Literature DB >> 23476455

2-[(3-Oxo-1-benzofuran-6-yl)-oxy]aceto-nitrile.

Henok H Kinfe1, Yonas H Belay, Zanele H Phasha.   

Abstract

The mol-ecule of the title compound, C11H8O3, is essentially planar [r.m.s. deviation = 0.025 (2) Å]. In the crystal, mol-ecules are stacked along [110] but no short π-π contacts are observed. Weak C-H⋯O inter-actions link the mol-ecules into chains along [101].

Entities:  

Year:  2012        PMID: 23476455      PMCID: PMC3588257          DOI: 10.1107/S1600536812048441

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For background to the development of hybrid drug candidates against tuberculosis, malaria and cancer, see: Morphy et al. (2004 ▶). For the synthesis of the title compound, see: Hoogendoorn et al. (2011 ▶).

Experimental

Crystal data

C11H8O3 M = 188.17 Monoclinic, a = 16.8785 (5) Å b = 5.4202 (2) Å c = 19.6107 (6) Å β = 91.469 (2)° V = 1793.49 (10) Å3 Z = 8 Cu Kα radiation μ = 0.85 mm−1 T = 100 K 0.19 × 0.15 × 0.11 mm

Data collection

Bruker APEX DUO 4K CCD diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2008 ▶) T min = 0.855, T max = 0.912 10685 measured reflections 1545 independent reflections 1451 reflections with I > 2σ(I) R int = 0.026

Refinement

R[F 2 > 2σ(F 2)] = 0.030 wR(F 2) = 0.076 S = 1.04 1545 reflections 127 parameters H-atom parameters constrained Δρmax = 0.18 e Å−3 Δρmin = −0.13 e Å−3 Data collection: APEX2 (Bruker, 2011 ▶); cell refinement: SAINT (Bruker, 2008 ▶); data reduction: SAINT and XPREP (Bruker, 2008 ▶); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012 ▶); software used to prepare material for publication: WinGX (Farrugia, 2012 ▶). Click here for additional data file. Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S1600536812048441/ld2084sup1.cif Click here for additional data file. Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536812048441/ld2084Isup2.hkl Click here for additional data file. Supplementary material file. DOI: 10.1107/S1600536812048441/ld2084Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C11H8O3F(000) = 784
Mr = 188.17Dx = 1.394 Mg m3
Monoclinic, C2/cCu Kα radiation, λ = 1.54178 Å
Hall symbol: -C 2ycCell parameters from 6173 reflections
a = 16.8785 (5) Åθ = 6.8–65.7°
b = 5.4202 (2) ŵ = 0.85 mm1
c = 19.6107 (6) ÅT = 100 K
β = 91.469 (2)°Cube, yellow
V = 1793.49 (10) Å30.19 × 0.15 × 0.11 mm
Z = 8
Bruker APEX DUO 4K CCD diffractometer1545 independent reflections
Incoatec Quazar Multilayer Mirror monochromator1451 reflections with I > 2σ(I)
Detector resolution: 8.4 pixels mm-1Rint = 0.026
φ and ω scansθmax = 66.2°, θmin = 6.8°
Absorption correction: multi-scan (SADABS; Bruker, 2008)h = −19→18
Tmin = 0.855, Tmax = 0.912k = −6→6
10685 measured reflectionsl = −22→23
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.030Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.076H-atom parameters constrained
S = 1.04w = 1/[σ2(Fo2) + (0.0326P)2 + 1.2605P] where P = (Fo2 + 2Fc2)/3
1545 reflections(Δ/σ)max < 0.001
127 parametersΔρmax = 0.18 e Å3
0 restraintsΔρmin = −0.13 e Å3
Experimental. The intensity data was collected on a Bruker Apex DUO 4 K CCD diffractometer using an exposure time of 5 s/frame. A total of 2405 frames were collected with a frame width of 1° covering up to θ = 66.21° with 98.0% completeness accomplished.
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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.
xyzUiso*/Ueq
C10.33402 (7)−0.0134 (2)0.16647 (6)0.0301 (3)
H1A0.39080.01770.15820.036*
H1B0.33−0.13660.20350.036*
C20.29260 (7)0.2247 (2)0.18581 (6)0.0275 (3)
C30.22985 (7)0.2558 (2)0.13478 (6)0.0258 (3)
C40.23445 (6)0.0603 (2)0.08957 (6)0.0252 (3)
C50.18383 (6)0.0313 (2)0.03363 (6)0.0256 (3)
H50.188−0.10420.00320.031*
C60.12641 (6)0.2130 (2)0.02471 (6)0.0253 (3)
C70.12021 (7)0.4147 (2)0.06963 (6)0.0275 (3)
H70.08020.53540.06180.033*
C80.17159 (7)0.4373 (2)0.12444 (6)0.0277 (3)
H8A0.16780.57310.15480.033*
C90.07331 (7)0.0050 (2)−0.07344 (6)0.0281 (3)
H9A0.0623−0.1496−0.04850.034*
H9B0.1263−0.009−0.09360.034*
C100.01328 (7)0.0443 (2)−0.12691 (6)0.0295 (3)
C11−0.03534 (7)0.0700 (2)−0.17094 (6)0.0340 (3)
H11−0.07440.0906−0.20630.041*
O10.31189 (5)0.35618 (16)0.23405 (4)0.0328 (2)
O20.29422 (5)−0.10199 (15)0.10488 (4)0.0296 (2)
O30.07151 (5)0.21196 (15)−0.02749 (4)0.0289 (2)
U11U22U33U12U13U23
C10.0269 (6)0.0336 (7)0.0295 (6)0.0015 (5)−0.0041 (5)0.0012 (5)
C20.0270 (6)0.0289 (6)0.0265 (6)−0.0038 (5)0.0012 (5)0.0022 (5)
C30.0264 (6)0.0253 (6)0.0257 (6)−0.0028 (5)0.0015 (4)0.0019 (5)
C40.0226 (5)0.0245 (6)0.0285 (6)0.0000 (4)0.0032 (4)0.0043 (5)
C50.0262 (6)0.0246 (6)0.0261 (6)−0.0008 (5)0.0029 (4)−0.0001 (5)
C60.0243 (6)0.0269 (6)0.0248 (6)−0.0023 (5)0.0010 (4)0.0040 (5)
C70.0288 (6)0.0236 (6)0.0303 (6)0.0022 (5)−0.0001 (5)0.0025 (5)
C80.0313 (6)0.0232 (6)0.0288 (6)−0.0003 (5)0.0018 (5)−0.0001 (5)
C90.0276 (6)0.0295 (6)0.0273 (6)0.0010 (5)0.0016 (5)−0.0016 (5)
C100.0279 (6)0.0311 (6)0.0296 (6)−0.0003 (5)0.0047 (5)−0.0010 (5)
C110.0297 (6)0.0418 (7)0.0304 (6)0.0012 (5)−0.0018 (5)−0.0021 (5)
O10.0324 (5)0.0349 (5)0.0307 (5)−0.0012 (4)−0.0048 (3)−0.0026 (4)
O20.0273 (4)0.0297 (5)0.0316 (4)0.0052 (3)−0.0036 (3)−0.0019 (3)
O30.0288 (4)0.0298 (4)0.0278 (4)0.0034 (3)−0.0046 (3)−0.0026 (3)
C1—O21.4489 (14)C6—O31.3631 (13)
C1—C21.5206 (17)C6—C71.4095 (16)
C1—H1A0.99C7—C81.3691 (17)
C1—H1B0.99C7—H70.95
C2—O11.2220 (14)C8—H8A0.95
C2—C31.4481 (16)C9—O31.4396 (14)
C3—C41.3851 (16)C9—C101.4551 (16)
C3—C81.4021 (17)C9—H9A0.99
C4—O21.3661 (14)C9—H9B0.99
C4—C51.3822 (16)C10—C111.1840 (17)
C5—C61.3896 (16)C11—H110.95
C5—H50.95
O2—C1—C2106.42 (9)O3—C6—C7114.37 (10)
O2—C1—H1A110.4C5—C6—C7122.25 (10)
C2—C1—H1A110.4C8—C7—C6120.30 (11)
O2—C1—H1B110.4C8—C7—H7119.8
C2—C1—H1B110.4C6—C7—H7119.8
H1A—C1—H1B108.6C7—C8—C3118.58 (11)
O1—C2—C3129.99 (11)C7—C8—H8A120.7
O1—C2—C1124.96 (11)C3—C8—H8A120.7
C3—C2—C1105.04 (9)O3—C9—C10108.15 (9)
C4—C3—C8119.66 (10)O3—C9—H9A110.1
C4—C3—C2107.53 (10)C10—C9—H9A110.1
C8—C3—C2132.81 (11)O3—C9—H9B110.1
O2—C4—C5122.62 (10)C10—C9—H9B110.1
O2—C4—C3113.91 (10)H9A—C9—H9B108.4
C5—C4—C3123.47 (11)C11—C10—C9178.27 (13)
C4—C5—C6115.74 (11)C10—C11—H11180
C4—C5—H5122.1C4—O2—C1107.09 (9)
C6—C5—H5122.1C6—O3—C9116.64 (9)
O3—C6—C5123.37 (10)
O2—C1—C2—O1−177.45 (10)C4—C5—C6—C70.20 (16)
O2—C1—C2—C31.34 (12)O3—C6—C7—C8179.74 (10)
O1—C2—C3—C4177.78 (12)C5—C6—C7—C8−0.07 (17)
C1—C2—C3—C4−0.93 (12)C6—C7—C8—C3−0.23 (17)
O1—C2—C3—C8−1.2 (2)C4—C3—C8—C70.40 (16)
C1—C2—C3—C8−179.91 (12)C2—C3—C8—C7179.28 (11)
C8—C3—C4—O2179.30 (10)C5—C4—O2—C1−179.70 (10)
C2—C3—C4—O20.16 (13)C3—C4—O2—C10.73 (12)
C8—C3—C4—C5−0.27 (17)C2—C1—O2—C4−1.26 (12)
C2—C3—C4—C5−179.41 (10)C5—C6—O3—C92.07 (15)
O2—C4—C5—C6−179.56 (10)C7—C6—O3—C9−177.74 (9)
C3—C4—C5—C6−0.03 (16)C10—C9—O3—C6−177.25 (9)
C4—C5—C6—O3−179.59 (10)
D—H···AD—HH···AD···AD—H···A
C11—H11···O1i0.952.243.1676 (15)165
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯A D—HH⋯A DA D—H⋯A
C11—H11⋯O1i 0.952.243.1676 (15)165

Symmetry code: (i) .

  3 in total

Review 1.  From magic bullets to designed multiple ligands.

Authors:  Richard Morphy; Corinne Kay; Zoran Rankovic
Journal:  Drug Discov Today       Date:  2004-08-01       Impact factor: 7.851

2.  Synthesis of pH-activatable red fluorescent BODIPY dyes with distinct functionalities.

Authors:  Sascha Hoogendoorn; Annet E M Blom; Lianne I Willems; Gijsbert A van der Marel; Herman S Overkleeft
Journal:  Org Lett       Date:  2011-09-26       Impact factor: 6.005

3.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

  3 in total

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