. C. & Thirasana, N. (1987). Tetrahedron Lett. 28, 5561–5564. CrossRef CAS Web of Science Google Scholar
Brana, M. F., Castellano, J. M., Keilhauer, G., Machuca, A., Martin, Y., Redondo, C., Schlick, E. & Walker, N. (1994). Anti-Cancer Drugs Des. 9, 527–538. CAS Google Scholar
Bruker (1998). SMART. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Bruker (1999). SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Helissey, P., Cros, S. & Giorgi-Renault, S. (1994). Anti-Cancer Drugs Des. 9, 51–57. CAS Google Scholar
Ibrahim, E. S., Montgomerie, A. M., Sneddon, A. H., Proctor, G. R. & Green, B. (1988). Eur. J. Med. Chem. 23, 183–188. CrossRef CAS Web of Science Google Scholar
Lorente, A., Galan, C., Fonseca, I. & Sanz-Aparicio, J. (1995). Can. J. Chem. 73, 1546–1555. CrossRef CAS Web of Science Google Scholar
McMurry, J. E. (1983). Acc. Chem. Res. 16, 405–411. CrossRef CAS Web of Science Google Scholar
Riou, J. F., Helissey, P., Grondard, L. & Giorgi-Renault, S. (1991). Mol. Pharmacol. 40, 699–706. PubMed CAS Web of Science Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Shi, D. Q., Chen, J. X., Chai, W. Y., Chen, W. X. & Kao, T. Y. (1993). Tetrahedron Lett. 34, 2963–2964. CrossRef CAS Web of Science Google Scholar
Shi, D. Q., Rong, L. C., Wang, J. X., Zhung, Q. Y., Wang, X. S. & Hu, H. W. (2003). Tetrahedron Lett. 44, 3199–3201. Web of Science CSD CrossRef CAS 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.
Quinazolines are an important class of compounds found in many natural products (e.g. hinckdentin A, Blackman et al., 1987; Billimora & Cava, 1994), and employed as potent agents (Helissey et al., 1994; Brana et al., 1994; Riou et al., 1991; Ibrahim et al., 1988). Low-valent titanium reagents have an exceedingly high ability to promote reductive coupling of carbonyl compounds and are attracting increasing interest in organic synthesis (McMurry, 1983; Shi et al., 1993; 2003).
We report here the crystal structure of the title compound, (I), which was synthesized by the reaction of 4,5-diphenyl-2-(2-nitrophenyl)imidazole with 4-methylbenzaldehyde oxime, induced by low-valent titanium reagent (TiCl4/Sm) using THF as solvent at refluxing temperature.
In (I), atoms N1, C1, N2, C4, C5 and C10 form a fused pyrimidine ring, with interatomic distances of 1.445 (3)Å for N1—C1 and 1.475 (3)Å for N2—C1, which indicate that these C—N bonds are single. The pyrimidine ring adopts an envelope conformation; atoms N1, N2, C4, C5 and C10 are coplanar, while atom C1 deviates from this plane by -0.383 (3) Å. The dihedral angle between the C18—C23 and C24—C29 phenyl rings is 62.09 (7)°. In addition, because of the existence of a conjugated system, the N1—C10 [1.384 (3) Å], N2—C2 [1.382 (3) Å] and N2—C4 [1.362 (3) Å] distances are significantly shorter than the typical Csp2—N bond distnec (1.426 Å; Lorente et al., 1995). The molecules are linked by N—H···N hydrogen bonds to form extended chains in the c direction (Table 1, Fig. 2).