organic papers
Acta Cryst.(2007). E63, o1115–o1116 doi:10.1107/S1600536807004692 Bhuiyanet al. C
11H10N2O6
o1115
Acta Crystallographica Section E Structure Reports Online
ISSN 1600-5368
4-(2-Methoxy-4-nitrophenyl)morpholine-3,5-dione
M. Delower H. Bhuiyan,aPaul Jensen,bPeter Turnerband Andrew C. Trya*
aDepartment of Chemistry and Biomolecular
Sciences, Building F7B, Macquarie University, NSW 2109, Australia, andbCrystal Structure
Analysis Facility, School of Chemistry, F11, The University of Sydney, NSW 2006, Australia
Correspondence e-mail: [email protected]
Key indicators
Single-crystal X-ray study
T= 150 K
Mean(C–C) = 0.002 A˚
Rfactor = 0.032
wRfactor = 0.092
Data-to-parameter ratio = 14.1
For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
Received 19 December 2006 Accepted 29 January 2007
#2007 International Union of Crystallography All rights reserved
The crystal structure of the title compound, C11H10N2O6, is
stabilized by C—H interactions.
Comment
The reaction between anilines, or substituted anilines, and either succinic or glutaric acid in polyphosphoric acid (PPA) to afford N-phenyl succinimides and glutarimides was recently reported (Mederski et al., 2003). An analogous reaction between 4-nitroaniline and diglycolic acid failed to afford a cyclic diamide but unexpectedly yielded the first synthesis of 2,8-dinitro Tro¨ger’s base. In contrast, the synthesis of (I) was achieved by reacting 2-methoxy-4-nitroaniline with diglycolic acid in PPA,i.e.the anticipated cyclic diamide product.
We were interested in preparing a range of dinitro Tro¨ger’s base compounds and isolated (I) as a by-product in one of these reactions.
A short contact of 2.838 (2) A˚ exists between N1 and O6 of an adjacent molecule, as shown in Fig. 2. There are two C— H interactions which put this close contact in perspective. H9Ais 2.94 A˚ from the centroid of the benzene ring attached to N1; however, H11Awhich is in contact with the opposite side of the benzene ring is able to approach more closely at 2.76 A˚ from the centroid (symmetry codes for O6 and H9A:x, y 1,z; for H11A: 1 x, y, z). Atoms H9Aand H11Aare, respectively, 2.92 and 2.75 A˚ from the plane of the benzene ring and the close proximity of atom O6 also forces N1 to be pushed 0.104 (2) A˚ away from this plane.
Experimental
evaporated to dryness to yield a pale-yellow solid. The crude material was chromatographed (silica gel, dichloromethane) to afford (I) (546 mg, 34%) as a white solid. A second compound (the 4,10-dimethoxy-2,8-dinitro Tro¨ger’s base analogue, 224 mg, 20%) was subsequently eluted from the column.
Crystal data
C11H10N2O6
Mr= 266.21
Triclinic,P1
a= 7.526 (2) A˚
b= 7.554 (2) A˚
c= 10.259 (3) A˚ = 100.460 (4) = 102.539 (4) = 94.732 (4)
V= 555.3 (3) A˚3
Z= 2
Dx= 1.592 Mg m 3
MoKradiation = 0.13 mm 1
T= 150 (2) K Prism, yellow 0.540.320.29 mm
Data collection
Bruker SMART 1000 CCD diffractometer
!scans
Absorption correction: Gaussian [GAUSSIAN(Coppenset al., 1965) andXPREP
(Siemens, 1995)]
Tmin= 0.939,Tmax= 0.972
5320 measured reflections 2433 independent reflections 2109 reflections withI> 2(I)
Rint= 0.030 max= 27.1
Refinement
Refinement onF2
R[F2> 2(F2)] = 0.032
wR(F2) = 0.092
S= 1.09 2433 reflections 173 parameters
H-atom parameters constrained
w= 1/[2(F
o2) + (0.046P)2
+ 0.1137P]
whereP= (Fo2+ 2Fc2)/3
(/)max< 0.001
max= 0.27 e A˚ 3
min= 0.26 e A˚ 3
H atoms were positioned geometrically, with C—H = 0.95, 0.99 and 0.98 A˚ for aromatic, methylene and methyl H atoms, respectively, and constrained to ride on their parent atoms, withUiso(H) =xUeq(C),
wherex= 1.5 for methyl H andx= 1.2 for all other H atoms. The
methyl group was free to rotate about the C—O bond in the refinement.
Data collection: SMART (Siemens, 1995); cell refinement:
SMART; data reduction: SAINT (Siemens, 1995) and XPREP
(Siemens, 1995); program(s) used to solve structure: SHELXS97
(Sheldrick, 1997); program(s) used to refine structure:SHELXL97
(Sheldrick, 1997); molecular graphics: Xtal3.6 (Hall et al., 1999),
ORTEPII(Johnson, 1976), andWinGX (Farrugia, 1999); software used to prepare material for publication:WinGX.
The authors thank the Australian Research Council for a Discovery Project grant to ACT (No. DP0345180), and Macquarie University for the award of a Macquarie University Research Development grant and the award of an iMURS grant to DHB.
References
Coppens, P., Leiserowitz, L. & Rabinovich, D. (1965).Acta Cryst.18, 1035– 1038.
Farrugia, L. J. (1999).J. Appl. Cryst.32, 837–838.
Hall, S. R., du Boulay, D. J. & Olthof-Hazekamp, R. (1999). Editors.Xtal3.6 System. University of Western Australia, Australia.
Johnson, C. K. (1976).ORTEPII. Report ORNL-5138. Oak Ridge National Laboratory, Tennessee, USA.
Mederski, W. W. K. R., Baumgarth, M., Germann, M., Kux, D. & Weitzel, T. (2003).Tetrahedron Lett.44, 2133–2136.
Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Go¨ttingen, Germany.
[image:2.610.49.298.70.232.2]Siemens (1995).SMART,SAINT and XPREP. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.
Figure 1
[image:2.610.338.544.71.306.2]The molecular structure of (I), showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level.
Figure 2
supporting information
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Acta Cryst. (2007). E63, o1115–o1116
supporting information
Acta Cryst. (2007). E63, o1115–o1116 [https://doi.org/10.1107/S1600536807004692]
4-(2-Methoxy-4-nitrophenyl)morpholine-3,5-dione
M. Delower H. Bhuiyan, Paul Jensen, Peter Turner and Andrew C. Try
4-(2-methoxy-4-nitrophenyl)morpholine-3,5-dione
Crystal data
C11H10N2O6
Mr = 266.21
Triclinic, P1 Hall symbol: -P 1
a = 7.526 (2) Å
b = 7.554 (2) Å
c = 10.259 (3) Å
α = 100.460 (4)°
β = 102.539 (4)°
γ = 94.732 (4)°
V = 555.3 (3) Å3
Z = 2
F(000) = 276
Dx = 1.592 Mg m−3
Melting point: 486 K
Mo Kα radiation, λ = 0.71073 Å Cell parameters from 863 reflections
θ = 3.1–28.2°
µ = 0.13 mm−1
T = 150 K Prism, yellow
0.54 × 0.32 × 0.29 mm
Data collection
Bruker SMART 1000 CCD diffractometer
Radiation source: fine-focus sealed tube Graphite monochromator
ω scans
Absorption correction: gaussian
[GAUSSIAN (Coppens et al., 1965) and XPREP (Siemens, 1995)]
Tmin = 0.939, Tmax = 0.972
5320 measured reflections 2433 independent reflections 2109 reflections with I > 2σ(I)
Rint = 0.030
θmax = 27.1°, θmin = 2.1°
h = −9→9
k = −9→9
l = −13→13
Refinement
Refinement on F2
Least-squares matrix: full
R[F2 > 2σ(F2)] = 0.032
wR(F2) = 0.092
S = 1.09 2433 reflections 173 parameters 0 restraints
Primary atom site location: structure-invariant direct methods
Secondary atom site location: difference Fourier map
Hydrogen site location: inferred from neighbouring sites
H-atom parameters constrained
w = 1/[σ2(F
o2) + (0.046P)2 + 0.1137P]
where P = (Fo2 + 2Fc2)/3
(Δ/σ)max < 0.001
Δρmax = 0.27 e Å−3
Special details
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.
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
x y z Uiso*/Ueq
N1 0.79995 (13) −0.32869 (13) 0.13488 (11) 0.0225 (2)
N2 0.40014 (12) 0.23002 (12) 0.30811 (9) 0.0181 (2)
O1 0.93364 (12) −0.35848 (12) 0.21646 (10) 0.0341 (2)
O2 0.75368 (12) −0.40508 (12) 0.01449 (9) 0.0298 (2)
O3 0.24896 (10) −0.02408 (10) 0.07797 (8) 0.02107 (19)
O4 0.27752 (11) 0.52558 (11) 0.43958 (8) 0.0246 (2)
O5 0.19626 (11) 0.04616 (11) 0.37299 (9) 0.0265 (2)
O6 0.58401 (11) 0.41966 (11) 0.22981 (9) 0.0252 (2)
C1 0.68987 (15) −0.18997 (14) 0.18464 (12) 0.0186 (2)
C2 0.51785 (15) −0.18451 (14) 0.10317 (11) 0.0181 (2)
H2 0.4698 −0.2713 0.0207 0.022*
C3 0.41798 (14) −0.04716 (14) 0.14657 (11) 0.0173 (2)
C4 0.49643 (15) 0.07950 (14) 0.26773 (11) 0.0177 (2)
C5 0.66624 (15) 0.06711 (15) 0.34738 (12) 0.0209 (2)
H5 0.7149 0.1529 0.4303 0.025*
C6 0.76636 (15) −0.07093 (15) 0.30651 (12) 0.0212 (2)
H6 0.8828 −0.0825 0.3606 0.025*
C7 0.24866 (15) 0.19713 (15) 0.36230 (11) 0.0199 (2)
C8 0.15673 (16) 0.36161 (16) 0.40643 (13) 0.0255 (3)
H8A 0.0510 0.3691 0.3319 0.031*
H8B 0.1091 0.3463 0.4869 0.031*
C9 0.35197 (17) 0.55177 (15) 0.32763 (12) 0.0235 (3)
H9A 0.4337 0.6684 0.3533 0.028*
H9B 0.2510 0.5591 0.2496 0.028*
C10 0.45934 (15) 0.39991 (15) 0.28422 (11) 0.0189 (2)
C11 0.15733 (16) −0.16597 (16) −0.03647 (12) 0.0237 (3)
H11A 0.2304 −0.1785 −0.1052 0.036*
H11B 0.0361 −0.1353 −0.0764 0.036*
H11C 0.1431 −0.2807 −0.0057 0.036*
Atomic displacement parameters (Å2)
U11 U22 U33 U12 U13 U23
N1 0.0186 (5) 0.0171 (5) 0.0328 (6) 0.0037 (4) 0.0082 (4) 0.0048 (4)
N2 0.0183 (5) 0.0157 (4) 0.0199 (5) 0.0030 (3) 0.0058 (4) 0.0006 (4)
supporting information
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Acta Cryst. (2007). E63, o1115–o1116
O2 0.0336 (5) 0.0256 (5) 0.0309 (5) 0.0110 (4) 0.0112 (4) 0.0004 (4)
O3 0.0184 (4) 0.0197 (4) 0.0218 (4) 0.0061 (3) 0.0005 (3) −0.0008 (3)
O4 0.0289 (4) 0.0211 (4) 0.0233 (4) 0.0046 (3) 0.0096 (3) −0.0016 (3)
O5 0.0243 (4) 0.0240 (4) 0.0317 (5) −0.0003 (3) 0.0100 (4) 0.0049 (4)
O6 0.0279 (4) 0.0217 (4) 0.0294 (5) 0.0041 (3) 0.0133 (4) 0.0056 (3)
C1 0.0181 (5) 0.0139 (5) 0.0262 (6) 0.0042 (4) 0.0086 (4) 0.0052 (4)
C2 0.0194 (5) 0.0152 (5) 0.0194 (5) 0.0018 (4) 0.0053 (4) 0.0023 (4)
C3 0.0169 (5) 0.0165 (5) 0.0196 (5) 0.0025 (4) 0.0048 (4) 0.0055 (4)
C4 0.0187 (5) 0.0147 (5) 0.0210 (5) 0.0027 (4) 0.0078 (4) 0.0034 (4)
C5 0.0209 (5) 0.0186 (5) 0.0206 (6) 0.0001 (4) 0.0032 (4) 0.0005 (4)
C6 0.0165 (5) 0.0216 (5) 0.0250 (6) 0.0029 (4) 0.0029 (4) 0.0059 (5)
C7 0.0171 (5) 0.0233 (6) 0.0172 (5) 0.0014 (4) 0.0027 (4) 0.0011 (4)
C8 0.0223 (6) 0.0254 (6) 0.0296 (6) 0.0048 (5) 0.0102 (5) 0.0018 (5)
C9 0.0283 (6) 0.0193 (6) 0.0242 (6) 0.0065 (5) 0.0086 (5) 0.0035 (5)
C10 0.0213 (5) 0.0169 (5) 0.0167 (5) 0.0019 (4) 0.0027 (4) 0.0015 (4)
C11 0.0192 (5) 0.0231 (6) 0.0240 (6) 0.0046 (4) −0.0003 (4) −0.0023 (5)
Geometric parameters (Å, º)
N1—O2 1.2251 (14) C2—H2 0.9500
N1—O1 1.2262 (14) C3—C4 1.4019 (15)
N1—C1 1.4756 (14) C4—C5 1.3798 (16)
N2—C7 1.3961 (14) C5—C6 1.3925 (16)
N2—C10 1.4046 (14) C5—H5 0.9500
N2—C4 1.4440 (13) C6—H6 0.9500
O3—C3 1.3551 (13) C7—C8 1.5169 (16)
O3—C11 1.4396 (14) C8—H8A 0.9900
O4—C8 1.4154 (15) C8—H8B 0.9900
O4—C9 1.4198 (15) C9—C10 1.5136 (15)
O5—C7 1.2075 (14) C9—H9A 0.9900
O6—C10 1.2037 (14) C9—H9B 0.9900
C1—C6 1.3774 (16) C11—H11A 0.9800
C1—C2 1.3885 (16) C11—H11B 0.9800
C2—C3 1.3949 (15) C11—H11C 0.9800
O2—N1—O1 124.11 (10) C5—C6—H6 121.3
O2—N1—C1 118.09 (9) O5—C7—N2 121.20 (10)
O1—N1—C1 117.79 (10) O5—C7—C8 122.90 (10)
C7—N2—C10 123.71 (9) N2—C7—C8 115.90 (10)
C7—N2—C4 118.44 (9) O4—C8—C7 112.59 (9)
C10—N2—C4 117.77 (9) O4—C8—H8A 109.1
C3—O3—C11 116.97 (8) C7—C8—H8A 109.1
C8—O4—C9 111.09 (9) O4—C8—H8B 109.1
C6—C1—C2 124.24 (10) C7—C8—H8B 109.1
C6—C1—N1 118.03 (10) H8A—C8—H8B 107.8
C2—C1—N1 117.69 (10) O4—C9—C10 112.13 (9)
C1—C2—C3 117.69 (10) O4—C9—H9A 109.2
C3—C2—H2 121.2 O4—C9—H9B 109.2
O3—C3—C2 124.48 (10) C10—C9—H9B 109.2
O3—C3—C4 116.60 (9) H9A—C9—H9B 107.9
C2—C3—C4 118.91 (10) O6—C10—N2 121.45 (10)
C5—C4—C3 121.61 (10) O6—C10—C9 123.25 (10)
C5—C4—N2 119.05 (10) N2—C10—C9 115.27 (9)
C3—C4—N2 119.30 (9) O3—C11—H11A 109.5
C4—C5—C6 120.11 (10) O3—C11—H11B 109.5
C4—C5—H5 119.9 H11A—C11—H11B 109.5
C6—C5—H5 119.9 O3—C11—H11C 109.5
C1—C6—C5 117.36 (10) H11A—C11—H11C 109.5
C1—C6—H6 121.3 H11B—C11—H11C 109.5
O2—N1—C1—C6 −162.82 (10) N2—C4—C5—C6 −176.34 (10)
O1—N1—C1—C6 16.23 (15) C2—C1—C6—C5 −2.31 (17)
O2—N1—C1—C2 15.20 (15) N1—C1—C6—C5 175.57 (10)
O1—N1—C1—C2 −165.75 (10) C4—C5—C6—C1 0.79 (17)
C6—C1—C2—C3 1.33 (17) C10—N2—C7—O5 175.29 (10)
N1—C1—C2—C3 −176.56 (9) C4—N2—C7—O5 −1.45 (16)
C11—O3—C3—C2 9.19 (15) C10—N2—C7—C8 −4.92 (15)
C11—O3—C3—C4 −172.13 (10) C4—N2—C7—C8 178.34 (9)
C1—C2—C3—O3 179.80 (10) C9—O4—C8—C7 57.74 (13)
C1—C2—C3—C4 1.15 (15) O5—C7—C8—O4 154.73 (11)
O3—C3—C4—C5 178.63 (10) N2—C7—C8—O4 −25.06 (14)
C2—C3—C4—C5 −2.62 (16) C8—O4—C9—C10 −60.01 (12)
O3—C3—C4—N2 −3.40 (15) C7—N2—C10—O6 −175.51 (10)
C2—C3—C4—N2 175.35 (9) C4—N2—C10—O6 1.26 (16)
C7—N2—C4—C5 −106.57 (12) C7—N2—C10—C9 2.73 (15)
C10—N2—C4—C5 76.49 (14) C4—N2—C10—C9 179.49 (9)
C7—N2—C4—C3 75.41 (13) O4—C9—C10—O6 −152.49 (11)
C10—N2—C4—C3 −101.53 (12) O4—C9—C10—N2 29.32 (13)