organic compounds
1′-Methyl-4′-(4-methylphenyl)dispiro[1-benzopyran-3(4H),3′-pyrrolidine-2′,3′′-indoline]-2,2′′-dione
aDepartment of Physics, C. Abdul Hakeem College of Engineering & Technology, Melvisharam, Vellore 632 509, India, bDepartment of Physics, Thanthai Periyar Government Institute of Technology, Vellore 632 002, India, and cDepartment of Organic Chemistry, University of Madras, Maraimalai Campus, Chennai 600 025, India
*Correspondence e-mail: smurugavel27@gmail.com
In the title compound, C27H24N2O3, the pyrroldine ring adopts a twist conformation, while the six-membered pyranone ring of the coumarin ring system is in a sofa conformation. In the crystal, pairs of N—H⋯O hydrogen bonds link the molecules into inversion R22(8) dimers. These dimers are further connected via C—H⋯O hydrogen bonds.
Related literature
For applications of pyrrolidine derivatives, see: Huryn et al. (1991); Suzuki et al. (1994); Waldmann (1995). For ring puckering parameters, see: Cremer & Pople (1975) and for asymmetry parameters, see: Duax et al. (1976). For closely related pyrrolidine structures, see: Selvanayagam et al. (2011); Ali et al. (2010). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and 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: SHELXL97 and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811051440/bt5735sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811051440/bt5735Isup2.hkl
A mixture of E-3-(4-methylbenzylidene)chroman-2-one (0.125 g, 0.5 mmol), isatin (0.08 g, 0.55 mmol) and N- methylglycine (0.025 g, 0.55 mmol) in toluene (5 ml) as solvent was allowed to reflux for 6 hours. After work up, the crude mass was purified by
to yield the pure product (0.195 g, 92% yield). The compound was recrystallized from ethyl acetate solvent. Single crystals suitable for X-ray diffraction were obtained by slow evaporation of a ethylacetate solution at room temperature.H atoms were positioned geometrically, with N—H = 0.86 Å and and C—H = 0.93–0.98 Å and constrained to ride on their parent atom, with Uiso(H)=1.5Ueq for methyl H atoms and 1.2Ueq(C) for other H atoms.
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and 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: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).C27H24N2O3 | F(000) = 896 |
Mr = 424.48 | Dx = 1.293 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 7063 reflections |
a = 10.4543 (3) Å | θ = 2.0–31.2° |
b = 14.6018 (4) Å | µ = 0.09 mm−1 |
c = 14.7266 (4) Å | T = 293 K |
β = 104.043 (2)° | Block, colourless |
V = 2180.85 (10) Å3 | 0.26 × 0.23 × 0.18 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 7055 independent reflections |
Radiation source: fine-focus sealed tube | 4544 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.031 |
Detector resolution: 10.0 pixels mm-1 | θmax = 31.2°, θmin = 2.0° |
ω scans | h = −15→14 |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | k = −21→21 |
Tmin = 0.978, Tmax = 0.985 | l = −20→21 |
30221 measured reflections |
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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.153 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0694P)2 + 0.398P] where P = (Fo2 + 2Fc2)/3 |
7055 reflections | (Δ/σ)max < 0.001 |
291 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
C27H24N2O3 | V = 2180.85 (10) Å3 |
Mr = 424.48 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 10.4543 (3) Å | µ = 0.09 mm−1 |
b = 14.6018 (4) Å | T = 293 K |
c = 14.7266 (4) Å | 0.26 × 0.23 × 0.18 mm |
β = 104.043 (2)° |
Bruker APEXII CCD diffractometer | 7055 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 4544 reflections with I > 2σ(I) |
Tmin = 0.978, Tmax = 0.985 | Rint = 0.031 |
30221 measured reflections |
R[F2 > 2σ(F2)] = 0.050 | 0 restraints |
wR(F2) = 0.153 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.31 e Å−3 |
7055 reflections | Δρmin = −0.23 e Å−3 |
291 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | 0.80511 (12) | 0.84780 (8) | 0.09959 (8) | 0.0326 (2) | |
C2 | 0.80733 (12) | 0.86879 (8) | 0.20643 (8) | 0.0335 (2) | |
C3 | 0.65980 (12) | 0.89026 (9) | 0.20385 (9) | 0.0367 (3) | |
H3 | 0.6207 | 0.8333 | 0.2197 | 0.044* | |
C4 | 0.59877 (13) | 0.90885 (11) | 0.10112 (10) | 0.0449 (3) | |
H4A | 0.5042 | 0.8989 | 0.0858 | 0.054* | |
H4B | 0.6166 | 0.9709 | 0.0841 | 0.054* | |
C5 | 0.63008 (17) | 0.84632 (12) | −0.04637 (10) | 0.0548 (4) | |
H5A | 0.5385 | 0.8313 | −0.0695 | 0.082* | |
H5B | 0.6830 | 0.8033 | −0.0705 | 0.082* | |
H5C | 0.6459 | 0.9070 | −0.0662 | 0.082* | |
C6 | 0.87724 (13) | 0.92422 (9) | 0.05686 (9) | 0.0383 (3) | |
C7 | 0.97873 (13) | 0.79028 (9) | 0.03856 (9) | 0.0382 (3) | |
C8 | 1.06331 (16) | 0.72827 (11) | 0.01407 (11) | 0.0528 (4) | |
H8 | 1.1311 | 0.7470 | −0.0125 | 0.063* | |
C9 | 1.04343 (19) | 0.63686 (12) | 0.03057 (13) | 0.0626 (5) | |
H9 | 1.1002 | 0.5932 | 0.0161 | 0.075* | |
C10 | 0.94146 (19) | 0.60908 (10) | 0.06787 (12) | 0.0586 (4) | |
H10 | 0.9291 | 0.5469 | 0.0767 | 0.070* | |
C11 | 0.85666 (16) | 0.67219 (9) | 0.09259 (10) | 0.0455 (3) | |
H11 | 0.7871 | 0.6532 | 0.1172 | 0.055* | |
C12 | 0.87840 (13) | 0.76409 (8) | 0.07963 (8) | 0.0348 (3) | |
C13 | 0.90158 (13) | 0.94596 (10) | 0.25105 (10) | 0.0450 (3) | |
H13A | 0.8788 | 1.0018 | 0.2152 | 0.054* | |
H13B | 0.8931 | 0.9573 | 0.3142 | 0.054* | |
C14 | 1.04058 (14) | 0.91967 (12) | 0.25330 (11) | 0.0520 (4) | |
C15 | 1.13597 (18) | 0.97997 (16) | 0.23772 (14) | 0.0717 (6) | |
H15 | 1.1152 | 1.0414 | 0.2254 | 0.086* | |
C16 | 1.2617 (2) | 0.9486 (2) | 0.24059 (18) | 0.0957 (8) | |
H16 | 1.3259 | 0.9893 | 0.2313 | 0.115* | |
C17 | 1.2920 (2) | 0.8584 (2) | 0.2570 (2) | 0.1000 (9) | |
H17 | 1.3766 | 0.8380 | 0.2578 | 0.120* | |
C18 | 1.19962 (18) | 0.79673 (18) | 0.27257 (14) | 0.0791 (6) | |
H18 | 1.2205 | 0.7352 | 0.2840 | 0.095* | |
C19 | 1.07479 (14) | 0.82966 (13) | 0.27055 (10) | 0.0544 (4) | |
C20 | 0.85238 (14) | 0.78283 (10) | 0.26401 (9) | 0.0418 (3) | |
C21 | 0.63774 (12) | 0.96203 (9) | 0.27238 (10) | 0.0395 (3) | |
C22 | 0.64635 (16) | 0.93919 (11) | 0.36474 (11) | 0.0509 (4) | |
H22 | 0.6657 | 0.8791 | 0.3843 | 0.061* | |
C23 | 0.62671 (17) | 1.00382 (13) | 0.42869 (12) | 0.0584 (4) | |
H23 | 0.6352 | 0.9864 | 0.4906 | 0.070* | |
C24 | 0.59504 (15) | 1.09288 (12) | 0.40314 (13) | 0.0560 (4) | |
C25 | 0.5856 (2) | 1.11562 (12) | 0.31114 (15) | 0.0677 (5) | |
H25 | 0.5637 | 1.1754 | 0.2915 | 0.081* | |
C26 | 0.60777 (18) | 1.05209 (11) | 0.24708 (12) | 0.0576 (4) | |
H26 | 0.6024 | 1.0703 | 0.1858 | 0.069* | |
C27 | 0.5729 (2) | 1.16348 (15) | 0.47218 (17) | 0.0806 (6) | |
H27A | 0.6150 | 1.2198 | 0.4624 | 0.121* | |
H27B | 0.6095 | 1.1420 | 0.5347 | 0.121* | |
H27C | 0.4800 | 1.1737 | 0.4635 | 0.121* | |
N1 | 0.66462 (11) | 0.84226 (8) | 0.05524 (8) | 0.0395 (2) | |
N2 | 0.97478 (11) | 0.88502 (8) | 0.02528 (8) | 0.0430 (3) | |
H2 | 1.0282 | 0.9148 | 0.0000 | 0.052* | |
O1 | 0.84748 (11) | 1.00547 (6) | 0.05046 (8) | 0.0525 (3) | |
O2 | 0.98473 (10) | 0.76670 (8) | 0.29036 (7) | 0.0546 (3) | |
O3 | 0.78215 (12) | 0.72821 (8) | 0.28723 (8) | 0.0607 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0345 (6) | 0.0302 (6) | 0.0358 (6) | −0.0025 (4) | 0.0135 (5) | 0.0040 (4) |
C2 | 0.0307 (6) | 0.0370 (6) | 0.0351 (6) | −0.0028 (5) | 0.0122 (5) | 0.0013 (5) |
C3 | 0.0304 (6) | 0.0405 (6) | 0.0426 (7) | −0.0013 (5) | 0.0154 (5) | 0.0039 (5) |
C4 | 0.0343 (6) | 0.0549 (8) | 0.0459 (7) | 0.0033 (6) | 0.0108 (6) | 0.0029 (6) |
C5 | 0.0553 (9) | 0.0659 (10) | 0.0397 (7) | 0.0022 (7) | 0.0051 (6) | 0.0038 (7) |
C6 | 0.0412 (7) | 0.0345 (6) | 0.0434 (7) | −0.0018 (5) | 0.0184 (5) | 0.0055 (5) |
C7 | 0.0409 (7) | 0.0403 (7) | 0.0343 (6) | 0.0031 (5) | 0.0110 (5) | −0.0006 (5) |
C8 | 0.0489 (8) | 0.0610 (10) | 0.0504 (8) | 0.0121 (7) | 0.0157 (7) | −0.0087 (7) |
C9 | 0.0666 (11) | 0.0519 (9) | 0.0654 (10) | 0.0217 (8) | 0.0080 (9) | −0.0158 (8) |
C10 | 0.0752 (11) | 0.0342 (7) | 0.0583 (9) | 0.0090 (7) | 0.0007 (8) | −0.0044 (6) |
C11 | 0.0564 (8) | 0.0341 (6) | 0.0432 (7) | −0.0043 (6) | 0.0066 (6) | 0.0020 (5) |
C12 | 0.0406 (6) | 0.0319 (6) | 0.0315 (6) | 0.0005 (5) | 0.0079 (5) | 0.0013 (4) |
C13 | 0.0368 (7) | 0.0510 (8) | 0.0505 (8) | −0.0090 (6) | 0.0172 (6) | −0.0151 (6) |
C14 | 0.0345 (7) | 0.0732 (10) | 0.0499 (8) | −0.0107 (7) | 0.0131 (6) | −0.0233 (7) |
C15 | 0.0484 (9) | 0.0934 (14) | 0.0787 (12) | −0.0280 (9) | 0.0260 (9) | −0.0347 (10) |
C16 | 0.0436 (10) | 0.144 (2) | 0.1069 (18) | −0.0334 (13) | 0.0318 (11) | −0.0466 (17) |
C17 | 0.0351 (9) | 0.155 (3) | 0.1101 (19) | −0.0022 (13) | 0.0174 (10) | −0.0376 (18) |
C18 | 0.0427 (9) | 0.1165 (17) | 0.0735 (12) | 0.0177 (10) | 0.0055 (8) | −0.0151 (12) |
C19 | 0.0348 (7) | 0.0841 (12) | 0.0422 (8) | 0.0019 (7) | 0.0050 (6) | −0.0116 (7) |
C20 | 0.0441 (7) | 0.0485 (8) | 0.0344 (6) | 0.0056 (6) | 0.0126 (5) | 0.0054 (5) |
C21 | 0.0312 (6) | 0.0437 (7) | 0.0471 (7) | 0.0024 (5) | 0.0159 (5) | 0.0019 (5) |
C22 | 0.0566 (9) | 0.0508 (8) | 0.0516 (8) | 0.0114 (7) | 0.0253 (7) | 0.0060 (6) |
C23 | 0.0592 (10) | 0.0708 (11) | 0.0512 (9) | 0.0109 (8) | 0.0248 (8) | −0.0019 (8) |
C24 | 0.0411 (8) | 0.0614 (10) | 0.0685 (10) | 0.0054 (7) | 0.0190 (7) | −0.0145 (8) |
C25 | 0.0757 (12) | 0.0464 (9) | 0.0819 (13) | 0.0145 (8) | 0.0208 (10) | −0.0001 (8) |
C26 | 0.0701 (11) | 0.0485 (9) | 0.0561 (9) | 0.0107 (7) | 0.0189 (8) | 0.0069 (7) |
C27 | 0.0697 (12) | 0.0794 (14) | 0.0981 (16) | 0.0079 (10) | 0.0307 (11) | −0.0328 (11) |
N1 | 0.0348 (5) | 0.0465 (6) | 0.0364 (5) | −0.0024 (4) | 0.0073 (4) | 0.0027 (4) |
N2 | 0.0459 (6) | 0.0404 (6) | 0.0509 (7) | −0.0014 (5) | 0.0274 (5) | 0.0064 (5) |
O1 | 0.0583 (6) | 0.0341 (5) | 0.0744 (7) | 0.0032 (4) | 0.0344 (5) | 0.0138 (5) |
O2 | 0.0464 (6) | 0.0712 (7) | 0.0436 (5) | 0.0159 (5) | 0.0056 (4) | 0.0086 (5) |
O3 | 0.0682 (7) | 0.0571 (7) | 0.0645 (7) | 0.0054 (5) | 0.0314 (6) | 0.0256 (5) |
C1—N1 | 1.4577 (16) | C13—H13A | 0.9700 |
C1—C12 | 1.5089 (17) | C13—H13B | 0.9700 |
C1—C6 | 1.5621 (16) | C14—C19 | 1.370 (3) |
C1—C2 | 1.5975 (17) | C14—C15 | 1.391 (2) |
C2—C20 | 1.5240 (18) | C15—C16 | 1.383 (3) |
C2—C13 | 1.5356 (18) | C15—H15 | 0.9300 |
C2—C3 | 1.5652 (17) | C16—C17 | 1.363 (4) |
C3—C21 | 1.5110 (18) | C16—H16 | 0.9300 |
C3—C4 | 1.5169 (19) | C17—C18 | 1.380 (4) |
C3—H3 | 0.9800 | C17—H17 | 0.9300 |
C4—N1 | 1.4497 (18) | C18—C19 | 1.384 (2) |
C4—H4A | 0.9700 | C18—H18 | 0.9300 |
C4—H4B | 0.9700 | C19—O2 | 1.396 (2) |
C5—N1 | 1.4529 (18) | C20—O3 | 1.1892 (17) |
C5—H5A | 0.9600 | C20—O2 | 1.3637 (17) |
C5—H5B | 0.9600 | C21—C26 | 1.382 (2) |
C5—H5C | 0.9600 | C21—C22 | 1.382 (2) |
C6—O1 | 1.2243 (16) | C22—C23 | 1.383 (2) |
C6—N2 | 1.3467 (17) | C22—H22 | 0.9300 |
C7—C8 | 1.3736 (19) | C23—C24 | 1.372 (2) |
C7—C12 | 1.3857 (18) | C23—H23 | 0.9300 |
C7—N2 | 1.3964 (18) | C24—C25 | 1.375 (3) |
C8—C9 | 1.381 (2) | C24—C27 | 1.505 (2) |
C8—H8 | 0.9300 | C25—C26 | 1.382 (2) |
C9—C10 | 1.374 (3) | C25—H25 | 0.9300 |
C9—H9 | 0.9300 | C26—H26 | 0.9300 |
C10—C11 | 1.387 (2) | C27—H27A | 0.9600 |
C10—H10 | 0.9300 | C27—H27B | 0.9600 |
C11—C12 | 1.3820 (18) | C27—H27C | 0.9600 |
C11—H11 | 0.9300 | N2—H2 | 0.8600 |
C13—C14 | 1.496 (2) | ||
N1—C1—C12 | 111.83 (10) | C2—C13—H13B | 109.7 |
N1—C1—C6 | 113.05 (10) | H13A—C13—H13B | 108.2 |
C12—C1—C6 | 100.52 (9) | C19—C14—C15 | 118.22 (16) |
N1—C1—C2 | 102.96 (9) | C19—C14—C13 | 117.33 (14) |
C12—C1—C2 | 117.43 (10) | C15—C14—C13 | 124.44 (17) |
C6—C1—C2 | 111.50 (10) | C16—C15—C14 | 120.0 (2) |
C20—C2—C13 | 106.66 (11) | C16—C15—H15 | 120.0 |
C20—C2—C3 | 110.37 (10) | C14—C15—H15 | 120.0 |
C13—C2—C3 | 112.93 (10) | C17—C16—C15 | 120.2 (2) |
C20—C2—C1 | 108.58 (10) | C17—C16—H16 | 119.9 |
C13—C2—C1 | 114.63 (10) | C15—C16—H16 | 119.9 |
C3—C2—C1 | 103.64 (9) | C16—C17—C18 | 121.2 (2) |
C21—C3—C4 | 116.52 (11) | C16—C17—H17 | 119.4 |
C21—C3—C2 | 115.59 (10) | C18—C17—H17 | 119.4 |
C4—C3—C2 | 103.51 (10) | C17—C18—C19 | 117.7 (2) |
C21—C3—H3 | 106.9 | C17—C18—H18 | 121.2 |
C4—C3—H3 | 106.9 | C19—C18—H18 | 121.2 |
C2—C3—H3 | 106.9 | C14—C19—C18 | 122.66 (18) |
N1—C4—C3 | 102.26 (11) | C14—C19—O2 | 120.77 (13) |
N1—C4—H4A | 111.3 | C18—C19—O2 | 116.53 (18) |
C3—C4—H4A | 111.3 | O3—C20—O2 | 117.19 (13) |
N1—C4—H4B | 111.3 | O3—C20—C2 | 125.69 (13) |
C3—C4—H4B | 111.3 | O2—C20—C2 | 117.12 (12) |
H4A—C4—H4B | 109.2 | C26—C21—C22 | 116.83 (14) |
N1—C5—H5A | 109.5 | C26—C21—C3 | 122.78 (13) |
N1—C5—H5B | 109.5 | C22—C21—C3 | 120.39 (12) |
H5A—C5—H5B | 109.5 | C21—C22—C23 | 121.36 (15) |
N1—C5—H5C | 109.5 | C21—C22—H22 | 119.3 |
H5A—C5—H5C | 109.5 | C23—C22—H22 | 119.3 |
H5B—C5—H5C | 109.5 | C24—C23—C22 | 121.72 (16) |
O1—C6—N2 | 125.79 (12) | C24—C23—H23 | 119.1 |
O1—C6—C1 | 125.78 (11) | C22—C23—H23 | 119.1 |
N2—C6—C1 | 108.39 (11) | C23—C24—C25 | 117.01 (15) |
C8—C7—C12 | 122.44 (13) | C23—C24—C27 | 122.04 (18) |
C8—C7—N2 | 127.98 (13) | C25—C24—C27 | 120.95 (18) |
C12—C7—N2 | 109.56 (11) | C24—C25—C26 | 121.77 (16) |
C7—C8—C9 | 117.18 (16) | C24—C25—H25 | 119.1 |
C7—C8—H8 | 121.4 | C26—C25—H25 | 119.1 |
C9—C8—H8 | 121.4 | C21—C26—C25 | 121.29 (16) |
C10—C9—C8 | 121.34 (15) | C21—C26—H26 | 119.4 |
C10—C9—H9 | 119.3 | C25—C26—H26 | 119.4 |
C8—C9—H9 | 119.3 | C24—C27—H27A | 109.5 |
C9—C10—C11 | 121.08 (15) | C24—C27—H27B | 109.5 |
C9—C10—H10 | 119.5 | H27A—C27—H27B | 109.5 |
C11—C10—H10 | 119.5 | C24—C27—H27C | 109.5 |
C12—C11—C10 | 118.15 (15) | H27A—C27—H27C | 109.5 |
C12—C11—H11 | 120.9 | H27B—C27—H27C | 109.5 |
C10—C11—H11 | 120.9 | C4—N1—C5 | 115.16 (11) |
C11—C12—C7 | 119.70 (12) | C4—N1—C1 | 107.14 (10) |
C11—C12—C1 | 130.64 (12) | C5—N1—C1 | 115.52 (11) |
C7—C12—C1 | 109.60 (10) | C6—N2—C7 | 111.83 (11) |
C14—C13—C2 | 109.89 (12) | C6—N2—H2 | 124.1 |
C14—C13—H13A | 109.7 | C7—N2—H2 | 124.1 |
C2—C13—H13A | 109.7 | C20—O2—C19 | 121.05 (12) |
C14—C13—H13B | 109.7 | ||
N1—C1—C2—C20 | 107.25 (11) | C13—C14—C15—C16 | −179.46 (17) |
C12—C1—C2—C20 | −16.07 (14) | C14—C15—C16—C17 | 1.2 (3) |
C6—C1—C2—C20 | −131.25 (11) | C15—C16—C17—C18 | −1.0 (4) |
N1—C1—C2—C13 | −133.62 (11) | C16—C17—C18—C19 | 0.2 (4) |
C12—C1—C2—C13 | 103.06 (13) | C15—C14—C19—C18 | −0.3 (2) |
C6—C1—C2—C13 | −12.12 (15) | C13—C14—C19—C18 | 178.73 (15) |
N1—C1—C2—C3 | −10.10 (11) | C15—C14—C19—O2 | 177.45 (14) |
C12—C1—C2—C3 | −133.42 (11) | C13—C14—C19—O2 | −3.5 (2) |
C6—C1—C2—C3 | 111.40 (11) | C17—C18—C19—C14 | 0.5 (3) |
C20—C2—C3—C21 | 98.57 (13) | C17—C18—C19—O2 | −177.40 (18) |
C13—C2—C3—C21 | −20.72 (15) | C13—C2—C20—O3 | 138.05 (15) |
C1—C2—C3—C21 | −145.34 (11) | C3—C2—C20—O3 | 15.04 (19) |
C20—C2—C3—C4 | −132.81 (11) | C1—C2—C20—O3 | −97.92 (16) |
C13—C2—C3—C4 | 107.91 (13) | C13—C2—C20—O2 | −42.67 (15) |
C1—C2—C3—C4 | −16.72 (12) | C3—C2—C20—O2 | −165.68 (11) |
C21—C3—C4—N1 | 166.01 (10) | C1—C2—C20—O2 | 81.35 (14) |
C2—C3—C4—N1 | 37.96 (13) | C4—C3—C21—C26 | −22.73 (19) |
N1—C1—C6—O1 | 55.83 (18) | C2—C3—C21—C26 | 99.17 (16) |
C12—C1—C6—O1 | 175.18 (14) | C4—C3—C21—C22 | 156.91 (13) |
C2—C1—C6—O1 | −59.61 (18) | C2—C3—C21—C22 | −81.19 (16) |
N1—C1—C6—N2 | −122.03 (12) | C26—C21—C22—C23 | −0.4 (2) |
C12—C1—C6—N2 | −2.69 (13) | C3—C21—C22—C23 | 179.90 (14) |
C2—C1—C6—N2 | 122.52 (12) | C21—C22—C23—C24 | 1.4 (3) |
C12—C7—C8—C9 | 1.1 (2) | C22—C23—C24—C25 | −1.0 (3) |
N2—C7—C8—C9 | −176.91 (14) | C22—C23—C24—C27 | 179.71 (17) |
C7—C8—C9—C10 | 1.5 (2) | C23—C24—C25—C26 | −0.4 (3) |
C8—C9—C10—C11 | −1.7 (3) | C27—C24—C25—C26 | 178.90 (18) |
C9—C10—C11—C12 | −0.7 (2) | C22—C21—C26—C25 | −1.0 (2) |
C10—C11—C12—C7 | 3.2 (2) | C3—C21—C26—C25 | 178.70 (15) |
C10—C11—C12—C1 | −179.77 (13) | C24—C25—C26—C21 | 1.4 (3) |
C8—C7—C12—C11 | −3.5 (2) | C3—C4—N1—C5 | −177.27 (12) |
N2—C7—C12—C11 | 174.86 (12) | C3—C4—N1—C1 | −47.26 (13) |
C8—C7—C12—C1 | 178.92 (13) | C12—C1—N1—C4 | 162.40 (10) |
N2—C7—C12—C1 | −2.76 (14) | C6—C1—N1—C4 | −85.00 (12) |
N1—C1—C12—C11 | −53.82 (18) | C2—C1—N1—C4 | 35.44 (12) |
C6—C1—C12—C11 | −174.04 (13) | C12—C1—N1—C5 | −67.79 (14) |
C2—C1—C12—C11 | 64.87 (18) | C6—C1—N1—C5 | 44.80 (15) |
N1—C1—C12—C7 | 123.46 (11) | C2—C1—N1—C5 | 165.25 (11) |
C6—C1—C12—C7 | 3.23 (13) | O1—C6—N2—C7 | −176.60 (14) |
C2—C1—C12—C7 | −117.86 (11) | C1—C6—N2—C7 | 1.27 (15) |
C20—C2—C13—C14 | 57.15 (15) | C8—C7—N2—C6 | 179.11 (14) |
C3—C2—C13—C14 | 178.55 (11) | C12—C7—N2—C6 | 0.90 (16) |
C1—C2—C13—C14 | −63.05 (16) | O3—C20—O2—C19 | −176.49 (13) |
C2—C13—C14—C19 | −36.75 (18) | C2—C20—O2—C19 | 4.17 (18) |
C2—C13—C14—C15 | 142.23 (15) | C14—C19—O2—C20 | 21.8 (2) |
C19—C14—C15—C16 | −0.5 (3) | C18—C19—O2—C20 | −160.33 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1i | 0.86 | 2.02 | 2.874 (1) | 174 |
C5—H5B···O3ii | 0.96 | 2.59 | 3.407 (2) | 143 |
Symmetry codes: (i) −x+2, −y+2, −z; (ii) x, −y+3/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C27H24N2O3 |
Mr | 424.48 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 10.4543 (3), 14.6018 (4), 14.7266 (4) |
β (°) | 104.043 (2) |
V (Å3) | 2180.85 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.26 × 0.23 × 0.18 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.978, 0.985 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 30221, 7055, 4544 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.728 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.153, 1.02 |
No. of reflections | 7055 |
No. of parameters | 291 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.23 |
Computer programs: APEX2 (Bruker, 2004), APEX2 and SAINT (Bruker, 2004), SAINT and XPREP (Bruker, 2004), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O1i | 0.86 | 2.02 | 2.874 (1) | 174.4 |
C5—H5B···O3ii | 0.96 | 2.59 | 3.407 (2) | 142.6 |
Symmetry codes: (i) −x+2, −y+2, −z; (ii) x, −y+3/2, z−1/2. |
Footnotes
‡Additional correspondence author, e-mail: bhakthadoss@yahoo.com.
Acknowledgements
The authors thank Dr Babu Vargheese, SAIF, IIT, Madras, India, for his help with the data collection.
References
Ali, M. A., Ismail, R., Tan, S. C., Yeap, C. S. & Fun, H.-K. (2010). Acta Cryst. E66, o2533–o2534. Web of Science CSD CrossRef IUCr Journals Google Scholar
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555-1573. CrossRef CAS Web of Science Google Scholar
Bruker (2004). APEX2, SAINT and XPREP. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc. 97, 1354–1358. CrossRef CAS Web of Science Google Scholar
Duax, W. L., Weeks, C. M. & Rohrer, D. C. (1976). Topics in Stereochemistry, Vol. 9, edited by E. L. Eliel & N. L. Allinger, pp. 271–383. New York: John Wiley. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Huryn, D. M., Trost, B. M. & Fleming, I. (1991). Comp. Org. Synth. 1, 64–74. Google Scholar
Selvanayagam, S., Ravikumar, K., Saravanan, P. & Raghunathan, R. (2011). Acta Cryst. E67, o751. Web of Science CSD CrossRef IUCr Journals 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
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Suzuki, H., Aoyagi, S. & Kibayashi, C. (1994). Tetrahedron Lett. 35, 6119–6122. CrossRef CAS Web of Science Google Scholar
Waldmann, H. (1995). Synlett. pp. 133–141. CrossRef 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.
Highly functionalized pyrrolidines have gained much interest in the past few years as they constitute the main structural element of many natural and synthetic pharmacologically active compounds (Waldmann, 1995). Optically active pyrrolidines have been used as intermediates, chiral ligands or auxiliaries in controlled asymmetric synthesis (Suzuki et al., 1994; Huryn et al., 1991). In view of this importance, the crystal structure of the title compound has been carried out and the results are presented here.
The title compound consists of a pyrrolidine ring connected to a oxindole ring system at C1, a coumarine moiety at C2 and a benzene ring at C3. The X-ray analysis confirms the molecular structure and atom connectivity as illustrated in Fig.1.
The pyrrolidine (N1/C1–C4) ring adopts a twist conformation , with twist about the C4—N1 bond; the puckering parameters (Cremer & Pople, 1975), q2 = 0.4216 (14) Å and ϕ2 = 156.9 (2)°, and asymmetry parameters (Duax et al., 1976) ΔC2[C4—N1] = 5.0 Å. The six membered pyranone ring (O2/C2/C13/C14/C19/C20) of the coumarine moiety adopts screw-boat conformation as indicated from the puckering parameters: Q = 0.5296 (15) Å, θ = 65.9 (2)° and ϕ = 215.9 (2)°. The oxindole unit (N2/C1/C6–C12) is essentially planar [maximum deviation = 0.048 (1) Å for the C1 atom] and is oriented at a dihedral angles of 87.1 (1)° and 28.6 (1)°, respectively, with the pyrrolidine and coumarine rings. The sum of angles at N1 of the pyrrolidine ring (337°) is in accordance with sp3 hybridization, and the sum of angles at N2 of the indole moiety (360°) is in accordance with sp2 hybridization. The geometric parameters of the title molecule agrees well with those reported for similar structures (Selvanayagam et al., 2011; Ali et al., 2010).
Ihe molecular structure is stabilized by C3—H3···O3 and C13—H13A···O1 intramolecular hydrogen bonds, forming S(5) and S(6) ring motifs, respectively (Bernstein et al., 1995) (Table 1). The molecular structure is further stabilized by an intramolecular π—π interactions with Cg1—Cg2 seperation of 3.539 (1) Å. (Fig. 2; Cg1 and Cg2 are the centroids of the (N2/C1/C6/C7/C12) indole ring, (C14–C19) benzene ring, respectively). The crystal packing is stabilized by intermolecular N—H···O and C—H···O hydrogen bonds. The molecules at x, y, z and 2-x, 2-y, -z are linked by N2—H2···O1 hydrogen bonds into cyclic centrosymmetric R22(8) dimers. This dimers are further connected by C5—H5B···O3 hydrogen bonds forming supramolecular zig zag chains along the c axis (Fig. 3).