organic compounds
[2-(2,3-Dimethylanilino)phenyl]methanol
aInstitute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan, and bDepartment of Physics, University of Sargodha, Sargodha, Pakistan
*Correspondence e-mail: dmntahir_uos@yahoo.com
In the title compound, C15H17NO, the 2,3-dimethylphenyl group is disordered over two sites with an occupancy ratio of 0.869 (3):0.131 (3). The major and minor components of the 2,3-dimethylanilino group are planar, with r.m.s. deviations of 0.0214 and 0.0303 Å, respectively, and are oriented at a dihedral angle of 2.6 (6)°. The phenylmethanol–benzene ring is oriented at dihedral angles of 83.16 (6) and 81.0 (3)° with respect to the major and minor components of the 2,3-dimethylanilino group, respectively. An S(6) ring motif is present due to intramolecular N—H⋯O hydrogen bonding. In the crystal, molecules are connected into supramolecular chains via O—H⋯O hydrogen bonding along the b axis. C—H⋯π interactions help to stabilize the crystal structure.
Related literature
For a related structure, see: Nawaz et al. (2007). For graph-set notation, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; 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) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
https://doi.org/10.1107/S1600536810033325/tk2701sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810033325/tk2701Isup2.hkl
A solution of mefenamic acid (8.2 mmol) in THF (20 ml) was slowly added to a suspension of NaBH4 (10 mmol) in THF (20 ml), at room temperature. The mixture was stirred until evolution of hydrogen ceased. Iodine (4.1 mmol) in THF (20 ml) was added drop wise to this mixture. When the addition of iodine was complete, the reaction mixture was refluxed for 8 h and cooled to room temperature. Then, 2 N HCl (10 ml) was added and the mixture was extracted with ether. The ether layer was washed with 2 N NaOH (20 ml) and then with brine. Finally, the ether layer was dried over MgSO4. Evaporation of solvent yielded a mixture of mefenamic acid and an alcohol. The pure product was obtained by passing the mixture over silica gel column (eluent: n-hexane and ethyl acetate). The product, (I), was recrystallized from ethyl acetate and n-hexane. The yield of reaction was 73%; m.pt. 337 K.
The H atoms were positioned geometrically (O—H = 0.82, N—H = 0.86 and C–H = 0.93–0.97 Å) and refined as riding with Uiso(H) = xUeq(C, N, O), where x = 1.5 for methyl H atoms and x = 1.2 for all other H atoms. The 2,3-dimethylphenyl ring was found to be disordered and was resolved over two positions with an occupancy ratio of 0.869 (3):0.131 (3). Each ring was treated as a regular hexagon and the anisotropic displacement parameters for equivalent atoms were constrained to be equivalent.
The title compound (I, Fig. 1) is an important intermediate in our research related to the synthesis of pharmaceutically important derivatives of commonly used drugs. In this context, the
of a compound related to (I), i.e. methyl 2-(2,3-dimethylanilino)benzoate (Nawaz et al., 2007), has been published recently.In (I), the 2,3-dimethylphenyl group is disordered over two sites with an occupancy ratio of 0.869 (3):0.131 (3). The (2,3-dimethylphenyl)amino groups A (C1A—C8A/N1) and B (C1B—C8B/N1) are each planar with r. m. s. deviation of 0.0214 and 0.0303 Å, respectively. The dihedral angle between A/B is 2.4 (6) °. The dihedral angles between A/C and B/C are 83.16 (6) and 81.0 (3) °, respectively; C is the least-square plane through the benzene ring. An S(6) ring motif (Bernstein et al., 1995) is formed due to intramolecular H-bond of the type N—H···O (Fig. 1). The molecules associate into supramolecular chains (Fig. 2) via H-bonding of the type O—H···O along the b axis. The presence of C—H···π interactions (Table 1) also play an important role in stabilizing the crystal structure.
For a related structure, see: Nawaz et al. (2007). For graph-set notation, see: Bernstein et al. (1995).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); 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) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. View of (I) with the atom numbering scheme showing atoms of the major component of the disorder. The displacement ellipsoids are drawn at the 50% probability level. H-atoms are shown as small spheres of arbitrary radii. The dotted line represent the intramolecular H-bonding. | |
Fig. 2. View of (I) with the atom numbering scheme showing atoms of the minor component of the disorder. The displacement ellipsoids are drawn at the 50% probability level. H-atoms are shown as small spheres of arbitrary radii. The dotted line represent the intramolecular H-bonding. | |
Fig. 3. The partial packing (PLATON; Spek, 2009) showing that molecules are interlinked and form supramolecular chains via O–H···O hydrogen bonding (dashed lines). The intramolecular S(6) ring motifs are also illustrated (dashed lines). Only the major component of the disordered group is shown for clarity. |
C15H17NO | F(000) = 976 |
Mr = 227.30 | Dx = 1.186 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 1342 reflections |
a = 26.819 (2) Å | θ = 3.1–25.2° |
b = 5.0317 (4) Å | µ = 0.07 mm−1 |
c = 21.4156 (15) Å | T = 296 K |
β = 118.198 (3)° | Prism, dark-red |
V = 2547.0 (3) Å3 | 0.34 × 0.25 × 0.22 mm |
Z = 8 |
Bruker Kappa APEXII CCD diffractometer | 2298 independent reflections |
Radiation source: fine-focus sealed tube | 1342 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.051 |
Detector resolution: 8.10 pixels mm-1 | θmax = 25.2°, θmin = 3.1° |
ω scans | h = −32→32 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −6→4 |
Tmin = 0.966, Tmax = 0.975 | l = −25→25 |
9889 measured reflections |
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)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.150 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0649P)2 + 0.7177P] where P = (Fo2 + 2Fc2)/3 |
2298 reflections | (Δ/σ)max < 0.001 |
160 parameters | Δρmax = 0.21 e Å−3 |
3 restraints | Δρmin = −0.16 e Å−3 |
C15H17NO | V = 2547.0 (3) Å3 |
Mr = 227.30 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 26.819 (2) Å | µ = 0.07 mm−1 |
b = 5.0317 (4) Å | T = 296 K |
c = 21.4156 (15) Å | 0.34 × 0.25 × 0.22 mm |
β = 118.198 (3)° |
Bruker Kappa APEXII CCD diffractometer | 2298 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 1342 reflections with I > 2σ(I) |
Tmin = 0.966, Tmax = 0.975 | Rint = 0.051 |
9889 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 3 restraints |
wR(F2) = 0.150 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.21 e Å−3 |
2298 reflections | Δρmin = −0.16 e Å−3 |
160 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
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) | |
O1 | 0.22429 (7) | −0.0427 (3) | 0.23258 (9) | 0.0696 (7) | |
N1 | 0.14081 (10) | 0.0565 (5) | 0.08648 (10) | 0.0804 (9) | |
C1A | 0.12806 (11) | 0.1206 (6) | 0.01625 (9) | 0.0610 (11) | 0.869 (3) |
C2A | 0.16207 (10) | 0.3042 (5) | 0.00568 (9) | 0.0595 (11) | 0.869 (3) |
C3A | 0.15111 (10) | 0.3693 (4) | −0.06272 (11) | 0.0649 (12) | 0.869 (3) |
C4A | 0.10612 (11) | 0.2509 (5) | −0.12053 (8) | 0.0717 (13) | 0.869 (3) |
C5A | 0.07211 (10) | 0.0673 (6) | −0.10996 (10) | 0.0792 (14) | 0.869 (3) |
C6A | 0.08307 (11) | 0.0022 (5) | −0.04157 (12) | 0.0756 (16) | 0.869 (3) |
C7A | 0.20928 (14) | 0.4464 (7) | 0.06895 (17) | 0.0812 (12) | 0.869 (3) |
C8A | 0.18663 (15) | 0.5678 (7) | −0.07597 (18) | 0.0871 (16) | 0.869 (3) |
C9 | 0.11296 (10) | 0.1723 (5) | 0.12023 (12) | 0.0553 (8) | |
C10 | 0.12760 (10) | 0.0941 (5) | 0.18928 (12) | 0.0528 (8) | |
C11 | 0.09907 (11) | 0.2087 (6) | 0.22200 (13) | 0.0679 (10) | |
C12 | 0.05732 (12) | 0.3965 (6) | 0.18848 (15) | 0.0765 (11) | |
C13 | 0.04389 (11) | 0.4728 (6) | 0.12102 (14) | 0.0737 (11) | |
C14 | 0.07117 (10) | 0.3638 (5) | 0.08703 (13) | 0.0658 (10) | |
C15 | 0.17026 (11) | −0.1194 (5) | 0.22527 (13) | 0.0637 (10) | |
C6B | 0.1812 (8) | 0.377 (4) | 0.0253 (7) | 0.0610 (11) | 0.131 (3) |
C7B | 0.0593 (8) | −0.096 (4) | −0.0260 (10) | 0.0610 (11) | 0.131 (3) |
C1B | 0.1440 (9) | 0.194 (4) | 0.0291 (8) | 0.0610 (11) | 0.131 (3) |
C2B | 0.1000 (8) | 0.091 (4) | −0.0326 (10) | 0.0610 (11) | 0.131 (3) |
C3B | 0.0933 (7) | 0.172 (4) | −0.0982 (8) | 0.0610 (11) | 0.131 (3) |
C4B | 0.1305 (7) | 0.355 (3) | −0.1021 (7) | 0.0610 (11) | 0.131 (3) |
C5B | 0.1745 (6) | 0.457 (3) | −0.0404 (8) | 0.0610 (11) | 0.131 (3) |
C8B | 0.0445 (7) | 0.065 (4) | −0.1661 (9) | 0.0610 (11) | 0.131 (3) |
H1 | 0.16684 | −0.05878 | 0.10922 | 0.0964* | |
H1A | 0.24482 | −0.17371 | 0.24238 | 0.0836* | |
H8C | 0.22583 | 0.52079 | −0.04878 | 0.1304* | 0.869 (3) |
H11 | 0.10832 | 0.15763 | 0.26794 | 0.0813* | |
H12 | 0.03857 | 0.47020 | 0.21140 | 0.0918* | |
H13 | 0.01593 | 0.59991 | 0.09808 | 0.0884* | |
H14 | 0.06171 | 0.41825 | 0.04127 | 0.0790* | |
H15A | 0.17367 | −0.15338 | 0.27172 | 0.0764* | |
H15B | 0.15780 | −0.28213 | 0.19786 | 0.0764* | |
H4A | 0.09879 | 0.29446 | −0.16629 | 0.0860* | 0.869 (3) |
H5A | 0.04201 | −0.01196 | −0.14864 | 0.0953* | 0.869 (3) |
H6A | 0.06032 | −0.12068 | −0.03449 | 0.0906* | 0.869 (3) |
H7A | 0.24531 | 0.38724 | 0.07493 | 0.1218* | 0.869 (3) |
H7B | 0.20635 | 0.40668 | 0.11094 | 0.1218* | 0.869 (3) |
H7C | 0.20588 | 0.63470 | 0.06078 | 0.1218* | 0.869 (3) |
H8A | 0.18057 | 0.74134 | −0.06220 | 0.1304* | 0.869 (3) |
H8B | 0.17627 | 0.56839 | −0.12545 | 0.1304* | 0.869 (3) |
H4B | 0.12604 | 0.40865 | −0.14600 | 0.0732* | 0.131 (3) |
H5B | 0.19942 | 0.57989 | −0.04293 | 0.0732* | 0.131 (3) |
H6B | 0.21064 | 0.44540 | 0.06659 | 0.0732* | 0.131 (3) |
H7D | 0.04522 | −0.22049 | −0.06458 | 0.0914* | 0.131 (3) |
H7E | 0.02823 | 0.00255 | −0.02709 | 0.0914* | 0.131 (3) |
H7F | 0.07823 | −0.19112 | 0.01807 | 0.0914* | 0.131 (3) |
H8D | 0.04325 | −0.12510 | −0.16349 | 0.0914* | 0.131 (3) |
H8E | 0.04981 | 0.11462 | −0.20581 | 0.0914* | 0.131 (3) |
H8F | 0.00953 | 0.13853 | −0.17175 | 0.0914* | 0.131 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0578 (11) | 0.0489 (11) | 0.0796 (12) | 0.0012 (8) | 0.0139 (9) | 0.0087 (9) |
N1 | 0.0957 (17) | 0.0923 (18) | 0.0569 (14) | 0.0498 (14) | 0.0392 (13) | 0.0256 (11) |
C1A | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
C2A | 0.065 (2) | 0.059 (2) | 0.0446 (17) | 0.0215 (16) | 0.0177 (15) | −0.0045 (14) |
C3A | 0.077 (2) | 0.064 (2) | 0.050 (2) | 0.0204 (17) | 0.0270 (18) | 0.0003 (15) |
C4A | 0.088 (3) | 0.075 (2) | 0.0440 (18) | 0.0262 (19) | 0.0245 (18) | 0.0037 (16) |
C5A | 0.072 (2) | 0.092 (3) | 0.052 (2) | 0.0098 (19) | 0.0116 (19) | −0.0105 (18) |
C6A | 0.070 (3) | 0.085 (3) | 0.065 (2) | 0.0081 (19) | 0.0263 (19) | −0.0012 (19) |
C7A | 0.081 (2) | 0.079 (2) | 0.072 (2) | 0.0014 (18) | 0.0267 (19) | −0.0118 (18) |
C8A | 0.101 (3) | 0.084 (3) | 0.085 (2) | 0.014 (2) | 0.051 (2) | 0.0154 (19) |
C9 | 0.0571 (14) | 0.0540 (16) | 0.0499 (14) | 0.0065 (12) | 0.0212 (12) | 0.0020 (11) |
C10 | 0.0545 (14) | 0.0471 (15) | 0.0481 (14) | −0.0076 (11) | 0.0171 (12) | −0.0010 (11) |
C11 | 0.0721 (18) | 0.078 (2) | 0.0509 (15) | −0.0144 (15) | 0.0268 (14) | −0.0061 (13) |
C12 | 0.0680 (19) | 0.091 (2) | 0.073 (2) | 0.0069 (16) | 0.0353 (16) | −0.0131 (16) |
C13 | 0.0614 (17) | 0.082 (2) | 0.0659 (18) | 0.0188 (14) | 0.0204 (14) | −0.0078 (14) |
C14 | 0.0661 (17) | 0.0721 (19) | 0.0509 (15) | 0.0180 (14) | 0.0208 (13) | 0.0061 (12) |
C15 | 0.0654 (17) | 0.0543 (17) | 0.0579 (16) | −0.0070 (13) | 0.0181 (13) | 0.0070 (12) |
C6B | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
C7B | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
C1B | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
C2B | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
C3B | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
C4B | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
C5B | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
C8B | 0.066 (2) | 0.064 (2) | 0.0521 (19) | 0.0178 (16) | 0.0271 (18) | 0.0012 (15) |
O1—C15 | 1.435 (4) | C12—C13 | 1.368 (4) |
O1—H1A | 0.8200 | C13—C14 | 1.367 (4) |
N1—C1A | 1.413 (3) | C4A—H4A | 0.9300 |
N1—C1B | 1.448 (19) | C4B—H4B | 0.9300 |
N1—C9 | 1.389 (4) | C5A—H5A | 0.9300 |
N1—H1 | 0.8600 | C5B—H5B | 0.9300 |
C1A—C2A | 1.390 (4) | C6A—H6A | 0.9300 |
C1A—C6A | 1.390 (3) | C6B—H6B | 0.9300 |
C1B—C6B | 1.39 (3) | C7A—H7B | 0.9600 |
C1B—C2B | 1.39 (3) | C7A—H7A | 0.9600 |
C2A—C3A | 1.390 (3) | C7A—H7C | 0.9600 |
C2A—C7A | 1.526 (4) | C7B—H7F | 0.9600 |
C2B—C7B | 1.50 (3) | C7B—H7D | 0.9600 |
C2B—C3B | 1.39 (3) | C7B—H7E | 0.9600 |
C3A—C8A | 1.497 (5) | C8A—H8B | 0.9600 |
C3A—C4A | 1.390 (3) | C8A—H8A | 0.9600 |
C3B—C8B | 1.52 (2) | C8A—H8C | 0.9600 |
C3B—C4B | 1.39 (3) | C8B—H8D | 0.9600 |
C4A—C5A | 1.390 (4) | C8B—H8F | 0.9600 |
C4B—C5B | 1.39 (2) | C8B—H8E | 0.9600 |
C5A—C6A | 1.390 (3) | C11—H11 | 0.9300 |
C5B—C6B | 1.39 (2) | C12—H12 | 0.9300 |
C9—C14 | 1.392 (4) | C13—H13 | 0.9300 |
C9—C10 | 1.395 (3) | C14—H14 | 0.9300 |
C10—C15 | 1.491 (4) | C15—H15B | 0.9700 |
C10—C11 | 1.384 (4) | C15—H15A | 0.9700 |
C11—C12 | 1.379 (4) | ||
O1···N1 | 2.904 (3) | H1A···H1Ai | 2.5400 |
O1···C15i | 3.307 (3) | H1A···C15ii | 3.0300 |
O1···O1ii | 2.796 (2) | H4A···H8B | 2.2900 |
O1···O1i | 2.796 (2) | H4B···H8E | 2.3500 |
O1···H1 | 2.3500 | H5A···C12iv | 3.0700 |
O1···H1Ai | 2.0000 | H6A···C13iv | 3.0800 |
N1···O1 | 2.904 (3) | H7A···C8A | 2.9900 |
N1···H7B | 2.3700 | H7A···H8Cviii | 2.3500 |
N1···H15B | 2.7900 | H7A···C8Aviii | 2.9200 |
N1···H7E | 2.8600 | H7A···H8C | 2.5400 |
N1···H7F | 2.0500 | H7B···N1 | 2.3700 |
C2B···C14 | 3.30 (2) | H7B···H1 | 2.5600 |
C6A···C14 | 3.439 (4) | H7B···C9 | 2.8600 |
C7A···C9 | 3.530 (5) | H7C···C1Avi | 3.0600 |
C7B···C9 | 3.073 (19) | H7C···C8A | 2.7400 |
C7B···C14iii | 3.55 (2) | H7C···H1vi | 2.3600 |
C7B···C14 | 3.25 (2) | H7C···H8A | 2.4500 |
C7B···C13iv | 3.17 (2) | H7D···H13iv | 2.4000 |
C7B···C14iv | 3.38 (2) | H7D···C14iv | 3.0100 |
C8B···C12iv | 3.44 (2) | H7D···H8D | 2.1500 |
C8B···C8Bv | 3.24 (2) | H7D···C12iv | 2.9100 |
C9···C7B | 3.073 (19) | H7D···C8B | 2.6000 |
C9···C7A | 3.530 (5) | H7D···C13iv | 2.4600 |
C12···C8Biv | 3.44 (2) | H7E···C14 | 2.8200 |
C13···C7Biv | 3.17 (2) | H7E···H14 | 2.4700 |
C14···C7B | 3.25 (2) | H7E···C9 | 3.0100 |
C14···C7Biv | 3.38 (2) | H7E···N1 | 2.8600 |
C14···C7Bvi | 3.55 (2) | H7E···C14iv | 2.9900 |
C14···C6A | 3.439 (4) | H7E···H13vii | 2.4500 |
C14···C2B | 3.30 (2) | H7E···C7Biv | 3.0900 |
C15···O1ii | 3.307 (3) | H7E···H7Eiv | 2.3000 |
C1A···H7Ciii | 3.0600 | H7F···C9 | 2.6600 |
C1A···H14 | 2.5700 | H7F···C14iii | 2.7400 |
C1B···H14 | 2.6000 | H7F···N1 | 2.0500 |
C2B···H14 | 2.7900 | H7F···H1 | 2.3500 |
C5A···H13vii | 3.0000 | H7F···H14iii | 2.1200 |
C5A···H8Aiii | 3.0600 | H8A···H7C | 2.4500 |
C6A···H13vii | 3.0800 | H8A···C5Avi | 3.0600 |
C6A···H14 | 2.9700 | H8A···C7A | 2.9400 |
C7A···H8C | 2.7800 | H8B···H4A | 2.2900 |
C7A···H1 | 3.0700 | H8B···H11xi | 2.5500 |
C7A···H8Cviii | 3.0700 | H8C···C7A | 2.7800 |
C7A···H8A | 2.9400 | H8C···H7A | 2.5400 |
C7A···H1vi | 3.0300 | H8C···C7Aviii | 3.0700 |
C7B···H1 | 2.9700 | H8C···H7Aviii | 2.3500 |
C7B···H8D | 2.7700 | H8D···C12iv | 2.8400 |
C7B···H7Eiv | 3.0900 | H8D···C7B | 2.7700 |
C7B···H14iii | 2.8200 | H8D···H7D | 2.1500 |
C7B···H14 | 2.9500 | H8D···H12iv | 2.6000 |
C7B···H8F | 3.0000 | H8E···H8Ev | 2.4400 |
C8A···H7Aviii | 2.9200 | H8E···H4B | 2.3500 |
C8A···H7C | 2.7400 | H8E···C8Bv | 2.7300 |
C8A···H7A | 2.9900 | H8E···C11ix | 2.9500 |
C8B···H8Fv | 3.0900 | H8E···H11ix | 2.3400 |
C8B···H11ix | 2.9100 | H8E···H8Fv | 2.3400 |
C8B···H12vii | 3.0500 | H8F···C12vii | 2.8700 |
C8B···H8Ev | 2.7300 | H8F···C13vii | 2.9200 |
C8B···H7D | 2.6000 | H8F···C7B | 3.0000 |
C9···H7B | 2.8600 | H8F···C8Bv | 3.0900 |
C9···H7E | 3.0100 | H8F···H8Ev | 2.3400 |
C9···H7F | 2.6600 | H8F···H12vii | 2.2900 |
C11···H8Ex | 2.9500 | H8F···H13vii | 2.3900 |
C12···H5Aiv | 3.0700 | H11···H15A | 2.3200 |
C12···H8Div | 2.8400 | H11···H8Ex | 2.3400 |
C12···H15Bvi | 3.0700 | H11···H8Bxii | 2.5500 |
C12···H7Div | 2.9100 | H11···C8Bx | 2.9100 |
C12···H8Fvii | 2.8700 | H12···H8Div | 2.6000 |
C13···H6Aiv | 3.0800 | H12···C8Bvii | 3.0500 |
C13···H8Fvii | 2.9200 | H12···H8Fvii | 2.2900 |
C13···H15Bvi | 2.9700 | H13···C5Avii | 3.0000 |
C13···H7Div | 2.4600 | H13···C6Avii | 3.0800 |
C14···H15Bvi | 3.0000 | H13···H8Fvii | 2.3900 |
C14···H7E | 2.8200 | H13···H7Div | 2.4000 |
C14···H7Fvi | 2.7400 | H13···H7Evii | 2.4500 |
C14···H7Div | 3.0100 | H14···C1A | 2.5700 |
C14···H7Eiv | 2.9900 | H14···C2B | 2.7900 |
C15···H1 | 2.4600 | H14···C6A | 2.9700 |
C15···H1Ai | 3.0300 | H14···C1B | 2.6000 |
H1···C15 | 2.4600 | H14···H7Fvi | 2.1200 |
H1···H7Ciii | 2.3600 | H14···H7E | 2.4700 |
H1···H15B | 2.3200 | H14···C7B | 2.9500 |
H1···H7B | 2.5600 | H14···C7Bvi | 2.8200 |
H1···H7F | 2.3500 | H15A···H11 | 2.3200 |
H1···C7Aiii | 3.0300 | H15B···C13iii | 2.9700 |
H1···C7A | 3.0700 | H15B···C14iii | 3.0000 |
H1···C7B | 2.9700 | H15B···H1 | 2.3200 |
H1···O1 | 2.3500 | H15B···C12iii | 3.0700 |
H1A···O1ii | 2.0000 | H15B···N1 | 2.7900 |
H1A···H1Aii | 2.5400 | ||
C15—O1—H1A | 109.00 | C4A—C5A—H5A | 120.00 |
C1B—N1—C9 | 120.2 (9) | C6A—C5A—H5A | 120.00 |
C1A—N1—C9 | 122.6 (2) | C4B—C5B—H5B | 120.00 |
C1B—N1—H1 | 116.00 | C6B—C5B—H5B | 120.00 |
C1A—N1—H1 | 119.00 | C5A—C6A—H6A | 120.00 |
C9—N1—H1 | 119.00 | C1A—C6A—H6A | 120.00 |
N1—C1A—C6A | 121.5 (3) | C1B—C6B—H6B | 120.00 |
C2A—C1A—C6A | 120.00 (19) | C5B—C6B—H6B | 120.00 |
N1—C1A—C2A | 118.5 (2) | C2A—C7A—H7C | 109.00 |
C2B—C1B—C6B | 120.2 (16) | C2A—C7A—H7B | 109.00 |
N1—C1B—C2B | 105.3 (17) | C2A—C7A—H7A | 109.00 |
N1—C1B—C6B | 134.4 (14) | H7B—C7A—H7C | 109.00 |
C1A—C2A—C3A | 120.0 (2) | H7A—C7A—H7B | 109.00 |
C3A—C2A—C7A | 119.9 (2) | H7A—C7A—H7C | 109.00 |
C1A—C2A—C7A | 120.0 (2) | C2B—C7B—H7D | 110.00 |
C1B—C2B—C7B | 118.3 (18) | H7E—C7B—H7F | 109.00 |
C1B—C2B—C3B | 120 (2) | C2B—C7B—H7E | 110.00 |
C3B—C2B—C7B | 121.8 (18) | C2B—C7B—H7F | 110.00 |
C2A—C3A—C4A | 120.0 (2) | H7D—C7B—H7E | 109.00 |
C4A—C3A—C8A | 118.7 (2) | H7D—C7B—H7F | 109.00 |
C2A—C3A—C8A | 121.4 (2) | C3A—C8A—H8C | 109.00 |
C2B—C3B—C4B | 120.1 (16) | H8A—C8A—H8B | 109.00 |
C2B—C3B—C8B | 120.2 (18) | C3A—C8A—H8B | 109.00 |
C4B—C3B—C8B | 119.7 (14) | C3A—C8A—H8A | 109.00 |
C3A—C4A—C5A | 120.01 (18) | H8A—C8A—H8C | 109.00 |
C3B—C4B—C5B | 120.0 (14) | H8B—C8A—H8C | 109.00 |
C4A—C5A—C6A | 120.0 (2) | C3B—C8B—H8F | 109.00 |
C4B—C5B—C6B | 120.1 (16) | C3B—C8B—H8D | 110.00 |
C1A—C6A—C5A | 120.0 (3) | C3B—C8B—H8E | 110.00 |
C1B—C6B—C5B | 119.9 (15) | H8E—C8B—H8F | 109.00 |
N1—C9—C10 | 118.8 (2) | H8D—C8B—H8F | 109.00 |
C10—C9—C14 | 119.5 (2) | H8D—C8B—H8E | 110.00 |
N1—C9—C14 | 121.7 (2) | C10—C11—H11 | 119.00 |
C9—C10—C11 | 118.2 (2) | C12—C11—H11 | 119.00 |
C11—C10—C15 | 120.7 (2) | C11—C12—H12 | 120.00 |
C9—C10—C15 | 120.9 (2) | C13—C12—H12 | 120.00 |
C10—C11—C12 | 121.9 (2) | C12—C13—H13 | 120.00 |
C11—C12—C13 | 119.1 (3) | C14—C13—H13 | 120.00 |
C12—C13—C14 | 120.6 (3) | C9—C14—H14 | 120.00 |
C9—C14—C13 | 120.7 (2) | C13—C14—H14 | 120.00 |
O1—C15—C10 | 110.6 (2) | O1—C15—H15B | 110.00 |
C3A—C4A—H4A | 120.00 | H15A—C15—H15B | 108.00 |
C5A—C4A—H4A | 120.00 | C10—C15—H15A | 110.00 |
C5B—C4B—H4B | 120.00 | C10—C15—H15B | 110.00 |
C3B—C4B—H4B | 120.00 | O1—C15—H15A | 110.00 |
C9—N1—C1A—C2A | 98.1 (3) | C3A—C4A—C5A—C6A | 0.0 (4) |
C9—N1—C1A—C6A | −82.7 (4) | C4A—C5A—C6A—C1A | 0.0 (4) |
C1A—N1—C9—C10 | 179.0 (3) | N1—C9—C10—C11 | −179.3 (3) |
C1A—N1—C9—C14 | −1.2 (4) | N1—C9—C10—C15 | −3.0 (4) |
N1—C1A—C2A—C3A | 179.2 (3) | C14—C9—C10—C11 | 0.9 (4) |
N1—C1A—C2A—C7A | −4.4 (4) | C14—C9—C10—C15 | 177.2 (2) |
C6A—C1A—C2A—C3A | 0.0 (4) | N1—C9—C14—C13 | 179.3 (3) |
C6A—C1A—C2A—C7A | 176.4 (3) | C10—C9—C14—C13 | −0.9 (4) |
N1—C1A—C6A—C5A | −179.2 (3) | C9—C10—C11—C12 | −0.3 (4) |
C2A—C1A—C6A—C5A | 0.0 (4) | C15—C10—C11—C12 | −176.5 (3) |
C1A—C2A—C3A—C4A | 0.0 (4) | C9—C10—C15—O1 | 62.0 (3) |
C1A—C2A—C3A—C8A | 179.5 (3) | C11—C10—C15—O1 | −121.8 (3) |
C7A—C2A—C3A—C4A | −176.4 (3) | C10—C11—C12—C13 | −0.3 (5) |
C7A—C2A—C3A—C8A | 3.1 (4) | C11—C12—C13—C14 | 0.4 (5) |
C2A—C3A—C4A—C5A | 0.0 (4) | C12—C13—C14—C9 | 0.3 (4) |
C8A—C3A—C4A—C5A | −179.5 (3) |
Symmetry codes: (i) −x+1/2, y+1/2, −z+1/2; (ii) −x+1/2, y−1/2, −z+1/2; (iii) x, y−1, z; (iv) −x, −y, −z; (v) −x, y, −z−1/2; (vi) x, y+1, z; (vii) −x, −y+1, −z; (viii) −x+1/2, −y+1/2, −z; (ix) x, −y, z−1/2; (x) x, −y, z+1/2; (xi) x, −y+1, z−1/2; (xii) x, −y+1, z+1/2. |
Cg1 and Cg2 are the centroids of the C1A—C6A and C9—C14 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1 | 0.86 | 2.35 | 2.904 (3) | 123 |
O1—H1A···O1ii | 0.82 | 2.00 | 2.796 (2) | 163 |
C8A—H8A···Cg1vi | 0.96 | 2.88 | 3.783 (4) | 157 |
C15—H15B···Cg2iii | 0.97 | 2.77 | 3.634 (3) | 148 |
Symmetry codes: (ii) −x+1/2, y−1/2, −z+1/2; (iii) x, y−1, z; (vi) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C15H17NO |
Mr | 227.30 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 296 |
a, b, c (Å) | 26.819 (2), 5.0317 (4), 21.4156 (15) |
β (°) | 118.198 (3) |
V (Å3) | 2547.0 (3) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.07 |
Crystal size (mm) | 0.34 × 0.25 × 0.22 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.966, 0.975 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9889, 2298, 1342 |
Rint | 0.051 |
(sin θ/λ)max (Å−1) | 0.600 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.052, 0.150, 1.03 |
No. of reflections | 2298 |
No. of parameters | 160 |
No. of restraints | 3 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.21, −0.16 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Cg1 and Cg2 are the centroids of the C1A—C6A and C9—C14 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1 | 0.86 | 2.35 | 2.904 (3) | 123 |
O1—H1A···O1i | 0.82 | 2.00 | 2.796 (2) | 163 |
C8A—H8A···Cg1ii | 0.96 | 2.88 | 3.783 (4) | 157 |
C15—H15B···Cg2iii | 0.97 | 2.77 | 3.634 (3) | 148 |
Symmetry codes: (i) −x+1/2, y−1/2, −z+1/2; (ii) x, y+1, z; (iii) x, y−1, z. |
Acknowledgements
The authors acknowledge the provision of funds for the purchase of the diffractometer and encouragement by Dr Muhammad Akram Chaudhary, Vice Chancellor, University of Sargodha, Pakistan.
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 (2005). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Bruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Nawaz, H., Khawar Rauf, M., Ebihara, M. & Badshah, A. (2007). Acta Cryst. E63, o1658–o1659. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. 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 title compound (I, Fig. 1) is an important intermediate in our research related to the synthesis of pharmaceutically important derivatives of commonly used drugs. In this context, the crystal structure of a compound related to (I), i.e. methyl 2-(2,3-dimethylanilino)benzoate (Nawaz et al., 2007), has been published recently.
In (I), the 2,3-dimethylphenyl group is disordered over two sites with an occupancy ratio of 0.869 (3):0.131 (3). The (2,3-dimethylphenyl)amino groups A (C1A—C8A/N1) and B (C1B—C8B/N1) are each planar with r. m. s. deviation of 0.0214 and 0.0303 Å, respectively. The dihedral angle between A/B is 2.4 (6) °. The dihedral angles between A/C and B/C are 83.16 (6) and 81.0 (3) °, respectively; C is the least-square plane through the benzene ring. An S(6) ring motif (Bernstein et al., 1995) is formed due to intramolecular H-bond of the type N—H···O (Fig. 1). The molecules associate into supramolecular chains (Fig. 2) via H-bonding of the type O—H···O along the b axis. The presence of C—H···π interactions (Table 1) also play an important role in stabilizing the crystal structure.