organic compounds
4-Methyl-N-[(S)-1-phenylethyl]benzenesulfonamide
aDepartment of Physics, Ondokuz Mayıs University, TR-55139 Samsun, Turkey, and bDepartment of Chemistry, Çankırı Karatekin University, TR-18100 Çankırı, Turkey
*Correspondence e-mail: orhanb@omu.edu.tr
In the title compound, C15H17NO2S, the dihedral angle between the aromatic rings is 14.47 (8)°. The molecule is bent at the N atom, with a C—SO2—NH—C torsion angle of 79.06 (13)°. In the the sulfonamide groups are hydrogen bonded via N—H⋯O links, forming chains of molecules along the crystallographic b axis. π–π interactions [centroid–centroid distance = 3.81 (3) Å] also occur.
Related literature
For general background to et al. (2008) and literature cited therein; Padeiskaya & Polukhina (1974). For the antimicrobial properties of and their applications in medical practice, see: Mashkovskii (1987); Zhungietu & Granik, (2000). For chemical aspects of related compounds, see: Liu et al. (2009a,b); Seong et al. (1998). For related structures, see: Deng & Hu (2005); Zhu et al. (2008); Chatterjee et al. (1982); Ghosh et al. (1991); Takasuka & Nakai, (2001). For spectroscopic data for the title compound, see: Georgy et al. (2009).
see: SiddiquiExperimental
Crystal data
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Data collection: X-AREA (Stoe & Cie, 2002); cell X-AREA; data reduction: X-RED32 (Stoe & Cie, 2002); 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, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536810032113/si2286sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810032113/si2286Isup2.hkl
(S) 1-Phenyl ethyl amine (1 g, 8.2 mmol) was dissolved in toluene (20 ml) under nitrogene at room temperature. TsCl (1.87 g, 9.8 mmol) was added to this solution. After 5 minutes the white precipate was formed. After stirring 5 minutes diisopropyl ethyl amine (1.43 ml, 8.2 mmol) was added to the solution. The reaction mixture was stirred at room temperature for an additional 3.5 h. After 3.5 h no amine was detected by TLC. The solution washed two times with water and organic layer dried over MgSO4. Solvent evaporated. The crude mixture purified by column chromotography PE/EtOAc (1:1), gave the title compound as a white crystalline solid (1.8 g, 79%). M.p. 87–89°C. Spectroskopic data identical with Lit. (Georgy et al., 2009).
The H atom of the NH group was located in a difference map and refined freely. All other H atoms were positioned with idealized geometry using a riding model, with C–H = 0.93 Å (aromatic), 0.98 Å (methine) and 0.96 Å (methyl). All H atoms were refined with Uiso=1.2Ueq (parent atom).
Benzenesulfonamide derivatives are well known in the biological sciences for their antibacterial, anticancer and anti- HIV activities. In the field of catalysis, their chloro derivatives are particularly important for carrying out a large number of oxidation reactions wherein the reaction kinetics are very important (Siddiqui et al., 2008 and literature cited therein).
Sulfonamides possess a number of antimicrobial properties and are applied in medical practice for treating infections caused by pathogens (Mashkovskii, 1987; Zhungietu & Granik, 2000). However, considering the ubiquitous spreading of resistant forms of bacteria, the problem of preparing novel
with advanced biomedical characteristics and the investigation of their structures and properties remain highly topical.The benzylic and allylic
are useful alkylating agents for the formation of carbon-carbon and carbon-heteroatom bonds under conditions and benzylic, allylic halides and the corresponding sulfonates are frequently employed as the alkylating agents.(Liu et al., 2009a). There are few reports for the preparation of diarylated derivatives and sulfinic acid (Liu et al., 2009b; Seong et al., 1998).The benzene rings A(C1—C6) and B(C10—C15) are both nearly planar with the maximum r.m.s. deviation from the mean plane as 0.0067 (12)Å for C5 (Fig. 1). The para-substituent on the conformation of the benzene ring is nearly planar to the that of the other benzene ring, making a dihedral angle of 14.47 (8)°.
In the crystal, the molecules are linked in opposite directions with each other via N1—H16···O1 intermolecular interactions and π–π stacking interactions between the benzene rings (centroid to centroid distance = 3.81 (3)Å are also effective in crystal packing. (Fig. 2, Table 1).
The molecule is bent at the N atom with a C—SO2—NH—C torsion angle of 79.06 (13)° and agree with the corresponding angle -77.2 (2)° in N-[4-(Dimethylamino)benzylidene]-4-methylbenzene-sulfonamide (Deng & Hu, 2005). The atoms around the sulfonamide S atom is arranged in a slightly distorted tetrahedral configuration. The largest deviation is in the angle O2—S1—O1 [119.63 (8)°]. In N,4-Dimethyl-N-(4-nitrobenzyl)benzene- sulfonamide, the similar angle is 119.53 (15)° (Zhu et al., 2008) and the same conforms to the non-tetrahedral nature commonly observed in
(Chatterjee et al., 1982; Ghosh et al., 1991; Takasuka & Nakai, 2001).For general background to
see: Siddiqui et al. (2008) and literature cited therein; Padeiskaya & Polukhina (1974). For the antimicrobial properties of and their applications in medical practice, see: Mashkovskii (1987); Zhungietu & Granik, (2000). For chemical aspects of related compounds, see: Liu et al. (2009a,b); Seong et al. (1998). For related structures, see: Deng & Hu (2005); Zhu et al. (2008); Chatterjee et al. (1982); Ghosh et al. (1991); Takasuka & Nakai, (2001). For spectroscopic data of the title compound, see: Georgy et al. (2009).Data collection: X-AREA (Stoe & Cie, 2002); cell
X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); 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, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).C15H17NO2S | F(000) = 292 |
Mr = 275.36 | Dx = 1.284 Mg m−3 |
Monoclinic, P21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2yb | Cell parameters from 10843 reflections |
a = 8.1588 (4) Å | θ = 2.4–26.9° |
b = 10.1498 (4) Å | µ = 0.23 mm−1 |
c = 8.9242 (5) Å | T = 296 K |
β = 105.545 (4)° | Plane graphite, colorless |
V = 711.98 (6) Å3 | 0.76 × 0.55 × 0.38 mm |
Z = 2 |
Stoe IPDS 2 diffractometer | 2950 independent reflections |
Radiation source: fine-focus sealed tube | 2864 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
rotation method scans | θmax = 26.5°, θmin = 2.4° |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | h = −10→10 |
Tmin = 0.881, Tmax = 0.933 | k = −12→12 |
10843 measured reflections | l = −11→11 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.029 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.076 | w = 1/[σ2(Fo2) + (0.0563P)2 + 0.0201P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max < 0.001 |
2950 reflections | Δρmax = 0.17 e Å−3 |
176 parameters | Δρmin = −0.23 e Å−3 |
2 restraints | Absolute structure: Flack (1983), 1388 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: −0.02 (5) |
C15H17NO2S | V = 711.98 (6) Å3 |
Mr = 275.36 | Z = 2 |
Monoclinic, P21 | Mo Kα radiation |
a = 8.1588 (4) Å | µ = 0.23 mm−1 |
b = 10.1498 (4) Å | T = 296 K |
c = 8.9242 (5) Å | 0.76 × 0.55 × 0.38 mm |
β = 105.545 (4)° |
Stoe IPDS 2 diffractometer | 2950 independent reflections |
Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | 2864 reflections with I > 2σ(I) |
Tmin = 0.881, Tmax = 0.933 | Rint = 0.027 |
10843 measured reflections |
R[F2 > 2σ(F2)] = 0.029 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.076 | Δρmax = 0.17 e Å−3 |
S = 1.05 | Δρmin = −0.23 e Å−3 |
2950 reflections | Absolute structure: Flack (1983), 1388 Friedel pairs |
176 parameters | Absolute structure parameter: −0.02 (5) |
2 restraints |
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 | 0.69009 (17) | 0.77118 (14) | 0.68328 (15) | 0.0428 (3) | |
C2 | 0.67635 (19) | 0.88063 (14) | 0.77051 (17) | 0.0476 (3) | |
H2 | 0.6034 | 0.9491 | 0.7269 | 0.057* | |
C3 | 0.7724 (2) | 0.88734 (17) | 0.92370 (18) | 0.0535 (3) | |
H3 | 0.7633 | 0.9609 | 0.9831 | 0.064* | |
C4 | 0.8815 (2) | 0.78666 (18) | 0.98963 (19) | 0.0553 (4) | |
C5 | 0.8956 (2) | 0.6792 (2) | 0.9000 (2) | 0.0609 (4) | |
H5 | 0.9708 | 0.6119 | 0.9432 | 0.073* | |
C6 | 0.8002 (2) | 0.66945 (17) | 0.7473 (2) | 0.0546 (3) | |
H6 | 0.8096 | 0.5958 | 0.6882 | 0.066* | |
C7 | 0.9778 (3) | 0.7926 (3) | 1.1598 (2) | 0.0814 (6) | |
H7A | 1.0469 | 0.8706 | 1.1789 | 0.098* | |
H7B | 1.0491 | 0.7163 | 1.1864 | 0.098* | |
H7C | 0.8984 | 0.7948 | 1.2221 | 0.098* | |
C8 | 0.25591 (18) | 0.69454 (16) | 0.54631 (17) | 0.0492 (3) | |
H8 | 0.2031 | 0.7677 | 0.4788 | 0.059* | |
C9 | 0.1317 (2) | 0.5803 (2) | 0.5145 (3) | 0.0721 (5) | |
H9A | 0.1025 | 0.5591 | 0.4057 | 0.087* | |
H9B | 0.0308 | 0.6043 | 0.5437 | 0.087* | |
H9C | 0.1833 | 0.5050 | 0.5739 | 0.087* | |
C10 | 0.29391 (16) | 0.74216 (18) | 0.71331 (15) | 0.0466 (3) | |
C11 | 0.2449 (2) | 0.86701 (19) | 0.7442 (2) | 0.0638 (4) | |
H11 | 0.1885 | 0.9212 | 0.6627 | 0.077* | |
C12 | 0.2791 (3) | 0.9121 (2) | 0.8955 (3) | 0.0831 (6) | |
H12 | 0.2453 | 0.9964 | 0.9151 | 0.100* | |
C13 | 0.3624 (3) | 0.8335 (3) | 1.0168 (2) | 0.0803 (6) | |
H13 | 0.3844 | 0.8639 | 1.1186 | 0.096* | |
C14 | 0.4129 (3) | 0.7105 (2) | 0.9874 (2) | 0.0714 (6) | |
H14 | 0.4712 | 0.6575 | 1.0695 | 0.086* | |
C15 | 0.3784 (2) | 0.66387 (18) | 0.83688 (18) | 0.0568 (4) | |
H15 | 0.4121 | 0.5792 | 0.8184 | 0.068* | |
N1 | 0.40634 (17) | 0.65258 (12) | 0.49794 (14) | 0.0465 (3) | |
O1 | 0.48302 (17) | 0.87632 (11) | 0.44036 (12) | 0.0612 (3) | |
O2 | 0.65796 (18) | 0.68619 (15) | 0.40456 (14) | 0.0684 (3) | |
S1 | 0.55950 (4) | 0.75139 (4) | 0.49215 (3) | 0.04629 (10) | |
H16 | 0.4401 (19) | 0.5744 (16) | 0.5177 (19) | 0.044 (4)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0486 (6) | 0.0399 (7) | 0.0399 (6) | −0.0036 (5) | 0.0121 (5) | 0.0028 (5) |
C2 | 0.0549 (7) | 0.0398 (7) | 0.0448 (7) | −0.0017 (6) | 0.0075 (6) | −0.0004 (6) |
C3 | 0.0611 (8) | 0.0499 (8) | 0.0464 (7) | −0.0085 (7) | 0.0093 (6) | −0.0067 (6) |
C4 | 0.0486 (7) | 0.0667 (11) | 0.0466 (7) | −0.0086 (6) | 0.0058 (6) | 0.0061 (6) |
C5 | 0.0541 (8) | 0.0640 (10) | 0.0610 (9) | 0.0129 (7) | 0.0093 (7) | 0.0120 (8) |
C6 | 0.0596 (8) | 0.0492 (8) | 0.0561 (8) | 0.0090 (7) | 0.0172 (7) | 0.0004 (7) |
C7 | 0.0795 (12) | 0.1006 (17) | 0.0517 (9) | −0.0085 (11) | −0.0040 (8) | 0.0086 (9) |
C8 | 0.0502 (7) | 0.0509 (7) | 0.0418 (7) | 0.0045 (6) | 0.0044 (5) | −0.0014 (6) |
C9 | 0.0593 (9) | 0.0869 (14) | 0.0674 (11) | −0.0175 (9) | 0.0124 (8) | −0.0182 (10) |
C10 | 0.0478 (6) | 0.0465 (7) | 0.0449 (6) | −0.0002 (6) | 0.0113 (5) | −0.0038 (7) |
C11 | 0.0646 (9) | 0.0576 (10) | 0.0690 (10) | 0.0131 (8) | 0.0177 (8) | −0.0074 (8) |
C12 | 0.0906 (14) | 0.0773 (14) | 0.0898 (15) | 0.0018 (11) | 0.0388 (12) | −0.0340 (12) |
C13 | 0.0881 (14) | 0.1013 (17) | 0.0577 (10) | −0.0286 (12) | 0.0306 (10) | −0.0272 (11) |
C14 | 0.0815 (11) | 0.0865 (15) | 0.0437 (8) | −0.0241 (10) | 0.0127 (8) | 0.0035 (8) |
C15 | 0.0693 (9) | 0.0506 (8) | 0.0489 (8) | −0.0047 (7) | 0.0131 (7) | 0.0035 (7) |
N1 | 0.0589 (6) | 0.0347 (6) | 0.0439 (6) | −0.0013 (5) | 0.0105 (5) | −0.0056 (5) |
O1 | 0.0858 (8) | 0.0432 (6) | 0.0457 (5) | −0.0070 (5) | 0.0022 (5) | 0.0079 (5) |
O2 | 0.0826 (8) | 0.0785 (8) | 0.0519 (6) | −0.0063 (7) | 0.0317 (6) | −0.0120 (6) |
S1 | 0.06240 (19) | 0.04072 (16) | 0.03579 (15) | −0.00478 (15) | 0.01324 (12) | −0.00162 (14) |
C1—C2 | 1.378 (2) | C9—H9A | 0.9600 |
C1—C6 | 1.387 (2) | C9—H9B | 0.9600 |
C1—S1 | 1.7638 (13) | C9—H9C | 0.9600 |
C2—C3 | 1.383 (2) | C10—C11 | 1.379 (3) |
C2—H2 | 0.9300 | C10—C15 | 1.384 (2) |
C3—C4 | 1.379 (2) | C11—C12 | 1.381 (3) |
C3—H3 | 0.9300 | C11—H11 | 0.9300 |
C4—C5 | 1.375 (3) | C12—C13 | 1.370 (4) |
C4—C7 | 1.512 (2) | C12—H12 | 0.9300 |
C5—C6 | 1.380 (2) | C13—C14 | 1.362 (4) |
C5—H5 | 0.9300 | C13—H13 | 0.9300 |
C6—H6 | 0.9300 | C14—C15 | 1.381 (2) |
C7—H7A | 0.9600 | C14—H14 | 0.9300 |
C7—H7B | 0.9600 | C15—H15 | 0.9300 |
C7—H7C | 0.9600 | N1—S1 | 1.6138 (13) |
C8—N1 | 1.469 (2) | N1—H16 | 0.843 (15) |
C8—C9 | 1.516 (2) | O1—S1 | 1.4339 (12) |
C8—C10 | 1.5177 (19) | O2—S1 | 1.4251 (13) |
C8—H8 | 0.9800 | ||
C2—C1—C6 | 120.59 (13) | H9A—C9—H9B | 109.5 |
C2—C1—S1 | 121.23 (11) | C8—C9—H9C | 109.5 |
C6—C1—S1 | 118.06 (11) | H9A—C9—H9C | 109.5 |
C1—C2—C3 | 119.18 (14) | H9B—C9—H9C | 109.5 |
C1—C2—H2 | 120.4 | C11—C10—C15 | 118.51 (15) |
C3—C2—H2 | 120.4 | C11—C10—C8 | 119.70 (15) |
C4—C3—C2 | 121.00 (15) | C15—C10—C8 | 121.78 (16) |
C4—C3—H3 | 119.5 | C10—C11—C12 | 120.45 (19) |
C2—C3—H3 | 119.5 | C10—C11—H11 | 119.8 |
C5—C4—C3 | 118.99 (14) | C12—C11—H11 | 119.8 |
C5—C4—C7 | 120.90 (17) | C13—C12—C11 | 120.5 (2) |
C3—C4—C7 | 120.05 (17) | C13—C12—H12 | 119.8 |
C4—C5—C6 | 121.19 (16) | C11—C12—H12 | 119.8 |
C4—C5—H5 | 119.4 | C14—C13—C12 | 119.55 (19) |
C6—C5—H5 | 119.4 | C14—C13—H13 | 120.2 |
C5—C6—C1 | 119.03 (16) | C12—C13—H13 | 120.2 |
C5—C6—H6 | 120.5 | C13—C14—C15 | 120.6 (2) |
C1—C6—H6 | 120.5 | C13—C14—H14 | 119.7 |
C4—C7—H7A | 109.5 | C15—C14—H14 | 119.7 |
C4—C7—H7B | 109.5 | C14—C15—C10 | 120.44 (18) |
H7A—C7—H7B | 109.5 | C14—C15—H15 | 119.8 |
C4—C7—H7C | 109.5 | C10—C15—H15 | 119.8 |
H7A—C7—H7C | 109.5 | C8—N1—S1 | 122.98 (10) |
H7B—C7—H7C | 109.5 | C8—N1—H16 | 117.6 (11) |
N1—C8—C9 | 106.99 (14) | S1—N1—H16 | 112.3 (11) |
N1—C8—C10 | 114.46 (12) | O2—S1—O1 | 119.63 (8) |
C9—C8—C10 | 112.21 (15) | O2—S1—N1 | 106.51 (8) |
N1—C8—H8 | 107.6 | O1—S1—N1 | 106.62 (7) |
C9—C8—H8 | 107.6 | O2—S1—C1 | 107.46 (7) |
C10—C8—H8 | 107.6 | O1—S1—C1 | 107.99 (7) |
C8—C9—H9A | 109.5 | N1—S1—C1 | 108.18 (6) |
C8—C9—H9B | 109.5 | ||
C6—C1—C2—C3 | −0.7 (2) | C11—C12—C13—C14 | 0.5 (3) |
S1—C1—C2—C3 | 175.22 (11) | C12—C13—C14—C15 | −1.1 (3) |
C1—C2—C3—C4 | 0.2 (2) | C13—C14—C15—C10 | 0.9 (3) |
C2—C3—C4—C5 | 0.8 (2) | C11—C10—C15—C14 | −0.2 (3) |
C2—C3—C4—C7 | −176.55 (16) | C8—C10—C15—C14 | 179.21 (15) |
C3—C4—C5—C6 | −1.4 (3) | C9—C8—N1—S1 | 172.13 (12) |
C7—C4—C5—C6 | 175.96 (18) | C10—C8—N1—S1 | −62.90 (17) |
C4—C5—C6—C1 | 0.9 (3) | C8—N1—S1—O2 | −165.68 (12) |
C2—C1—C6—C5 | 0.2 (2) | C8—N1—S1—O1 | −36.88 (13) |
S1—C1—C6—C5 | −175.89 (13) | C8—N1—S1—C1 | 79.06 (13) |
N1—C8—C10—C11 | 122.94 (16) | C2—C1—S1—O2 | 145.43 (12) |
C9—C8—C10—C11 | −114.90 (18) | C6—C1—S1—O2 | −38.50 (14) |
N1—C8—C10—C15 | −56.5 (2) | C2—C1—S1—O1 | 15.11 (14) |
C9—C8—C10—C15 | 65.69 (19) | C6—C1—S1—O1 | −168.83 (12) |
C15—C10—C11—C12 | −0.3 (3) | C2—C1—S1—N1 | −99.93 (12) |
C8—C10—C11—C12 | −179.74 (18) | C6—C1—S1—N1 | 76.13 (12) |
C10—C11—C12—C13 | 0.1 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H16···O1i | 0.84 (2) | 2.11 (2) | 2.9519 (17) | 178 (1) |
Symmetry code: (i) −x+1, y−1/2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C15H17NO2S |
Mr | 275.36 |
Crystal system, space group | Monoclinic, P21 |
Temperature (K) | 296 |
a, b, c (Å) | 8.1588 (4), 10.1498 (4), 8.9242 (5) |
β (°) | 105.545 (4) |
V (Å3) | 711.98 (6) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.23 |
Crystal size (mm) | 0.76 × 0.55 × 0.38 |
Data collection | |
Diffractometer | Stoe IPDS 2 |
Absorption correction | Integration (X-RED32; Stoe & Cie, 2002) |
Tmin, Tmax | 0.881, 0.933 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10843, 2950, 2864 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.628 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.029, 0.076, 1.05 |
No. of reflections | 2950 |
No. of parameters | 176 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.17, −0.23 |
Absolute structure | Flack (1983), 1388 Friedel pairs |
Absolute structure parameter | −0.02 (5) |
Computer programs: X-AREA (Stoe & Cie, 2002), X-RED32 (Stoe & Cie, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H16···O1i | 0.843 (16) | 2.110 (16) | 2.9519 (17) | 177.8 (10) |
Symmetry code: (i) −x+1, y−1/2, −z+1. |
Acknowledgements
The authors thank Professor Magnus Rueping of RWTH Aachen University, Germany, for helpful discussions. The authors acknowledge the Faculty of Arts and Sciences, Ondokuz Mayıs University, Turkey, for the use of the Stoe IPDS 2 diffractometer (purchased under grant F.279 of the University Research Fund).
References
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Benzenesulfonamide derivatives are well known in the biological sciences for their antibacterial, anticancer and anti- HIV activities. In the field of catalysis, their chloro derivatives are particularly important for carrying out a large number of oxidation reactions wherein the reaction kinetics are very important (Siddiqui et al., 2008 and literature cited therein).
Sulfonamides possess a number of antimicrobial properties and are applied in medical practice for treating infections caused by pathogens (Mashkovskii, 1987; Zhungietu & Granik, 2000). However, considering the ubiquitous spreading of resistant forms of bacteria, the problem of preparing novel sulfonamides with advanced biomedical characteristics and the investigation of their structures and properties remain highly topical.
The benzylic and allylic amines are useful alkylating agents for the formation of carbon-carbon and carbon-heteroatom bonds under lewis acid conditions and benzylic, allylic halides and the corresponding sulfonates are frequently employed as the alkylating agents.(Liu et al., 2009a). There are few reports for the preparation of diarylated derivatives and sulfinic acid (Liu et al., 2009b; Seong et al., 1998).
The benzene rings A(C1—C6) and B(C10—C15) are both nearly planar with the maximum r.m.s. deviation from the mean plane as 0.0067 (12)Å for C5 (Fig. 1). The para-substituent on the conformation of the benzene ring is nearly planar to the that of the other benzene ring, making a dihedral angle of 14.47 (8)°.
In the crystal, the molecules are linked in opposite directions with each other via N1—H16···O1 intermolecular interactions and π–π stacking interactions between the benzene rings (centroid to centroid distance = 3.81 (3)Å are also effective in crystal packing. (Fig. 2, Table 1).
The molecule is bent at the N atom with a C—SO2—NH—C torsion angle of 79.06 (13)° and agree with the corresponding angle -77.2 (2)° in N-[4-(Dimethylamino)benzylidene]-4-methylbenzene-sulfonamide (Deng & Hu, 2005). The atoms around the sulfonamide S atom is arranged in a slightly distorted tetrahedral configuration. The largest deviation is in the angle O2—S1—O1 [119.63 (8)°]. In N,4-Dimethyl-N-(4-nitrobenzyl)benzene- sulfonamide, the similar angle is 119.53 (15)° (Zhu et al., 2008) and the same conforms to the non-tetrahedral nature commonly observed in sulfonamides (Chatterjee et al., 1982; Ghosh et al., 1991; Takasuka & Nakai, 2001).