organic compounds
4-[(3-Oxo-1,3-dihydro-2-benzofuran-1-yl)amino]benzoic acid
aSchool of Biology and Chemical Engineering, Nanyang Institute of Technology, Nanyang 473004, People's Republic of China
*Correspondence e-mail: chjdu@yahoo.com.cn
In the title compound, C15H11NO4, the dihedral angle formed by the benzene ring and the essentially planar 2-benzofuran ring system is 55.93 (3)°. In the crystal, intermolecular O—H⋯O hydrogen bonds link pairs of molecules, generating centrosymmetric R22(8) ring motifs. These dimeric units are connected via N—H⋯O hydrogen bonds, forming C(6) chains along [100].
Related literature
For the structure of 2-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)benzoic acid, see: Odabaşoğlu & Büyükgüngör (2008). For the structure of 3-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)benzoic acid, see: Li et al. (2009). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
|
Refinement
|
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: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810048695/lh5161sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810048695/lh5161Isup2.hkl
4-aminobenzoic acid (5.00 mmol) and 2-formylbenzoic acid (5.00 mmol) were added to an ethanol (35 ml) and DMF (15 ml) mix. The mixture was stirred at 353 K for 5 h. The resulting clear solution was evaporated under vacuum. The product was crystallized from a solution of DMF/methanol(1:1) yielding the title compound. Anal. yield: ca 98.6%. Single crystals suitable for X-ray analysis were obtained within one week by slow evaporation of a DMF/methanol (1:3) solution of the title compound.
All H atoms were placed in idealized positions (C—H = 0.93 or 0.98 Å, N—H = 0.88 Å and O—H = 0.86 Å), and constrained to ride on the atom to which they are bonded, and were included in the
in the riding-model approximation. Uiso(H) values were set equal to 1.5Ueq(parent atom) for carboxyl and the secondary amine H atom and to 1.2Ueq(parent atom) for all other H atoms.The molecular structure of the title compound is shown in Fig. 1. The dihedral angle formed by the benzene ring and the essentially planar isobenzofuran ring system is 55.93 (3)°. In the crystal, intermolecular O—H···O hydrogen bonds link pairs of molecules, generating centrosymmetric R22(8) ring motifs. These dimeric units are connected via N—H···O hydrogen bonds forming C(6) chains along [100] (see Fig. 2). The crystal structures of 2-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)benzoic acid (Odabaşoğlu & Büyükgüngör, 2008) and 3-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)benzoic (Li et al.(2009) have been published previously.
For the structure of 2-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)benzoic acid, see: Odabaşoğlu & Büyükgüngör (2008). For the structure of 3-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)benzoic acid, see: Li et al. (2009). For hydrogen-bond motifs, see: Bernstein et al. (1995).
For related literature, see: Odabaşoğlu & Büyükgüngör (2008).
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: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of the title compound with 50% probability displacement ellipsoids. | |
Fig. 2. Part of the crystal structure with hydrogen bonds shown as dashed lines. |
C15H11NO4 | Z = 2 |
Mr = 269.25 | F(000) = 280 |
Triclinic, P1 | Dx = 1.450 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 5.9727 (18) Å | Cell parameters from 3521 reflections |
b = 6.987 (2) Å | θ = 2.7–27.8° |
c = 15.451 (5) Å | µ = 0.11 mm−1 |
α = 78.135 (3)° | T = 296 K |
β = 87.217 (3)° | Block, colorless |
γ = 77.804 (3)° | 0.21 × 0.16 × 0.11 mm |
V = 616.8 (3) Å3 |
Bruker APEXII CCD diffractometer | 2213 independent reflections |
Radiation source: fine-focus sealed tube | 1971 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.015 |
φ and ω scans | θmax = 25.2°, θmin = 2.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −7→7 |
Tmin = 0.98, Tmax = 0.988 | k = −8→8 |
5940 measured reflections | l = −18→18 |
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)] = 0.035 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.101 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0516P)2 + 0.1431P] where P = (Fo2 + 2Fc2)/3 |
2213 reflections | (Δ/σ)max < 0.001 |
182 parameters | Δρmax = 0.21 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
C15H11NO4 | γ = 77.804 (3)° |
Mr = 269.25 | V = 616.8 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 5.9727 (18) Å | Mo Kα radiation |
b = 6.987 (2) Å | µ = 0.11 mm−1 |
c = 15.451 (5) Å | T = 296 K |
α = 78.135 (3)° | 0.21 × 0.16 × 0.11 mm |
β = 87.217 (3)° |
Bruker APEXII CCD diffractometer | 2213 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1971 reflections with I > 2σ(I) |
Tmin = 0.98, Tmax = 0.988 | Rint = 0.015 |
5940 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 0 restraints |
wR(F2) = 0.101 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.21 e Å−3 |
2213 reflections | Δρmin = −0.26 e Å−3 |
182 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 | 0.5514 (2) | 1.2253 (2) | 0.06142 (9) | 0.0419 (3) | |
C2 | 0.5971 (2) | 1.0142 (2) | 0.10724 (9) | 0.0380 (3) | |
C3 | 0.4306 (2) | 0.9320 (2) | 0.15965 (10) | 0.0413 (3) | |
H3 | 0.2840 | 1.0090 | 0.1624 | 0.050* | |
C4 | 0.4797 (2) | 0.7390 (2) | 0.20729 (10) | 0.0409 (3) | |
H4 | 0.3668 | 0.6872 | 0.2422 | 0.049* | |
C5 | 0.6981 (2) | 0.62056 (19) | 0.20341 (9) | 0.0363 (3) | |
C6 | 0.8628 (2) | 0.6997 (2) | 0.14808 (9) | 0.0440 (4) | |
H6 | 1.0072 | 0.6210 | 0.1428 | 0.053* | |
C7 | 0.8119 (3) | 0.8932 (2) | 0.10154 (9) | 0.0443 (4) | |
H7 | 0.9235 | 0.9443 | 0.0655 | 0.053* | |
C8 | 0.9645 (2) | 0.3035 (2) | 0.25671 (9) | 0.0403 (3) | |
H8 | 1.0056 | 0.2839 | 0.1965 | 0.048* | |
C9 | 0.9832 (2) | 0.10315 (19) | 0.31764 (9) | 0.0389 (3) | |
C10 | 0.8538 (3) | −0.0406 (2) | 0.32249 (10) | 0.0498 (4) | |
H10 | 0.7294 | −0.0204 | 0.2854 | 0.060* | |
C11 | 0.9156 (3) | −0.2158 (2) | 0.38446 (11) | 0.0581 (4) | |
H11 | 0.8300 | −0.3144 | 0.3894 | 0.070* | |
C12 | 1.1024 (3) | −0.2478 (2) | 0.43950 (11) | 0.0573 (4) | |
H12 | 1.1423 | −0.3685 | 0.4795 | 0.069* | |
C13 | 1.2293 (3) | −0.1033 (2) | 0.43565 (10) | 0.0495 (4) | |
H13 | 1.3534 | −0.1229 | 0.4729 | 0.059* | |
C14 | 1.1648 (2) | 0.0728 (2) | 0.37402 (9) | 0.0397 (3) | |
C15 | 1.2613 (2) | 0.2526 (2) | 0.35724 (10) | 0.0433 (3) | |
N1 | 0.7473 (2) | 0.43002 (16) | 0.25574 (8) | 0.0417 (3) | |
H1 | 0.6533 | 0.4023 | 0.3003 | 0.063* | |
H1A | 0.3357 | 1.4504 | 0.0381 | 0.063* | |
O1 | 0.35440 (19) | 1.33180 (15) | 0.06907 (8) | 0.0583 (3) | |
O2 | 0.7119 (2) | 1.29313 (16) | 0.01765 (8) | 0.0654 (4) | |
O3 | 1.14390 (17) | 0.38706 (15) | 0.29107 (7) | 0.0478 (3) | |
O4 | 1.41808 (19) | 0.28973 (18) | 0.39302 (8) | 0.0595 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0449 (8) | 0.0338 (7) | 0.0402 (7) | −0.0024 (6) | 0.0006 (6) | 0.0019 (6) |
C2 | 0.0421 (7) | 0.0327 (7) | 0.0344 (7) | −0.0034 (6) | −0.0009 (6) | 0.0000 (5) |
C3 | 0.0338 (7) | 0.0347 (7) | 0.0503 (8) | −0.0015 (6) | −0.0016 (6) | −0.0019 (6) |
C4 | 0.0346 (7) | 0.0359 (7) | 0.0488 (8) | −0.0088 (6) | 0.0014 (6) | 0.0006 (6) |
C5 | 0.0402 (7) | 0.0292 (7) | 0.0368 (7) | −0.0060 (5) | −0.0035 (5) | −0.0006 (5) |
C6 | 0.0398 (8) | 0.0375 (8) | 0.0440 (8) | 0.0031 (6) | 0.0058 (6) | 0.0033 (6) |
C7 | 0.0433 (8) | 0.0399 (8) | 0.0399 (7) | −0.0030 (6) | 0.0079 (6) | 0.0068 (6) |
C8 | 0.0446 (8) | 0.0325 (7) | 0.0387 (7) | −0.0034 (6) | −0.0005 (6) | −0.0004 (6) |
C9 | 0.0472 (8) | 0.0300 (7) | 0.0355 (7) | −0.0018 (6) | 0.0008 (6) | −0.0040 (5) |
C10 | 0.0656 (10) | 0.0345 (7) | 0.0491 (8) | −0.0105 (7) | −0.0088 (7) | −0.0058 (6) |
C11 | 0.0833 (12) | 0.0326 (8) | 0.0593 (10) | −0.0185 (8) | −0.0057 (9) | −0.0037 (7) |
C12 | 0.0818 (12) | 0.0324 (8) | 0.0495 (9) | −0.0058 (8) | −0.0033 (8) | 0.0052 (6) |
C13 | 0.0547 (9) | 0.0407 (8) | 0.0443 (8) | −0.0007 (7) | −0.0043 (7) | 0.0027 (6) |
C14 | 0.0408 (7) | 0.0351 (7) | 0.0377 (7) | −0.0013 (6) | 0.0033 (6) | −0.0025 (6) |
C15 | 0.0363 (7) | 0.0413 (8) | 0.0451 (8) | −0.0034 (6) | 0.0035 (6) | 0.0025 (6) |
N1 | 0.0402 (6) | 0.0314 (6) | 0.0459 (7) | −0.0041 (5) | 0.0018 (5) | 0.0055 (5) |
O1 | 0.0537 (7) | 0.0341 (6) | 0.0706 (8) | 0.0054 (5) | 0.0083 (6) | 0.0104 (5) |
O2 | 0.0602 (7) | 0.0409 (6) | 0.0777 (8) | −0.0019 (5) | 0.0204 (6) | 0.0142 (6) |
O3 | 0.0423 (6) | 0.0378 (5) | 0.0561 (6) | −0.0092 (4) | −0.0037 (5) | 0.0091 (4) |
O4 | 0.0455 (6) | 0.0632 (7) | 0.0657 (7) | −0.0194 (5) | −0.0085 (5) | 0.0068 (6) |
C1—O2 | 1.2640 (18) | C8—H8 | 0.9800 |
C1—O1 | 1.2670 (17) | C9—C14 | 1.378 (2) |
C1—C2 | 1.4736 (19) | C9—C10 | 1.379 (2) |
C2—C7 | 1.389 (2) | C10—C11 | 1.383 (2) |
C2—C3 | 1.395 (2) | C10—H10 | 0.9300 |
C3—C4 | 1.3755 (19) | C11—C12 | 1.388 (3) |
C3—H3 | 0.9300 | C11—H11 | 0.9300 |
C4—C5 | 1.395 (2) | C12—C13 | 1.375 (2) |
C4—H4 | 0.9300 | C12—H12 | 0.9300 |
C5—N1 | 1.3884 (17) | C13—C14 | 1.387 (2) |
C5—C6 | 1.399 (2) | C13—H13 | 0.9300 |
C6—C7 | 1.3729 (19) | C14—C15 | 1.462 (2) |
C6—H6 | 0.9300 | C15—O4 | 1.2086 (18) |
C7—H7 | 0.9300 | C15—O3 | 1.3476 (17) |
C8—N1 | 1.4054 (18) | N1—H1 | 0.8837 |
C8—O3 | 1.4892 (18) | O1—H1A | 0.8551 |
C8—C9 | 1.5037 (19) | ||
O2—C1—O1 | 122.93 (13) | C14—C9—C10 | 120.58 (13) |
O2—C1—C2 | 118.54 (13) | C14—C9—C8 | 109.02 (12) |
O1—C1—C2 | 118.52 (12) | C10—C9—C8 | 130.40 (13) |
C7—C2—C3 | 118.18 (12) | C9—C10—C11 | 117.69 (15) |
C7—C2—C1 | 120.29 (13) | C9—C10—H10 | 121.2 |
C3—C2—C1 | 121.49 (12) | C11—C10—H10 | 121.2 |
C4—C3—C2 | 121.09 (13) | C10—C11—C12 | 121.48 (15) |
C4—C3—H3 | 119.5 | C10—C11—H11 | 119.3 |
C2—C3—H3 | 119.5 | C12—C11—H11 | 119.3 |
C3—C4—C5 | 120.32 (12) | C13—C12—C11 | 120.85 (14) |
C3—C4—H4 | 119.8 | C13—C12—H12 | 119.6 |
C5—C4—H4 | 119.8 | C11—C12—H12 | 119.6 |
N1—C5—C4 | 119.29 (12) | C12—C13—C14 | 117.30 (15) |
N1—C5—C6 | 121.97 (12) | C12—C13—H13 | 121.3 |
C4—C5—C6 | 118.73 (12) | C14—C13—H13 | 121.3 |
C7—C6—C5 | 120.26 (13) | C9—C14—C13 | 122.06 (14) |
C7—C6—H6 | 119.9 | C9—C14—C15 | 108.59 (12) |
C5—C6—H6 | 119.9 | C13—C14—C15 | 129.34 (14) |
C6—C7—C2 | 121.32 (13) | O4—C15—O3 | 121.22 (13) |
C6—C7—H7 | 119.3 | O4—C15—C14 | 129.98 (13) |
C2—C7—H7 | 119.3 | O3—C15—C14 | 108.80 (12) |
N1—C8—O3 | 111.92 (11) | C5—N1—C8 | 122.57 (12) |
N1—C8—C9 | 114.49 (12) | C5—N1—H1 | 117.3 |
O3—C8—C9 | 102.61 (11) | C8—N1—H1 | 117.7 |
N1—C8—H8 | 109.2 | C1—O1—H1A | 114.1 |
O3—C8—H8 | 109.2 | C15—O3—C8 | 110.77 (11) |
C9—C8—H8 | 109.2 | ||
O2—C1—C2—C7 | −0.4 (2) | C10—C11—C12—C13 | 1.7 (3) |
O1—C1—C2—C7 | −179.08 (14) | C11—C12—C13—C14 | −0.9 (2) |
O2—C1—C2—C3 | 177.30 (14) | C10—C9—C14—C13 | 1.9 (2) |
O1—C1—C2—C3 | −1.3 (2) | C8—C9—C14—C13 | −177.47 (13) |
C7—C2—C3—C4 | 2.5 (2) | C10—C9—C14—C15 | −176.90 (13) |
C1—C2—C3—C4 | −175.24 (13) | C8—C9—C14—C15 | 3.73 (15) |
C2—C3—C4—C5 | −0.5 (2) | C12—C13—C14—C9 | −0.8 (2) |
C3—C4—C5—N1 | 176.53 (13) | C12—C13—C14—C15 | 177.69 (14) |
C3—C4—C5—C6 | −2.1 (2) | C9—C14—C15—O4 | 178.44 (15) |
N1—C5—C6—C7 | −175.90 (14) | C13—C14—C15—O4 | −0.2 (3) |
C4—C5—C6—C7 | 2.7 (2) | C9—C14—C15—O3 | −1.20 (16) |
C5—C6—C7—C2 | −0.7 (2) | C13—C14—C15—O3 | −179.88 (14) |
C3—C2—C7—C6 | −2.0 (2) | C4—C5—N1—C8 | −178.74 (12) |
C1—C2—C7—C6 | 175.86 (13) | C6—C5—N1—C8 | −0.2 (2) |
N1—C8—C9—C14 | −126.09 (13) | O3—C8—N1—C5 | 63.86 (17) |
O3—C8—C9—C14 | −4.61 (14) | C9—C8—N1—C5 | −179.92 (12) |
N1—C8—C9—C10 | 54.6 (2) | O4—C15—O3—C8 | 178.43 (13) |
O3—C8—C9—C10 | 176.11 (14) | C14—C15—O3—C8 | −1.89 (15) |
C14—C9—C10—C11 | −1.1 (2) | N1—C8—O3—C15 | 127.16 (12) |
C8—C9—C10—C11 | 178.09 (14) | C9—C8—O3—C15 | 3.93 (14) |
C9—C10—C11—C12 | −0.6 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O4i | 0.88 | 2.11 | 2.9802 (17) | 168 |
O1—H1A···O2ii | 0.86 | 1.79 | 2.6438 (16) | 175 |
Symmetry codes: (i) x−1, y, z; (ii) −x+1, −y+3, −z. |
Experimental details
Crystal data | |
Chemical formula | C15H11NO4 |
Mr | 269.25 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 5.9727 (18), 6.987 (2), 15.451 (5) |
α, β, γ (°) | 78.135 (3), 87.217 (3), 77.804 (3) |
V (Å3) | 616.8 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.21 × 0.16 × 0.11 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.98, 0.988 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5940, 2213, 1971 |
Rint | 0.015 |
(sin θ/λ)max (Å−1) | 0.599 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.101, 1.05 |
No. of reflections | 2213 |
No. of parameters | 182 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.21, −0.26 |
Computer programs: APEX2 (Bruker (2004), SAINT (Bruker (2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O4i | 0.88 | 2.11 | 2.9802 (17) | 168.0 |
O1—H1A···O2ii | 0.86 | 1.79 | 2.6438 (16) | 174.8 |
Symmetry codes: (i) x−1, y, z; (ii) −x+1, −y+3, −z. |
References
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 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Li, W., Yin, H., Wen, L., Li, K. & Fan, W. (2009). Acta Cryst. E65, o2579. Web of Science CSD CrossRef IUCr Journals Google Scholar
Odabaşoğlu, M. & Büyükgüngör, O. (2008). Acta Cryst. E64, o752–o753. Web of Science 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
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.
The molecular structure of the title compound is shown in Fig. 1. The dihedral angle formed by the benzene ring and the essentially planar isobenzofuran ring system is 55.93 (3)°. In the crystal, intermolecular O—H···O hydrogen bonds link pairs of molecules, generating centrosymmetric R22(8) ring motifs. These dimeric units are connected via N—H···O hydrogen bonds forming C(6) chains along [100] (see Fig. 2). The crystal structures of 2-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)benzoic acid (Odabaşoğlu & Büyükgüngör, 2008) and 3-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)benzoic (Li et al.(2009) have been published previously.