organic compounds
3′,7′,7′-Trimethyl-1′-phenyl-5′,6′,7′,8′-tetrahydrospiro[indoline-3,4′-(1H,4H-pyrazolo[3,4-b]chromene)]-2,5′-dione
aDepartment of Chemistry, Jinan University, Guangzhou 510632, People's Republic of China
*Correspondence e-mail: tlyq@jnu.edu.cn
The title spirooxindole compound, C26H23N3O3, was prepared by the reaction of isatin, 3-methyl-1-phenyl-2-pyrazolin-5-one and 5,5-dimethylcyclohexane-1,3-dione in an ethanol solution. The fused cyclohexene ring adopts an The dihedral angle between the aromatic and pyrazoline rings is 23.70 (8)°. An intramolecular C—H⋯O interaction occurs. The is stabilized by N—H⋯N hydrogen-bonding interactions, leading to a zigzag chain along the b axis.
Related literature
For general background to et al. (2010); Shemchuk et al. (2008); Zhang & Panek (2009); Zhu et al. (2007).
and their biological activity, see: LiExperimental
Crystal data
|
Refinement
|
Data collection: SMART (Bruker, 1999); cell SAINT-Plus (Bruker, 1999); data reduction: SAINT-Plus; 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/S1600536810045253/vm2051sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810045253/vm2051Isup2.hkl
The title compound was prepared by the reaction of isatin (0.147 g, 1 mmol), 3-methyl-1-phenyl-2-pyrazolin-5-one (0.174 g, 1 mmol) with 5,5-dimethylcyclohexane-1,3-dione (0.140 g, 1 mmol) in the presence of p-TSA (p-toluenesulfonic acid) (0.1 g) in water (5.0 ml) under reflux for 24 h. After cooling, the reaction mixture was filtered to collect the solid. The crude product was recrystallized from anhydrous ethanol and then dried to give pure compound (I) in 71% yield (m.p. > 573 K). Single crystals suitable for X-ray diffraction were obtained by slow evaporation of an ethanol solution of (I) at room temperature.
The C-bound H atoms were positioned geometrically and were included in the
in the riding-model approximation, with distances 0.98 (CH3), 0.99 (CH2) and 0.95 Å (aromatic); Uiso(H) = 1.2Ueq(C) for H atoms on secondary and tertiary C atoms, and Uiso = 1.5Ueq(C) for methyl H atoms. The NH hydrogen atoms were located in a difference Fourier map and then refined as riding on the N atoms with Uiso(H) = 1.2Ueq(N).Spirocyclic systems are probably the most well known heterocycles (Shemchuk et al., 2008).
are characterized by their highly biological activities (Zhu et al., 2007; Li et al., 2010). The spirooxindoles which form the central skeleton of many pharmacologically active compounds and natural products have gained much prominence in recent days (Zhang et al., 2009). Herein, we report the of the title compound.The title compound is a formed from the reaciton of isatin, 3-methyl-1-phenyl-2-pyrazolin-5-one and 5,5-dimethylcyclohexane-1,3-dione. The molecular structure is shown in Fig. 1.
The ring C5—C10 adopts an
The dihedral angle between the aromatic ring C11—C16 and pyrazolin ring (C1—C2—C3—N1—N2) is 23.70 (8) °. The is stabilized by N—H···N hydrogen bonding interactions, leading to a zigzag chain along the b axis (Fig. 2 and Table 1).In addition, there is an intramolecular hydrogen bonding interaction between C12 and O2 (Table 1).
For general background to
and their biological activity, see: Li et al. (2010); Shemchuk et al. (2008); Zhang et al.(2009); Zhu et al. (2007).Data collection: SMART (Bruker, 1999); cell
SAINT-Plus (Bruker, 1999); data reduction: SAINT-Plus (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.C26H23N3O3 | F(000) = 896 |
Mr = 425.47 | Dx = 1.336 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 4524 reflections |
a = 11.8778 (19) Å | θ = 2.2–27.0° |
b = 12.891 (2) Å | µ = 0.09 mm−1 |
c = 14.039 (2) Å | T = 110 K |
β = 100.280 (3)° | Block, colorless |
V = 2115.1 (6) Å3 | 0.46 × 0.40 × 0.39 mm |
Z = 4 |
Bruker SMART CCD 1K area-detector diffractometer | 4085 independent reflections |
Radiation source: fine-focus sealed tube | 3097 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
φ and ω scans | θmax = 26.0°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −14→14 |
Tmin = 0.960, Tmax = 0.966 | k = −15→13 |
9755 measured reflections | l = −17→10 |
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)] = 0.039 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.102 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0527P)2 + 0.4259P] where P = (Fo2 + 2Fc2)/3 |
4085 reflections | (Δ/σ)max < 0.001 |
292 parameters | Δρmax = 0.26 e Å−3 |
0 restraints | Δρmin = −0.21 e Å−3 |
C26H23N3O3 | V = 2115.1 (6) Å3 |
Mr = 425.47 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 11.8778 (19) Å | µ = 0.09 mm−1 |
b = 12.891 (2) Å | T = 110 K |
c = 14.039 (2) Å | 0.46 × 0.40 × 0.39 mm |
β = 100.280 (3)° |
Bruker SMART CCD 1K area-detector diffractometer | 4085 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3097 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.966 | Rint = 0.026 |
9755 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.102 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.26 e Å−3 |
4085 reflections | Δρmin = −0.21 e Å−3 |
292 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 | ||
C1 | −0.13468 (13) | 0.10606 (12) | 0.24814 (11) | 0.0200 (3) | |
C2 | −0.04964 (12) | 0.17757 (12) | 0.23366 (10) | 0.0168 (3) | |
C3 | 0.02151 (12) | 0.12204 (11) | 0.18767 (10) | 0.0170 (3) | |
C4 | −0.02884 (13) | 0.28932 (11) | 0.26016 (10) | 0.0172 (3) | |
C5 | 0.07068 (13) | 0.32491 (12) | 0.21352 (10) | 0.0178 (3) | |
C6 | 0.13557 (13) | 0.26188 (11) | 0.16884 (10) | 0.0179 (3) | |
C7 | 0.09785 (13) | 0.43675 (12) | 0.21781 (10) | 0.0193 (3) | |
C8 | 0.20736 (13) | 0.47098 (12) | 0.18694 (11) | 0.0212 (3) | |
H8A | 0.2714 | 0.4627 | 0.2422 | 0.025* | |
H8B | 0.2014 | 0.5456 | 0.1700 | 0.025* | |
C9 | 0.23482 (13) | 0.41005 (12) | 0.10033 (11) | 0.0193 (3) | |
C10 | 0.23633 (13) | 0.29460 (12) | 0.12630 (11) | 0.0207 (3) | |
H10A | 0.2383 | 0.2533 | 0.0672 | 0.025* | |
H10B | 0.3071 | 0.2793 | 0.1731 | 0.025* | |
C11 | 0.03029 (13) | −0.06572 (11) | 0.13607 (11) | 0.0185 (3) | |
C12 | 0.10268 (13) | −0.05500 (12) | 0.06905 (11) | 0.0205 (3) | |
H12 | 0.1237 | 0.0120 | 0.0501 | 0.025* | |
C13 | 0.14373 (13) | −0.14305 (12) | 0.03029 (11) | 0.0233 (4) | |
H13 | 0.1927 | −0.1364 | −0.0160 | 0.028* | |
C14 | 0.11399 (14) | −0.24068 (13) | 0.05836 (12) | 0.0275 (4) | |
H14 | 0.1416 | −0.3008 | 0.0308 | 0.033* | |
C15 | 0.04423 (15) | −0.25055 (13) | 0.12654 (12) | 0.0267 (4) | |
H15 | 0.0254 | −0.3176 | 0.1469 | 0.032* | |
C16 | 0.00131 (14) | −0.16334 (12) | 0.16572 (11) | 0.0224 (4) | |
H16 | −0.0473 | −0.1704 | 0.2122 | 0.027* | |
C17 | −0.14039 (13) | 0.35270 (11) | 0.22569 (11) | 0.0192 (3) | |
C18 | −0.10051 (13) | 0.36495 (11) | 0.39106 (11) | 0.0204 (3) | |
C19 | −0.01059 (13) | 0.30626 (11) | 0.36897 (10) | 0.0180 (3) | |
C20 | −0.10638 (15) | 0.39146 (13) | 0.48573 (12) | 0.0259 (4) | |
H20 | −0.1673 | 0.4327 | 0.5005 | 0.031* | |
C21 | −0.01995 (15) | 0.35545 (13) | 0.55838 (12) | 0.0287 (4) | |
H21 | −0.0214 | 0.3731 | 0.6238 | 0.034* | |
C22 | 0.06789 (15) | 0.29442 (13) | 0.53702 (12) | 0.0282 (4) | |
H22 | 0.1250 | 0.2694 | 0.5879 | 0.034* | |
C23 | 0.07337 (13) | 0.26930 (12) | 0.44129 (11) | 0.0226 (4) | |
H23 | 0.1338 | 0.2276 | 0.4264 | 0.027* | |
C24 | −0.23692 (14) | 0.12431 (13) | 0.29448 (12) | 0.0267 (4) | |
H24A | −0.2972 | 0.1581 | 0.2480 | 0.040* | |
H24B | −0.2155 | 0.1690 | 0.3513 | 0.040* | |
H24C | −0.2651 | 0.0578 | 0.3145 | 0.040* | |
C25 | 0.14278 (14) | 0.43141 (13) | 0.01188 (11) | 0.0247 (4) | |
H25A | 0.1557 | 0.3871 | −0.0418 | 0.037* | |
H25B | 0.1463 | 0.5044 | −0.0069 | 0.037* | |
H25C | 0.0673 | 0.4165 | 0.0276 | 0.037* | |
C26 | 0.35231 (14) | 0.44152 (13) | 0.07888 (12) | 0.0252 (4) | |
H26A | 0.4105 | 0.4318 | 0.1371 | 0.038* | |
H26B | 0.3505 | 0.5146 | 0.0594 | 0.038* | |
H26C | 0.3710 | 0.3983 | 0.0264 | 0.038* | |
N1 | −0.01647 (11) | 0.02305 (10) | 0.17519 (9) | 0.0180 (3) | |
N2 | −0.11516 (11) | 0.01329 (10) | 0.21348 (9) | 0.0205 (3) | |
N3 | −0.17731 (11) | 0.38803 (10) | 0.30610 (9) | 0.0227 (3) | |
H3 | −0.2421 | 0.4216 | 0.3048 | 0.027* | |
O1 | 0.03312 (10) | 0.49811 (8) | 0.24678 (8) | 0.0264 (3) | |
O2 | 0.11714 (9) | 0.15614 (8) | 0.15647 (7) | 0.0199 (2) | |
O3 | −0.18860 (9) | 0.36251 (9) | 0.14228 (8) | 0.0260 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0206 (8) | 0.0224 (8) | 0.0170 (7) | −0.0002 (7) | 0.0031 (6) | −0.0006 (6) |
C2 | 0.0164 (8) | 0.0186 (8) | 0.0155 (7) | 0.0007 (6) | 0.0030 (6) | 0.0011 (6) |
C3 | 0.0156 (7) | 0.0172 (8) | 0.0181 (7) | 0.0002 (6) | 0.0030 (6) | 0.0016 (6) |
C4 | 0.0166 (8) | 0.0167 (8) | 0.0188 (8) | 0.0004 (6) | 0.0048 (6) | 0.0001 (6) |
C5 | 0.0171 (8) | 0.0196 (8) | 0.0166 (7) | 0.0000 (6) | 0.0025 (6) | 0.0013 (6) |
C6 | 0.0189 (8) | 0.0148 (8) | 0.0195 (8) | −0.0007 (6) | 0.0020 (6) | 0.0009 (6) |
C7 | 0.0233 (8) | 0.0206 (8) | 0.0136 (7) | 0.0000 (7) | 0.0020 (6) | −0.0005 (6) |
C8 | 0.0224 (8) | 0.0192 (8) | 0.0221 (8) | −0.0031 (6) | 0.0040 (7) | −0.0023 (6) |
C9 | 0.0195 (8) | 0.0183 (8) | 0.0213 (8) | −0.0028 (6) | 0.0067 (6) | −0.0003 (6) |
C10 | 0.0178 (8) | 0.0205 (8) | 0.0251 (8) | −0.0006 (6) | 0.0074 (7) | −0.0012 (6) |
C11 | 0.0170 (7) | 0.0175 (8) | 0.0190 (8) | 0.0021 (6) | −0.0018 (6) | −0.0031 (6) |
C12 | 0.0200 (8) | 0.0215 (8) | 0.0189 (8) | 0.0002 (6) | 0.0002 (6) | 0.0006 (6) |
C13 | 0.0190 (8) | 0.0273 (9) | 0.0229 (8) | 0.0028 (7) | 0.0018 (7) | −0.0044 (7) |
C14 | 0.0248 (9) | 0.0239 (9) | 0.0318 (9) | 0.0049 (7) | −0.0002 (7) | −0.0088 (7) |
C15 | 0.0281 (9) | 0.0173 (8) | 0.0327 (9) | −0.0021 (7) | 0.0002 (7) | −0.0021 (7) |
C16 | 0.0216 (8) | 0.0215 (8) | 0.0230 (8) | −0.0017 (7) | 0.0013 (7) | 0.0001 (6) |
C17 | 0.0188 (8) | 0.0153 (8) | 0.0246 (8) | −0.0004 (6) | 0.0070 (7) | 0.0024 (6) |
C18 | 0.0227 (8) | 0.0156 (8) | 0.0243 (8) | −0.0018 (6) | 0.0079 (7) | −0.0001 (6) |
C19 | 0.0196 (8) | 0.0159 (8) | 0.0198 (8) | −0.0045 (6) | 0.0075 (6) | −0.0021 (6) |
C20 | 0.0320 (10) | 0.0197 (8) | 0.0304 (9) | −0.0023 (7) | 0.0171 (8) | −0.0052 (7) |
C21 | 0.0369 (10) | 0.0311 (10) | 0.0200 (8) | −0.0106 (8) | 0.0100 (7) | −0.0073 (7) |
C22 | 0.0299 (10) | 0.0317 (10) | 0.0218 (8) | −0.0067 (8) | 0.0014 (7) | −0.0010 (7) |
C23 | 0.0195 (8) | 0.0234 (9) | 0.0250 (8) | −0.0017 (7) | 0.0045 (7) | −0.0005 (6) |
C24 | 0.0255 (9) | 0.0275 (9) | 0.0302 (9) | −0.0040 (7) | 0.0129 (7) | −0.0043 (7) |
C25 | 0.0233 (8) | 0.0303 (9) | 0.0213 (8) | −0.0005 (7) | 0.0061 (7) | 0.0018 (7) |
C26 | 0.0226 (9) | 0.0253 (9) | 0.0292 (9) | −0.0033 (7) | 0.0086 (7) | −0.0011 (7) |
N1 | 0.0176 (7) | 0.0170 (7) | 0.0206 (7) | −0.0008 (5) | 0.0063 (5) | −0.0005 (5) |
N2 | 0.0193 (7) | 0.0216 (7) | 0.0219 (7) | −0.0026 (5) | 0.0075 (5) | −0.0016 (5) |
N3 | 0.0204 (7) | 0.0217 (7) | 0.0280 (7) | 0.0065 (6) | 0.0095 (6) | 0.0025 (6) |
O1 | 0.0321 (7) | 0.0195 (6) | 0.0309 (6) | 0.0012 (5) | 0.0145 (5) | −0.0034 (5) |
O2 | 0.0178 (6) | 0.0154 (5) | 0.0284 (6) | −0.0006 (4) | 0.0095 (5) | −0.0013 (4) |
O3 | 0.0247 (6) | 0.0285 (7) | 0.0237 (6) | 0.0039 (5) | 0.0017 (5) | 0.0043 (5) |
C1—N2 | 1.327 (2) | C13—H13 | 0.9500 |
C1—C2 | 1.409 (2) | C14—C15 | 1.379 (2) |
C1—C24 | 1.495 (2) | C14—H14 | 0.9500 |
C2—C3 | 1.356 (2) | C15—C16 | 1.388 (2) |
C2—C4 | 1.497 (2) | C15—H15 | 0.9500 |
C3—N1 | 1.3543 (19) | C16—H16 | 0.9500 |
C3—O2 | 1.3612 (17) | C17—O3 | 1.2148 (18) |
C4—C19 | 1.520 (2) | C17—N3 | 1.3606 (19) |
C4—C5 | 1.521 (2) | C18—C20 | 1.386 (2) |
C4—C17 | 1.558 (2) | C18—C19 | 1.388 (2) |
C5—C6 | 1.349 (2) | C18—N3 | 1.398 (2) |
C5—C7 | 1.476 (2) | C19—C23 | 1.375 (2) |
C6—O2 | 1.3866 (18) | C20—C21 | 1.391 (2) |
C6—C10 | 1.491 (2) | C20—H20 | 0.9500 |
C7—O1 | 1.2223 (18) | C21—C22 | 1.382 (2) |
C7—C8 | 1.509 (2) | C21—H21 | 0.9500 |
C8—C9 | 1.531 (2) | C22—C23 | 1.395 (2) |
C8—H8A | 0.9900 | C22—H22 | 0.9500 |
C8—H8B | 0.9900 | C23—H23 | 0.9500 |
C9—C25 | 1.526 (2) | C24—H24A | 0.9800 |
C9—C10 | 1.532 (2) | C24—H24B | 0.9800 |
C9—C26 | 1.534 (2) | C24—H24C | 0.9800 |
C10—H10A | 0.9900 | C25—H25A | 0.9800 |
C10—H10B | 0.9900 | C25—H25B | 0.9800 |
C11—C16 | 1.388 (2) | C25—H25C | 0.9800 |
C11—C12 | 1.390 (2) | C26—H26A | 0.9800 |
C11—N1 | 1.4243 (19) | C26—H26B | 0.9800 |
C12—C13 | 1.385 (2) | C26—H26C | 0.9800 |
C12—H12 | 0.9500 | N1—N2 | 1.3798 (17) |
C13—C14 | 1.383 (2) | N3—H3 | 0.8800 |
N2—C1—C2 | 111.11 (13) | C14—C15—C16 | 120.59 (15) |
N2—C1—C24 | 120.66 (14) | C14—C15—H15 | 119.7 |
C2—C1—C24 | 128.23 (14) | C16—C15—H15 | 119.7 |
C3—C2—C1 | 104.30 (13) | C11—C16—C15 | 119.16 (15) |
C3—C2—C4 | 122.48 (13) | C11—C16—H16 | 120.4 |
C1—C2—C4 | 133.20 (13) | C15—C16—H16 | 120.4 |
N1—C3—C2 | 109.73 (13) | O3—C17—N3 | 126.78 (14) |
N1—C3—O2 | 122.72 (13) | O3—C17—C4 | 125.62 (13) |
C2—C3—O2 | 127.55 (14) | N3—C17—C4 | 107.45 (12) |
C2—C4—C19 | 112.06 (12) | C20—C18—C19 | 121.39 (15) |
C2—C4—C5 | 106.84 (12) | C20—C18—N3 | 128.96 (15) |
C19—C4—C5 | 114.02 (12) | C19—C18—N3 | 109.64 (13) |
C2—C4—C17 | 109.50 (12) | C23—C19—C18 | 120.61 (14) |
C19—C4—C17 | 101.41 (12) | C23—C19—C4 | 130.31 (14) |
C5—C4—C17 | 113.03 (12) | C18—C19—C4 | 108.99 (13) |
C6—C5—C7 | 117.92 (14) | C18—C20—C21 | 117.64 (15) |
C6—C5—C4 | 124.82 (14) | C18—C20—H20 | 121.2 |
C7—C5—C4 | 117.27 (13) | C21—C20—H20 | 121.2 |
C5—C6—O2 | 124.03 (13) | C22—C21—C20 | 121.19 (15) |
C5—C6—C10 | 125.59 (14) | C22—C21—H21 | 119.4 |
O2—C6—C10 | 110.37 (12) | C20—C21—H21 | 119.4 |
O1—C7—C5 | 119.98 (14) | C21—C22—C23 | 120.53 (16) |
O1—C7—C8 | 122.15 (14) | C21—C22—H22 | 119.7 |
C5—C7—C8 | 117.87 (13) | C23—C22—H22 | 119.7 |
C7—C8—C9 | 113.26 (12) | C19—C23—C22 | 118.59 (15) |
C7—C8—H8A | 108.9 | C19—C23—H23 | 120.7 |
C9—C8—H8A | 108.9 | C22—C23—H23 | 120.7 |
C7—C8—H8B | 108.9 | C1—C24—H24A | 109.5 |
C9—C8—H8B | 108.9 | C1—C24—H24B | 109.5 |
H8A—C8—H8B | 107.7 | H24A—C24—H24B | 109.5 |
C25—C9—C8 | 109.30 (13) | C1—C24—H24C | 109.5 |
C25—C9—C10 | 110.20 (13) | H24A—C24—H24C | 109.5 |
C8—C9—C10 | 107.73 (12) | H24B—C24—H24C | 109.5 |
C25—C9—C26 | 109.71 (13) | C9—C25—H25A | 109.5 |
C8—C9—C26 | 110.52 (13) | C9—C25—H25B | 109.5 |
C10—C9—C26 | 109.35 (13) | H25A—C25—H25B | 109.5 |
C6—C10—C9 | 113.21 (13) | C9—C25—H25C | 109.5 |
C6—C10—H10A | 108.9 | H25A—C25—H25C | 109.5 |
C9—C10—H10A | 108.9 | H25B—C25—H25C | 109.5 |
C6—C10—H10B | 108.9 | C9—C26—H26A | 109.5 |
C9—C10—H10B | 108.9 | C9—C26—H26B | 109.5 |
H10A—C10—H10B | 107.7 | H26A—C26—H26B | 109.5 |
C16—C11—C12 | 120.63 (14) | C9—C26—H26C | 109.5 |
C16—C11—N1 | 118.57 (14) | H26A—C26—H26C | 109.5 |
C12—C11—N1 | 120.79 (14) | H26B—C26—H26C | 109.5 |
C13—C12—C11 | 119.23 (15) | C3—N1—N2 | 108.79 (12) |
C13—C12—H12 | 120.4 | C3—N1—C11 | 131.54 (13) |
C11—C12—H12 | 120.4 | N2—N1—C11 | 119.59 (12) |
C14—C13—C12 | 120.54 (15) | C1—N2—N1 | 106.07 (12) |
C14—C13—H13 | 119.7 | C17—N3—C18 | 112.26 (13) |
C12—C13—H13 | 119.7 | C17—N3—H3 | 123.9 |
C15—C14—C13 | 119.82 (15) | C18—N3—H3 | 123.9 |
C15—C14—H14 | 120.1 | C3—O2—C6 | 113.54 (11) |
C13—C14—H14 | 120.1 | ||
N2—C1—C2—C3 | 0.37 (17) | C14—C15—C16—C11 | −0.6 (2) |
C24—C1—C2—C3 | −179.09 (15) | C2—C4—C17—O3 | −61.79 (19) |
N2—C1—C2—C4 | −178.23 (15) | C19—C4—C17—O3 | 179.66 (14) |
C24—C1—C2—C4 | 2.3 (3) | C5—C4—C17—O3 | 57.2 (2) |
C1—C2—C3—N1 | −0.38 (16) | C2—C4—C17—N3 | 113.94 (13) |
C4—C2—C3—N1 | 178.42 (13) | C19—C4—C17—N3 | −4.61 (15) |
C1—C2—C3—O2 | 179.22 (14) | C5—C4—C17—N3 | −127.08 (13) |
C4—C2—C3—O2 | −2.0 (2) | C20—C18—C19—C23 | 2.5 (2) |
C3—C2—C4—C19 | −117.71 (15) | N3—C18—C19—C23 | −176.67 (13) |
C1—C2—C4—C19 | 60.7 (2) | C20—C18—C19—C4 | 179.44 (14) |
C3—C2—C4—C5 | 7.85 (19) | N3—C18—C19—C4 | 0.28 (17) |
C1—C2—C4—C5 | −173.75 (15) | C2—C4—C19—C23 | 62.4 (2) |
C3—C2—C4—C17 | 130.58 (15) | C5—C4—C19—C23 | −59.1 (2) |
C1—C2—C4—C17 | −51.0 (2) | C17—C4—C19—C23 | 179.12 (15) |
C2—C4—C5—C6 | −8.21 (19) | C2—C4—C19—C18 | −114.12 (14) |
C19—C4—C5—C6 | 116.16 (16) | C5—C4—C19—C18 | 124.35 (14) |
C17—C4—C5—C6 | −128.71 (15) | C17—C4—C19—C18 | 2.56 (15) |
C2—C4—C5—C7 | 171.85 (12) | C19—C18—C20—C21 | −1.2 (2) |
C19—C4—C5—C7 | −63.78 (17) | N3—C18—C20—C21 | 177.76 (15) |
C17—C4—C5—C7 | 51.35 (17) | C18—C20—C21—C22 | −0.7 (2) |
C7—C5—C6—O2 | −177.59 (13) | C20—C21—C22—C23 | 1.5 (3) |
C4—C5—C6—O2 | 2.5 (2) | C18—C19—C23—C22 | −1.7 (2) |
C7—C5—C6—C10 | 2.6 (2) | C4—C19—C23—C22 | −177.94 (15) |
C4—C5—C6—C10 | −177.33 (14) | C21—C22—C23—C19 | −0.2 (2) |
C6—C5—C7—O1 | 171.01 (14) | C2—C3—N1—N2 | 0.26 (16) |
C4—C5—C7—O1 | −9.1 (2) | O2—C3—N1—N2 | −179.36 (13) |
C6—C5—C7—C8 | −9.8 (2) | C2—C3—N1—C11 | −176.30 (14) |
C4—C5—C7—C8 | 170.11 (13) | O2—C3—N1—C11 | 4.1 (2) |
O1—C7—C8—C9 | −143.11 (15) | C16—C11—N1—C3 | 154.44 (15) |
C5—C7—C8—C9 | 37.76 (19) | C12—C11—N1—C3 | −26.1 (2) |
C7—C8—C9—C25 | 64.51 (17) | C16—C11—N1—N2 | −21.8 (2) |
C7—C8—C9—C10 | −55.24 (17) | C12—C11—N1—N2 | 157.68 (13) |
C7—C8—C9—C26 | −174.65 (13) | C2—C1—N2—N1 | −0.22 (16) |
C5—C6—C10—C9 | −23.1 (2) | C24—C1—N2—N1 | 179.28 (13) |
O2—C6—C10—C9 | 157.05 (12) | C3—N1—N2—C1 | −0.02 (16) |
C25—C9—C10—C6 | −71.83 (16) | C11—N1—N2—C1 | 177.02 (12) |
C8—C9—C10—C6 | 47.34 (17) | O3—C17—N3—C18 | −179.12 (15) |
C26—C9—C10—C6 | 167.49 (13) | C4—C17—N3—C18 | 5.21 (16) |
C16—C11—C12—C13 | 1.5 (2) | C20—C18—N3—C17 | 177.31 (15) |
N1—C11—C12—C13 | −178.02 (13) | C19—C18—N3—C17 | −3.61 (18) |
C11—C12—C13—C14 | −0.5 (2) | N1—C3—O2—C6 | 174.73 (13) |
C12—C13—C14—C15 | −0.9 (2) | C2—C3—O2—C6 | −4.8 (2) |
C13—C14—C15—C16 | 1.5 (2) | C5—C6—O2—C3 | 4.5 (2) |
C12—C11—C16—C15 | −0.9 (2) | C10—C6—O2—C3 | −175.68 (12) |
N1—C11—C16—C15 | 178.57 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···N2i | 0.88 | 2.05 | 2.9185 (18) | 172 |
C12—H12···O2 | 0.95 | 2.39 | 2.9780 (19) | 119 |
Symmetry code: (i) −x−1/2, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C26H23N3O3 |
Mr | 425.47 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 110 |
a, b, c (Å) | 11.8778 (19), 12.891 (2), 14.039 (2) |
β (°) | 100.280 (3) |
V (Å3) | 2115.1 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.46 × 0.40 × 0.39 |
Data collection | |
Diffractometer | Bruker SMART CCD 1K area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.960, 0.966 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9755, 4085, 3097 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.102, 1.05 |
No. of reflections | 4085 |
No. of parameters | 292 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.26, −0.21 |
Computer programs: SMART (Bruker, 1999), SAINT-Plus (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), SHELXTL (Sheldrick, 2008.
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···N2i | 0.88 | 2.05 | 2.9185 (18) | 171.5 |
C12—H12···O2 | 0.95 | 2.39 | 2.9780 (19) | 119.4 |
Symmetry code: (i) −x−1/2, y+1/2, −z+1/2. |
Acknowledgements
We are grateful to the National Natural Science Foundation of China (Nos. 21072077 and 20672046) and the Guangdong Natural Science Foundation (Nos. 10151063201000051 and 8151063201000016) for financial support.
References
Bruker (1999). SMART and SAINT-Plus. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Li, Y.-L., Chen, H., Shi, C.-L., Shi, D.-Q. & Ji, S.-J. (2010). J. Comb. Chem. 12, 231–237. Web of Science CrossRef CAS PubMed 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
Shemchuk, L. A., Chernykh, V. P. & Red'kin, R. G. (2008). Russ. J. Org. Chem. 44, 1816–1821. Google Scholar
Zhang, Y. & Panek, J. S. (2009). Org. Lett. 11, 3366–3369. Web of Science CSD CrossRef PubMed CAS Google Scholar
Zhu, S.-L., Ji, S.-J. & Zhang, Y. (2007). Tetrahedron, 63, 9365–9372. 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.
Spirocyclic systems are probably the most well known heterocycles (Shemchuk et al., 2008). Spiro compounds are characterized by their highly biological activities (Zhu et al., 2007; Li et al., 2010). The spirooxindoles which form the central skeleton of many pharmacologically active compounds and natural products have gained much prominence in recent days (Zhang et al., 2009). Herein, we report the crystal structure of the title compound.
The title compound is a formed from the reaciton of isatin, 3-methyl-1-phenyl-2-pyrazolin-5-one and 5,5-dimethylcyclohexane-1,3-dione. The molecular structure is shown in Fig. 1.
The ring C5—C10 adopts an envelope conformation. The dihedral angle between the aromatic ring C11—C16 and pyrazolin ring (C1—C2—C3—N1—N2) is 23.70 (8) °. The crystal structure is stabilized by N—H···N hydrogen bonding interactions, leading to a zigzag chain along the b axis (Fig. 2 and Table 1).
In addition, there is an intramolecular hydrogen bonding interaction between C12 and O2 (Table 1).