organic compounds
Methyl 2-(p-toluenesulfonamido)benzoate
aDepartment of Materials Science and Engineering, University of Jinan, Jinan 250022, People's Republic of China, bSchool of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, People's Republic of China, and cDepartment of Materials Science and Chemical Engineering, Taishan University, Taishan 271021, People's Republic of China
*Correspondence e-mail: 153725248@163.com
The title compound, C15H15NO4S, was prepared by simple condensation of methyl 2-aminobenzoate and 4-methylbenzenesulfonyl chloride. The dihedral angle between the benzene rings is 84.36 (6)°. The molecular structure is stabilized by an intramolecular N—H⋯O hydrogen-bonding interaction involving the carbonyl group as acceptor, generating an S(6) graph-set motif.
Related literature
For background information on sulfonamide derivatives and their properties, see: Sheppard et al. (2006). For similar structures, see: Schultz et al. (2001); Krishnaiah et al. (1995); Arshad, Khan, Shafiq et al. (2009); Arshad, Khan, Akkurt et al. (2009); Xiong et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810000814/bh2263sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810000814/bh2263Isup2.hkl
Methyl 2-aminobenzoate (5 mmol) was dissolved in tetrahydrofuran (10 ml) in a round bottom flask (50 ml). The pH of the solution was maintained at 7–8 using Et3N. 4-Toluene sulfonyl chloride (6 mmol) was suspended to the above solution and refluxed until all the 4-toluene sulfonyl chloride was consumed. After removal of the solvent, water (20 ml) was added to the residue. Then the mixture was extracted with CH2Cl2, and the organic layer was dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure. Further purification was carried out by recrystallization in ethanol to give a solid (yield 83.7%). Single crystals suitable for X-ray analysis were obtained by diffusion of n-hexane in an ethanol solution.
All C-bonded H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H = 0.93 (aromatic) or 0.96 Å (methyl). Amine H atom H1 was found in a difference map, and its position fixed in final cycles. Isotropic displacement parameters for H atoms were calculated as Uiso(H) = 1.5Ueq(carrier C, N) for methyl H atoms and H1, and Uiso(H) = 1.2Ueq(carrier C) for others.
Sulfur-containing compounds, such as sulfates,
and can exhibit insecticidal, germicidal or antimicrobial activities (Schultz et al., 2001; Krishnaiah et al., 1995; Arshad, Khan, Shafiq et al., 2009; Xiong et al., 2007). Particularly, the are biologically active organic compounds, which have been investigated as inhibitors of methionine aminopeptidase-2 (MetAP2) and intermediates for cancer therapy (Sheppard et al., 2006). In order to obtain detailed information on the the X-ray study of the title sulfonamide has been carried out, and the results are presented here.As is shown in Fig. 1, the two benzene rings are approximately orthogonal, the dihedral angle between their planes being 84.36 (6)°. In addition to van der Waals interactions, there is an intramolecular N—H···O hydrogen bond which generates a graph set motif S(6) (Arshad, Khan, Akkurt et al., 2009) to stabilize the
(Fig. 1 and Table 1).For background information on sulfonamide derivatives and their properties, see: Sheppard et al. (2006). For similar structures, see: Schultz et al. (2001); Krishnaiah et al. (1995); Arshad, Khan, Shafiq et al. (2009); Arshad, Khan, Akkurt et al. (2009); Xiong et al. (2007).
Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The structure of the title compound with 30% probability ellipsoids. H atoms are shown as spheres of arbitrary radii. The dashed line represents a hydrogen bond. |
C15H15NO4S | F(000) = 640 |
Mr = 305.34 | Dx = 1.360 Mg m−3 |
Monoclinic, P21/c | Melting point: 380 K |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 15.0129 (13) Å | Cell parameters from 3425 reflections |
b = 8.3593 (7) Å | θ = 2.3–27.0° |
c = 11.9664 (11) Å | µ = 0.23 mm−1 |
β = 96.854 (2)° | T = 295 K |
V = 1491.0 (2) Å3 | Block, colourless |
Z = 4 | 0.24 × 0.16 × 0.14 mm |
Bruker APEXII area-detector diffractometer | 2639 independent reflections |
Radiation source: fine-focus sealed tube | 2230 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
φ and ω scans | θmax = 25.1°, θmin = 2.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −16→17 |
Tmin = 0.947, Tmax = 0.968 | k = −9→9 |
7663 measured reflections | l = −14→9 |
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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.102 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0512P)2 + 0.3683P] where P = (Fo2 + 2Fc2)/3 |
2639 reflections | (Δ/σ)max = 0.001 |
191 parameters | Δρmax = 0.15 e Å−3 |
0 restraints | Δρmin = −0.32 e Å−3 |
C15H15NO4S | V = 1491.0 (2) Å3 |
Mr = 305.34 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 15.0129 (13) Å | µ = 0.23 mm−1 |
b = 8.3593 (7) Å | T = 295 K |
c = 11.9664 (11) Å | 0.24 × 0.16 × 0.14 mm |
β = 96.854 (2)° |
Bruker APEXII area-detector diffractometer | 2639 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2230 reflections with I > 2σ(I) |
Tmin = 0.947, Tmax = 0.968 | Rint = 0.024 |
7663 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.102 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.15 e Å−3 |
2639 reflections | Δρmin = −0.32 e Å−3 |
191 parameters |
x | y | z | Uiso*/Ueq | ||
S1 | 0.78611 (3) | 0.16418 (5) | 0.77097 (4) | 0.04976 (17) | |
O1 | 0.56582 (10) | 0.0349 (2) | 0.36179 (12) | 0.0866 (5) | |
O2 | 0.61287 (10) | 0.2115 (2) | 0.49515 (14) | 0.0784 (4) | |
O3 | 0.80078 (9) | 0.05619 (17) | 0.86305 (10) | 0.0642 (4) | |
O4 | 0.76453 (10) | 0.32689 (16) | 0.79146 (12) | 0.0677 (4) | |
N1 | 0.70193 (9) | 0.10160 (18) | 0.68303 (13) | 0.0536 (4) | |
H1 | 0.6798 | 0.1762 | 0.6367 | 0.082 (7)* | |
C1 | 0.52814 (17) | 0.1643 (4) | 0.2920 (2) | 0.1100 (11) | |
H1A | 0.4763 | 0.2057 | 0.3221 | 0.165* | |
H1B | 0.5111 | 0.1258 | 0.2169 | 0.165* | |
H1C | 0.5720 | 0.2477 | 0.2906 | 0.165* | |
C2 | 0.60786 (12) | 0.0751 (3) | 0.46213 (17) | 0.0623 (5) | |
C3 | 0.64536 (11) | −0.0668 (2) | 0.52490 (15) | 0.0524 (4) | |
C4 | 0.69256 (10) | −0.0513 (2) | 0.63324 (14) | 0.0474 (4) | |
C5 | 0.72532 (13) | −0.1874 (2) | 0.68995 (18) | 0.0604 (5) | |
H5 | 0.7568 | −0.1781 | 0.7615 | 0.072* | |
C6 | 0.71195 (15) | −0.3359 (2) | 0.6419 (2) | 0.0748 (6) | |
H6 | 0.7343 | −0.4261 | 0.6812 | 0.090* | |
C7 | 0.66594 (16) | −0.3525 (3) | 0.5364 (2) | 0.0810 (7) | |
H7 | 0.6571 | −0.4534 | 0.5042 | 0.097* | |
C8 | 0.63345 (15) | −0.2203 (3) | 0.47946 (19) | 0.0716 (6) | |
H8 | 0.6023 | −0.2324 | 0.4080 | 0.086* | |
C9 | 0.88094 (11) | 0.16066 (19) | 0.69848 (13) | 0.0436 (4) | |
C10 | 0.88227 (13) | 0.2541 (2) | 0.60377 (15) | 0.0556 (5) | |
H10 | 0.8323 | 0.3146 | 0.5766 | 0.067* | |
C11 | 0.95774 (14) | 0.2569 (3) | 0.55021 (16) | 0.0626 (5) | |
H11 | 0.9585 | 0.3201 | 0.4864 | 0.075* | |
C12 | 1.03322 (12) | 0.1678 (2) | 0.58876 (16) | 0.0581 (5) | |
C13 | 1.03009 (13) | 0.0749 (2) | 0.68292 (17) | 0.0623 (5) | |
H13 | 1.0800 | 0.0144 | 0.7101 | 0.075* | |
C14 | 0.95457 (12) | 0.0694 (2) | 0.73804 (15) | 0.0541 (4) | |
H14 | 0.9533 | 0.0048 | 0.8011 | 0.065* | |
C15 | 1.11567 (15) | 0.1736 (3) | 0.5291 (2) | 0.0877 (8) | |
H15A | 1.1455 | 0.2744 | 0.5438 | 0.132* | |
H15B | 1.0988 | 0.1620 | 0.4495 | 0.132* | |
H15C | 1.1555 | 0.0883 | 0.5557 | 0.132* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0530 (3) | 0.0496 (3) | 0.0468 (3) | −0.00029 (19) | 0.00665 (19) | −0.00452 (18) |
O1 | 0.0675 (9) | 0.1255 (14) | 0.0618 (9) | −0.0107 (9) | −0.0128 (7) | 0.0207 (9) |
O2 | 0.0743 (10) | 0.0717 (10) | 0.0861 (11) | 0.0118 (8) | −0.0036 (8) | 0.0221 (9) |
O3 | 0.0755 (9) | 0.0734 (9) | 0.0435 (7) | −0.0095 (7) | 0.0067 (6) | 0.0063 (6) |
O4 | 0.0695 (9) | 0.0557 (8) | 0.0801 (9) | 0.0029 (6) | 0.0177 (7) | −0.0180 (7) |
N1 | 0.0498 (8) | 0.0470 (8) | 0.0620 (9) | 0.0048 (7) | −0.0016 (7) | −0.0006 (7) |
C1 | 0.0695 (15) | 0.170 (3) | 0.0853 (17) | −0.0053 (16) | −0.0123 (13) | 0.0621 (19) |
C2 | 0.0391 (9) | 0.0881 (16) | 0.0591 (12) | −0.0040 (10) | 0.0037 (8) | 0.0139 (11) |
C3 | 0.0395 (9) | 0.0634 (11) | 0.0542 (10) | −0.0029 (8) | 0.0053 (7) | 0.0010 (9) |
C4 | 0.0382 (8) | 0.0497 (10) | 0.0549 (10) | 0.0001 (7) | 0.0078 (7) | −0.0011 (8) |
C5 | 0.0592 (11) | 0.0540 (11) | 0.0657 (12) | 0.0030 (9) | −0.0018 (9) | 0.0046 (9) |
C6 | 0.0740 (14) | 0.0486 (12) | 0.1004 (17) | 0.0041 (10) | 0.0046 (13) | 0.0025 (11) |
C7 | 0.0807 (15) | 0.0570 (13) | 0.1052 (19) | −0.0042 (11) | 0.0099 (14) | −0.0210 (13) |
C8 | 0.0667 (13) | 0.0823 (15) | 0.0642 (13) | −0.0117 (11) | 0.0007 (10) | −0.0163 (11) |
C9 | 0.0478 (9) | 0.0432 (9) | 0.0384 (8) | 0.0004 (7) | −0.0004 (7) | −0.0031 (7) |
C10 | 0.0557 (11) | 0.0626 (12) | 0.0470 (10) | 0.0063 (9) | 0.0004 (8) | 0.0076 (8) |
C11 | 0.0692 (13) | 0.0724 (14) | 0.0463 (10) | −0.0107 (10) | 0.0077 (9) | 0.0042 (9) |
C12 | 0.0525 (11) | 0.0652 (12) | 0.0572 (11) | −0.0128 (9) | 0.0091 (9) | −0.0235 (9) |
C13 | 0.0495 (11) | 0.0650 (12) | 0.0705 (13) | 0.0103 (9) | −0.0010 (9) | −0.0100 (10) |
C14 | 0.0588 (11) | 0.0532 (11) | 0.0484 (10) | 0.0087 (8) | −0.0013 (8) | 0.0033 (8) |
C15 | 0.0654 (14) | 0.109 (2) | 0.0933 (17) | −0.0258 (13) | 0.0296 (12) | −0.0401 (15) |
S1—O3 | 1.4212 (13) | C6—H6 | 0.9300 |
S1—O4 | 1.4262 (14) | C7—C8 | 1.358 (3) |
S1—N1 | 1.6311 (15) | C7—H7 | 0.9300 |
S1—C9 | 1.7535 (17) | C8—H8 | 0.9300 |
O1—C2 | 1.331 (2) | C9—C10 | 1.379 (2) |
O1—C1 | 1.440 (3) | C9—C14 | 1.380 (2) |
O2—C2 | 1.206 (3) | C10—C11 | 1.367 (3) |
N1—C4 | 1.410 (2) | C10—H10 | 0.9300 |
N1—H1 | 0.8734 | C11—C12 | 1.388 (3) |
C1—H1A | 0.9600 | C11—H11 | 0.9300 |
C1—H1B | 0.9600 | C12—C13 | 1.374 (3) |
C1—H1C | 0.9600 | C12—C15 | 1.502 (3) |
C2—C3 | 1.479 (3) | C13—C14 | 1.379 (3) |
C3—C8 | 1.397 (3) | C13—H13 | 0.9300 |
C3—C4 | 1.407 (2) | C14—H14 | 0.9300 |
C4—C5 | 1.385 (2) | C15—H15A | 0.9600 |
C5—C6 | 1.373 (3) | C15—H15B | 0.9600 |
C5—H5 | 0.9300 | C15—H15C | 0.9600 |
C6—C7 | 1.372 (3) | ||
O3—S1—O4 | 119.33 (9) | C8—C7—C6 | 119.4 (2) |
O3—S1—N1 | 109.45 (8) | C8—C7—H7 | 120.3 |
O4—S1—N1 | 104.03 (8) | C6—C7—H7 | 120.3 |
O3—S1—C9 | 108.24 (8) | C7—C8—C3 | 122.0 (2) |
O4—S1—C9 | 108.40 (8) | C7—C8—H8 | 119.0 |
N1—S1—C9 | 106.73 (8) | C3—C8—H8 | 119.0 |
C2—O1—C1 | 116.4 (2) | C10—C9—C14 | 120.39 (17) |
C4—N1—S1 | 126.43 (12) | C10—C9—S1 | 119.30 (13) |
C4—N1—H1 | 111.6 | C14—C9—S1 | 120.27 (13) |
S1—N1—H1 | 112.8 | C11—C10—C9 | 119.29 (17) |
O1—C1—H1A | 109.5 | C11—C10—H10 | 120.4 |
O1—C1—H1B | 109.5 | C9—C10—H10 | 120.4 |
H1A—C1—H1B | 109.5 | C10—C11—C12 | 121.63 (18) |
O1—C1—H1C | 109.5 | C10—C11—H11 | 119.2 |
H1A—C1—H1C | 109.5 | C12—C11—H11 | 119.2 |
H1B—C1—H1C | 109.5 | C13—C12—C11 | 117.99 (17) |
O2—C2—O1 | 122.6 (2) | C13—C12—C15 | 121.3 (2) |
O2—C2—C3 | 125.93 (19) | C11—C12—C15 | 120.7 (2) |
O1—C2—C3 | 111.5 (2) | C12—C13—C14 | 121.46 (18) |
C8—C3—C4 | 118.07 (18) | C12—C13—H13 | 119.3 |
C8—C3—C2 | 121.06 (18) | C14—C13—H13 | 119.3 |
C4—C3—C2 | 120.86 (17) | C13—C14—C9 | 119.23 (17) |
C5—C4—C3 | 119.06 (17) | C13—C14—H14 | 120.4 |
C5—C4—N1 | 121.75 (16) | C9—C14—H14 | 120.4 |
C3—C4—N1 | 119.14 (16) | C12—C15—H15A | 109.5 |
C6—C5—C4 | 120.82 (19) | C12—C15—H15B | 109.5 |
C6—C5—H5 | 119.6 | H15A—C15—H15B | 109.5 |
C4—C5—H5 | 119.6 | C12—C15—H15C | 109.5 |
C7—C6—C5 | 120.6 (2) | H15A—C15—H15C | 109.5 |
C7—C6—H6 | 119.7 | H15B—C15—H15C | 109.5 |
C5—C6—H6 | 119.7 | ||
O3—S1—N1—C4 | −53.87 (17) | C6—C7—C8—C3 | 0.0 (4) |
O4—S1—N1—C4 | 177.55 (15) | C4—C3—C8—C7 | −0.1 (3) |
C9—S1—N1—C4 | 63.05 (16) | C2—C3—C8—C7 | −178.8 (2) |
C1—O1—C2—O2 | 1.7 (3) | O3—S1—C9—C10 | 178.84 (13) |
C1—O1—C2—C3 | −178.72 (17) | O4—S1—C9—C10 | −50.38 (16) |
O2—C2—C3—C8 | 178.3 (2) | N1—S1—C9—C10 | 61.13 (15) |
O1—C2—C3—C8 | −1.3 (2) | O3—S1—C9—C14 | −3.30 (16) |
O2—C2—C3—C4 | −0.4 (3) | O4—S1—C9—C14 | 127.47 (15) |
O1—C2—C3—C4 | −179.97 (15) | N1—S1—C9—C14 | −121.02 (14) |
C8—C3—C4—C5 | 0.2 (3) | C14—C9—C10—C11 | −0.8 (3) |
C2—C3—C4—C5 | 178.93 (16) | S1—C9—C10—C11 | 177.06 (14) |
C8—C3—C4—N1 | −177.13 (16) | C9—C10—C11—C12 | 0.1 (3) |
C2—C3—C4—N1 | 1.6 (2) | C10—C11—C12—C13 | 0.3 (3) |
S1—N1—C4—C5 | 34.0 (2) | C10—C11—C12—C15 | −179.53 (18) |
S1—N1—C4—C3 | −148.77 (14) | C11—C12—C13—C14 | 0.1 (3) |
C3—C4—C5—C6 | −0.2 (3) | C15—C12—C13—C14 | 179.90 (18) |
N1—C4—C5—C6 | 177.03 (18) | C12—C13—C14—C9 | −0.8 (3) |
C4—C5—C6—C7 | 0.1 (3) | C10—C9—C14—C13 | 1.2 (3) |
C5—C6—C7—C8 | 0.0 (4) | S1—C9—C14—C13 | −176.68 (14) |
Experimental details
Crystal data | |
Chemical formula | C15H15NO4S |
Mr | 305.34 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 15.0129 (13), 8.3593 (7), 11.9664 (11) |
β (°) | 96.854 (2) |
V (Å3) | 1491.0 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.23 |
Crystal size (mm) | 0.24 × 0.16 × 0.14 |
Data collection | |
Diffractometer | Bruker APEXII area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.947, 0.968 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7663, 2639, 2230 |
Rint | 0.024 |
(sin θ/λ)max (Å−1) | 0.596 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.102, 1.04 |
No. of reflections | 2639 |
No. of parameters | 191 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.15, −0.32 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXTL (Sheldrick, 2008).
Acknowledgements
The authors are grateful to the Natural Science Foundation of Shandong Province, China (grant No. G0231) and the Foundation of the Education Ministry of China for Returned Students (grant No. G0220) for financial support. The X-ray data were collected at Taishan University, China.
References
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Sulfur-containing compounds, such as sulfates, sulfones, thiols, sulfonamides and sulfoxides can exhibit insecticidal, germicidal or antimicrobial activities (Schultz et al., 2001; Krishnaiah et al., 1995; Arshad, Khan, Shafiq et al., 2009; Xiong et al., 2007). Particularly, the sulfonamides are biologically active organic compounds, which have been investigated as inhibitors of methionine aminopeptidase-2 (MetAP2) and intermediates for cancer therapy (Sheppard et al., 2006). In order to obtain detailed information on the molecular conformation, the X-ray study of the title sulfonamide has been carried out, and the results are presented here.
As is shown in Fig. 1, the two benzene rings are approximately orthogonal, the dihedral angle between their planes being 84.36 (6)°. In addition to van der Waals interactions, there is an intramolecular N—H···O hydrogen bond which generates a graph set motif S(6) (Arshad, Khan, Akkurt et al., 2009) to stabilize the molecular conformation (Fig. 1 and Table 1).