organic compounds
N-[3-(Dimethylamino)propyl]-N′-(2-hydroxy-5-methylphenyl)oxamide
aMarine Drug and Food Institute, Ocean University of China, Qingdao, Shandong 266003, People's Republic of China, and bKey Laboratory of Marine Drugs, Chinese Ministry of Education, Ocean University of China, Qingdao, People's Republic of China
*Correspondence e-mail: yantuanli@ouc.edu.cn
In the title compound, C14H21N3O3, the oxamide group has a transoid conformation. In the crystal, the molecules are connected by N—H⋯O and O—H⋯N hydrogen bonds into a double chain running along the b axis.
Related literature
For the use of N,N′-bis(substituted)oxamides in the synthesis of nuclear complexes, see: Ojima & Nonoyama (1988); Ruiz et al. (1999). For related compounds, see: Han et al. (2007); Martinez et al. (1998); Yue et al. (2012).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2002); cell SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP (Siemens, 1994); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536812007957/bt5821sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812007957/bt5821Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812007957/bt5821Isup3.cml
All reagents were of AR grade and obtained commercially without further purification. The title compound was prepared according to the method proposed by Han et al. (2007). A tetrahydrofuran (THF) solution (8 ml) of ethyl oxalyl chloride (1.11 ml, 10 mmol) was added dropwise into a THF solution (50 ml) of 2-amino-4-methylphenol (1.23 g, 10 mmol) with continuous stirring. The mixture was stirred quickly for 1 h and became clear. Then 20 ml ethanol was further added and the mixture was added dropwise into the solution (10 ml) of 3-dimethylamino-propylamine (1.02 g, 10 mmol) with stirring and kept the temperature at 273 K for 9 h. The title compound was precipitated as a white powder and washed with ethanol for several times and dried under vacuum. Yield: 1.83 g (66%). Colourless crystals of compound with the suitable size for X-ray analysis were obtained from an ethanol/water (1:1) mixture by slow evaporation for one week at room temperature.
Anal. Calcd. for C14H21N3O3 (%): C, 60.20; H, 7.58; N, 15.04. Found: C, 60.33; H, 7.65; N, 15.00.
All H atoms were found in a difference Fourier map. Those bonded to N and O were freely refined with the O1—H1A bond restrained to a length of 0.86 (2) Å. Other H atoms were placed in calculated positions, with C—H = 0.93 (aromatic), 0.97 (methylene) and 0.96 (methyl), and refined using a riding model with Uiso(H) = 1.2UeqC or 1.5UeqC(methyl).
Data collection: SMART (Bruker, 2002); cell
SAINT (Bruker, 2002); data reduction: SAINT (Bruker, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP (Siemens, 1994); software used to prepare material for publication: WinGX (Farrugia, 1999).C14H21N3O3 | F(000) = 600 |
Mr = 279.34 | Dx = 1.191 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2107 reflections |
a = 11.542 (2) Å | θ = 2.5–23.3° |
b = 10.304 (2) Å | µ = 0.09 mm−1 |
c = 13.860 (3) Å | T = 296 K |
β = 109.16 (3)° | Block, colourless |
V = 1557.2 (5) Å3 | 0.27 × 0.24 × 0.17 mm |
Z = 4 |
Bruker APEX diffractometer | 3099 independent reflections |
Radiation source: fine-focus sealed tube | 2093 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
ϕ and ω scans | θmax = 26.1°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −6→14 |
Tmin = 0.977, Tmax = 0.986 | k = −12→12 |
7686 measured reflections | l = −17→12 |
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)] = 0.053 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.151 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | w = 1/[σ2(Fo2) + (0.068P)2 + 0.3954P] where P = (Fo2 + 2Fc2)/3 |
3099 reflections | (Δ/σ)max < 0.001 |
196 parameters | Δρmax = 0.30 e Å−3 |
1 restraint | Δρmin = −0.26 e Å−3 |
C14H21N3O3 | V = 1557.2 (5) Å3 |
Mr = 279.34 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.542 (2) Å | µ = 0.09 mm−1 |
b = 10.304 (2) Å | T = 296 K |
c = 13.860 (3) Å | 0.27 × 0.24 × 0.17 mm |
β = 109.16 (3)° |
Bruker APEX diffractometer | 3099 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2093 reflections with I > 2σ(I) |
Tmin = 0.977, Tmax = 0.986 | Rint = 0.022 |
7686 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 1 restraint |
wR(F2) = 0.151 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | Δρmax = 0.30 e Å−3 |
3099 reflections | Δρmin = −0.26 e Å−3 |
196 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 | ||
O1 | 0.78563 (15) | 0.54467 (14) | 0.12601 (15) | 0.0756 (5) | |
O2 | 0.52711 (14) | 0.16017 (13) | 0.05547 (12) | 0.0675 (4) | |
O3 | 0.81264 (15) | 0.18892 (16) | 0.01920 (14) | 0.0812 (5) | |
N1 | 0.66500 (17) | 0.32727 (16) | 0.08912 (13) | 0.0551 (4) | |
N2 | 0.67544 (19) | 0.02499 (17) | −0.02835 (13) | 0.0606 (5) | |
N3 | 0.92876 (16) | −0.24706 (17) | 0.16828 (17) | 0.0720 (6) | |
C1 | 0.67333 (18) | 0.54785 (18) | 0.13783 (15) | 0.0535 (5) | |
C2 | 0.60784 (17) | 0.43098 (17) | 0.12124 (14) | 0.0491 (5) | |
C3 | 0.49425 (19) | 0.4244 (2) | 0.13394 (15) | 0.0574 (5) | |
H3A | 0.4521 | 0.3459 | 0.1235 | 0.069* | |
C4 | 0.4419 (2) | 0.5333 (2) | 0.16214 (16) | 0.0623 (5) | |
C5 | 0.5060 (2) | 0.6490 (2) | 0.17547 (15) | 0.0617 (6) | |
H5 | 0.4715 | 0.7234 | 0.1927 | 0.074* | |
C6 | 0.62038 (19) | 0.65640 (19) | 0.16368 (15) | 0.0587 (5) | |
H6 | 0.6618 | 0.7353 | 0.1733 | 0.070* | |
C7 | 0.3173 (2) | 0.5254 (3) | 0.1756 (3) | 0.0982 (9) | |
H7A | 0.3224 | 0.4715 | 0.2333 | 0.147* | |
H7B | 0.2593 | 0.4890 | 0.1152 | 0.147* | |
H7C | 0.2912 | 0.6109 | 0.1867 | 0.147* | |
C8 | 0.62327 (18) | 0.20947 (18) | 0.05512 (14) | 0.0522 (5) | |
C9 | 0.7136 (2) | 0.1393 (2) | 0.01338 (15) | 0.0568 (5) | |
C10 | 0.7491 (3) | −0.0559 (2) | −0.07135 (18) | 0.0756 (7) | |
H10A | 0.8154 | −0.0044 | −0.0798 | 0.091* | |
H10B | 0.6987 | −0.0857 | −0.1384 | 0.091* | |
C11 | 0.8022 (2) | −0.1719 (2) | −0.00525 (19) | 0.0739 (7) | |
H11A | 0.8523 | −0.2210 | −0.0365 | 0.089* | |
H11B | 0.7358 | −0.2277 | −0.0022 | 0.089* | |
C12 | 0.8800 (2) | −0.1347 (2) | 0.10290 (19) | 0.0692 (6) | |
H12A | 0.9478 | −0.0812 | 0.0999 | 0.083* | |
H12B | 0.8306 | −0.0833 | 0.1333 | 0.083* | |
C13 | 1.0343 (3) | −0.3023 (3) | 0.1486 (4) | 0.1352 (16) | |
H13A | 1.0639 | −0.3754 | 0.1927 | 0.203* | |
H13B | 1.0979 | −0.2381 | 0.1613 | 0.203* | |
H13C | 1.0112 | −0.3299 | 0.0787 | 0.203* | |
C14 | 0.9619 (3) | −0.2082 (3) | 0.2779 (2) | 0.1081 (10) | |
H14A | 1.0234 | −0.1416 | 0.2926 | 0.162* | |
H14B | 0.9933 | −0.2822 | 0.3206 | 0.162* | |
H14C | 0.8904 | −0.1759 | 0.2908 | 0.162* | |
H1 | 0.732 (2) | 0.343 (2) | 0.0811 (16) | 0.062 (7)* | |
H2 | 0.599 (2) | −0.003 (2) | −0.0308 (18) | 0.078 (8)* | |
H1A | 0.824 (2) | 0.622 (2) | 0.139 (2) | 0.109 (10)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0618 (10) | 0.0484 (9) | 0.1234 (14) | −0.0114 (7) | 0.0397 (10) | −0.0126 (9) |
O2 | 0.0639 (9) | 0.0513 (8) | 0.0878 (11) | −0.0137 (7) | 0.0256 (8) | −0.0038 (7) |
O3 | 0.0699 (11) | 0.0702 (10) | 0.1088 (13) | −0.0180 (9) | 0.0365 (10) | −0.0231 (9) |
N1 | 0.0503 (10) | 0.0458 (9) | 0.0663 (11) | −0.0055 (8) | 0.0153 (9) | −0.0007 (8) |
N2 | 0.0644 (12) | 0.0522 (10) | 0.0612 (11) | −0.0056 (9) | 0.0152 (9) | −0.0059 (8) |
N3 | 0.0500 (10) | 0.0522 (10) | 0.1121 (16) | 0.0014 (8) | 0.0245 (10) | 0.0097 (10) |
C1 | 0.0525 (11) | 0.0476 (11) | 0.0571 (11) | −0.0021 (9) | 0.0134 (9) | 0.0028 (9) |
C2 | 0.0503 (11) | 0.0444 (10) | 0.0477 (10) | −0.0003 (8) | 0.0094 (8) | 0.0034 (8) |
C3 | 0.0544 (12) | 0.0572 (12) | 0.0576 (12) | −0.0071 (9) | 0.0142 (10) | 0.0030 (9) |
C4 | 0.0556 (12) | 0.0699 (14) | 0.0602 (12) | 0.0021 (11) | 0.0176 (10) | 0.0001 (10) |
C5 | 0.0642 (13) | 0.0608 (13) | 0.0562 (12) | 0.0106 (11) | 0.0144 (10) | −0.0013 (10) |
C6 | 0.0639 (13) | 0.0459 (11) | 0.0620 (12) | −0.0015 (9) | 0.0147 (10) | −0.0016 (9) |
C7 | 0.0717 (17) | 0.106 (2) | 0.128 (2) | −0.0018 (16) | 0.0483 (17) | −0.0125 (19) |
C8 | 0.0538 (12) | 0.0433 (10) | 0.0524 (11) | −0.0039 (9) | 0.0078 (9) | 0.0045 (8) |
C9 | 0.0580 (12) | 0.0503 (11) | 0.0562 (11) | −0.0054 (10) | 0.0109 (10) | 0.0010 (9) |
C10 | 0.1010 (19) | 0.0682 (14) | 0.0629 (14) | −0.0081 (13) | 0.0340 (13) | −0.0143 (11) |
C11 | 0.0895 (17) | 0.0542 (13) | 0.0863 (16) | −0.0011 (12) | 0.0402 (14) | −0.0182 (12) |
C12 | 0.0598 (13) | 0.0476 (11) | 0.0948 (17) | −0.0030 (10) | 0.0182 (12) | −0.0023 (11) |
C13 | 0.0772 (19) | 0.096 (2) | 0.253 (5) | 0.0301 (17) | 0.083 (3) | 0.056 (3) |
C14 | 0.097 (2) | 0.096 (2) | 0.100 (2) | 0.0002 (17) | −0.0096 (17) | 0.0116 (17) |
O1—C1 | 1.359 (3) | C5—H5 | 0.9300 |
O2—C8 | 1.222 (2) | C6—H6 | 0.9300 |
O3—C9 | 1.231 (2) | C7—H7A | 0.9600 |
N1—C2 | 1.403 (3) | C7—H7B | 0.9600 |
N1—C8 | 1.334 (2) | C7—H7C | 0.9600 |
N2—C9 | 1.322 (3) | C8—C9 | 1.530 (3) |
O1—H1A | 0.904 (17) | C10—C11 | 1.509 (3) |
N1—H1 | 0.83 (2) | C10—H10A | 0.9700 |
N2—C10 | 1.451 (3) | C10—H10B | 0.9700 |
N2—H2 | 0.92 (3) | C11—C12 | 1.522 (3) |
N3—C13 | 1.450 (3) | C11—H11A | 0.9700 |
N3—C12 | 1.464 (3) | C11—H11B | 0.9700 |
N3—C14 | 1.494 (4) | C12—H12A | 0.9700 |
C1—C6 | 1.377 (3) | C12—H12B | 0.9700 |
C1—C2 | 1.400 (3) | C13—H13A | 0.9600 |
C2—C3 | 1.381 (3) | C13—H13B | 0.9600 |
C3—C4 | 1.390 (3) | C13—H13C | 0.9600 |
C3—H3A | 0.9300 | C14—H14A | 0.9600 |
C4—C5 | 1.383 (3) | C14—H14B | 0.9600 |
C4—C7 | 1.511 (3) | C14—H14C | 0.9600 |
C5—C6 | 1.385 (3) | ||
C1—O1—H1A | 112.6 (18) | O2—C8—C9 | 122.52 (18) |
C8—N1—C2 | 130.73 (19) | N1—C8—C9 | 110.60 (18) |
C8—N1—H1 | 112.0 (15) | O3—C9—N2 | 124.6 (2) |
C2—N1—H1 | 116.6 (15) | O3—C9—C8 | 120.83 (19) |
C9—N2—C10 | 122.4 (2) | N2—C9—C8 | 114.58 (19) |
C9—N2—H2 | 118.2 (16) | N2—C10—C11 | 112.48 (19) |
C10—N2—H2 | 119.4 (16) | N2—C10—H10A | 109.1 |
C13—N3—C12 | 111.7 (2) | C11—C10—H10A | 109.1 |
C13—N3—C14 | 110.2 (3) | N2—C10—H10B | 109.1 |
C12—N3—C14 | 109.6 (2) | C11—C10—H10B | 109.1 |
O1—C1—C6 | 124.96 (18) | H10A—C10—H10B | 107.8 |
O1—C1—C2 | 116.38 (17) | C10—C11—C12 | 112.92 (18) |
C6—C1—C2 | 118.66 (19) | C10—C11—H11A | 109.0 |
C3—C2—C1 | 120.35 (18) | C12—C11—H11A | 109.0 |
C3—C2—N1 | 124.63 (17) | C10—C11—H11B | 109.0 |
C1—C2—N1 | 114.99 (18) | C12—C11—H11B | 109.0 |
C2—C3—C4 | 120.99 (19) | H11A—C11—H11B | 107.8 |
C2—C3—H3A | 119.5 | N3—C12—C11 | 113.16 (18) |
C4—C3—H3A | 119.5 | N3—C12—H12A | 108.9 |
C5—C4—C3 | 118.1 (2) | C11—C12—H12A | 108.9 |
C5—C4—C7 | 121.2 (2) | N3—C12—H12B | 108.9 |
C3—C4—C7 | 120.7 (2) | C11—C12—H12B | 108.9 |
C4—C5—C6 | 121.34 (19) | H12A—C12—H12B | 107.8 |
C4—C5—H5 | 119.3 | N3—C13—H13A | 109.5 |
C6—C5—H5 | 119.3 | N3—C13—H13B | 109.5 |
C1—C6—C5 | 120.51 (19) | H13A—C13—H13B | 109.5 |
C1—C6—H6 | 119.7 | N3—C13—H13C | 109.5 |
C5—C6—H6 | 119.7 | H13A—C13—H13C | 109.5 |
C4—C7—H7A | 109.5 | H13B—C13—H13C | 109.5 |
C4—C7—H7B | 109.5 | N3—C14—H14A | 109.5 |
H7A—C7—H7B | 109.5 | N3—C14—H14B | 109.5 |
C4—C7—H7C | 109.5 | H14A—C14—H14B | 109.5 |
H7A—C7—H7C | 109.5 | N3—C14—H14C | 109.5 |
H7B—C7—H7C | 109.5 | H14A—C14—H14C | 109.5 |
O2—C8—N1 | 126.9 (2) | H14B—C14—H14C | 109.5 |
C8—N1—C2—C3 | 7.4 (3) | O1—C1—C6—C5 | −178.97 (19) |
C8—N1—C2—C1 | −170.86 (19) | C2—C1—C6—C5 | 1.6 (3) |
C9—N2—C10—C11 | 106.7 (2) | C4—C5—C6—C1 | 0.2 (3) |
N2—C10—C11—C12 | −57.1 (3) | C2—N1—C8—O2 | −9.1 (3) |
O1—C1—C2—C3 | 178.43 (18) | C2—N1—C8—C9 | 170.82 (19) |
C6—C1—C2—C3 | −2.1 (3) | C10—N2—C9—O3 | 0.8 (3) |
O1—C1—C2—N1 | −3.2 (3) | C10—N2—C9—C8 | −179.59 (18) |
C6—C1—C2—N1 | 176.24 (17) | O2—C8—C9—O3 | −176.04 (19) |
C1—C2—C3—C4 | 0.8 (3) | N1—C8—C9—O3 | 4.0 (3) |
N1—C2—C3—C4 | −177.40 (19) | O2—C8—C9—N2 | 4.3 (3) |
C2—C3—C4—C5 | 1.1 (3) | N1—C8—C9—N2 | −175.62 (17) |
C2—C3—C4—C7 | 179.8 (2) | C13—N3—C12—C11 | 78.6 (3) |
C3—C4—C5—C6 | −1.6 (3) | C14—N3—C12—C11 | −158.9 (2) |
C7—C4—C5—C6 | 179.7 (2) | C10—C11—C12—N3 | 178.2 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O2i | 0.92 (3) | 2.13 (3) | 2.945 (2) | 147 (2) |
O1—H1A···N3ii | 0.90 (2) | 1.76 (2) | 2.654 (2) | 168 (3) |
Symmetry codes: (i) −x+1, −y, −z; (ii) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C14H21N3O3 |
Mr | 279.34 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 11.542 (2), 10.304 (2), 13.860 (3) |
β (°) | 109.16 (3) |
V (Å3) | 1557.2 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.27 × 0.24 × 0.17 |
Data collection | |
Diffractometer | Bruker APEX diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.977, 0.986 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7686, 3099, 2093 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.620 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.151, 1.02 |
No. of reflections | 3099 |
No. of parameters | 196 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.30, −0.26 |
Computer programs: SMART (Bruker, 2002), SAINT (Bruker, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP (Siemens, 1994), WinGX (Farrugia, 1999).
O1—C1 | 1.359 (3) | N1—C2 | 1.403 (3) |
O2—C8 | 1.222 (2) | N1—C8 | 1.334 (2) |
O3—C9 | 1.231 (2) | N2—C9 | 1.322 (3) |
C8—N1—C2—C3 | 7.4 (3) | C9—N2—C10—C11 | 106.7 (2) |
C8—N1—C2—C1 | −170.86 (19) | N2—C10—C11—C12 | −57.1 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O2i | 0.92 (3) | 2.13 (3) | 2.945 (2) | 147 (2) |
O1—H1A···N3ii | 0.904 (17) | 1.764 (18) | 2.654 (2) | 168 (3) |
Symmetry codes: (i) −x+1, −y, −z; (ii) x, y+1, z. |
Acknowledgements
This project was supported by the Natural Science Foundation of China (grant No. 21071133) and the Natural Science Foundation of Qingdao City.
References
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N,N'-bis(substituented)oxamides as multiatom bridging ligands has played an important role in designing and synthesizing polymetallic systems (Ojima & Nonoyama, 1988; Ruiz et al., 1999). Due to the difficulties of synthesis only few dissymmetrical bis-substituented-oxamide ligand has been reported. In order to provide more examples of such ligand, quite recently, we reported the structure of (3-{[N-(5-Chloro-2-hydroxyphenyl)oxamoyl]amino}propyl)dimethylazanium perchlorate (Yue et al.,2012). In continuation of our earlier work, the title compound was synthesized and its structure is reported here.
As shown in Fig. 1, the title compound has a trans-conformation of the oxamide group. The whole compound likes the alphabet `L'. The benzene ring is almost coplanar to the oxamide group [11.44 (9)°], just like that in the compound of N,N'-bis(2-Hydroxyphenyl)oxamide (Martinez et al., 1998). However, the plane through the other substituent group, aminopropyl, is perpendicular to the oxamide plane [83.49 (12)°]. The torsion angle of C9—N2—C10—C11 is 106.7 (2)° (Table 1). And the conformation for the C10—C11 bond is gauche. While in the compound 2-(N'-[3-(Dimethylammonio)propyl)oxamido]benzoate (Han et al., 2007), the corresponding angle is 151.3 (3)° and the conformation is anti.
A centrosymmetric dimer of a pair of the compounds is formed via the hydrogen bonds of the oxamide groups (Fig. 2, Table 2). These dimers are further assembled to a chain parallel to the b-axis through the hydrogen bonds between the phenolic hydroxyl groups and the tertiary amino groups.