organic compounds
Methyl 3-(4-bromophenyl)-1-methyl-1,2,3,3a,4,9b-hexahydrobenzo[f]chromeno[4,3-b]pyrrole-3a-carboxylate
aDepartment of Physics, Easwari Engineering College, Ramapuram, Chennai 600 089, India, bDepartment of Physics, SRM University, Ramapuram Campus, Chennai 600 089, India, and cDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: sudharose18@gmail.com
In the title compound, C24H22BrNO3, the dihydropyran ring adopts a half-chair conformation, whereas the pyrrolidine ring is in an The bromophenyl group is oriented at an angle of 66.44 (4)° with respect to the naphthalene ring system. In the molecules are linked into centrosymmetric dimers by C—H⋯π interactions and the dimers are connected via C—H⋯Br hydrogen bonds. The is further stabilized by π–π interactions [centroid–centroid distance = 3.453 (1) Å].
Related literature
For the biological activity of pyrrole derivatives, see: Biava et al. (2005); Borthwick et al. (2000); Caine (1993); Carlson (1993); Fernandes et al. (2004); Jiang et al. (2004); Sokoloff et al. (1990); Tidey (1992); Wilner (1985). For a related structure, see: Nirmala et al. (2009). For ring-puckering parameters, see: Cremer & Pople (1975).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); data reduction: SAINT; 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, 2009).
Supporting information
10.1107/S1600536809029389/ci2858sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809029389/ci2858Isup2.hkl
A mixture of (Z)-methyl 2-((1-formylnaphthalen-2-yloxy)methyl)-3-(4-bromophenyl)acrylate (20 mmol) and sarcosine (30 mmol) were refluxed in benzene for 20 h and the solvent was removed under reduced pressure. The crude product was subjected to
to get the pure product. Chloroform and methanol (1:1) solvent mixture was used for the crystallization under slow evaporation method.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. Reflections 110 and 100 were omitted during the final cycles of
since they were seriously effected by the beamstop.Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (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, 2009).C24H22BrNO3 | F(000) = 928 |
Mr = 452.34 | Dx = 1.531 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 14860 reflections |
a = 12.7856 (4) Å | θ = 2.6–25.2° |
b = 19.9348 (6) Å | µ = 2.12 mm−1 |
c = 8.0189 (3) Å | T = 293 K |
β = 106.163 (2)° | Prism, colourless |
V = 1963.06 (11) Å3 | 0.25 × 0.20 × 0.15 mm |
Z = 4 |
Bruker Kappa APEXII area-detector diffractometer | 6162 independent reflections |
Radiation source: fine-focus sealed tube | 4068 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.031 |
ω and ϕ scans | θmax = 30.9°, θmin = 2.0° |
Absorption correction: multi-scan (Blessing, 1995) | h = −18→18 |
Tmin = 0.619, Tmax = 0.742 | k = −16→28 |
49847 measured reflections | l = −11→11 |
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)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.102 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0439P)2 + 0.7192P] where P = (Fo2 + 2Fc2)/3 |
6162 reflections | (Δ/σ)max = 0.001 |
262 parameters | Δρmax = 0.58 e Å−3 |
0 restraints | Δρmin = −0.51 e Å−3 |
C24H22BrNO3 | V = 1963.06 (11) Å3 |
Mr = 452.34 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 12.7856 (4) Å | µ = 2.12 mm−1 |
b = 19.9348 (6) Å | T = 293 K |
c = 8.0189 (3) Å | 0.25 × 0.20 × 0.15 mm |
β = 106.163 (2)° |
Bruker Kappa APEXII area-detector diffractometer | 6162 independent reflections |
Absorption correction: multi-scan (Blessing, 1995) | 4068 reflections with I > 2σ(I) |
Tmin = 0.619, Tmax = 0.742 | Rint = 0.031 |
49847 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 0 restraints |
wR(F2) = 0.102 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.58 e Å−3 |
6162 reflections | Δρmin = −0.51 e Å−3 |
262 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 | 0.68758 (13) | 0.58289 (8) | 0.6893 (2) | 0.0281 (3) | |
H1 | 0.7433 | 0.6171 | 0.6940 | 0.034* | |
C2 | 0.73957 (13) | 0.52048 (8) | 0.7836 (2) | 0.0287 (3) | |
C3 | 0.84557 (13) | 0.49812 (8) | 0.7827 (2) | 0.0306 (3) | |
C4 | 0.91361 (15) | 0.53431 (10) | 0.7029 (2) | 0.0381 (4) | |
H4 | 0.8889 | 0.5745 | 0.6470 | 0.046* | |
C5 | 1.01452 (16) | 0.51164 (11) | 0.7061 (2) | 0.0455 (5) | |
H5 | 1.0576 | 0.5367 | 0.6530 | 0.055* | |
C6 | 1.05416 (17) | 0.45149 (12) | 0.7878 (3) | 0.0510 (5) | |
H6 | 1.1226 | 0.4360 | 0.7869 | 0.061* | |
C7 | 0.99246 (17) | 0.41579 (11) | 0.8685 (3) | 0.0474 (5) | |
H7 | 1.0195 | 0.3759 | 0.9241 | 0.057* | |
C8 | 0.88813 (15) | 0.43783 (9) | 0.8699 (2) | 0.0357 (4) | |
C9 | 0.82649 (16) | 0.40202 (9) | 0.9600 (3) | 0.0425 (4) | |
H9 | 0.8535 | 0.3620 | 1.0149 | 0.051* | |
C10 | 0.72848 (16) | 0.42484 (9) | 0.9681 (2) | 0.0417 (4) | |
H10 | 0.6893 | 0.4013 | 1.0309 | 0.050* | |
C11 | 0.68588 (14) | 0.48451 (8) | 0.8811 (2) | 0.0329 (3) | |
C12 | 0.52824 (14) | 0.55294 (8) | 0.7923 (2) | 0.0338 (4) | |
H12A | 0.4714 | 0.5700 | 0.8396 | 0.041* | |
H12B | 0.4935 | 0.5324 | 0.6810 | 0.041* | |
C13 | 0.59903 (13) | 0.61089 (8) | 0.7656 (2) | 0.0289 (3) | |
C14 | 0.53395 (14) | 0.65915 (8) | 0.6186 (2) | 0.0333 (4) | |
H14 | 0.5695 | 0.7031 | 0.6403 | 0.040* | |
C15 | 0.55720 (16) | 0.63062 (10) | 0.4547 (2) | 0.0424 (4) | |
H15A | 0.4896 | 0.6189 | 0.3692 | 0.051* | |
H15B | 0.5952 | 0.6635 | 0.4040 | 0.051* | |
C16 | 0.41597 (13) | 0.66967 (8) | 0.6127 (2) | 0.0308 (3) | |
C17 | 0.38794 (16) | 0.72456 (9) | 0.6967 (3) | 0.0449 (5) | |
H17 | 0.4420 | 0.7544 | 0.7536 | 0.054* | |
C18 | 0.28173 (17) | 0.73619 (10) | 0.6981 (3) | 0.0491 (5) | |
H18 | 0.2645 | 0.7732 | 0.7558 | 0.059* | |
C19 | 0.20242 (15) | 0.69243 (9) | 0.6136 (2) | 0.0379 (4) | |
C20 | 0.22678 (14) | 0.63726 (9) | 0.5282 (2) | 0.0362 (4) | |
H20 | 0.1721 | 0.6077 | 0.4715 | 0.043* | |
C21 | 0.33319 (14) | 0.62635 (8) | 0.5280 (2) | 0.0337 (4) | |
H21 | 0.3499 | 0.5892 | 0.4699 | 0.040* | |
C22 | 0.68903 (16) | 0.55698 (9) | 0.3883 (2) | 0.0385 (4) | |
H22A | 0.7326 | 0.5177 | 0.4259 | 0.058* | |
H22B | 0.7357 | 0.5945 | 0.3858 | 0.058* | |
H22C | 0.6413 | 0.5496 | 0.2740 | 0.058* | |
C23 | 0.63964 (14) | 0.65052 (8) | 0.9323 (2) | 0.0338 (4) | |
C24 | 0.7836 (2) | 0.71536 (12) | 1.1053 (3) | 0.0631 (7) | |
H24A | 0.8555 | 0.7299 | 1.1072 | 0.095* | |
H24B | 0.7869 | 0.6896 | 1.2078 | 0.095* | |
H24C | 0.7378 | 0.7538 | 1.1018 | 0.095* | |
N1 | 0.62481 (12) | 0.57086 (7) | 0.50776 (18) | 0.0322 (3) | |
O1 | 0.58933 (10) | 0.50339 (6) | 0.90663 (17) | 0.0412 (3) | |
O2 | 0.73947 (11) | 0.67466 (8) | 0.9542 (2) | 0.0529 (4) | |
O3 | 0.58771 (13) | 0.66160 (9) | 1.03113 (19) | 0.0594 (4) | |
Br1 | 0.056104 (18) | 0.708461 (13) | 0.61041 (4) | 0.06427 (10) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0292 (8) | 0.0257 (7) | 0.0314 (8) | −0.0020 (6) | 0.0121 (6) | 0.0029 (6) |
C2 | 0.0324 (8) | 0.0275 (7) | 0.0275 (8) | 0.0002 (6) | 0.0103 (7) | 0.0006 (6) |
C3 | 0.0332 (8) | 0.0333 (8) | 0.0255 (8) | 0.0009 (6) | 0.0085 (6) | −0.0059 (6) |
C4 | 0.0382 (9) | 0.0452 (10) | 0.0322 (9) | 0.0007 (7) | 0.0118 (7) | −0.0013 (7) |
C5 | 0.0370 (10) | 0.0638 (13) | 0.0382 (10) | −0.0007 (9) | 0.0144 (8) | −0.0083 (9) |
C6 | 0.0379 (10) | 0.0685 (14) | 0.0469 (12) | 0.0140 (10) | 0.0121 (9) | −0.0119 (10) |
C7 | 0.0477 (11) | 0.0486 (11) | 0.0429 (11) | 0.0169 (9) | 0.0076 (9) | −0.0056 (9) |
C8 | 0.0382 (9) | 0.0375 (9) | 0.0297 (9) | 0.0063 (7) | 0.0064 (7) | −0.0052 (7) |
C9 | 0.0523 (11) | 0.0324 (9) | 0.0405 (10) | 0.0103 (8) | 0.0092 (9) | 0.0053 (8) |
C10 | 0.0512 (11) | 0.0344 (9) | 0.0426 (10) | 0.0008 (8) | 0.0181 (9) | 0.0105 (8) |
C11 | 0.0362 (9) | 0.0315 (8) | 0.0326 (9) | 0.0004 (7) | 0.0124 (7) | 0.0030 (7) |
C12 | 0.0304 (8) | 0.0343 (8) | 0.0397 (9) | 0.0005 (6) | 0.0146 (7) | 0.0089 (7) |
C13 | 0.0278 (8) | 0.0288 (7) | 0.0324 (8) | 0.0006 (6) | 0.0122 (6) | 0.0043 (6) |
C14 | 0.0322 (8) | 0.0302 (8) | 0.0375 (9) | 0.0009 (6) | 0.0100 (7) | 0.0072 (7) |
C15 | 0.0399 (10) | 0.0523 (11) | 0.0375 (10) | 0.0099 (8) | 0.0150 (8) | 0.0143 (8) |
C16 | 0.0321 (8) | 0.0260 (7) | 0.0334 (9) | 0.0029 (6) | 0.0077 (7) | 0.0028 (6) |
C17 | 0.0396 (10) | 0.0328 (9) | 0.0559 (12) | 0.0008 (7) | 0.0024 (9) | −0.0141 (8) |
C18 | 0.0480 (11) | 0.0385 (10) | 0.0585 (13) | 0.0110 (8) | 0.0106 (10) | −0.0155 (9) |
C19 | 0.0348 (9) | 0.0392 (9) | 0.0401 (10) | 0.0095 (7) | 0.0110 (8) | 0.0041 (7) |
C20 | 0.0348 (9) | 0.0346 (9) | 0.0373 (9) | −0.0027 (7) | 0.0068 (7) | −0.0015 (7) |
C21 | 0.0377 (9) | 0.0293 (8) | 0.0346 (9) | 0.0016 (7) | 0.0110 (7) | −0.0045 (7) |
C22 | 0.0453 (10) | 0.0421 (10) | 0.0315 (9) | −0.0002 (8) | 0.0164 (8) | 0.0016 (7) |
C23 | 0.0333 (9) | 0.0317 (8) | 0.0367 (9) | 0.0059 (7) | 0.0103 (7) | 0.0042 (7) |
C24 | 0.0480 (13) | 0.0636 (14) | 0.0739 (16) | −0.0068 (10) | 0.0107 (11) | −0.0321 (12) |
N1 | 0.0346 (7) | 0.0358 (7) | 0.0280 (7) | −0.0006 (6) | 0.0118 (6) | 0.0051 (6) |
O1 | 0.0393 (7) | 0.0416 (7) | 0.0498 (8) | 0.0059 (5) | 0.0238 (6) | 0.0190 (6) |
O2 | 0.0394 (7) | 0.0582 (9) | 0.0646 (9) | −0.0116 (6) | 0.0203 (7) | −0.0283 (7) |
O3 | 0.0555 (9) | 0.0822 (11) | 0.0476 (8) | −0.0085 (8) | 0.0263 (7) | −0.0169 (8) |
Br1 | 0.04256 (13) | 0.07000 (17) | 0.0859 (2) | 0.01747 (10) | 0.02724 (12) | 0.00945 (12) |
C1—N1 | 1.473 (2) | C14—C16 | 1.511 (2) |
C1—C2 | 1.510 (2) | C14—C15 | 1.536 (3) |
C1—C13 | 1.534 (2) | C14—H14 | 0.98 |
C1—H1 | 0.98 | C15—N1 | 1.464 (2) |
C2—C11 | 1.377 (2) | C15—H15A | 0.97 |
C2—C3 | 1.429 (2) | C15—H15B | 0.97 |
C3—C4 | 1.413 (2) | C16—C17 | 1.383 (2) |
C3—C8 | 1.421 (2) | C16—C21 | 1.388 (2) |
C4—C5 | 1.361 (3) | C17—C18 | 1.381 (3) |
C4—H4 | 0.93 | C17—H17 | 0.93 |
C5—C6 | 1.392 (3) | C18—C19 | 1.366 (3) |
C5—H5 | 0.93 | C18—H18 | 0.93 |
C6—C7 | 1.353 (3) | C19—C20 | 1.376 (3) |
C6—H6 | 0.93 | C19—Br1 | 1.8910 (18) |
C7—C8 | 1.408 (3) | C20—C21 | 1.378 (2) |
C7—H7 | 0.93 | C20—H20 | 0.93 |
C8—C9 | 1.403 (3) | C21—H21 | 0.93 |
C9—C10 | 1.352 (3) | C22—N1 | 1.452 (2) |
C9—H9 | 0.93 | C22—H22A | 0.96 |
C10—C11 | 1.410 (2) | C22—H22B | 0.96 |
C10—H10 | 0.93 | C22—H22C | 0.96 |
C11—O1 | 1.360 (2) | C23—O3 | 1.188 (2) |
C12—O1 | 1.424 (2) | C23—O2 | 1.329 (2) |
C12—C13 | 1.519 (2) | C24—O2 | 1.437 (3) |
C12—H12A | 0.97 | C24—H24A | 0.96 |
C12—H12B | 0.97 | C24—H24B | 0.96 |
C13—C23 | 1.514 (2) | C24—H24C | 0.96 |
C13—C14 | 1.569 (2) | ||
N1—C1—C2 | 113.78 (13) | C16—C14—C13 | 115.15 (13) |
N1—C1—C13 | 101.17 (13) | C15—C14—C13 | 103.15 (13) |
C2—C1—C13 | 111.80 (13) | C16—C14—H14 | 107.0 |
N1—C1—H1 | 109.9 | C15—C14—H14 | 107.0 |
C2—C1—H1 | 109.9 | C13—C14—H14 | 107.0 |
C13—C1—H1 | 109.9 | N1—C15—C14 | 106.96 (14) |
C11—C2—C3 | 117.65 (15) | N1—C15—H15A | 110.3 |
C11—C2—C1 | 119.57 (14) | C14—C15—H15A | 110.3 |
C3—C2—C1 | 122.72 (14) | N1—C15—H15B | 110.3 |
C4—C3—C8 | 117.08 (16) | C14—C15—H15B | 110.3 |
C4—C3—C2 | 123.20 (15) | H15A—C15—H15B | 108.6 |
C8—C3—C2 | 119.69 (15) | C17—C16—C21 | 117.69 (16) |
C5—C4—C3 | 121.46 (18) | C17—C16—C14 | 119.11 (15) |
C5—C4—H4 | 119.3 | C21—C16—C14 | 123.20 (15) |
C3—C4—H4 | 119.3 | C18—C17—C16 | 121.72 (17) |
C4—C5—C6 | 120.93 (19) | C18—C17—H17 | 119.1 |
C4—C5—H5 | 119.5 | C16—C17—H17 | 119.1 |
C6—C5—H5 | 119.5 | C19—C18—C17 | 118.97 (17) |
C7—C6—C5 | 119.57 (18) | C19—C18—H18 | 120.5 |
C7—C6—H6 | 120.2 | C17—C18—H18 | 120.5 |
C5—C6—H6 | 120.2 | C18—C19—C20 | 121.18 (17) |
C6—C7—C8 | 121.30 (19) | C18—C19—Br1 | 119.58 (14) |
C6—C7—H7 | 119.4 | C20—C19—Br1 | 119.23 (14) |
C8—C7—H7 | 119.4 | C19—C20—C21 | 119.14 (16) |
C9—C8—C7 | 120.97 (17) | C19—C20—H20 | 120.4 |
C9—C8—C3 | 119.39 (16) | C21—C20—H20 | 120.4 |
C7—C8—C3 | 119.61 (18) | C20—C21—C16 | 121.29 (15) |
C10—C9—C8 | 120.98 (17) | C20—C21—H21 | 119.4 |
C10—C9—H9 | 119.5 | C16—C21—H21 | 119.4 |
C8—C9—H9 | 119.5 | N1—C22—H22A | 109.5 |
C9—C10—C11 | 119.71 (17) | N1—C22—H22B | 109.5 |
C9—C10—H10 | 120.1 | H22A—C22—H22B | 109.5 |
C11—C10—H10 | 120.1 | N1—C22—H22C | 109.5 |
O1—C11—C2 | 123.97 (15) | H22A—C22—H22C | 109.5 |
O1—C11—C10 | 113.62 (15) | H22B—C22—H22C | 109.5 |
C2—C11—C10 | 122.39 (16) | O3—C23—O2 | 122.60 (17) |
O1—C12—C13 | 112.14 (14) | O3—C23—C13 | 124.61 (16) |
O1—C12—H12A | 109.2 | O2—C23—C13 | 112.73 (14) |
C13—C12—H12A | 109.2 | O2—C24—H24A | 109.5 |
O1—C12—H12B | 109.2 | O2—C24—H24B | 109.5 |
C13—C12—H12B | 109.2 | H24A—C24—H24B | 109.5 |
H12A—C12—H12B | 107.9 | O2—C24—H24C | 109.5 |
C23—C13—C12 | 110.09 (14) | H24A—C24—H24C | 109.5 |
C23—C13—C1 | 115.59 (13) | H24B—C24—H24C | 109.5 |
C12—C13—C1 | 108.33 (13) | C22—N1—C15 | 111.10 (13) |
C23—C13—C14 | 108.83 (13) | C22—N1—C1 | 115.52 (14) |
C12—C13—C14 | 111.11 (13) | C15—N1—C1 | 105.67 (13) |
C1—C13—C14 | 102.70 (13) | C11—O1—C12 | 116.96 (12) |
C16—C14—C15 | 117.01 (15) | C23—O2—C24 | 116.95 (16) |
N1—C1—C2—C11 | −94.11 (18) | C12—C13—C14—C16 | 37.3 (2) |
C13—C1—C2—C11 | 19.7 (2) | C1—C13—C14—C16 | 152.89 (14) |
N1—C1—C2—C3 | 88.72 (18) | C23—C13—C14—C15 | 147.21 (14) |
C13—C1—C2—C3 | −157.44 (15) | C12—C13—C14—C15 | −91.41 (16) |
C11—C2—C3—C4 | −173.26 (16) | C1—C13—C14—C15 | 24.21 (16) |
C1—C2—C3—C4 | 4.0 (2) | C16—C14—C15—N1 | −125.38 (15) |
C11—C2—C3—C8 | 4.7 (2) | C13—C14—C15—N1 | 2.14 (18) |
C1—C2—C3—C8 | −178.13 (15) | C15—C14—C16—C17 | −143.63 (18) |
C8—C3—C4—C5 | 1.5 (3) | C13—C14—C16—C17 | 94.9 (2) |
C2—C3—C4—C5 | 179.42 (16) | C15—C14—C16—C21 | 37.0 (2) |
C3—C4—C5—C6 | 0.3 (3) | C13—C14—C16—C21 | −84.4 (2) |
C4—C5—C6—C7 | −1.5 (3) | C21—C16—C17—C18 | 0.5 (3) |
C5—C6—C7—C8 | 0.7 (3) | C14—C16—C17—C18 | −178.94 (19) |
C6—C7—C8—C9 | −177.30 (18) | C16—C17—C18—C19 | −0.3 (3) |
C6—C7—C8—C3 | 1.1 (3) | C17—C18—C19—C20 | 0.2 (3) |
C4—C3—C8—C9 | 176.27 (16) | C17—C18—C19—Br1 | −178.80 (16) |
C2—C3—C8—C9 | −1.8 (2) | C18—C19—C20—C21 | −0.2 (3) |
C4—C3—C8—C7 | −2.1 (2) | Br1—C19—C20—C21 | 178.80 (13) |
C2—C3—C8—C7 | 179.83 (16) | C19—C20—C21—C16 | 0.3 (3) |
C7—C8—C9—C10 | 176.89 (18) | C17—C16—C21—C20 | −0.5 (3) |
C3—C8—C9—C10 | −1.5 (3) | C14—C16—C21—C20 | 178.91 (16) |
C8—C9—C10—C11 | 1.8 (3) | C12—C13—C23—O3 | −37.5 (2) |
C3—C2—C11—O1 | 173.77 (15) | C1—C13—C23—O3 | −160.58 (17) |
C1—C2—C11—O1 | −3.5 (3) | C14—C13—C23—O3 | 84.5 (2) |
C3—C2—C11—C10 | −4.5 (3) | C12—C13—C23—O2 | 145.27 (15) |
C1—C2—C11—C10 | 178.16 (16) | C1—C13—C23—O2 | 22.1 (2) |
C9—C10—C11—O1 | −177.08 (17) | C14—C13—C23—O2 | −92.74 (17) |
C9—C10—C11—C2 | 1.4 (3) | C14—C15—N1—C22 | −155.30 (15) |
O1—C12—C13—C23 | −67.90 (18) | C14—C15—N1—C1 | −29.30 (18) |
O1—C12—C13—C1 | 59.38 (18) | C2—C1—N1—C22 | −72.26 (17) |
O1—C12—C13—C14 | 171.46 (13) | C13—C1—N1—C22 | 167.70 (13) |
N1—C1—C13—C23 | −160.07 (13) | C2—C1—N1—C15 | 164.50 (13) |
C2—C1—C13—C23 | 78.49 (17) | C13—C1—N1—C15 | 44.46 (15) |
N1—C1—C13—C12 | 75.89 (15) | C2—C11—O1—C12 | 16.4 (2) |
C2—C1—C13—C12 | −45.55 (18) | C10—C11—O1—C12 | −165.22 (16) |
N1—C1—C13—C14 | −41.73 (14) | C13—C12—O1—C11 | −45.0 (2) |
C2—C1—C13—C14 | −163.17 (13) | O3—C23—O2—C24 | 0.2 (3) |
C23—C13—C14—C16 | −84.11 (17) | C13—C23—O2—C24 | 177.54 (17) |
D—H···A | D—H | H···A | D···A | D—H···A |
C24—H24A···Br1i | 0.96 | 2.84 | 3.789 (3) | 172 |
C20—H20···Cg1ii | 0.93 | 2.77 | 3.653 (2) | 160 |
Symmetry codes: (i) x+1, −y+3/2, z+1/2; (ii) −x+1, −y, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C24H22BrNO3 |
Mr | 452.34 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 12.7856 (4), 19.9348 (6), 8.0189 (3) |
β (°) | 106.163 (2) |
V (Å3) | 1963.06 (11) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.12 |
Crystal size (mm) | 0.25 × 0.20 × 0.15 |
Data collection | |
Diffractometer | Bruker Kappa APEXII area-detector diffractometer |
Absorption correction | Multi-scan (Blessing, 1995) |
Tmin, Tmax | 0.619, 0.742 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 49847, 6162, 4068 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.722 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.102, 1.02 |
No. of reflections | 6162 |
No. of parameters | 262 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.58, −0.51 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C24—H24A···Br1i | 0.96 | 2.84 | 3.789 (3) | 172 |
C20—H20···Cg1ii | 0.93 | 2.77 | 3.653 (2) | 160 |
Symmetry codes: (i) x+1, −y+3/2, z+1/2; (ii) −x+1, −y, −z+2. |
Acknowledgements
SN thanks Dr Babu Vargheese, SAIF, IIT Madras, India, for his help with the data collection and SRM management, India, for their support.
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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.
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). Pyrrole derivatives have good in vitro activities against mycobacteria and candidae (Biava et al., 2005). These derivatives also possess anti-inflammatory (Fernandes et al., 2004) and antiviral (Borthwick et al., 2000) activities. It has also been shown that N-substituted pyrrole derivatives inhibit human immuno deficiency virus type-I (HIV-I) (Jiang et al., 2004). In view of its medicinal importance, the crystal structure determination of the title compound was undertaken.
The geometric parameters of the title molecule (Fig. 1) agree well with those reported for a similar structure (Nirmala et al., 2009). The sum of bond angles around atom N1 [332.0 (8)°] is in accordance with sp3 hybridization. The naphthalene ring system (C2-C11) and the bromophenyl group (Br1/C16-C21) are oriented at an angle of 66.44 (4)° with respect to each other. The heterocyclic ring (O1/C1/C2/C11-C13) of the chromenopyrrole unit adopts a half chair conformation with puckering parameters Q = 0.468 (2) Å, θ = 132.5 (2)° and ϕ = 83.1 (3)° (Cremer & Pople, 1975). The pyrrolidine ring (N1/C1/C13-C15) adopts an envelope conformation with puckering parameters q2 = 0.433 (2) Å and ϕ = 214.5 (3)° (Cremer & Pople, 1975). Atom C1 deviates by -0.654 Å from the least-square plane through the remaining four atoms.
The crystal packing is stabilized by intermolecular C—H···Br hydrogen bonds. The molecules are linked into centrosymmetric dimers by C—H···π (C20—H20···Cg1; Cg1 is the centroid of the C3—C8 ring) interactions (Table 1). In addition, π–π interactions between C3—C8 rings at (x, y, z) and (2 -x, 1 -y, 2 -z) stabilize the structure, with a centroid-to-centroid distance of 3.453 (1) Å.