organic compounds
Ethyl 3-[2-(3,4-dimethoxybenzyl)-1-phenylsulfonyl-1H-indol-3-yl]acrylate chloroform hemisolvate
aCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India, and bDepartment of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: mnpsy2004@yahoo.com
In the title compound, C28H27NO6S·0.5CHCl3, the ethyl acrylate substituent adopts an extented conformation with all torsion angles close to 180°. The chloroform solvent molecule is disordered across an inversion centre and is therefore half occupied. The molecular packing is controlled by intermolecular C—H⋯O interactions.
Related literature
For general background to indoles, see: Hu et al. (2005); Nieto et al. (2005); Mathiesen et al. (2005); Olgen & Nebioglu (2002). For the sulfonyl moiety, see: Bassindale (1984). For see: Beddoes et al. (1986). 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 SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXS97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811017740/bt5508sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811017740/bt5508Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811017740/bt5508Isup3.cml
To a solution of (E)-Ethyl 3-(2-(bromomethyl)-1-(phenylsulfonyl)-1H-indol-3-yl) acrylate (0.3 g, 0.66 mmol) in dry DME (10 ml), ZnBr2 (0.3 g, 1.3 mmol), K2CO3 (0.18 g, 1.33 mmol) and veratrole (0.11 g, 0.79 mmol) were added. The reaction mixture was then refluxed for 12hrs under N2 atmosphere. The solvent was removed and the reaction mixture was quenched with ice-water (100 mL) containing 2 mL of conc.HCl. It was then extracted with chloroform (20 mL) and dried (Na2SO4). Removal of the solvent followed by crystallization from methanol afforded the product as pale yellow crystals.
H atoms were positioned geometrically (C—H = 0.93–0.97 Å) and allowed to ride on their parent atoms, with Uiso(H) = 1.5Ueq(C) for methyl and 1.2Ueq(C) for other H atoms. The chloroform solvent is disordered across inversion centre with the site occupancies of 0.5 for each. The corresponding bond distances involving the disordered atoms C30, Cl1, Cl2 and Cl3 were restrained to 1.74 (1) Å and also their displacement parameters were restrained to an approximate isotropic behaviour.
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: SHELXS97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The ORTEP plot of the title compound, showing 30% probability displacement ellipsoids. H atoms omitted for clarity. | |
Fig. 2. The packing of the molecules showing intermolecular C—H···O hydrogen bonds (dashed lines). |
C28H27NO6S·0.5CHCl3 | Z = 2 |
Mr = 565.25 | F(000) = 590 |
Triclinic, P1 | Dx = 1.376 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.2154 (3) Å | Cell parameters from 10612 reflections |
b = 12.0504 (4) Å | θ = 1.8–34.4° |
c = 12.6310 (4) Å | µ = 0.31 mm−1 |
α = 70.602 (2)° | T = 293 K |
β = 69.613 (1)° | Block, yellow |
γ = 77.056 (2)° | 0.30 × 0.25 × 0.20 mm |
V = 1364.39 (7) Å3 |
Bruker Kappa APEXII area-detector diffractometer | 10612 independent reflections |
Radiation source: fine-focus sealed tube | 7709 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
ω and ϕ scans | θmax = 34.4°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2001) | h = −15→16 |
Tmin = 0.913, Tmax = 0.941 | k = −18→18 |
38797 measured reflections | l = −18→19 |
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)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.189 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.1059P)2 + 0.3616P] where P = (Fo2 + 2Fc2)/3 |
10612 reflections | (Δ/σ)max = 0.005 |
364 parameters | Δρmax = 0.73 e Å−3 |
27 restraints | Δρmin = −0.46 e Å−3 |
C28H27NO6S·0.5CHCl3 | γ = 77.056 (2)° |
Mr = 565.25 | V = 1364.39 (7) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.2154 (3) Å | Mo Kα radiation |
b = 12.0504 (4) Å | µ = 0.31 mm−1 |
c = 12.6310 (4) Å | T = 293 K |
α = 70.602 (2)° | 0.30 × 0.25 × 0.20 mm |
β = 69.613 (1)° |
Bruker Kappa APEXII area-detector diffractometer | 10612 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2001) | 7709 reflections with I > 2σ(I) |
Tmin = 0.913, Tmax = 0.941 | Rint = 0.026 |
38797 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 27 restraints |
wR(F2) = 0.189 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.73 e Å−3 |
10612 reflections | Δρmin = −0.46 e Å−3 |
364 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 | Occ. (<1) | |
C2 | 0.72857 (13) | 0.61852 (12) | 0.05863 (12) | 0.0264 (2) | |
C3 | 0.81718 (13) | 0.63351 (12) | −0.05351 (12) | 0.0274 (2) | |
C4 | 0.95289 (13) | 0.65050 (12) | −0.05427 (12) | 0.0263 (2) | |
C5 | 1.07996 (14) | 0.66763 (13) | −0.14331 (13) | 0.0315 (3) | |
H5 | 1.0889 | 0.6670 | −0.2189 | 0.038* | |
C6 | 1.19275 (15) | 0.68563 (15) | −0.11662 (15) | 0.0364 (3) | |
H6 | 1.2784 | 0.6974 | −0.1750 | 0.044* | |
C7 | 1.17913 (15) | 0.68629 (15) | −0.00368 (16) | 0.0379 (3) | |
H7 | 1.2559 | 0.7000 | 0.0116 | 0.045* | |
C8 | 1.05530 (15) | 0.66722 (15) | 0.08678 (14) | 0.0356 (3) | |
H8 | 1.0476 | 0.6666 | 0.1625 | 0.043* | |
C9 | 0.94241 (13) | 0.64898 (12) | 0.05935 (12) | 0.0279 (2) | |
C10 | 0.70544 (17) | 0.78432 (16) | 0.26272 (14) | 0.0377 (3) | |
C11 | 0.5742 (2) | 0.84292 (17) | 0.25639 (15) | 0.0432 (4) | |
H11 | 0.5084 | 0.8035 | 0.2523 | 0.052* | |
C12 | 0.5421 (3) | 0.9606 (2) | 0.2561 (2) | 0.0574 (5) | |
H12 | 0.4541 | 1.0006 | 0.2523 | 0.069* | |
C13 | 0.6404 (3) | 1.0186 (2) | 0.2616 (3) | 0.0744 (8) | |
H13 | 0.6187 | 1.0980 | 0.2609 | 0.089* | |
C14 | 0.7695 (3) | 0.9599 (3) | 0.2680 (3) | 0.0806 (9) | |
H14 | 0.8348 | 0.9999 | 0.2720 | 0.097* | |
C15 | 0.8049 (2) | 0.8418 (2) | 0.2685 (2) | 0.0587 (6) | |
H15 | 0.8931 | 0.8022 | 0.2727 | 0.070* | |
C16 | 0.58220 (13) | 0.58587 (12) | 0.10469 (13) | 0.0292 (3) | |
H16A | 0.5727 | 0.5253 | 0.1792 | 0.035* | |
H16B | 0.5688 | 0.5514 | 0.0504 | 0.035* | |
C17 | 0.46644 (13) | 0.68702 (12) | 0.12265 (12) | 0.0269 (2) | |
C18 | 0.47327 (14) | 0.79830 (13) | 0.04363 (13) | 0.0312 (3) | |
H18 | 0.5530 | 0.8133 | −0.0208 | 0.037* | |
C19 | 0.36222 (16) | 0.88845 (13) | 0.05909 (14) | 0.0347 (3) | |
H19 | 0.3682 | 0.9628 | 0.0047 | 0.042* | |
C20 | 0.24365 (15) | 0.86818 (14) | 0.15431 (15) | 0.0350 (3) | |
C21 | 0.23710 (14) | 0.75648 (14) | 0.23783 (13) | 0.0326 (3) | |
C22 | 0.34699 (14) | 0.66710 (13) | 0.22105 (12) | 0.0296 (3) | |
H22 | 0.3417 | 0.5928 | 0.2756 | 0.036* | |
C23 | 0.1240 (3) | 1.0559 (2) | 0.0848 (3) | 0.0857 (10) | |
H23A | 0.1932 | 1.1019 | 0.0787 | 0.129* | |
H23B | 0.0323 | 1.1002 | 0.1029 | 0.129* | |
H23C | 0.1440 | 1.0385 | 0.0115 | 0.129* | |
C24 | 0.1089 (2) | 0.6366 (2) | 0.42176 (19) | 0.0577 (5) | |
H24A | 0.1140 | 0.5729 | 0.3903 | 0.087* | |
H24B | 0.0213 | 0.6415 | 0.4826 | 0.087* | |
H24C | 0.1855 | 0.6224 | 0.4539 | 0.087* | |
C25 | 0.79102 (15) | 0.63214 (13) | −0.15877 (13) | 0.0311 (3) | |
H25 | 0.8700 | 0.6102 | −0.2158 | 0.037* | |
C26 | 0.67095 (15) | 0.65761 (15) | −0.18607 (13) | 0.0342 (3) | |
H26 | 0.5864 | 0.6751 | −0.1316 | 0.041* | |
C27 | 0.67332 (16) | 0.65776 (16) | −0.30294 (13) | 0.0358 (3) | |
C28 | 0.5395 (2) | 0.6890 (3) | −0.43115 (17) | 0.0634 (6) | |
H28A | 0.5753 | 0.6117 | −0.4448 | 0.076* | |
H28B | 0.5976 | 0.7465 | −0.4927 | 0.076* | |
C29 | 0.3931 (3) | 0.7211 (3) | −0.4337 (2) | 0.0673 (7) | |
H29A | 0.3356 | 0.6655 | −0.3710 | 0.101* | |
H29B | 0.3881 | 0.7196 | −0.5077 | 0.101* | |
H29C | 0.3599 | 0.7993 | −0.4242 | 0.101* | |
N1 | 0.80387 (12) | 0.62707 (11) | 0.13020 (10) | 0.0292 (2) | |
O1 | 0.61261 (13) | 0.58330 (11) | 0.31986 (10) | 0.0420 (3) | |
O2 | 0.85541 (15) | 0.58180 (14) | 0.31850 (11) | 0.0509 (3) | |
O3 | 0.12766 (14) | 0.94873 (12) | 0.17533 (14) | 0.0550 (4) | |
O4 | 0.11775 (12) | 0.74569 (12) | 0.33019 (12) | 0.0468 (3) | |
O7 | 0.77576 (14) | 0.63380 (17) | −0.37800 (13) | 0.0608 (4) | |
O8 | 0.54527 (12) | 0.68657 (14) | −0.31723 (10) | 0.0482 (3) | |
S1 | 0.74189 (4) | 0.63276 (4) | 0.26998 (3) | 0.03379 (10) | |
C30 | 1.0269 (8) | −0.0254 (6) | 0.4558 (6) | 0.113 (3) | 0.50 |
H30A | 1.0428 | −0.0660 | 0.3979 | 0.136* | 0.50 |
Cl1 | 0.9317 (6) | 0.1115 (4) | 0.4302 (5) | 0.199 (2) | 0.50 |
Cl2 | 0.9683 (8) | −0.1068 (4) | 0.5950 (4) | 0.223 (3) | 0.50 |
Cl3 | 1.1858 (5) | 0.0222 (6) | 0.4566 (6) | 0.241 (2) | 0.50 |
U11 | U22 | U33 | U12 | U13 | U23 | |
C2 | 0.0239 (5) | 0.0266 (6) | 0.0284 (6) | −0.0029 (4) | −0.0068 (4) | −0.0083 (5) |
C3 | 0.0237 (5) | 0.0287 (6) | 0.0294 (6) | −0.0024 (4) | −0.0067 (4) | −0.0093 (5) |
C4 | 0.0233 (5) | 0.0246 (6) | 0.0297 (6) | −0.0015 (4) | −0.0063 (4) | −0.0084 (5) |
C5 | 0.0256 (6) | 0.0342 (7) | 0.0311 (6) | −0.0035 (5) | −0.0032 (5) | −0.0102 (5) |
C6 | 0.0237 (6) | 0.0394 (8) | 0.0433 (8) | −0.0042 (5) | −0.0032 (5) | −0.0149 (6) |
C7 | 0.0250 (6) | 0.0452 (8) | 0.0483 (9) | −0.0049 (5) | −0.0097 (6) | −0.0199 (7) |
C8 | 0.0286 (6) | 0.0450 (8) | 0.0383 (8) | −0.0033 (5) | −0.0102 (5) | −0.0186 (6) |
C9 | 0.0242 (5) | 0.0283 (6) | 0.0311 (6) | −0.0017 (4) | −0.0072 (4) | −0.0102 (5) |
C10 | 0.0395 (7) | 0.0459 (8) | 0.0285 (7) | −0.0127 (6) | −0.0010 (5) | −0.0162 (6) |
C11 | 0.0526 (9) | 0.0454 (9) | 0.0356 (8) | −0.0058 (7) | −0.0139 (7) | −0.0158 (7) |
C12 | 0.0707 (13) | 0.0472 (11) | 0.0538 (12) | −0.0002 (9) | −0.0168 (10) | −0.0197 (9) |
C13 | 0.0876 (18) | 0.0528 (13) | 0.0797 (18) | −0.0212 (12) | 0.0009 (14) | −0.0335 (12) |
C14 | 0.0689 (15) | 0.0828 (18) | 0.102 (2) | −0.0386 (14) | 0.0080 (14) | −0.0570 (17) |
C15 | 0.0406 (9) | 0.0773 (15) | 0.0694 (14) | −0.0203 (9) | 0.0008 (8) | −0.0441 (12) |
C16 | 0.0246 (5) | 0.0294 (6) | 0.0327 (6) | −0.0057 (4) | −0.0051 (5) | −0.0095 (5) |
C17 | 0.0223 (5) | 0.0303 (6) | 0.0278 (6) | −0.0055 (4) | −0.0055 (4) | −0.0081 (5) |
C18 | 0.0268 (6) | 0.0339 (7) | 0.0293 (6) | −0.0069 (5) | −0.0041 (5) | −0.0066 (5) |
C19 | 0.0325 (6) | 0.0293 (7) | 0.0364 (7) | −0.0056 (5) | −0.0072 (5) | −0.0038 (5) |
C20 | 0.0287 (6) | 0.0310 (7) | 0.0409 (8) | −0.0015 (5) | −0.0059 (5) | −0.0104 (6) |
C21 | 0.0250 (6) | 0.0362 (7) | 0.0332 (7) | −0.0061 (5) | −0.0021 (5) | −0.0104 (6) |
C22 | 0.0260 (5) | 0.0300 (6) | 0.0296 (6) | −0.0064 (4) | −0.0052 (5) | −0.0055 (5) |
C23 | 0.0520 (12) | 0.0391 (11) | 0.113 (2) | 0.0090 (9) | 0.0024 (13) | 0.0079 (12) |
C24 | 0.0444 (9) | 0.0549 (11) | 0.0452 (10) | −0.0098 (8) | 0.0117 (8) | −0.0017 (8) |
C25 | 0.0298 (6) | 0.0364 (7) | 0.0278 (6) | −0.0047 (5) | −0.0068 (5) | −0.0110 (5) |
C26 | 0.0302 (6) | 0.0446 (8) | 0.0295 (6) | −0.0017 (5) | −0.0078 (5) | −0.0156 (6) |
C27 | 0.0322 (6) | 0.0477 (8) | 0.0293 (7) | −0.0073 (6) | −0.0066 (5) | −0.0141 (6) |
C28 | 0.0493 (10) | 0.116 (2) | 0.0294 (8) | −0.0157 (11) | −0.0110 (7) | −0.0228 (10) |
C29 | 0.0630 (13) | 0.103 (2) | 0.0438 (11) | −0.0165 (13) | −0.0262 (10) | −0.0151 (12) |
N1 | 0.0253 (5) | 0.0349 (6) | 0.0271 (5) | −0.0041 (4) | −0.0054 (4) | −0.0106 (4) |
O1 | 0.0429 (6) | 0.0477 (7) | 0.0297 (5) | −0.0165 (5) | −0.0017 (4) | −0.0060 (5) |
O2 | 0.0485 (7) | 0.0687 (9) | 0.0352 (6) | −0.0030 (6) | −0.0203 (5) | −0.0084 (6) |
O3 | 0.0369 (6) | 0.0367 (6) | 0.0681 (9) | 0.0056 (5) | 0.0009 (6) | −0.0092 (6) |
O4 | 0.0319 (5) | 0.0444 (7) | 0.0440 (7) | −0.0035 (5) | 0.0078 (5) | −0.0077 (5) |
O7 | 0.0395 (7) | 0.1053 (13) | 0.0413 (7) | −0.0004 (7) | −0.0046 (5) | −0.0383 (8) |
O8 | 0.0346 (6) | 0.0831 (10) | 0.0283 (5) | −0.0080 (6) | −0.0089 (4) | −0.0174 (6) |
S1 | 0.03402 (18) | 0.0409 (2) | 0.02481 (17) | −0.00679 (14) | −0.00670 (12) | −0.00787 (14) |
C30 | 0.145 (6) | 0.099 (5) | 0.098 (5) | 0.038 (4) | −0.053 (4) | −0.047 (4) |
Cl1 | 0.273 (5) | 0.147 (3) | 0.235 (5) | 0.091 (3) | −0.201 (5) | −0.071 (3) |
Cl2 | 0.327 (6) | 0.129 (3) | 0.147 (3) | −0.070 (4) | 0.001 (4) | −0.003 (2) |
Cl3 | 0.162 (3) | 0.292 (6) | 0.246 (5) | 0.010 (4) | −0.066 (3) | −0.065 (4) |
C2—C3 | 1.3669 (19) | C23—O3 | 1.416 (3) |
C2—N1 | 1.4146 (17) | C23—H23A | 0.9600 |
C2—C16 | 1.4948 (17) | C23—H23B | 0.9600 |
C3—C4 | 1.4424 (17) | C23—H23C | 0.9600 |
C3—C25 | 1.4503 (19) | C24—O4 | 1.430 (2) |
C4—C5 | 1.3932 (18) | C24—H24A | 0.9600 |
C4—C9 | 1.3956 (19) | C24—H24B | 0.9600 |
C5—C6 | 1.385 (2) | C24—H24C | 0.9600 |
C5—H5 | 0.9300 | C25—C26 | 1.332 (2) |
C6—C7 | 1.387 (2) | C25—H25 | 0.9300 |
C6—H6 | 0.9300 | C26—C27 | 1.467 (2) |
C7—C8 | 1.381 (2) | C26—H26 | 0.9300 |
C7—H7 | 0.9300 | C27—O7 | 1.1969 (19) |
C8—C9 | 1.3931 (19) | C27—O8 | 1.3355 (19) |
C8—H8 | 0.9300 | C28—O8 | 1.451 (2) |
C9—N1 | 1.4148 (17) | C28—C29 | 1.467 (3) |
C10—C11 | 1.384 (3) | C28—H28A | 0.9700 |
C10—C15 | 1.385 (2) | C28—H28B | 0.9700 |
C10—S1 | 1.7581 (18) | C29—H29A | 0.9600 |
C11—C12 | 1.381 (3) | C29—H29B | 0.9600 |
C11—H11 | 0.9300 | C29—H29C | 0.9600 |
C12—C13 | 1.377 (4) | N1—S1 | 1.6749 (12) |
C12—H12 | 0.9300 | O1—S1 | 1.4211 (12) |
C13—C14 | 1.366 (4) | O2—S1 | 1.4225 (13) |
C13—H13 | 0.9300 | C30—C30i | 1.341 (14) |
C14—C15 | 1.387 (4) | C30—Cl2i | 1.512 (8) |
C14—H14 | 0.9300 | C30—Cl1i | 1.601 (8) |
C15—H15 | 0.9300 | C30—Cl2 | 1.673 (7) |
C16—C17 | 1.5121 (19) | C30—Cl1 | 1.708 (6) |
C16—H16A | 0.9700 | C30—Cl3 | 1.842 (8) |
C16—H16B | 0.9700 | C30—Cl3i | 2.065 (10) |
C17—C18 | 1.380 (2) | C30—H30A | 0.9600 |
C17—C22 | 1.4028 (18) | Cl1—Cl2i | 0.952 (7) |
C18—C19 | 1.393 (2) | Cl1—C30i | 1.601 (8) |
C18—H18 | 0.9300 | Cl1—Cl3i | 2.054 (8) |
C19—C20 | 1.377 (2) | Cl2—Cl1i | 0.952 (7) |
C19—H19 | 0.9300 | Cl2—C30i | 1.512 (8) |
C20—O3 | 1.3613 (19) | Cl2—Cl3i | 1.871 (8) |
C20—C21 | 1.406 (2) | Cl3—Cl2i | 1.871 (8) |
C21—O4 | 1.3577 (17) | Cl3—Cl1i | 2.054 (8) |
C21—C22 | 1.382 (2) | Cl3—C30i | 2.065 (10) |
C22—H22 | 0.9300 | ||
C3—C2—N1 | 108.14 (11) | C26—C25—H25 | 115.1 |
C3—C2—C16 | 127.64 (12) | C3—C25—H25 | 115.1 |
N1—C2—C16 | 123.93 (12) | C25—C26—C27 | 119.37 (13) |
C2—C3—C4 | 108.30 (12) | C25—C26—H26 | 120.3 |
C2—C3—C25 | 129.64 (12) | C27—C26—H26 | 120.3 |
C4—C3—C25 | 122.05 (12) | O7—C27—O8 | 122.46 (15) |
C5—C4—C9 | 119.96 (12) | O7—C27—C26 | 125.42 (15) |
C5—C4—C3 | 132.26 (13) | O8—C27—C26 | 112.11 (13) |
C9—C4—C3 | 107.78 (11) | O8—C28—C29 | 109.08 (17) |
C6—C5—C4 | 118.49 (14) | O8—C28—H28A | 109.9 |
C6—C5—H5 | 120.8 | C29—C28—H28A | 109.9 |
C4—C5—H5 | 120.8 | O8—C28—H28B | 109.9 |
C5—C6—C7 | 120.58 (13) | C29—C28—H28B | 109.9 |
C5—C6—H6 | 119.7 | H28A—C28—H28B | 108.3 |
C7—C6—H6 | 119.7 | C28—C29—H29A | 109.5 |
C8—C7—C6 | 122.15 (14) | C28—C29—H29B | 109.5 |
C8—C7—H7 | 118.9 | H29A—C29—H29B | 109.5 |
C6—C7—H7 | 118.9 | C28—C29—H29C | 109.5 |
C7—C8—C9 | 116.95 (14) | H29A—C29—H29C | 109.5 |
C7—C8—H8 | 121.5 | H29B—C29—H29C | 109.5 |
C9—C8—H8 | 121.5 | C2—N1—C9 | 108.64 (11) |
C8—C9—C4 | 121.85 (13) | C2—N1—S1 | 128.29 (9) |
C8—C9—N1 | 131.06 (13) | C9—N1—S1 | 122.44 (10) |
C4—C9—N1 | 107.10 (11) | C20—O3—C23 | 116.43 (16) |
C11—C10—C15 | 121.11 (18) | C21—O4—C24 | 117.78 (14) |
C11—C10—S1 | 118.80 (13) | C27—O8—C28 | 115.21 (14) |
C15—C10—S1 | 120.02 (16) | O1—S1—O2 | 120.63 (8) |
C12—C11—C10 | 119.32 (19) | O1—S1—N1 | 106.73 (7) |
C12—C11—H11 | 120.3 | O2—S1—N1 | 105.65 (7) |
C10—C11—H11 | 120.3 | O1—S1—C10 | 108.29 (8) |
C13—C12—C11 | 120.1 (2) | O2—S1—C10 | 108.90 (9) |
C13—C12—H12 | 120.0 | N1—S1—C10 | 105.65 (7) |
C11—C12—H12 | 120.0 | C30i—C30—Cl2i | 71.5 (6) |
C14—C13—C12 | 120.2 (2) | C30i—C30—Cl1i | 70.3 (6) |
C14—C13—H13 | 119.9 | Cl2i—C30—Cl1i | 128.4 (6) |
C12—C13—H13 | 119.9 | C30i—C30—Cl2 | 59.0 (5) |
C13—C14—C15 | 121.2 (2) | Cl2i—C30—Cl2 | 130.5 (5) |
C13—C14—H14 | 119.4 | Cl1i—C30—Cl2 | 33.7 (3) |
C15—C14—H14 | 119.4 | C30i—C30—Cl1 | 62.0 (5) |
C10—C15—C14 | 118.2 (2) | Cl2i—C30—Cl1 | 33.7 (3) |
C10—C15—H15 | 120.9 | Cl1i—C30—Cl1 | 132.3 (4) |
C14—C15—H15 | 120.9 | Cl2—C30—Cl1 | 112.0 (4) |
C2—C16—C17 | 115.26 (11) | C30i—C30—Cl3 | 79.2 (7) |
C2—C16—H16A | 108.5 | Cl2i—C30—Cl3 | 67.0 (4) |
C17—C16—H16A | 108.5 | Cl1i—C30—Cl3 | 72.9 (4) |
C2—C16—H16B | 108.5 | Cl2—C30—Cl3 | 101.7 (5) |
C17—C16—H16B | 108.5 | Cl1—C30—Cl3 | 97.4 (4) |
H16A—C16—H16B | 107.5 | C30i—C30—Cl3i | 61.2 (6) |
C18—C17—C22 | 118.73 (13) | Cl2i—C30—Cl3i | 98.2 (4) |
C18—C17—C16 | 121.92 (12) | Cl1i—C30—Cl3i | 92.5 (4) |
C22—C17—C16 | 119.34 (12) | Cl2—C30—Cl3i | 59.0 (4) |
C17—C18—C19 | 120.84 (13) | Cl1—C30—Cl3i | 65.2 (3) |
C17—C18—H18 | 119.6 | Cl3—C30—Cl3i | 140.4 (4) |
C19—C18—H18 | 119.6 | C30i—C30—H30A | 166.2 |
C20—C19—C18 | 120.44 (14) | Cl2i—C30—H30A | 113.6 |
C20—C19—H19 | 119.8 | Cl1i—C30—H30A | 111.7 |
C18—C19—H19 | 119.8 | Cl2—C30—H30A | 114.6 |
O3—C20—C19 | 125.06 (15) | Cl1—C30—H30A | 114.5 |
O3—C20—C21 | 115.52 (13) | Cl3—C30—H30A | 114.6 |
C19—C20—C21 | 119.42 (13) | Cl3i—C30—H30A | 105.0 |
O4—C21—C22 | 125.01 (14) | Cl2i—Cl1—C30i | 77.3 (4) |
O4—C21—C20 | 115.26 (13) | Cl2i—Cl1—C30 | 61.8 (5) |
C22—C21—C20 | 119.73 (13) | C30i—Cl1—C30 | 47.7 (4) |
C21—C22—C17 | 120.79 (13) | Cl2i—Cl1—Cl3i | 126.3 (5) |
C21—C22—H22 | 119.6 | C30i—Cl1—Cl3i | 59.0 (4) |
C17—C22—H22 | 119.6 | C30—Cl1—Cl3i | 65.8 (3) |
O3—C23—H23A | 109.5 | Cl1i—Cl2—C30i | 84.5 (6) |
O3—C23—H23B | 109.5 | Cl1i—Cl2—C30 | 69.0 (5) |
H23A—C23—H23B | 109.5 | C30i—Cl2—C30 | 49.5 (5) |
O3—C23—H23C | 109.5 | Cl1i—Cl2—Cl3i | 139.6 (5) |
H23A—C23—H23C | 109.5 | C30i—Cl2—Cl3i | 65.0 (4) |
H23B—C23—H23C | 109.5 | C30—Cl2—Cl3i | 71.0 (4) |
O4—C24—H24A | 109.5 | C30—Cl3—Cl2i | 48.0 (3) |
O4—C24—H24B | 109.5 | C30—Cl3—Cl1i | 48.2 (3) |
H24A—C24—H24B | 109.5 | Cl2i—Cl3—Cl1i | 91.0 (3) |
O4—C24—H24C | 109.5 | C30—Cl3—C30i | 39.6 (4) |
H24A—C24—H24C | 109.5 | Cl2i—Cl3—C30i | 50.0 (2) |
H24B—C24—H24C | 109.5 | Cl1i—Cl3—C30i | 49.0 (2) |
C26—C25—C3 | 129.71 (14) | ||
N1—C2—C3—C4 | 0.77 (15) | O7—C27—O8—C28 | −1.2 (3) |
C16—C2—C3—C4 | −173.17 (13) | C26—C27—O8—C28 | 179.76 (18) |
N1—C2—C3—C25 | 179.76 (14) | C29—C28—O8—C27 | 179.7 (2) |
C16—C2—C3—C25 | 5.8 (2) | C2—N1—S1—O1 | 21.70 (15) |
C2—C3—C4—C5 | 178.86 (15) | C9—N1—S1—O1 | −168.44 (11) |
C25—C3—C4—C5 | −0.2 (2) | C2—N1—S1—O2 | 151.24 (13) |
C2—C3—C4—C9 | −1.78 (15) | C9—N1—S1—O2 | −38.90 (14) |
C25—C3—C4—C9 | 179.13 (13) | C2—N1—S1—C10 | −93.43 (13) |
C9—C4—C5—C6 | −1.5 (2) | C9—N1—S1—C10 | 76.43 (13) |
C3—C4—C5—C6 | 177.80 (15) | C11—C10—S1—O1 | −25.83 (15) |
C4—C5—C6—C7 | 0.1 (2) | C15—C10—S1—O1 | 151.37 (15) |
C5—C6—C7—C8 | 1.2 (3) | C11—C10—S1—O2 | −158.70 (13) |
C6—C7—C8—C9 | −1.0 (2) | C15—C10—S1—O2 | 18.50 (18) |
C7—C8—C9—C4 | −0.4 (2) | C11—C10—S1—N1 | 88.22 (14) |
C7—C8—C9—N1 | 179.80 (15) | C15—C10—S1—N1 | −94.58 (16) |
C5—C4—C9—C8 | 1.7 (2) | C30i—C30—Cl1—Cl2i | 98.6 (8) |
C3—C4—C9—C8 | −177.79 (13) | Cl1i—C30—Cl1—Cl2i | 98.6 (8) |
C5—C4—C9—N1 | −178.49 (12) | Cl2—C30—Cl1—Cl2i | 131.0 (6) |
C3—C4—C9—N1 | 2.06 (15) | Cl3—C30—Cl1—Cl2i | 25.1 (6) |
C15—C10—C11—C12 | −0.1 (3) | Cl3i—C30—Cl1—Cl2i | 167.8 (7) |
S1—C10—C11—C12 | 177.03 (15) | Cl2i—C30—Cl1—C30i | −98.6 (8) |
C10—C11—C12—C13 | 0.3 (3) | Cl1i—C30—Cl1—C30i | 0.0 |
C11—C12—C13—C14 | −0.4 (4) | Cl2—C30—Cl1—C30i | 32.3 (5) |
C12—C13—C14—C15 | 0.3 (5) | Cl3—C30—Cl1—C30i | −73.5 (6) |
C11—C10—C15—C14 | 0.1 (3) | Cl3i—C30—Cl1—C30i | 69.2 (6) |
S1—C10—C15—C14 | −177.1 (2) | C30i—C30—Cl1—Cl3i | −69.2 (6) |
C13—C14—C15—C10 | −0.2 (4) | Cl2i—C30—Cl1—Cl3i | −167.8 (7) |
C3—C2—C16—C17 | −103.22 (16) | Cl1i—C30—Cl1—Cl3i | −69.2 (6) |
N1—C2—C16—C17 | 83.73 (16) | Cl2—C30—Cl1—Cl3i | −36.8 (5) |
C2—C16—C17—C18 | 40.18 (19) | Cl3—C30—Cl1—Cl3i | −142.7 (4) |
C2—C16—C17—C22 | −141.19 (13) | C30i—C30—Cl2—Cl1i | −101.1 (8) |
C22—C17—C18—C19 | −1.8 (2) | Cl2i—C30—Cl2—Cl1i | −101.1 (8) |
C16—C17—C18—C19 | 176.82 (13) | Cl1—C30—Cl2—Cl1i | −134.6 (6) |
C17—C18—C19—C20 | 0.4 (2) | Cl3—C30—Cl2—Cl1i | −31.5 (6) |
C18—C19—C20—O3 | −177.63 (16) | Cl3i—C30—Cl2—Cl1i | −174.0 (7) |
C18—C19—C20—C21 | 1.8 (2) | Cl2i—C30—Cl2—C30i | 0.0 |
O3—C20—C21—O4 | −2.2 (2) | Cl1i—C30—Cl2—C30i | 101.1 (8) |
C19—C20—C21—O4 | 178.36 (15) | Cl1—C30—Cl2—C30i | −33.4 (4) |
O3—C20—C21—C22 | 176.88 (15) | Cl3—C30—Cl2—C30i | 69.6 (6) |
C19—C20—C21—C22 | −2.6 (2) | Cl3i—C30—Cl2—C30i | −72.9 (6) |
O4—C21—C22—C17 | −179.85 (14) | C30i—C30—Cl2—Cl3i | 72.9 (6) |
C20—C21—C22—C17 | 1.2 (2) | Cl2i—C30—Cl2—Cl3i | 72.9 (6) |
C18—C17—C22—C21 | 1.0 (2) | Cl1i—C30—Cl2—Cl3i | 174.0 (7) |
C16—C17—C22—C21 | −177.68 (13) | Cl1—C30—Cl2—Cl3i | 39.4 (5) |
C2—C3—C25—C26 | 26.6 (3) | Cl3—C30—Cl2—Cl3i | 142.5 (4) |
C4—C3—C25—C26 | −154.55 (16) | C30i—C30—Cl3—Cl2i | −74.4 (5) |
C3—C25—C26—C27 | 175.66 (15) | Cl1i—C30—Cl3—Cl2i | −146.9 (5) |
C25—C26—C27—O7 | 1.8 (3) | Cl2—C30—Cl3—Cl2i | −129.3 (5) |
C25—C26—C27—O8 | −179.10 (16) | Cl1—C30—Cl3—Cl2i | −14.8 (3) |
C3—C2—N1—C9 | 0.52 (15) | Cl3i—C30—Cl3—Cl2i | −74.4 (5) |
C16—C2—N1—C9 | 174.73 (12) | C30i—C30—Cl3—Cl1i | 72.6 (5) |
C3—C2—N1—S1 | 171.49 (10) | Cl2i—C30—Cl3—Cl1i | 146.9 (5) |
C16—C2—N1—S1 | −14.3 (2) | Cl2—C30—Cl3—Cl1i | 17.7 (3) |
C8—C9—N1—C2 | 178.21 (15) | Cl1—C30—Cl3—Cl1i | 132.1 (4) |
C4—C9—N1—C2 | −1.62 (15) | Cl3i—C30—Cl3—Cl1i | 72.6 (5) |
C8—C9—N1—S1 | 6.6 (2) | Cl2i—C30—Cl3—C30i | 74.4 (5) |
C4—C9—N1—S1 | −173.23 (10) | Cl1i—C30—Cl3—C30i | −72.6 (5) |
C19—C20—O3—C23 | 7.7 (3) | Cl2—C30—Cl3—C30i | −54.9 (5) |
C21—C20—O3—C23 | −171.8 (2) | Cl1—C30—Cl3—C30i | 59.5 (5) |
C22—C21—O4—C24 | 4.9 (3) | Cl3i—C30—Cl3—C30i | 0.000 (1) |
C20—C21—O4—C24 | −176.06 (18) |
Symmetry code: (i) −x+2, −y, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C8—H8···O2 | 0.93 | 2.38 | 2.928 (2) | 118 |
C15—H15···O4ii | 0.93 | 2.53 | 3.411 (3) | 159 |
C16—H16A···O1 | 0.97 | 2.30 | 2.831 (2) | 114 |
C24—H24B···O7iii | 0.96 | 2.51 | 3.461 (2) | 169 |
C24—H24A···O7iv | 0.96 | 2.52 | 3.367 (3) | 147 |
C25—H25···O7 | 0.93 | 2.46 | 2.821 (2) | 103 |
C30—H30A···O3v | 0.96 | 2.59 | 3.429 (7) | 146 |
C30—H30A···O4v | 0.96 | 2.55 | 3.424 (7) | 151 |
Symmetry codes: (ii) x+1, y, z; (iii) x−1, y, z+1; (iv) −x+1, −y+1, −z; (v) x+1, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C28H27NO6S·0.5CHCl3 |
Mr | 565.25 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 10.2154 (3), 12.0504 (4), 12.6310 (4) |
α, β, γ (°) | 70.602 (2), 69.613 (1), 77.056 (2) |
V (Å3) | 1364.39 (7) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.31 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker Kappa APEXII area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2001) |
Tmin, Tmax | 0.913, 0.941 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 38797, 10612, 7709 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.794 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.189, 1.04 |
No. of reflections | 10612 |
No. of parameters | 364 |
No. of restraints | 27 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.73, −0.46 |
Computer programs: APEX2 (Bruker, 2004), SAINT (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 |
C8—H8···O2 | 0.93 | 2.38 | 2.928 (2) | 118 |
C15—H15···O4i | 0.93 | 2.53 | 3.411 (3) | 159 |
C16—H16A···O1 | 0.97 | 2.30 | 2.831 (2) | 114 |
C24—H24B···O7ii | 0.96 | 2.51 | 3.461 (2) | 169 |
C24—H24A···O7iii | 0.96 | 2.52 | 3.367 (3) | 147 |
C25—H25···O7 | 0.93 | 2.46 | 2.821 (2) | 103 |
C30—H30A···O3iv | 0.96 | 2.59 | 3.429 (7) | 146 |
C30—H30A···O4iv | 0.96 | 2.55 | 3.424 (7) | 151 |
Symmetry codes: (i) x+1, y, z; (ii) x−1, y, z+1; (iii) −x+1, −y+1, −z; (iv) x+1, y−1, z. |
Acknowledgements
MT thanks the UGC for financial support in the form of a Research Fellowship in Science for Meritorious Students.
References
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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.
Carboxylic acid indoles act as inhibitors of plasminogen activator inhibitor-1 (Hu et al., 2005). The benzenesulfonamide group attached to the indole ring exhibit significant biological activities, such as antibacterial etc., (Nieto et al., 2005). Also, the indole derivatives are identified as the molecules which interfere with a G protein-independent signaling pathway of the CRTH2 receptor (Mathiesen et al.,2005). N-substituted indole carboxylic acid esters have been prepared as possible cyclo-oxygenase-2 (COX-2) enzyme inhibitors (Olgen & Nebioglu, 2002).
Fig.1 shows the ORTEP plot of the title compound. The indole moiety is planar with the maximum deviation of -0.033 (2)Å and 0.028 (2)Å for atoms C5 and C7, respectively. The indole ring system is oriented equatorially to the phenyl sulfonyl ring [dihedral angle = 78.18 (6)°]. The O—S—O and N—S—C angles [See Table1] deviate significantly from their ideal value due to the Thrope-Ingold effect (Bassindale, 1984). The dimethoxybenzyl group is also equatorially oriented to the planar indole ring, which can be observed from the dihedral angle [78.04 (4)°].
The ethyl acrylate group substituted at C3 position of the indole ring takes up an extented conformation which is evident from the torsion angle values [C25—C26—C27—O8 =] -179.10 (16)°; [C25—C26—C27- O7 =] 1.8 (3)°; [C26—C27—O8—C28 =] 179.8 (2)°; [C29—C28—O8—C27 =] 179.7 (2)°. The sum of the bond angles around N1[359.37°] shows that atom N1 exhibits sp2 hybridization (Beddoes et al., 1986). The chloroform solvent is disordered across inversion centre with the site occupancies of 0.5 for each.
The molecular packing is controlled by intra and intermolecular C—H···O interactions in addition to van der Waals forces (Table 2). Atom H15 of C15 form an intermolecular hydrogen bonding with atom O4, leading to a C11 linear chains (Bernstein et al., 1995) with C—H···O type of interactions running along a-axis. The intermolecular interaction C24—H24A···O7 leads to R22(13) dimers, which are connected through C24—H24B···O7 interaction as closed loops running along c-axis. Intermolecular bifurcated C—H···O hydrogen bonds involving the two oxygen atoms of the dimethoxybenzyl group and the hydrogen atom of the chloroform, solvent generates R12(5) ring motif (Fig.2).