Acta Cryst. (2009). E65, o2375 [ doi:10.1107/S1600536809034515 ]
The asymmetric unit of the title compound, C15H12N2O3, contains two almost identical molecules forming an nearly C2-symmetric dimeric pattern. The dihedral angles between the pyrrole ring and the phthalimide unit are 82.95 (8) and 86.57 (8)° for the two molecules. Within such a dimer, the phthalimide units of the two molecules form a dihedral angle of 1.5 (5)°.
The title compound was synthesized following the general procedure for the preparation of 2-acylpyrroles established by Katritzky et al. (2003). Briefly, a solution of TiCl4 in CH2Cl2 (1.0 M, 17 ml) was added to a mixture of 1-methyl-1H-pyrrole (10,36 mmol) and 2-(2-(1H-benzo[d][1,2,3]triazol-1-yl)-2-oxoethyl) isoindoline -1,3-dione (8,3 mmol) in CH2Cl2 (20 ml) and stirred for 4 h at room temperature. The reaction was quenched by adding MeOH (5 ml). The solvents were evaporated under reduced pressure, and the residue was subjected to silica gel column chromatography using a hexane/ethylacetate gradient (80:20 - 70:30) as mobile phase to purify the product (yield: 67.5%). Crystals of the title compound were obtained by slow evaporation of a methanol solution at room temperature.
Hydrogen atoms were placed at calculated positions with C—H = 0.95 Å (aromatic) or 0.98–0.99 Å (sp3 C-atoms). All H atoms were refined in the riding-model approximation with isotropic displacement parameters (set at 1.2–1.5 times of the Ueq of the parent atom).
Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell refinement: CAD-4 Software (Enraf–Nonius, 1989); data reduction: CORINC (Dräger & Gattow, 1971); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON (Spek, 2009).
| Fig. 1. View of the title compound. Displacement ellipsoids are drawn at the 50% probability level. Hydrogen atoms omitted. |
| C15H12N2O3 | F(000) = 1120 |
| Mr = 268.27 | Dx = 1.422 Mg m−3 |
| Monoclinic, P21/c | Cu Kα radiation, λ = 1.54178 Å |
| Hall symbol: -P 2ybc | Cell parameters from 25 reflections |
| a = 10.8897 (7) Å | θ = 65–70° |
| b = 14.8466 (4) Å | µ = 0.84 mm−1 |
| c = 15.8200 (9) Å | T = 193 K |
| β = 101.619 (3)° | Block, colourless |
| V = 2505.3 (2) Å3 | 0.51 × 0.29 × 0.26 mm |
| Z = 8 |
| Enraf–Nonius CAD-4 diffractometer | Rint = 0.034 |
| Radiation source: rotating anode | θmax = 69.9°, θmin = 4.1° |
| graphite | h = 0→13 |
| ω/2θ scans | k = 0→18 |
| 5001 measured reflections | l = −19→18 |
| 4744 independent reflections | 3 standard reflections every 60 min |
| 4400 reflections with I > 2σ(I) | intensity decay: 2% |
| 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)] = 0.045 | H-atom parameters constrained |
| wR(F2) = 0.127 | w = 1/[σ2(Fo2) + (0.073P)2 + 1.0728P] where P = (Fo2 + 2Fc2)/3 |
| S = 1.05 | (Δ/σ)max = 0.001 |
| 4744 reflections | Δρmax = 0.34 e Å−3 |
| 364 parameters | Δρmin = −0.27 e Å−3 |
| 0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0026 (3) |
| C15H12N2O3 | V = 2505.3 (2) Å3 |
| Mr = 268.27 | Z = 8 |
| Monoclinic, P21/c | Cu Kα radiation |
| a = 10.8897 (7) Å | µ = 0.84 mm−1 |
| b = 14.8466 (4) Å | T = 193 K |
| c = 15.8200 (9) Å | 0.51 × 0.29 × 0.26 mm |
| β = 101.619 (3)° |
| Enraf–Nonius CAD-4 diffractometer | Rint = 0.034 |
| 5001 measured reflections | θmax = 69.9° |
| 4744 independent reflections | 3 standard reflections every 60 min |
| 4400 reflections with I > 2σ(I) | intensity decay: 2% |
| R[F2 > 2σ(F2)] = 0.045 | H-atom parameters constrained |
| wR(F2) = 0.127 | Δρmax = 0.34 e Å−3 |
| S = 1.05 | Δρmin = −0.27 e Å−3 |
| 4744 reflections | Absolute structure: ? |
| 364 parameters | Flack parameter: ? |
| 0 restraints | Rogers parameter: ? |
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 | 0.39270 (13) | 0.34485 (10) | 0.01591 (9) | 0.0329 (3) | |
| C2 | 0.46171 (15) | 0.26582 (11) | 0.03592 (10) | 0.0297 (3) | |
| C3 | 0.57346 (14) | 0.29082 (10) | 0.10221 (10) | 0.0273 (3) | |
| C4 | 0.67252 (15) | 0.23893 (11) | 0.14345 (10) | 0.0330 (4) | |
| H4 | 0.6763 | 0.1762 | 0.1323 | 0.040* | |
| C5 | 0.76675 (16) | 0.28191 (12) | 0.20197 (11) | 0.0360 (4) | |
| H5 | 0.8368 | 0.2481 | 0.2309 | 0.043* | |
| C6 | 0.76016 (16) | 0.37357 (12) | 0.21878 (11) | 0.0352 (4) | |
| H6 | 0.8259 | 0.4015 | 0.2588 | 0.042* | |
| C7 | 0.65856 (16) | 0.42500 (11) | 0.17785 (11) | 0.0331 (4) | |
| H7 | 0.6531 | 0.4874 | 0.1901 | 0.040* | |
| C8 | 0.56604 (14) | 0.38244 (10) | 0.11897 (10) | 0.0280 (3) | |
| C9 | 0.44834 (15) | 0.41772 (11) | 0.06494 (11) | 0.0320 (4) | |
| C10 | 0.28288 (16) | 0.35196 (13) | −0.05247 (11) | 0.0383 (4) | |
| H10A | 0.2792 | 0.2987 | −0.0906 | 0.046* | |
| H10B | 0.2911 | 0.4061 | −0.0875 | 0.046* | |
| C11 | 0.16021 (15) | 0.35816 (11) | −0.01983 (10) | 0.0300 (3) | |
| O12 | 0.15704 (12) | 0.33737 (9) | 0.05414 (8) | 0.0427 (3) | |
| C13 | 0.05263 (15) | 0.38909 (10) | −0.08287 (10) | 0.0294 (3) | |
| N14 | −0.06493 (13) | 0.40234 (9) | −0.06445 (9) | 0.0320 (3) | |
| C15 | −0.14245 (17) | 0.43340 (12) | −0.13630 (12) | 0.0397 (4) | |
| H15 | −0.2284 | 0.4481 | −0.1406 | 0.048* | |
| C16 | −0.07732 (18) | 0.44034 (13) | −0.20208 (12) | 0.0427 (4) | |
| H16 | −0.1098 | 0.4603 | −0.2593 | 0.051* | |
| C17 | 0.04520 (17) | 0.41260 (11) | −0.16894 (11) | 0.0355 (4) | |
| H17 | 0.1117 | 0.4102 | −0.1996 | 0.043* | |
| O18 | 0.43333 (11) | 0.19337 (8) | 0.00271 (8) | 0.0375 (3) | |
| O19 | 0.40481 (12) | 0.49318 (8) | 0.06132 (9) | 0.0428 (3) | |
| C20 | −0.10471 (17) | 0.38641 (12) | 0.01728 (12) | 0.0388 (4) | |
| H20A | −0.1907 | 0.4083 | 0.0129 | 0.058* | |
| H20B | −0.0486 | 0.4186 | 0.0637 | 0.058* | |
| H20C | −0.1015 | 0.3217 | 0.0299 | 0.058* | |
| N21 | 0.58245 (12) | 0.42578 (9) | 0.39592 (9) | 0.0302 (3) | |
| C22 | 0.47025 (15) | 0.43972 (10) | 0.33749 (10) | 0.0287 (3) | |
| C23 | 0.43484 (14) | 0.35043 (10) | 0.29679 (9) | 0.0262 (3) | |
| C24 | 0.33207 (15) | 0.32607 (11) | 0.23521 (10) | 0.0304 (3) | |
| H24 | 0.2701 | 0.3687 | 0.2106 | 0.036* | |
| C25 | 0.32325 (16) | 0.23539 (11) | 0.21062 (10) | 0.0334 (4) | |
| H25 | 0.2539 | 0.2160 | 0.1680 | 0.040* | |
| C26 | 0.41323 (16) | 0.17345 (11) | 0.24692 (11) | 0.0345 (4) | |
| H26 | 0.4044 | 0.1124 | 0.2288 | 0.041* | |
| C27 | 0.51668 (16) | 0.19874 (11) | 0.30963 (11) | 0.0329 (4) | |
| H27 | 0.5785 | 0.1563 | 0.3349 | 0.040* | |
| C28 | 0.52509 (14) | 0.28838 (10) | 0.33324 (10) | 0.0278 (3) | |
| C29 | 0.62031 (14) | 0.33601 (11) | 0.39818 (10) | 0.0291 (3) | |
| C30 | 0.64309 (16) | 0.49219 (11) | 0.45774 (11) | 0.0335 (4) | |
| H30A | 0.6652 | 0.4638 | 0.5155 | 0.040* | |
| H30B | 0.5833 | 0.5416 | 0.4612 | 0.040* | |
| C31 | 0.76166 (14) | 0.53162 (10) | 0.43435 (10) | 0.0265 (3) | |
| O32 | 0.77978 (11) | 0.52463 (8) | 0.36106 (7) | 0.0344 (3) | |
| C33 | 0.84253 (14) | 0.57881 (10) | 0.50392 (10) | 0.0270 (3) | |
| N34 | 0.95340 (12) | 0.62135 (9) | 0.49670 (9) | 0.0288 (3) | |
| C35 | 1.00335 (15) | 0.66000 (11) | 0.57314 (11) | 0.0344 (4) | |
| H35 | 1.0793 | 0.6934 | 0.5852 | 0.041* | |
| C36 | 0.92692 (16) | 0.64334 (12) | 0.63070 (11) | 0.0363 (4) | |
| H36 | 0.9402 | 0.6632 | 0.6889 | 0.044* | |
| C37 | 0.82680 (15) | 0.59226 (11) | 0.58807 (11) | 0.0327 (4) | |
| H37 | 0.7594 | 0.5703 | 0.6121 | 0.039* | |
| O38 | 0.41466 (11) | 0.51066 (8) | 0.32588 (8) | 0.0388 (3) | |
| O39 | 0.71219 (11) | 0.30649 (9) | 0.44629 (8) | 0.0393 (3) | |
| C40 | 1.00841 (16) | 0.62710 (12) | 0.42003 (11) | 0.0364 (4) | |
| H40A | 0.9606 | 0.6701 | 0.3792 | 0.055* | |
| H40B | 1.0060 | 0.5677 | 0.3928 | 0.055* | |
| H40C | 1.0956 | 0.6474 | 0.4366 | 0.055* |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| N1 | 0.0290 (7) | 0.0358 (7) | 0.0341 (7) | 0.0020 (5) | 0.0066 (5) | −0.0004 (6) |
| C2 | 0.0308 (8) | 0.0310 (8) | 0.0298 (8) | −0.0018 (6) | 0.0123 (6) | −0.0003 (6) |
| C3 | 0.0284 (7) | 0.0282 (7) | 0.0272 (7) | −0.0024 (6) | 0.0103 (6) | −0.0014 (6) |
| C4 | 0.0365 (9) | 0.0283 (8) | 0.0355 (8) | 0.0024 (6) | 0.0102 (7) | −0.0005 (6) |
| C5 | 0.0332 (8) | 0.0402 (9) | 0.0339 (8) | 0.0037 (7) | 0.0053 (7) | 0.0016 (7) |
| C6 | 0.0329 (8) | 0.0409 (9) | 0.0316 (8) | −0.0050 (7) | 0.0060 (6) | −0.0051 (7) |
| C7 | 0.0374 (9) | 0.0281 (8) | 0.0364 (8) | −0.0038 (6) | 0.0132 (7) | −0.0052 (6) |
| C8 | 0.0293 (8) | 0.0273 (8) | 0.0303 (8) | −0.0007 (6) | 0.0127 (6) | −0.0005 (6) |
| C9 | 0.0336 (8) | 0.0307 (8) | 0.0352 (8) | 0.0018 (6) | 0.0151 (7) | 0.0014 (6) |
| C10 | 0.0325 (9) | 0.0519 (10) | 0.0304 (8) | 0.0036 (7) | 0.0056 (7) | 0.0028 (7) |
| C11 | 0.0326 (8) | 0.0277 (8) | 0.0289 (8) | −0.0009 (6) | 0.0047 (6) | −0.0002 (6) |
| O12 | 0.0387 (7) | 0.0584 (8) | 0.0311 (6) | 0.0024 (6) | 0.0069 (5) | 0.0083 (6) |
| C13 | 0.0305 (8) | 0.0254 (7) | 0.0324 (8) | −0.0009 (6) | 0.0064 (6) | −0.0012 (6) |
| N14 | 0.0308 (7) | 0.0279 (7) | 0.0374 (7) | −0.0002 (5) | 0.0072 (6) | −0.0012 (5) |
| C15 | 0.0332 (9) | 0.0356 (9) | 0.0478 (10) | 0.0039 (7) | 0.0020 (7) | −0.0004 (7) |
| C16 | 0.0467 (10) | 0.0408 (10) | 0.0370 (9) | 0.0044 (8) | 0.0000 (8) | 0.0048 (8) |
| C17 | 0.0393 (9) | 0.0353 (9) | 0.0316 (8) | 0.0008 (7) | 0.0068 (7) | 0.0004 (7) |
| O18 | 0.0411 (7) | 0.0339 (6) | 0.0379 (6) | −0.0068 (5) | 0.0089 (5) | −0.0080 (5) |
| O19 | 0.0436 (7) | 0.0335 (6) | 0.0538 (8) | 0.0113 (5) | 0.0158 (6) | 0.0024 (5) |
| C20 | 0.0393 (9) | 0.0369 (9) | 0.0440 (10) | −0.0007 (7) | 0.0171 (8) | −0.0028 (7) |
| N21 | 0.0304 (7) | 0.0274 (7) | 0.0325 (7) | −0.0070 (5) | 0.0055 (5) | −0.0021 (5) |
| C22 | 0.0315 (8) | 0.0258 (8) | 0.0304 (8) | −0.0037 (6) | 0.0100 (6) | 0.0021 (6) |
| C23 | 0.0287 (7) | 0.0257 (7) | 0.0255 (7) | −0.0035 (6) | 0.0087 (6) | 0.0016 (6) |
| C24 | 0.0311 (8) | 0.0320 (8) | 0.0279 (8) | −0.0017 (6) | 0.0061 (6) | 0.0014 (6) |
| C25 | 0.0358 (8) | 0.0353 (9) | 0.0292 (8) | −0.0102 (7) | 0.0072 (6) | −0.0037 (6) |
| C26 | 0.0440 (9) | 0.0271 (8) | 0.0351 (8) | −0.0071 (7) | 0.0145 (7) | −0.0049 (6) |
| C27 | 0.0365 (9) | 0.0274 (8) | 0.0369 (8) | 0.0020 (6) | 0.0124 (7) | 0.0005 (6) |
| C28 | 0.0273 (7) | 0.0285 (8) | 0.0292 (8) | −0.0026 (6) | 0.0098 (6) | 0.0011 (6) |
| C29 | 0.0266 (8) | 0.0313 (8) | 0.0303 (8) | −0.0031 (6) | 0.0081 (6) | 0.0019 (6) |
| C30 | 0.0348 (8) | 0.0331 (8) | 0.0333 (8) | −0.0100 (7) | 0.0083 (7) | −0.0070 (7) |
| C31 | 0.0282 (7) | 0.0200 (7) | 0.0304 (8) | 0.0014 (6) | 0.0040 (6) | 0.0004 (6) |
| O32 | 0.0391 (6) | 0.0341 (6) | 0.0305 (6) | −0.0056 (5) | 0.0085 (5) | −0.0030 (5) |
| C33 | 0.0252 (7) | 0.0232 (7) | 0.0323 (8) | 0.0004 (6) | 0.0048 (6) | 0.0003 (6) |
| N34 | 0.0264 (6) | 0.0261 (6) | 0.0338 (7) | −0.0007 (5) | 0.0056 (5) | 0.0001 (5) |
| C35 | 0.0287 (8) | 0.0318 (8) | 0.0399 (9) | −0.0027 (6) | 0.0005 (7) | −0.0038 (7) |
| C36 | 0.0336 (8) | 0.0414 (9) | 0.0323 (8) | −0.0001 (7) | 0.0028 (7) | −0.0079 (7) |
| C37 | 0.0289 (8) | 0.0370 (9) | 0.0322 (8) | −0.0010 (6) | 0.0062 (6) | −0.0027 (7) |
| O38 | 0.0431 (7) | 0.0255 (6) | 0.0465 (7) | 0.0015 (5) | 0.0062 (5) | 0.0008 (5) |
| O39 | 0.0294 (6) | 0.0444 (7) | 0.0415 (7) | 0.0009 (5) | 0.0014 (5) | 0.0020 (5) |
| C40 | 0.0311 (8) | 0.0417 (9) | 0.0381 (9) | −0.0029 (7) | 0.0108 (7) | 0.0031 (7) |
| N1—C2 | 1.395 (2) | N21—C22 | 1.391 (2) |
| N1—C9 | 1.396 (2) | N21—C29 | 1.393 (2) |
| N1—C10 | 1.446 (2) | N21—C30 | 1.451 (2) |
| C2—O18 | 1.210 (2) | C22—O38 | 1.210 (2) |
| C2—C3 | 1.485 (2) | C22—C23 | 1.490 (2) |
| C3—C4 | 1.378 (2) | C23—C24 | 1.376 (2) |
| C3—C8 | 1.391 (2) | C23—C28 | 1.385 (2) |
| C4—C5 | 1.391 (2) | C24—C25 | 1.399 (2) |
| C4—H4 | 0.9500 | C24—H24 | 0.9500 |
| C5—C6 | 1.391 (2) | C25—C26 | 1.382 (2) |
| C5—H5 | 0.9500 | C25—H25 | 0.9500 |
| C6—C7 | 1.392 (2) | C26—C27 | 1.394 (2) |
| C6—H6 | 0.9500 | C26—H26 | 0.9500 |
| C7—C8 | 1.380 (2) | C27—C28 | 1.380 (2) |
| C7—H7 | 0.9500 | C27—H27 | 0.9500 |
| C8—C9 | 1.485 (2) | C28—C29 | 1.484 (2) |
| C9—O19 | 1.213 (2) | C29—O39 | 1.2106 (19) |
| C10—C11 | 1.529 (2) | C30—C31 | 1.529 (2) |
| C10—H10A | 0.9900 | C30—H30A | 0.9900 |
| C10—H10B | 0.9900 | C30—H30B | 0.9900 |
| C11—O12 | 1.217 (2) | C31—O32 | 1.2191 (19) |
| C11—C13 | 1.452 (2) | C31—C33 | 1.445 (2) |
| C13—N14 | 1.383 (2) | C33—N34 | 1.388 (2) |
| C13—C17 | 1.392 (2) | C33—C37 | 1.390 (2) |
| N14—C15 | 1.353 (2) | N34—C35 | 1.350 (2) |
| N14—C20 | 1.463 (2) | N34—C40 | 1.460 (2) |
| C15—C16 | 1.376 (3) | C35—C36 | 1.374 (2) |
| C15—H15 | 0.9500 | C35—H35 | 0.9500 |
| C16—C17 | 1.394 (3) | C36—C37 | 1.387 (2) |
| C16—H16 | 0.9500 | C36—H36 | 0.9500 |
| C17—H17 | 0.9500 | C37—H37 | 0.9500 |
| C20—H20A | 0.9800 | C40—H40A | 0.9800 |
| C20—H20B | 0.9800 | C40—H40B | 0.9800 |
| C20—H20C | 0.9800 | C40—H40C | 0.9800 |
| C2—N1—C9 | 111.84 (13) | C22—N21—C29 | 112.03 (13) |
| C2—N1—C10 | 123.91 (14) | C22—N21—C30 | 124.51 (14) |
| C9—N1—C10 | 124.06 (15) | C29—N21—C30 | 122.72 (14) |
| O18—C2—N1 | 124.79 (15) | O38—C22—N21 | 125.16 (15) |
| O18—C2—C3 | 129.09 (15) | O38—C22—C23 | 129.10 (15) |
| N1—C2—C3 | 106.11 (13) | N21—C22—C23 | 105.72 (13) |
| C4—C3—C8 | 121.75 (15) | C24—C23—C28 | 121.84 (14) |
| C4—C3—C2 | 130.29 (15) | C24—C23—C22 | 129.99 (14) |
| C8—C3—C2 | 107.96 (13) | C28—C23—C22 | 108.16 (13) |
| C3—C4—C5 | 117.45 (15) | C23—C24—C25 | 116.77 (15) |
| C3—C4—H4 | 121.3 | C23—C24—H24 | 121.6 |
| C5—C4—H4 | 121.3 | C25—C24—H24 | 121.6 |
| C4—C5—C6 | 121.10 (16) | C26—C25—C24 | 121.44 (15) |
| C4—C5—H5 | 119.5 | C26—C25—H25 | 119.3 |
| C6—C5—H5 | 119.5 | C24—C25—H25 | 119.3 |
| C5—C6—C7 | 120.96 (15) | C25—C26—C27 | 121.34 (15) |
| C5—C6—H6 | 119.5 | C25—C26—H26 | 119.3 |
| C7—C6—H6 | 119.5 | C27—C26—H26 | 119.3 |
| C8—C7—C6 | 117.81 (15) | C28—C27—C26 | 116.89 (15) |
| C8—C7—H7 | 121.1 | C28—C27—H27 | 121.6 |
| C6—C7—H7 | 121.1 | C26—C27—H27 | 121.6 |
| C7—C8—C3 | 120.92 (15) | C27—C28—C23 | 121.71 (15) |
| C7—C8—C9 | 130.92 (15) | C27—C28—C29 | 130.24 (15) |
| C3—C8—C9 | 108.15 (14) | C23—C28—C29 | 108.03 (13) |
| O19—C9—N1 | 124.58 (16) | O39—C29—N21 | 124.42 (15) |
| O19—C9—C8 | 129.52 (16) | O39—C29—C28 | 129.53 (15) |
| N1—C9—C8 | 105.91 (13) | N21—C29—C28 | 106.03 (13) |
| N1—C10—C11 | 113.51 (14) | N21—C30—C31 | 112.88 (13) |
| N1—C10—H10A | 108.9 | N21—C30—H30A | 109.0 |
| C11—C10—H10A | 108.9 | C31—C30—H30A | 109.0 |
| N1—C10—H10B | 108.9 | N21—C30—H30B | 109.0 |
| C11—C10—H10B | 108.9 | C31—C30—H30B | 109.0 |
| H10A—C10—H10B | 107.7 | H30A—C30—H30B | 107.8 |
| O12—C11—C13 | 124.43 (15) | O32—C31—C33 | 125.11 (14) |
| O12—C11—C10 | 120.35 (14) | O32—C31—C30 | 120.25 (13) |
| C13—C11—C10 | 115.22 (14) | C33—C31—C30 | 114.58 (13) |
| N14—C13—C17 | 107.25 (14) | N34—C33—C37 | 106.88 (13) |
| N14—C13—C11 | 123.60 (14) | N34—C33—C31 | 124.40 (14) |
| C17—C13—C11 | 129.14 (15) | C37—C33—C31 | 128.71 (14) |
| C15—N14—C13 | 108.60 (14) | C35—N34—C33 | 108.67 (13) |
| C15—N14—C20 | 123.49 (15) | C35—N34—C40 | 124.11 (14) |
| C13—N14—C20 | 127.92 (14) | C33—N34—C40 | 127.20 (13) |
| N14—C15—C16 | 109.35 (16) | N34—C35—C36 | 109.18 (15) |
| N14—C15—H15 | 125.3 | N34—C35—H35 | 125.4 |
| C16—C15—H15 | 125.3 | C36—C35—H35 | 125.4 |
| C15—C16—C17 | 107.07 (16) | C35—C36—C37 | 107.34 (15) |
| C15—C16—H16 | 126.5 | C35—C36—H36 | 126.3 |
| C17—C16—H16 | 126.5 | C37—C36—H36 | 126.3 |
| C13—C17—C16 | 107.74 (16) | C36—C37—C33 | 107.93 (14) |
| C13—C17—H17 | 126.1 | C36—C37—H37 | 126.0 |
| C16—C17—H17 | 126.1 | C33—C37—H37 | 126.0 |
| N14—C20—H20A | 109.5 | N34—C40—H40A | 109.5 |
| N14—C20—H20B | 109.5 | N34—C40—H40B | 109.5 |
| H20A—C20—H20B | 109.5 | H40A—C40—H40B | 109.5 |
| N14—C20—H20C | 109.5 | N34—C40—H40C | 109.5 |
| H20A—C20—H20C | 109.5 | H40A—C40—H40C | 109.5 |
| H20B—C20—H20C | 109.5 | H40B—C40—H40C | 109.5 |
| C9—N1—C2—O18 | 179.77 (15) | C29—N21—C22—O38 | 176.76 (15) |
| C10—N1—C2—O18 | −5.2 (2) | C30—N21—C22—O38 | 6.4 (2) |
| C9—N1—C2—C3 | −1.54 (17) | C29—N21—C22—C23 | −1.60 (17) |
| C10—N1—C2—C3 | 173.48 (14) | C30—N21—C22—C23 | −171.96 (13) |
| O18—C2—C3—C4 | −0.6 (3) | O38—C22—C23—C24 | 1.2 (3) |
| N1—C2—C3—C4 | −179.19 (15) | N21—C22—C23—C24 | 179.45 (15) |
| O18—C2—C3—C8 | 178.89 (16) | O38—C22—C23—C28 | −177.41 (16) |
| N1—C2—C3—C8 | 0.28 (16) | N21—C22—C23—C28 | 0.87 (16) |
| C8—C3—C4—C5 | −1.0 (2) | C28—C23—C24—C25 | −0.4 (2) |
| C2—C3—C4—C5 | 178.42 (15) | C22—C23—C24—C25 | −178.77 (15) |
| C3—C4—C5—C6 | 0.7 (2) | C23—C24—C25—C26 | 0.3 (2) |
| C4—C5—C6—C7 | 0.4 (3) | C24—C25—C26—C27 | 0.0 (2) |
| C5—C6—C7—C8 | −1.2 (2) | C25—C26—C27—C28 | −0.3 (2) |
| C6—C7—C8—C3 | 1.0 (2) | C26—C27—C28—C23 | 0.3 (2) |
| C6—C7—C8—C9 | −179.49 (15) | C26—C27—C28—C29 | 178.62 (15) |
| C4—C3—C8—C7 | 0.2 (2) | C24—C23—C28—C27 | 0.0 (2) |
| C2—C3—C8—C7 | −179.38 (13) | C22—C23—C28—C27 | 178.75 (14) |
| C4—C3—C8—C9 | −179.49 (14) | C24—C23—C28—C29 | −178.60 (13) |
| C2—C3—C8—C9 | 0.98 (16) | C22—C23—C28—C29 | 0.11 (16) |
| C2—N1—C9—O19 | −177.88 (15) | C22—N21—C29—O39 | −176.96 (15) |
| C10—N1—C9—O19 | 7.1 (3) | C30—N21—C29—O39 | −6.4 (2) |
| C2—N1—C9—C8 | 2.12 (17) | C22—N21—C29—C28 | 1.68 (17) |
| C10—N1—C9—C8 | −172.89 (14) | C30—N21—C29—C28 | 172.23 (13) |
| C7—C8—C9—O19 | −1.5 (3) | C27—C28—C29—O39 | −1.0 (3) |
| C3—C8—C9—O19 | 178.12 (16) | C23—C28—C29—O39 | 177.49 (16) |
| C7—C8—C9—N1 | 178.52 (16) | C27—C28—C29—N21 | −179.54 (16) |
| C3—C8—C9—N1 | −1.88 (17) | C23—C28—C29—N21 | −1.06 (16) |
| C2—N1—C10—C11 | 106.72 (18) | C22—N21—C30—C31 | −107.89 (17) |
| C9—N1—C10—C11 | −78.9 (2) | C29—N21—C30—C31 | 82.75 (18) |
| N1—C10—C11—O12 | −16.2 (2) | N21—C30—C31—O32 | 18.2 (2) |
| N1—C10—C11—C13 | 164.30 (14) | N21—C30—C31—C33 | −164.23 (13) |
| O12—C11—C13—N14 | 3.1 (3) | O32—C31—C33—N34 | −1.2 (2) |
| C10—C11—C13—N14 | −177.40 (15) | C30—C31—C33—N34 | −178.61 (14) |
| O12—C11—C13—C17 | −178.50 (17) | O32—C31—C33—C37 | 177.80 (16) |
| C10—C11—C13—C17 | 1.0 (3) | C30—C31—C33—C37 | 0.4 (2) |
| C17—C13—N14—C15 | −0.31 (18) | C37—C33—N34—C35 | −0.45 (17) |
| C11—C13—N14—C15 | 178.39 (15) | C31—C33—N34—C35 | 178.71 (14) |
| C17—C13—N14—C20 | 179.46 (15) | C37—C33—N34—C40 | −178.90 (15) |
| C11—C13—N14—C20 | −1.8 (3) | C31—C33—N34—C40 | 0.3 (2) |
| C13—N14—C15—C16 | 0.3 (2) | C33—N34—C35—C36 | 0.11 (19) |
| C20—N14—C15—C16 | −179.47 (16) | C40—N34—C35—C36 | 178.62 (15) |
| N14—C15—C16—C17 | −0.2 (2) | N34—C35—C36—C37 | 0.3 (2) |
| N14—C13—C17—C16 | 0.19 (19) | C35—C36—C37—C33 | −0.6 (2) |
| C11—C13—C17—C16 | −178.41 (16) | N34—C33—C37—C36 | 0.62 (18) |
| C15—C16—C17—C13 | 0.0 (2) | C31—C33—C37—C36 | −178.50 (15) |
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Spek, A. L. (2009). Acta Cryst. D65, 148–155.
Acylpyrroles are interesting building-blocks in the synthesis of therapeutic agents, e.g. in the preparation of small molecule drugs used for chemotherapy (Massa et al., 1990). In line with this notion, regiospecific C-acylation of pyrroles in 2- or 3-position is a key for straightforward synthetic strategies of such organic molecules. As shown by Katritzky et al. (2003) regioselective 2-acylation of pyrroles can be achieved by using N-acylbenzotriazoles as auxiliar in the presence of TiCl4. Accordingly to this concept, the title compound was synthesized and we confirmed by crystal structure analysis the pyrrole system to be substituted in 2-position.
The symmetric crystal structure contains two highly similar molecules forming a dimeric pattern. The dihedral angle between the pyrrole and phtalimid moiety of molecule A is 82.95 (8)°, wheras molecule B is forming an angle of 86.57 (8)° between these aromatic systems. However, the N-phtalyl-moieties of molecule A and B, respectively, are forming a dihedral angle of 1.5 (5)°. The two crystallographic independend molecules form dimers by πi-πi-interactions. The distance between the centroid of the ring C3 - C8 (molecule A) and the least square plane C23 - C28 (molecule B) is 3.45 Å. A perspective view of the title compound is shown in Figure 1.