Acta Cryst. (2008). E64, o649 [ doi:10.1107/S1600536808005199 ]
In the title compound, C20H21NO3, the heterocyclic six-membered ring adopts a half-chair conformation and the pyrrolidine ring adopts an envelope conformation. The molecular conformation is stabilized by C-H
O and C-HN interactions.
A solution of (Z)-methyl 2-((2 - formylphenoxy) methyl)-3- phenylacrylate (1 mmol), sarcosine (1 mmol), in anhydrous methanol (10 ml), was refluxed. Completion of the reaction was evidenced by TLC analysis. The solvent was removed in vacuum. The crude product was subjected to column chromatography on silica gel (100–200 mesh) using petroleum ether – ethyl acetate (7:3) as the eluent. Compound was recrystallized from methanol.
H atoms were placed in idealized positions and allowed to ride on their parent atoms, with C—H = 0.93, 0.98, 0.97 and 0.96 Å for aromatic, methine, methylene and methyl H respectively, and Uiso(H) = 1.5Ueq(C) for methyl H, and Uiso(H) = 1.2Ueq(C) for all other H atoms.
Data collection: APEX2 (Bruker, 2004); cell refinement: APEX2/SAINT (Bruker, 2004); data reduction: SAINT/XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: PLATON (Spek, 2003).
![[Figure 1]](./bt2680fig1thm.gif)
| Fig. 1. The molecular structure of the title compound with 30% probability displacement ellipsoids |
![[Figure 2]](./bt2680fig2thm.gif)
| Fig. 2. The packing of the molecules viewed down the a axis. |
| C20H21NO3 | Z = 2 |
| Mr = 323.38 | F000 = 344 |
| Triclinic, P1 | Dx = 1.301 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation λ = 0.71073 Å |
| a = 7.9557 (4) Å | Cell parameters from 5117 reflections |
| b = 10.2575 (7) Å | θ = 2.6–28.1º |
| c = 10.2993 (8) Å | µ = 0.09 mm−1 |
| α = 79.626 (5)º | T = 293 (2) K |
| β = 87.361 (5)º | Prism, colourless |
| γ = 88.744 (4)º | 0.20 × 0.20 × 0.12 mm |
| V = 825.79 (9) Å3 |
| Bruker KappaAPEX2 diffractometer | 4126 independent reflections |
| Radiation source: fine-focus sealed tube | 3051 reflections with I > 2σ(I) |
| Monochromator: graphite | Rint = 0.030 |
| T = 293(2) K | θmax = 28.4º |
| ω and φ scans | θmin = 2.6º |
| Absorption correction: multi-scan (Blessing, 1995) | h = −10→10 |
| Tmin = 0.983, Tmax = 0.990 | k = −13→13 |
| 18704 measured reflections | l = −13→13 |
| Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
| Least-squares matrix: full | H-atom parameters constrained |
| R[F2 > 2σ(F2)] = 0.046 | w = 1/[σ2(Fo2) + (0.0739P)2 + 0.1492P] where P = (Fo2 + 2Fc2)/3 |
| wR(F2) = 0.143 | (Δ/σ)max < 0.001 |
| S = 1.03 | Δρmax = 0.23 e Å−3 |
| 4126 reflections | Δρmin = −0.21 e Å−3 |
| 218 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.024 (5) |
| Secondary atom site location: difference Fourier map |
| C20H21NO3 | γ = 88.744 (4)º |
| Mr = 323.38 | V = 825.79 (9) Å3 |
| Triclinic, P1 | Z = 2 |
| a = 7.9557 (4) Å | Mo Kα |
| b = 10.2575 (7) Å | µ = 0.09 mm−1 |
| c = 10.2993 (8) Å | T = 293 (2) K |
| α = 79.626 (5)º | 0.20 × 0.20 × 0.12 mm |
| β = 87.361 (5)º |
| Bruker KappaAPEX2 diffractometer | 4126 independent reflections |
| Absorption correction: multi-scan (Blessing, 1995) | 3051 reflections with I > 2σ(I) |
| Tmin = 0.983, Tmax = 0.990 | Rint = 0.030 |
| 18704 measured reflections |
| R[F2 > 2σ(F2)] = 0.046 | 218 parameters |
| wR(F2) = 0.143 | H-atom parameters constrained |
| S = 1.03 | Δρmax = 0.23 e Å−3 |
| 4126 reflections | Δρmin = −0.21 e Å−3 |
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 | ||
| C2 | 0.58609 (18) | 0.33276 (15) | 0.84198 (19) | 0.0553 (4) | |
| H2A | 0.6321 | 0.3161 | 0.9291 | 0.066* | |
| H2B | 0.6651 | 0.2989 | 0.7811 | 0.066* | |
| C3 | 0.41543 (16) | 0.26557 (14) | 0.84521 (15) | 0.0396 (3) | |
| H3 | 0.4205 | 0.2149 | 0.7730 | 0.047* | |
| C4 | 0.29028 (15) | 0.38426 (13) | 0.80439 (13) | 0.0347 (3) | |
| C5 | 0.22346 (17) | 0.44251 (15) | 0.92274 (14) | 0.0416 (3) | |
| H5A | 0.1512 | 0.3786 | 0.9785 | 0.050* | |
| H5B | 0.3170 | 0.4595 | 0.9742 | 0.050* | |
| C6 | 0.19789 (18) | 0.65300 (15) | 0.78280 (15) | 0.0437 (3) | |
| C7 | 0.1233 (2) | 0.77835 (17) | 0.7635 (2) | 0.0589 (5) | |
| H7 | 0.0357 | 0.7975 | 0.8203 | 0.071* | |
| C8 | 0.1789 (3) | 0.87321 (18) | 0.6611 (2) | 0.0681 (5) | |
| H8 | 0.1299 | 0.9574 | 0.6494 | 0.082* | |
| C9 | 0.3069 (3) | 0.84568 (17) | 0.5748 (2) | 0.0649 (5) | |
| H9 | 0.3438 | 0.9106 | 0.5049 | 0.078* | |
| C10 | 0.3803 (2) | 0.72004 (15) | 0.59337 (16) | 0.0496 (4) | |
| H10 | 0.4655 | 0.7010 | 0.5345 | 0.060* | |
| C11 | 0.32870 (17) | 0.62246 (13) | 0.69811 (14) | 0.0378 (3) | |
| C12 | 0.40618 (15) | 0.48584 (13) | 0.71947 (13) | 0.0342 (3) | |
| H12 | 0.4335 | 0.4590 | 0.6342 | 0.041* | |
| C13 | 0.36182 (15) | 0.17036 (13) | 0.96874 (14) | 0.0366 (3) | |
| C14 | 0.4024 (2) | 0.18592 (16) | 1.09382 (16) | 0.0493 (4) | |
| H14 | 0.4679 | 0.2571 | 1.1041 | 0.059* | |
| C15 | 0.3472 (2) | 0.09747 (18) | 1.20362 (17) | 0.0581 (4) | |
| H15 | 0.3762 | 0.1092 | 1.2872 | 0.070* | |
| C16 | 0.2497 (2) | −0.00770 (16) | 1.19071 (18) | 0.0549 (4) | |
| H16 | 0.2121 | −0.0669 | 1.2652 | 0.066* | |
| C17 | 0.2083 (2) | −0.02486 (16) | 1.06844 (19) | 0.0545 (4) | |
| H17 | 0.1417 | −0.0957 | 1.0590 | 0.065* | |
| C18 | 0.26509 (19) | 0.06275 (14) | 0.95821 (16) | 0.0457 (4) | |
| H18 | 0.2376 | 0.0491 | 0.8749 | 0.055* | |
| C19 | 0.70301 (18) | 0.53858 (16) | 0.72905 (17) | 0.0475 (4) | |
| H19A | 0.6792 | 0.6314 | 0.7017 | 0.071* | |
| H19B | 0.7314 | 0.4995 | 0.6528 | 0.071* | |
| H19C | 0.7958 | 0.5274 | 0.7866 | 0.071* | |
| C20 | 0.14592 (16) | 0.33900 (14) | 0.73480 (15) | 0.0402 (3) | |
| C21 | 0.0540 (3) | 0.2860 (3) | 0.5379 (2) | 0.0892 (8) | |
| H21A | 0.0932 | 0.2878 | 0.4480 | 0.134* | |
| H21B | −0.0460 | 0.3399 | 0.5394 | 0.134* | |
| H21C | 0.0293 | 0.1965 | 0.5790 | 0.134* | |
| N1 | 0.55638 (13) | 0.47446 (11) | 0.79846 (12) | 0.0380 (3) | |
| O1 | 0.13061 (13) | 0.56333 (11) | 0.88343 (11) | 0.0525 (3) | |
| O2 | 0.18247 (17) | 0.33696 (15) | 0.60870 (12) | 0.0735 (4) | |
| O3 | 0.01458 (14) | 0.30253 (14) | 0.78731 (13) | 0.0663 (4) |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| C2 | 0.0314 (7) | 0.0475 (9) | 0.0774 (12) | 0.0001 (6) | 0.0029 (7) | 0.0128 (8) |
| C3 | 0.0345 (6) | 0.0368 (7) | 0.0449 (8) | 0.0008 (5) | 0.0034 (5) | −0.0021 (6) |
| C4 | 0.0303 (6) | 0.0362 (7) | 0.0352 (7) | −0.0009 (5) | 0.0013 (5) | −0.0008 (5) |
| C5 | 0.0375 (7) | 0.0475 (8) | 0.0367 (7) | 0.0044 (6) | 0.0044 (5) | −0.0014 (6) |
| C6 | 0.0445 (7) | 0.0421 (8) | 0.0459 (8) | 0.0049 (6) | −0.0105 (6) | −0.0102 (6) |
| C7 | 0.0607 (10) | 0.0490 (9) | 0.0705 (12) | 0.0145 (8) | −0.0175 (8) | −0.0182 (8) |
| C8 | 0.0816 (13) | 0.0407 (9) | 0.0842 (14) | 0.0108 (8) | −0.0357 (11) | −0.0102 (9) |
| C9 | 0.0842 (13) | 0.0419 (9) | 0.0646 (11) | −0.0123 (8) | −0.0285 (10) | 0.0087 (8) |
| C10 | 0.0588 (9) | 0.0441 (8) | 0.0440 (8) | −0.0119 (7) | −0.0114 (7) | 0.0008 (6) |
| C11 | 0.0410 (7) | 0.0357 (7) | 0.0369 (7) | −0.0036 (5) | −0.0096 (5) | −0.0045 (5) |
| C12 | 0.0335 (6) | 0.0364 (7) | 0.0319 (7) | −0.0044 (5) | 0.0026 (5) | −0.0044 (5) |
| C13 | 0.0317 (6) | 0.0327 (6) | 0.0436 (8) | 0.0012 (5) | −0.0033 (5) | −0.0023 (5) |
| C14 | 0.0550 (9) | 0.0426 (8) | 0.0505 (9) | −0.0078 (6) | −0.0114 (7) | −0.0055 (7) |
| C15 | 0.0734 (11) | 0.0560 (10) | 0.0427 (9) | 0.0043 (8) | −0.0094 (8) | −0.0016 (7) |
| C16 | 0.0571 (9) | 0.0445 (9) | 0.0544 (10) | 0.0041 (7) | 0.0048 (7) | 0.0118 (7) |
| C17 | 0.0491 (8) | 0.0374 (8) | 0.0730 (12) | −0.0097 (6) | −0.0068 (8) | 0.0034 (7) |
| C18 | 0.0488 (8) | 0.0376 (7) | 0.0502 (9) | −0.0050 (6) | −0.0110 (6) | −0.0039 (6) |
| C19 | 0.0357 (7) | 0.0492 (8) | 0.0560 (9) | −0.0088 (6) | 0.0068 (6) | −0.0059 (7) |
| C20 | 0.0356 (6) | 0.0371 (7) | 0.0452 (8) | −0.0037 (5) | −0.0020 (6) | 0.0007 (6) |
| C21 | 0.0921 (15) | 0.122 (2) | 0.0567 (12) | −0.0647 (15) | −0.0106 (11) | −0.0160 (12) |
| N1 | 0.0288 (5) | 0.0415 (6) | 0.0416 (6) | −0.0025 (4) | 0.0015 (4) | −0.0022 (5) |
| O1 | 0.0496 (6) | 0.0525 (6) | 0.0521 (7) | 0.0144 (5) | 0.0101 (5) | −0.0058 (5) |
| O2 | 0.0680 (8) | 0.1103 (11) | 0.0448 (7) | −0.0518 (8) | 0.0016 (6) | −0.0162 (7) |
| O3 | 0.0368 (6) | 0.0932 (10) | 0.0680 (8) | −0.0181 (6) | 0.0043 (5) | −0.0116 (7) |
| C2—N1 | 1.4593 (19) | C11—C12 | 1.5020 (18) |
| C2—C3 | 1.532 (2) | C12—N1 | 1.4672 (17) |
| C2—H2A | 0.9700 | C12—H12 | 0.9800 |
| C2—H2B | 0.9700 | C13—C14 | 1.380 (2) |
| C3—C13 | 1.5083 (19) | C13—C18 | 1.382 (2) |
| C3—C4 | 1.5657 (17) | C14—C15 | 1.377 (2) |
| C3—H3 | 0.9800 | C14—H14 | 0.9300 |
| C4—C20 | 1.5058 (19) | C15—C16 | 1.371 (3) |
| C4—C5 | 1.5211 (19) | C15—H15 | 0.9300 |
| C4—C12 | 1.5298 (17) | C16—C17 | 1.358 (3) |
| C5—O1 | 1.4326 (16) | C16—H16 | 0.9300 |
| C5—H5A | 0.9700 | C17—C18 | 1.380 (2) |
| C5—H5B | 0.9700 | C17—H17 | 0.9300 |
| C6—O1 | 1.3542 (19) | C18—H18 | 0.9300 |
| C6—C7 | 1.389 (2) | C19—N1 | 1.4464 (17) |
| C6—C11 | 1.394 (2) | C19—H19A | 0.9600 |
| C7—C8 | 1.364 (3) | C19—H19B | 0.9600 |
| C7—H7 | 0.9300 | C19—H19C | 0.9600 |
| C8—C9 | 1.379 (3) | C20—O3 | 1.1901 (17) |
| C8—H8 | 0.9300 | C20—O2 | 1.3215 (19) |
| C9—C10 | 1.388 (2) | C21—O2 | 1.442 (2) |
| C9—H9 | 0.9300 | C21—H21A | 0.9600 |
| C10—C11 | 1.386 (2) | C21—H21B | 0.9600 |
| C10—H10 | 0.9300 | C21—H21C | 0.9600 |
| N1—C2—C3 | 106.72 (11) | N1—C12—C4 | 101.59 (10) |
| N1—C2—H2A | 110.4 | C11—C12—C4 | 111.76 (10) |
| C3—C2—H2A | 110.4 | N1—C12—H12 | 110.0 |
| N1—C2—H2B | 110.4 | C11—C12—H12 | 110.0 |
| C3—C2—H2B | 110.4 | C4—C12—H12 | 110.0 |
| H2A—C2—H2B | 108.6 | C14—C13—C18 | 117.52 (13) |
| C13—C3—C2 | 118.02 (13) | C14—C13—C3 | 123.24 (13) |
| C13—C3—C4 | 114.69 (10) | C18—C13—C3 | 119.23 (13) |
| C2—C3—C4 | 103.54 (11) | C15—C14—C13 | 120.87 (15) |
| C13—C3—H3 | 106.6 | C15—C14—H14 | 119.6 |
| C2—C3—H3 | 106.6 | C13—C14—H14 | 119.6 |
| C4—C3—H3 | 106.6 | C16—C15—C14 | 120.52 (16) |
| C20—C4—C5 | 109.80 (11) | C16—C15—H15 | 119.7 |
| C20—C4—C12 | 115.64 (11) | C14—C15—H15 | 119.7 |
| C5—C4—C12 | 108.18 (11) | C17—C16—C15 | 119.55 (15) |
| C20—C4—C3 | 109.63 (11) | C17—C16—H16 | 120.2 |
| C5—C4—C3 | 112.03 (11) | C15—C16—H16 | 120.2 |
| C12—C4—C3 | 101.36 (10) | C16—C17—C18 | 120.03 (15) |
| O1—C5—C4 | 111.89 (11) | C16—C17—H17 | 120.0 |
| O1—C5—H5A | 109.2 | C18—C17—H17 | 120.0 |
| C4—C5—H5A | 109.2 | C17—C18—C13 | 121.50 (15) |
| O1—C5—H5B | 109.2 | C17—C18—H18 | 119.3 |
| C4—C5—H5B | 109.2 | C13—C18—H18 | 119.3 |
| H5A—C5—H5B | 107.9 | N1—C19—H19A | 109.5 |
| O1—C6—C7 | 115.99 (14) | N1—C19—H19B | 109.5 |
| O1—C6—C11 | 123.19 (12) | H19A—C19—H19B | 109.5 |
| C7—C6—C11 | 120.76 (15) | N1—C19—H19C | 109.5 |
| C8—C7—C6 | 119.85 (17) | H19A—C19—H19C | 109.5 |
| C8—C7—H7 | 120.1 | H19B—C19—H19C | 109.5 |
| C6—C7—H7 | 120.1 | O3—C20—O2 | 122.50 (14) |
| C7—C8—C9 | 120.78 (16) | O3—C20—C4 | 124.50 (14) |
| C7—C8—H8 | 119.6 | O2—C20—C4 | 112.91 (11) |
| C9—C8—H8 | 119.6 | O2—C21—H21A | 109.5 |
| C8—C9—C10 | 119.33 (17) | O2—C21—H21B | 109.5 |
| C8—C9—H9 | 120.3 | H21A—C21—H21B | 109.5 |
| C10—C9—H9 | 120.3 | O2—C21—H21C | 109.5 |
| C11—C10—C9 | 121.17 (17) | H21A—C21—H21C | 109.5 |
| C11—C10—H10 | 119.4 | H21B—C21—H21C | 109.5 |
| C9—C10—H10 | 119.4 | C19—N1—C2 | 111.63 (11) |
| C10—C11—C6 | 118.09 (14) | C19—N1—C12 | 114.08 (11) |
| C10—C11—C12 | 121.91 (13) | C2—N1—C12 | 105.98 (11) |
| C6—C11—C12 | 119.97 (12) | C6—O1—C5 | 117.33 (11) |
| N1—C12—C11 | 113.14 (11) | C20—O2—C21 | 115.98 (14) |
| N1—C2—C3—C13 | −129.88 (13) | C3—C4—C12—C11 | −164.30 (11) |
| N1—C2—C3—C4 | −1.93 (17) | C2—C3—C13—C14 | 33.72 (19) |
| C13—C3—C4—C20 | −79.76 (15) | C4—C3—C13—C14 | −88.74 (16) |
| C2—C3—C4—C20 | 150.25 (13) | C2—C3—C13—C18 | −147.30 (14) |
| C13—C3—C4—C5 | 42.41 (16) | C4—C3—C13—C18 | 90.25 (16) |
| C2—C3—C4—C5 | −87.58 (14) | C18—C13—C14—C15 | −0.4 (2) |
| C13—C3—C4—C12 | 157.53 (12) | C3—C13—C14—C15 | 178.62 (14) |
| C2—C3—C4—C12 | 27.54 (14) | C13—C14—C15—C16 | −0.4 (3) |
| C20—C4—C5—O1 | −67.14 (15) | C14—C15—C16—C17 | 0.4 (3) |
| C12—C4—C5—O1 | 59.90 (14) | C15—C16—C17—C18 | 0.4 (3) |
| C3—C4—C5—O1 | 170.79 (11) | C16—C17—C18—C13 | −1.1 (2) |
| O1—C6—C7—C8 | −177.44 (15) | C14—C13—C18—C17 | 1.1 (2) |
| C11—C6—C7—C8 | −0.4 (2) | C3—C13—C18—C17 | −177.91 (13) |
| C6—C7—C8—C9 | 1.0 (3) | C5—C4—C20—O3 | −28.52 (19) |
| C7—C8—C9—C10 | −0.4 (3) | C12—C4—C20—O3 | −151.25 (15) |
| C8—C9—C10—C11 | −0.9 (3) | C3—C4—C20—O3 | 94.97 (17) |
| C9—C10—C11—C6 | 1.6 (2) | C5—C4—C20—O2 | 154.86 (13) |
| C9—C10—C11—C12 | 179.79 (14) | C12—C4—C20—O2 | 32.13 (17) |
| O1—C6—C11—C10 | 175.95 (13) | C3—C4—C20—O2 | −81.65 (15) |
| C7—C6—C11—C10 | −0.9 (2) | C3—C2—N1—C19 | −150.89 (14) |
| O1—C6—C11—C12 | −2.3 (2) | C3—C2—N1—C12 | −26.14 (16) |
| C7—C6—C11—C12 | −179.18 (13) | C11—C12—N1—C19 | −72.87 (15) |
| C10—C11—C12—N1 | 87.51 (16) | C4—C12—N1—C19 | 167.17 (11) |
| C6—C11—C12—N1 | −94.28 (15) | C11—C12—N1—C2 | 163.91 (12) |
| C10—C11—C12—C4 | −158.54 (13) | C4—C12—N1—C2 | 43.96 (13) |
| C6—C11—C12—C4 | 19.67 (18) | C7—C6—O1—C5 | −168.00 (14) |
| C20—C4—C12—N1 | −161.84 (11) | C11—C6—O1—C5 | 15.0 (2) |
| C5—C4—C12—N1 | 74.57 (12) | C4—C5—O1—C6 | −44.61 (17) |
| C3—C4—C12—N1 | −43.38 (12) | O3—C20—O2—C21 | −0.8 (3) |
| C20—C4—C12—C11 | 77.23 (14) | C4—C20—O2—C21 | 175.94 (17) |
| C5—C4—C12—C11 | −46.35 (14) |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C5—H5B···N1 | 0.97 | 2.55 | 2.887 (2) | 100 |
| C12—H12···O2 | 0.98 | 2.43 | 2.781 (2) | 101 |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C5—H5B···N1 | 0.97 | 2.55 | 2.887 (2) | 100 |
| C12—H12···O2 | 0.98 | 2.43 | 2.781 (2) | 101 |
SN thanks Professor M. N. Ponnuswamy, Department of Crystallography and Biophysics, University of Madras, India, for his guidance and valuable suggestions. SN thanks SRM management, India, for their support.
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Chromenopyrrole compounds are used in the treatment of impulsive disorders (Caine, 1993), aggressiveness (Tidey, 1992), parkinson's disease (Carlson, 1993), psychoses, memory disorders (Sokoloff et al., 1990), anxiety and depression (Wilner, 1985). Pyrroles are also very useful precursors in porphyrin synthesis (Sobral & Rocha Gonsalves, 2001a, Sobral & Rocha Gonsalves, 2001b), and as monomers for polymer chemistry (Brockmann & Tour, 1995), with applications ranging from non – linear optical materials (Suslick et al., 1992) to electronic noses (Di Natale et al., 1998).
The bond lengths, bond angles and torsion angles of the title compound are comparable with the similar structure solved earlier (Nirmala et al., 2008). The sum of bond angles around atom N1(331.7°) is in accordance with sp3 hybridization. The aromatic six-membered rings are oriented at an angle of 72.9 (5)° with respect to each other. The six-membered heterocyclic ring of the chromenopyrrole moiety adopts a half-chair conformation with puckering parameters of q2 = 0.357 (1) Å, q3 = -0.314 (1) Å and φ= -157.9 (2)° (Cremer and Pople, 1975). Atom C4 deviates by 0.631 Å from the least – square plane through the remaining five atoms. The pyrrolidine ring adopts an envelope conformation with puckering parameters of q2 = 0.438 (1) Å and φ = -39.8 (2)° (Cremer and Pople, 1975). Atom C12 deviates by 0.659 (4) Å from the least – square plane through the remaining four atoms.
No significant intermolecular π–π interactions are observed between two phenyl rings. Their centroids are separated by 3.9165 (1) Å. The molecular conformation is stabilized C— H···O and C— H···N interactions.