organic compounds
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4-[(Z)-(2-Furyl)(2-naphthylamino)methylene)]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one
aCollege of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, People's Republic of China
*Correspondence e-mail: lijinzhou20@163.com
The title compound, C25H19N3O2, crystallizes as discrete molecules which are well ordered through one intramolecular N—H⋯O hydrogen bond. Structural analysis indicates that the molecules exist as the amine–one form.
Related literature
For 4-heterocyclic acylpyrazolones, see: Dong et al. (1983). For 4-heterocyclic acylpyrazolones derivatives as NMR shift-reagents, see: Mehrotra et al. (1978). For their pharmacological and physiological activity, see: Li et al. (2000). For related structures, see: Uzoukwu et al.(1993); Holzer et al. (1999); Peng et al. (2004); Chai et al. (2005); Lü et al. (2006); Arıcı et al. (1999). For the synthesis, see: Jensen (1959).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2005); cell SAINT (Bruker, 2005); 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: SHELXL97.
Supporting information
10.1107/S1600536809025586/hg2530sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809025586/hg2530Isup2.hkl
All reagents were obtained from commercial sources and used without further purification. HPMαFP was synthesized according to the method proposed by Jensen (1959). A mixture of a 10 ml HPMαFP (1 mmol, 0.2683 g) anhydrous ethanol solution and 10 mlα-naphthylamine (1 mmol, 0.1432 g) ethanol solution was refluxed for 4–5 h at 75–80°C, a deep-yellow product which was precipitated, filtered off and washed with anhydrous ethanol for several times, dried in air. The deep-yellow powder was recrystallized from ethanol and the single crystals were obtained at room temperature after 3 days.
The H atom bonded to N3 was located in a difference map and refined freely. Other H atoms were placed in calculated positions, with C—H = 0.93 for phenyl, furyl and naphthyl0.96 for methyl H atoms,and refined as riding, with Uiso(H) = 1.2Ueq (C) for phenyl and naphthyl H, and 1.5eqU(C) for methyl H.
Data collection: SMART (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXL97 (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure of (I) (thermal ellipsoids are shown at 30% probability levels). |
C25H19N3O2 | F(000) = 824.0 |
Mr = 393.43 | Dx = 1.317 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3130 reflections |
a = 9.8484 (10) Å | θ = 2.6–28.0° |
b = 17.5071 (18) Å | µ = 0.09 mm−1 |
c = 12.1549 (13) Å | T = 295 K |
β = 108.836 (2)° | Block, yellow |
V = 1983.5 (4) Å3 | 0.44 × 0.30 × 0.20 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 4755 independent reflections |
Radiation source: fine-focus sealed tube | 3166 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
ϕ and ω scans | θmax = 28.0°, θmin = 2.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2005) | h = −12→12 |
Tmin = 0.959, Tmax = 0.983 | k = −23→21 |
13952 measured reflections | l = −16→15 |
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)] = 0.045 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.120 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.05P)2 + 0.2364P] where P = (Fo2 + 2Fc2)/3 |
4755 reflections | (Δ/σ)max = 0.001 |
276 parameters | Δρmax = 0.16 e Å−3 |
0 restraints | Δρmin = −0.18 e Å−3 |
C25H19N3O2 | V = 1983.5 (4) Å3 |
Mr = 393.43 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 9.8484 (10) Å | µ = 0.09 mm−1 |
b = 17.5071 (18) Å | T = 295 K |
c = 12.1549 (13) Å | 0.44 × 0.30 × 0.20 mm |
β = 108.836 (2)° |
Bruker SMART CCD area-detector diffractometer | 4755 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2005) | 3166 reflections with I > 2σ(I) |
Tmin = 0.959, Tmax = 0.983 | Rint = 0.026 |
13952 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 0 restraints |
wR(F2) = 0.120 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.16 e Å−3 |
4755 reflections | Δρmin = −0.18 e Å−3 |
276 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 | ||
O1 | 0.31096 (12) | 0.99855 (6) | 0.59990 (9) | 0.0549 (3) | |
N2 | 0.45802 (13) | 0.85606 (7) | 0.46997 (10) | 0.0432 (3) | |
N1 | 0.34379 (12) | 0.90162 (7) | 0.47756 (10) | 0.0399 (3) | |
N3 | 0.55828 (15) | 1.02258 (7) | 0.77544 (11) | 0.0465 (3) | |
O2 | 0.75042 (12) | 0.85524 (6) | 0.83717 (10) | 0.0592 (3) | |
C1 | 0.20702 (15) | 0.89273 (8) | 0.39232 (12) | 0.0390 (3) | |
C11 | 0.61359 (16) | 0.96190 (8) | 0.73800 (12) | 0.0397 (3) | |
C7 | 0.38634 (16) | 0.94942 (8) | 0.57273 (12) | 0.0406 (3) | |
C16 | 0.59012 (16) | 1.05724 (9) | 0.88701 (13) | 0.0449 (4) | |
C9 | 0.56923 (16) | 0.87256 (8) | 0.56016 (12) | 0.0409 (3) | |
C8 | 0.53422 (15) | 0.92941 (8) | 0.63218 (12) | 0.0394 (3) | |
C12 | 0.75221 (16) | 0.93050 (8) | 0.80752 (12) | 0.0418 (3) | |
C6 | 0.19138 (17) | 0.84437 (9) | 0.29868 (13) | 0.0457 (4) | |
H6 | 0.2712 | 0.8203 | 0.2895 | 0.055* | |
C25 | 0.53169 (17) | 1.13195 (9) | 0.88745 (13) | 0.0469 (4) | |
C17 | 0.65935 (18) | 1.02042 (10) | 0.98919 (14) | 0.0535 (4) | |
H17 | 0.6968 | 0.9718 | 0.9881 | 0.064* | |
C2 | 0.08712 (17) | 0.92954 (9) | 0.40357 (14) | 0.0490 (4) | |
H2 | 0.0965 | 0.9628 | 0.4653 | 0.059* | |
C4 | −0.06237 (18) | 0.86776 (10) | 0.23023 (15) | 0.0564 (4) | |
H4 | −0.1525 | 0.8592 | 0.1763 | 0.068* | |
C10 | 0.71017 (17) | 0.83648 (10) | 0.57112 (15) | 0.0563 (4) | |
H10A | 0.7012 | 0.8060 | 0.5035 | 0.085* | |
H10B | 0.7393 | 0.8047 | 0.6391 | 0.085* | |
H10C | 0.7808 | 0.8756 | 0.5778 | 0.085* | |
C18 | 0.67368 (19) | 1.05648 (12) | 1.09619 (14) | 0.0628 (5) | |
H18 | 0.7246 | 1.0322 | 1.1653 | 0.075* | |
C24 | 0.46253 (18) | 1.17379 (10) | 0.78515 (15) | 0.0546 (4) | |
H24 | 0.4562 | 1.1530 | 0.7133 | 0.065* | |
C5 | 0.05709 (18) | 0.83200 (10) | 0.21910 (14) | 0.0534 (4) | |
H5 | 0.0471 | 0.7990 | 0.1570 | 0.064* | |
C3 | −0.04613 (18) | 0.91643 (10) | 0.32260 (15) | 0.0564 (4) | |
H3 | −0.1262 | 0.9409 | 0.3306 | 0.068* | |
C19 | 0.6143 (2) | 1.12593 (12) | 1.09975 (15) | 0.0645 (5) | |
H19 | 0.6215 | 1.1477 | 1.1712 | 0.077* | |
C13 | 0.88543 (18) | 0.95840 (10) | 0.85144 (14) | 0.0545 (4) | |
H13 | 0.9150 | 1.0081 | 0.8444 | 0.065* | |
C21 | 0.4782 (2) | 1.23835 (12) | 0.99697 (19) | 0.0748 (6) | |
H21 | 0.4819 | 1.2605 | 1.0675 | 0.090* | |
C20 | 0.54195 (19) | 1.16567 (10) | 0.99658 (15) | 0.0561 (4) | |
C15 | 0.8882 (2) | 0.83722 (11) | 0.90023 (15) | 0.0651 (5) | |
H15 | 0.9184 | 0.7893 | 0.9315 | 0.078* | |
C14 | 0.97269 (19) | 0.89690 (11) | 0.91091 (16) | 0.0624 (5) | |
H14 | 1.0709 | 0.8985 | 0.9500 | 0.075* | |
C23 | 0.4050 (2) | 1.24393 (11) | 0.78978 (18) | 0.0689 (5) | |
H23 | 0.3609 | 1.2706 | 0.7214 | 0.083* | |
C22 | 0.4119 (3) | 1.27615 (12) | 0.8966 (2) | 0.0804 (6) | |
H22 | 0.3708 | 1.3237 | 0.8988 | 0.096* | |
H3A | 0.4738 (19) | 1.0356 (10) | 0.7248 (15) | 0.058 (5)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0514 (7) | 0.0583 (7) | 0.0513 (7) | 0.0136 (5) | 0.0115 (5) | −0.0159 (5) |
N2 | 0.0433 (7) | 0.0436 (7) | 0.0423 (7) | 0.0067 (5) | 0.0134 (6) | −0.0054 (5) |
N1 | 0.0391 (7) | 0.0411 (7) | 0.0383 (6) | 0.0041 (5) | 0.0110 (5) | −0.0056 (5) |
N3 | 0.0498 (8) | 0.0483 (8) | 0.0369 (7) | 0.0048 (6) | 0.0076 (6) | −0.0075 (6) |
O2 | 0.0605 (7) | 0.0436 (6) | 0.0581 (7) | −0.0067 (5) | −0.0022 (6) | 0.0069 (5) |
C1 | 0.0409 (8) | 0.0386 (8) | 0.0364 (7) | 0.0015 (6) | 0.0110 (6) | 0.0031 (6) |
C11 | 0.0443 (8) | 0.0376 (8) | 0.0382 (8) | −0.0023 (6) | 0.0146 (6) | 0.0001 (6) |
C7 | 0.0455 (9) | 0.0397 (8) | 0.0366 (7) | 0.0017 (6) | 0.0133 (6) | −0.0019 (6) |
C16 | 0.0444 (8) | 0.0530 (9) | 0.0387 (8) | −0.0093 (7) | 0.0152 (6) | −0.0092 (7) |
C9 | 0.0433 (8) | 0.0401 (8) | 0.0386 (8) | 0.0031 (6) | 0.0121 (6) | −0.0018 (6) |
C8 | 0.0418 (8) | 0.0387 (8) | 0.0374 (7) | 0.0027 (6) | 0.0121 (6) | −0.0009 (6) |
C12 | 0.0489 (9) | 0.0360 (8) | 0.0382 (8) | −0.0027 (6) | 0.0109 (6) | 0.0002 (6) |
C6 | 0.0474 (9) | 0.0473 (9) | 0.0405 (8) | 0.0051 (7) | 0.0117 (7) | −0.0017 (7) |
C25 | 0.0466 (9) | 0.0519 (9) | 0.0459 (9) | −0.0101 (7) | 0.0203 (7) | −0.0131 (7) |
C17 | 0.0506 (10) | 0.0646 (11) | 0.0444 (9) | −0.0058 (8) | 0.0143 (7) | −0.0030 (8) |
C2 | 0.0461 (9) | 0.0552 (9) | 0.0449 (9) | 0.0058 (7) | 0.0135 (7) | −0.0019 (7) |
C4 | 0.0436 (9) | 0.0660 (11) | 0.0511 (10) | −0.0024 (8) | 0.0034 (7) | 0.0071 (8) |
C10 | 0.0495 (10) | 0.0643 (11) | 0.0533 (10) | 0.0137 (8) | 0.0139 (8) | −0.0075 (8) |
C18 | 0.0556 (11) | 0.0919 (15) | 0.0382 (9) | −0.0157 (10) | 0.0110 (8) | −0.0029 (9) |
C24 | 0.0626 (11) | 0.0551 (10) | 0.0510 (10) | 0.0013 (8) | 0.0254 (8) | −0.0096 (8) |
C5 | 0.0580 (10) | 0.0540 (10) | 0.0406 (8) | −0.0018 (8) | 0.0055 (7) | −0.0039 (7) |
C3 | 0.0446 (10) | 0.0681 (11) | 0.0546 (10) | 0.0086 (8) | 0.0131 (8) | 0.0036 (9) |
C19 | 0.0683 (12) | 0.0818 (13) | 0.0472 (10) | −0.0234 (10) | 0.0239 (9) | −0.0240 (9) |
C13 | 0.0486 (10) | 0.0526 (10) | 0.0580 (10) | −0.0104 (8) | 0.0114 (8) | 0.0019 (8) |
C21 | 0.0903 (15) | 0.0718 (13) | 0.0745 (14) | −0.0120 (11) | 0.0437 (12) | −0.0355 (11) |
C20 | 0.0601 (11) | 0.0620 (11) | 0.0517 (10) | −0.0186 (8) | 0.0260 (8) | −0.0205 (8) |
C15 | 0.0667 (12) | 0.0540 (10) | 0.0559 (10) | 0.0097 (9) | −0.0062 (9) | 0.0075 (8) |
C14 | 0.0471 (10) | 0.0720 (12) | 0.0595 (11) | 0.0019 (9) | 0.0053 (8) | 0.0021 (9) |
C23 | 0.0805 (14) | 0.0602 (11) | 0.0721 (12) | 0.0112 (10) | 0.0333 (11) | −0.0028 (10) |
C22 | 0.1020 (17) | 0.0592 (12) | 0.0900 (16) | 0.0080 (11) | 0.0449 (13) | −0.0201 (11) |
O1—C7 | 1.2483 (17) | C2—H2 | 0.9300 |
N2—C9 | 1.3074 (18) | C4—C3 | 1.377 (2) |
N2—N1 | 1.4062 (16) | C4—C5 | 1.377 (2) |
N1—C7 | 1.3787 (18) | C4—H4 | 0.9300 |
N1—C1 | 1.4181 (18) | C10—H10A | 0.9600 |
N3—C11 | 1.3388 (19) | C10—H10B | 0.9600 |
N3—C16 | 1.4251 (18) | C10—H10C | 0.9600 |
N3—H3A | 0.890 (17) | C18—C19 | 1.356 (3) |
O2—C15 | 1.363 (2) | C18—H18 | 0.9300 |
O2—C12 | 1.3677 (17) | C24—C23 | 1.361 (2) |
C1—C6 | 1.387 (2) | C24—H24 | 0.9300 |
C1—C2 | 1.390 (2) | C5—H5 | 0.9300 |
C11—C8 | 1.3928 (19) | C3—H3 | 0.9300 |
C11—C12 | 1.461 (2) | C19—C20 | 1.410 (3) |
C7—C8 | 1.444 (2) | C19—H19 | 0.9300 |
C16—C17 | 1.370 (2) | C13—C14 | 1.421 (2) |
C16—C25 | 1.430 (2) | C13—H13 | 0.9300 |
C9—C8 | 1.439 (2) | C21—C22 | 1.356 (3) |
C9—C10 | 1.491 (2) | C21—C20 | 1.420 (3) |
C12—C13 | 1.339 (2) | C21—H21 | 0.9300 |
C6—C5 | 1.380 (2) | C15—C14 | 1.316 (3) |
C6—H6 | 0.9300 | C15—H15 | 0.9300 |
C25—C24 | 1.414 (2) | C14—H14 | 0.9300 |
C25—C20 | 1.425 (2) | C23—C22 | 1.397 (3) |
C17—C18 | 1.411 (2) | C23—H23 | 0.9300 |
C17—H17 | 0.9300 | C22—H22 | 0.9300 |
C2—C3 | 1.382 (2) | ||
C9—N2—N1 | 106.92 (11) | C5—C4—H4 | 120.6 |
C7—N1—N2 | 111.50 (11) | C9—C10—H10A | 109.5 |
C7—N1—C1 | 129.74 (12) | C9—C10—H10B | 109.5 |
N2—N1—C1 | 118.76 (11) | H10A—C10—H10B | 109.5 |
C11—N3—C16 | 132.27 (14) | C9—C10—H10C | 109.5 |
C11—N3—H3A | 111.1 (11) | H10A—C10—H10C | 109.5 |
C16—N3—H3A | 114.8 (11) | H10B—C10—H10C | 109.5 |
C15—O2—C12 | 106.02 (13) | C19—C18—C17 | 120.98 (17) |
C6—C1—C2 | 119.41 (14) | C19—C18—H18 | 119.5 |
C6—C1—N1 | 119.62 (13) | C17—C18—H18 | 119.5 |
C2—C1—N1 | 120.92 (13) | C23—C24—C25 | 121.31 (16) |
N3—C11—C8 | 117.99 (13) | C23—C24—H24 | 119.3 |
N3—C11—C12 | 120.57 (13) | C25—C24—H24 | 119.3 |
C8—C11—C12 | 121.43 (13) | C4—C5—C6 | 121.02 (16) |
O1—C7—N1 | 126.48 (13) | C4—C5—H5 | 119.5 |
O1—C7—C8 | 128.64 (13) | C6—C5—H5 | 119.5 |
N1—C7—C8 | 104.88 (12) | C4—C3—C2 | 121.14 (16) |
C17—C16—N3 | 123.69 (15) | C4—C3—H3 | 119.4 |
C17—C16—C25 | 120.68 (14) | C2—C3—H3 | 119.4 |
N3—C16—C25 | 115.34 (13) | C18—C19—C20 | 120.90 (16) |
N2—C9—C8 | 111.25 (13) | C18—C19—H19 | 119.6 |
N2—C9—C10 | 119.01 (13) | C20—C19—H19 | 119.6 |
C8—C9—C10 | 129.61 (13) | C12—C13—C14 | 106.28 (15) |
C11—C8—C9 | 132.15 (13) | C12—C13—H13 | 126.9 |
C11—C8—C7 | 122.51 (13) | C14—C13—H13 | 126.9 |
C9—C8—C7 | 105.33 (12) | C22—C21—C20 | 121.29 (17) |
C13—C12—O2 | 109.92 (13) | C22—C21—H21 | 119.4 |
C13—C12—C11 | 134.89 (14) | C20—C21—H21 | 119.4 |
O2—C12—C11 | 115.19 (13) | C19—C20—C21 | 122.45 (16) |
C5—C6—C1 | 119.89 (15) | C19—C20—C25 | 119.14 (17) |
C5—C6—H6 | 120.1 | C21—C20—C25 | 118.41 (17) |
C1—C6—H6 | 120.1 | C14—C15—O2 | 110.79 (15) |
C24—C25—C20 | 118.23 (15) | C14—C15—H15 | 124.6 |
C24—C25—C16 | 123.42 (14) | O2—C15—H15 | 124.6 |
C20—C25—C16 | 118.34 (15) | C15—C14—C13 | 106.99 (16) |
C16—C17—C18 | 119.84 (17) | C15—C14—H14 | 126.5 |
C16—C17—H17 | 120.1 | C13—C14—H14 | 126.5 |
C18—C17—H17 | 120.1 | C24—C23—C22 | 120.46 (19) |
C3—C2—C1 | 119.63 (15) | C24—C23—H23 | 119.8 |
C3—C2—H2 | 120.2 | C22—C23—H23 | 119.8 |
C1—C2—H2 | 120.2 | C21—C22—C23 | 120.26 (19) |
C3—C4—C5 | 118.90 (15) | C21—C22—H22 | 119.9 |
C3—C4—H4 | 120.6 | C23—C22—H22 | 119.9 |
C9—N2—N1—C7 | 2.05 (16) | C2—C1—C6—C5 | −1.3 (2) |
C9—N2—N1—C1 | −177.32 (12) | N1—C1—C6—C5 | 176.20 (14) |
C7—N1—C1—C6 | 175.47 (14) | C17—C16—C25—C24 | 178.23 (15) |
N2—N1—C1—C6 | −5.3 (2) | N3—C16—C25—C24 | −7.8 (2) |
C7—N1—C1—C2 | −7.0 (2) | C17—C16—C25—C20 | −2.6 (2) |
N2—N1—C1—C2 | 172.21 (13) | N3—C16—C25—C20 | 171.36 (14) |
C16—N3—C11—C8 | 162.29 (15) | N3—C16—C17—C18 | −173.62 (14) |
C16—N3—C11—C12 | −16.9 (3) | C25—C16—C17—C18 | −0.1 (2) |
N2—N1—C7—O1 | 176.89 (14) | C6—C1—C2—C3 | 1.1 (2) |
C1—N1—C7—O1 | −3.8 (3) | N1—C1—C2—C3 | −176.36 (14) |
N2—N1—C7—C8 | −3.45 (15) | C16—C17—C18—C19 | 2.9 (3) |
C1—N1—C7—C8 | 175.84 (13) | C20—C25—C24—C23 | −1.0 (3) |
C11—N3—C16—C17 | −20.6 (3) | C16—C25—C24—C23 | 178.16 (17) |
C11—N3—C16—C25 | 165.61 (16) | C3—C4—C5—C6 | 0.0 (3) |
N1—N2—C9—C8 | 0.31 (17) | C1—C6—C5—C4 | 0.8 (2) |
N1—N2—C9—C10 | −175.88 (13) | C5—C4—C3—C2 | −0.2 (3) |
N3—C11—C8—C9 | 169.80 (15) | C1—C2—C3—C4 | −0.4 (3) |
C12—C11—C8—C9 | −11.0 (3) | C17—C18—C19—C20 | −2.8 (3) |
N3—C11—C8—C7 | −11.4 (2) | O2—C12—C13—C14 | 0.73 (19) |
C12—C11—C8—C7 | 167.75 (14) | C11—C12—C13—C14 | −179.64 (17) |
N2—C9—C8—C11 | 176.57 (15) | C18—C19—C20—C21 | 179.81 (18) |
C10—C9—C8—C11 | −7.8 (3) | C18—C19—C20—C25 | −0.1 (3) |
N2—C9—C8—C7 | −2.38 (17) | C22—C21—C20—C19 | 178.53 (19) |
C10—C9—C8—C7 | 173.29 (16) | C22—C21—C20—C25 | −1.6 (3) |
O1—C7—C8—C11 | 4.0 (2) | C24—C25—C20—C19 | −178.08 (15) |
N1—C7—C8—C11 | −175.66 (13) | C16—C25—C20—C19 | 2.7 (2) |
O1—C7—C8—C9 | −176.93 (16) | C24—C25—C20—C21 | 2.0 (2) |
N1—C7—C8—C9 | 3.42 (15) | C16—C25—C20—C21 | −177.14 (16) |
C15—O2—C12—C13 | −0.65 (19) | C12—O2—C15—C14 | 0.3 (2) |
C15—O2—C12—C11 | 179.64 (14) | O2—C15—C14—C13 | 0.1 (2) |
N3—C11—C12—C13 | −57.2 (3) | C12—C13—C14—C15 | −0.5 (2) |
C8—C11—C12—C13 | 123.6 (2) | C25—C24—C23—C22 | −0.6 (3) |
N3—C11—C12—O2 | 122.37 (15) | C20—C21—C22—C23 | 0.0 (3) |
C8—C11—C12—O2 | −56.76 (19) | C24—C23—C22—C21 | 1.1 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1 | 0.890 (17) | 1.930 (17) | 2.7030 (17) | 144.3 (16) |
Experimental details
Crystal data | |
Chemical formula | C25H19N3O2 |
Mr | 393.43 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 295 |
a, b, c (Å) | 9.8484 (10), 17.5071 (18), 12.1549 (13) |
β (°) | 108.836 (2) |
V (Å3) | 1983.5 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.44 × 0.30 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2005) |
Tmin, Tmax | 0.959, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13952, 4755, 3166 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.661 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.120, 1.05 |
No. of reflections | 4755 |
No. of parameters | 276 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.16, −0.18 |
Computer programs: SMART (Bruker, 2005), SAINT (Bruker, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1 | 0.890 (17) | 1.930 (17) | 2.7030 (17) | 144.3 (16) |
Acknowledgements
The authors gratefully acknowledge financial support from the Scientific Research Foundation of the Education Department of Heilongjiang Province (grant No. 11521061), the Special Foundation of Creative Talents in Science and Technology of Harbin City (No. 2006RFXXG019) and the Foundation for Scientific and Technical Development of Harbin Normal University (No. 08XYG-12).
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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.
1-phenyl-3-methyl-4-(2-furoyl)-5-pyrazolone (HPMαFP), is a member of a family of 4-heterocyclic acylpyrazolones, first synthesized in 1983 (Dong et al., 1983). Such 4-heterocyclic acylpyrazolones derivatives was found to be useful as NMR shift-reagents (Mehrotra et al., 1978), and it is also important in understanding the behaviour of these compounds with respect to the mechanisms of pharmacological activities and physiological activities (Li et al., 2000). As part of this work, we synthesized the title compound (I) derived from HPMαFP, and its structure is reported here.
The molecular structure of (I) is shown in Fig. 1. The C(7)–O(1) distance is 1.248 (3)Å which is shorter than that for C–OH in some pyrazolone compounds 1.319 (5)Å (Uzoukwu et al., 1993) and 1.313 (2)Å (Holzer et al., 1999), whereas it is close to the distances for C=O in similar compounds: 1.256 (3)Å (Uzoukwu et al.,1993) and 1.254 (2) Å (Peng et al., 2004). The C(8)–C(11)(1.392 (8)Å) is shorter than the C–C (1.53 Å), but close to C–C in some correlative compounds,1.400 (4) Å (Chai et al., 2005). The C(11)–N(3) distances is 1.338 (8) Å, which is longer than the values of 1.292 Å (Peng et al., 2004) and 1.318 (3) Å (Lü et al., 2006) for C=N inpyrazolone compounds, but similar to that for C–N (1.339 Å) (Arıcı et al., 1999). So we conclude that the title compound exist in the keto-form in solid state. The N–H proton is strongly hydrogen bonded with the O(1) atom, the N(3)···O(1) distances is 2.7030 (2)Å and the angle of N(3)–H(3)···O(1) is 144.3 (16)°. Therefore, the crystal structure study shows that the compound exists in the amine-one form.