organic compounds
(2Z)-N-(4-Methoxyphenyl)-2-(4-methoxyphenylimino)-2H-1,4-benzoxazin-3-amine
aDepartment of Environmental Pollution, Environmental Sciences Research Institute, Shahid Beheshti University, G.C., Evin, Tehran 1983963113, Iran, and bDepartment of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran 1983963113, Iran
*Correspondence e-mail: m_mehrdad4@yahoo.com
In the 22H19N3O3, intermolecular C—H⋯O hydrogen bonds link the molecules into a zigzag chain parallel to the face diagonal of the ac plane. The methoxy phenyl rings make a dihdral angle of 32.38 (7)° and form dihedral angles of 0.66 (8) and 24.17 (7)° with the fused benzooxazine ring system.
of the title compound, CRelated literature
For the Baeyer–Villiger oxidation of 1-alkyl-3-arylimino-2-indolinone with m-chloroperbenzoic acid to afford 1-alkyl-4-(arylimino)-1H benzo[d][1,3]oxazin-2(4H)-one, see: Mehrdad et al. (2011); Azizian et al. (2000); Jadidi et al. (2008). For a related structure, see: Asgari et al. (2011).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2005); cell X-AREA; data reduction: X-AREA; 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/S1600536810050294/bt5425sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810050294/bt5425Isup2.hkl
The solution of N-Aryl-3-(Arylimino)-3H-indol-2-amine (1a) (1.0 mmol) in 25 ml CH2Cl2 was cooled to 253K. Then, m-CPBA (1.5 mmol) dissolved in 25 ml CH2Cl2 was added dropwise to the stirred solution of (1a). After stirring for 6 h at 253K, product (2a) was formed (monitoring by TLC). The crude product was poured into water and extracted with CH2Cl2 (60 ml). The organic layer was dried over Na2SO4, and evaporation of the solvent afforded the crude product (2a), which was purified on silica gel by
using 90:10 n-hexane:ethyl acetate as to afford (2a) as a light yellow solid (90%); m.p. = 169–171°C (Mehrdad et al., 2011).All H atoms were positioned geometrically, with N—H=0.86 Å, Cmethyl—H=0.96Å and Caromatic—H=0.93Å and constrained to ride on their parent atoms, with Uiso(H)=1.2Ueq(C,N).
Recently, we reported a Baeyer–Villiger oxidation of 1-alkyl-3-arylimino-2-indolinone with m-chloroperbenzoic acid to afford 1-alkyl-4-(arylimino)-1H benzo[d][1,3]oxazin-2(4H)-one (Azizian et al., 2000; Jadidi et al., 2008). As a continuation of this work, 2-arylimino-N-aryl-2H-benzo[b][1,4]oxazin-3-amines (2) or N-aryl-N-(2-arylamino-3H-indol-3-ylidene)amine N-oxides (3) were obtained in two different temperatures by Baeyer-Villiger oxidation reaction (Fig. 1) of N-aryl-3-(arylimino)-3H-indol-2-amines (1) (Mehrdad et al., 2011). In this paper, we report the structure of (2Z)-2-(4-methoxyphenylimino)-N-(4-methoxyphenyl)- 2H-benzo[b][1,4]oxazin-3-amine (2a). The molecular structure of the title compound is shown in Fig. 2.
The methoxy phenyl rings, A (C2—C7) and B (C16—C21) and benzooxazine ring C (C9—C14/C8/O2/N2/C15) enclose the dihedral angles: A/B = 32.38 (7)°, A/C = 10.66 (8)° and B/C = 24.17 (7)°. Intermolecular C—H···O interactions (Table 1) stabilize the crystal structure.
For the Baeyer–Villiger oxidation of 1-alkyl-3-arylimino-2-indolinone with m-chloroperbenzoic acid to afford 1-alkyl-4-(arylimino)-1H benzo[d][1,3]oxazin-2(4H)-one, see: Mehrdad et al. (2011); Azizian et al. (2000); Jadidi et al. (2008). For a related structure, see: Asgari et al. (2011).
Data collection: X-AREA (Stoe & Cie, 2005); cell
X-AREA (Stoe & Cie, 2005); data reduction: X-AREA (Stoe & Cie, 2005); 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).C22H19N3O3 | F(000) = 784 |
Mr = 373.40 | Dx = 1.369 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 21467 reflections |
a = 14.4225 (14) Å | θ = 1.7–29.3° |
b = 8.0836 (5) Å | µ = 0.09 mm−1 |
c = 16.2749 (14) Å | T = 298 K |
β = 107.263 (7)° | Needle, yellow |
V = 1811.9 (3) Å3 | 0.60 × 0.13 × 0.04 mm |
Z = 4 |
Stoe IPDS II diffractometer | 3190 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.111 |
Graphite monochromator | θmax = 29.3°, θmin = 1.7° |
Detector resolution: 0.15 mm pixels mm-1 | h = −18→19 |
rotation method scans | k = −10→11 |
21467 measured reflections | l = −22→22 |
4893 independent 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)] = 0.083 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.195 | H-atom parameters constrained |
S = 1.15 | w = 1/[σ2(Fo2) + (0.0578P)2 + 0.8502P] where P = (Fo2 + 2Fc2)/3 |
4893 reflections | (Δ/σ)max = 0.002 |
253 parameters | Δρmax = 0.24 e Å−3 |
0 restraints | Δρmin = −0.28 e Å−3 |
C22H19N3O3 | V = 1811.9 (3) Å3 |
Mr = 373.40 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 14.4225 (14) Å | µ = 0.09 mm−1 |
b = 8.0836 (5) Å | T = 298 K |
c = 16.2749 (14) Å | 0.60 × 0.13 × 0.04 mm |
β = 107.263 (7)° |
Stoe IPDS II diffractometer | 3190 reflections with I > 2σ(I) |
21467 measured reflections | Rint = 0.111 |
4893 independent reflections |
R[F2 > 2σ(F2)] = 0.083 | 0 restraints |
wR(F2) = 0.195 | H-atom parameters constrained |
S = 1.15 | Δρmax = 0.24 e Å−3 |
4893 reflections | Δρmin = −0.28 e Å−3 |
253 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 | ||
C1 | −0.0070 (3) | 0.2134 (5) | 0.0453 (2) | 0.0719 (9) | |
H1A | −0.0208 | 0.3142 | 0.0707 | 0.086* | |
H1B | 0.0435 | 0.1542 | 0.0866 | 0.086* | |
H1C | −0.0645 | 0.1464 | 0.0281 | 0.086* | |
C2 | 0.1045 (2) | 0.3483 (3) | −0.01638 (17) | 0.0497 (6) | |
C3 | 0.1271 (2) | 0.3897 (3) | −0.09054 (17) | 0.0521 (7) | |
H3 | 0.0870 | 0.3551 | −0.1437 | 0.063* | |
C4 | 0.2088 (2) | 0.4820 (3) | −0.08625 (16) | 0.0476 (6) | |
H4 | 0.2224 | 0.5109 | −0.1368 | 0.057* | |
C5 | 0.27136 (19) | 0.5328 (3) | −0.00716 (16) | 0.0459 (6) | |
C6 | 0.2465 (2) | 0.4957 (4) | 0.06647 (17) | 0.0557 (7) | |
H6 | 0.2861 | 0.5319 | 0.1196 | 0.067* | |
C7 | 0.1629 (2) | 0.4047 (4) | 0.06239 (18) | 0.0570 (7) | |
H7 | 0.1465 | 0.3822 | 0.1124 | 0.068* | |
C8 | 0.43609 (19) | 0.6338 (3) | 0.05119 (16) | 0.0446 (6) | |
C9 | 0.54000 (18) | 0.5791 (3) | 0.18936 (16) | 0.0436 (6) | |
C10 | 0.5543 (2) | 0.5004 (4) | 0.26776 (18) | 0.0518 (6) | |
H10 | 0.5058 | 0.4342 | 0.2773 | 0.062* | |
C11 | 0.6412 (2) | 0.5210 (4) | 0.33167 (17) | 0.0536 (7) | |
H11 | 0.6514 | 0.4685 | 0.3844 | 0.064* | |
C12 | 0.7131 (2) | 0.6199 (4) | 0.31721 (18) | 0.0554 (7) | |
H12 | 0.7713 | 0.6340 | 0.3606 | 0.066* | |
C13 | 0.6990 (2) | 0.6979 (4) | 0.23896 (17) | 0.0525 (7) | |
H13 | 0.7476 | 0.7644 | 0.2298 | 0.063* | |
C14 | 0.61137 (18) | 0.6767 (3) | 0.17343 (15) | 0.0428 (6) | |
C15 | 0.5157 (2) | 0.7295 (3) | 0.03396 (16) | 0.0447 (6) | |
C16 | 0.55436 (18) | 0.8817 (3) | −0.08379 (15) | 0.0435 (6) | |
C17 | 0.6539 (2) | 0.9088 (4) | −0.04862 (17) | 0.0536 (7) | |
H17 | 0.6862 | 0.8660 | 0.0053 | 0.064* | |
C18 | 0.7048 (2) | 0.9990 (4) | −0.09332 (18) | 0.0578 (7) | |
H18 | 0.7713 | 1.0150 | −0.0693 | 0.069* | |
C19 | 0.6583 (2) | 1.0656 (3) | −0.17326 (17) | 0.0487 (6) | |
C20 | 0.5592 (2) | 1.0388 (4) | −0.20832 (17) | 0.0548 (7) | |
H20 | 0.5268 | 1.0827 | −0.2620 | 0.066* | |
C21 | 0.5087 (2) | 0.9484 (4) | −0.16457 (16) | 0.0505 (6) | |
H21 | 0.4425 | 0.9312 | −0.1894 | 0.061* | |
C22 | 0.8046 (2) | 1.1618 (5) | −0.1983 (2) | 0.0777 (10) | |
H22A | 0.8289 | 1.0517 | −0.1997 | 0.093* | |
H22B | 0.8296 | 1.2060 | −0.1412 | 0.093* | |
H22C | 0.8250 | 1.2305 | −0.2379 | 0.093* | |
N1 | 0.35461 (16) | 0.6221 (3) | −0.01063 (14) | 0.0499 (5) | |
N2 | 0.59911 (15) | 0.7521 (3) | 0.09392 (12) | 0.0413 (5) | |
N3 | 0.49602 (16) | 0.7909 (3) | −0.04487 (13) | 0.0494 (5) | |
H3A | 0.4381 | 0.7720 | −0.0774 | 0.059* | |
O1 | 0.02353 (17) | 0.2511 (3) | −0.02758 (14) | 0.0700 (6) | |
O2 | 0.45078 (13) | 0.5596 (3) | 0.12731 (12) | 0.0556 (5) | |
O3 | 0.70194 (16) | 1.1580 (3) | −0.22196 (13) | 0.0655 (6) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.066 (2) | 0.077 (2) | 0.076 (2) | −0.0097 (17) | 0.0262 (17) | 0.0031 (18) |
C2 | 0.0490 (15) | 0.0481 (15) | 0.0498 (14) | 0.0023 (12) | 0.0114 (12) | −0.0024 (12) |
C3 | 0.0606 (17) | 0.0492 (15) | 0.0416 (13) | −0.0021 (13) | 0.0074 (12) | −0.0070 (12) |
C4 | 0.0567 (16) | 0.0476 (15) | 0.0367 (12) | 0.0030 (12) | 0.0111 (11) | −0.0008 (11) |
C5 | 0.0479 (14) | 0.0464 (14) | 0.0405 (12) | 0.0063 (11) | 0.0088 (11) | −0.0015 (11) |
C6 | 0.0488 (15) | 0.075 (2) | 0.0393 (13) | −0.0014 (14) | 0.0072 (11) | −0.0043 (13) |
C7 | 0.0549 (17) | 0.075 (2) | 0.0414 (13) | −0.0001 (15) | 0.0143 (12) | 0.0018 (13) |
C8 | 0.0438 (13) | 0.0448 (14) | 0.0420 (13) | 0.0052 (11) | 0.0077 (11) | −0.0031 (11) |
C9 | 0.0378 (13) | 0.0457 (14) | 0.0445 (13) | 0.0027 (10) | 0.0079 (10) | 0.0008 (11) |
C10 | 0.0464 (14) | 0.0535 (16) | 0.0554 (15) | 0.0022 (12) | 0.0147 (12) | 0.0093 (13) |
C11 | 0.0533 (16) | 0.0587 (17) | 0.0434 (13) | 0.0080 (13) | 0.0061 (12) | 0.0054 (13) |
C12 | 0.0479 (15) | 0.0627 (18) | 0.0486 (14) | −0.0022 (13) | 0.0035 (12) | −0.0079 (13) |
C13 | 0.0467 (15) | 0.0584 (17) | 0.0499 (15) | −0.0085 (12) | 0.0104 (12) | −0.0057 (13) |
C14 | 0.0438 (13) | 0.0431 (13) | 0.0414 (12) | 0.0015 (11) | 0.0125 (10) | −0.0020 (10) |
C15 | 0.0531 (15) | 0.0393 (13) | 0.0443 (13) | 0.0065 (11) | 0.0186 (11) | −0.0017 (10) |
C16 | 0.0440 (13) | 0.0461 (14) | 0.0400 (12) | 0.0054 (11) | 0.0119 (11) | −0.0026 (10) |
C17 | 0.0440 (14) | 0.0676 (18) | 0.0433 (14) | 0.0022 (13) | 0.0036 (12) | 0.0082 (13) |
C18 | 0.0421 (14) | 0.075 (2) | 0.0497 (14) | −0.0037 (14) | 0.0041 (12) | 0.0031 (15) |
C19 | 0.0533 (15) | 0.0501 (15) | 0.0423 (13) | 0.0014 (12) | 0.0136 (12) | −0.0018 (11) |
C20 | 0.0530 (16) | 0.0699 (19) | 0.0372 (12) | 0.0059 (14) | 0.0068 (12) | 0.0054 (13) |
C21 | 0.0422 (13) | 0.0640 (18) | 0.0408 (13) | 0.0028 (12) | 0.0052 (11) | −0.0016 (12) |
C22 | 0.0560 (19) | 0.095 (3) | 0.084 (2) | −0.0101 (18) | 0.0233 (18) | 0.012 (2) |
N1 | 0.0459 (12) | 0.0551 (14) | 0.0447 (11) | −0.0003 (10) | 0.0071 (10) | −0.0023 (10) |
N2 | 0.0417 (11) | 0.0446 (12) | 0.0361 (10) | −0.0024 (9) | 0.0095 (8) | −0.0002 (9) |
N3 | 0.0446 (12) | 0.0576 (14) | 0.0431 (11) | 0.0033 (10) | 0.0087 (9) | 0.0008 (10) |
O1 | 0.0668 (14) | 0.0815 (15) | 0.0617 (13) | −0.0229 (12) | 0.0193 (11) | −0.0067 (11) |
O2 | 0.0446 (10) | 0.0604 (12) | 0.0558 (11) | −0.0025 (9) | 0.0058 (9) | 0.0078 (9) |
O3 | 0.0595 (13) | 0.0817 (15) | 0.0544 (11) | −0.0078 (11) | 0.0157 (10) | 0.0101 (11) |
C1—O1 | 1.416 (4) | C11—H11 | 0.9300 |
C1—H1A | 0.9600 | C12—C13 | 1.381 (4) |
C1—H1B | 0.9600 | C12—H12 | 0.9300 |
C1—H1C | 0.9600 | C13—C14 | 1.402 (4) |
C2—O1 | 1.374 (3) | C13—H13 | 0.9300 |
C2—C3 | 1.382 (4) | C14—N2 | 1.393 (3) |
C2—C7 | 1.386 (4) | C15—N2 | 1.318 (3) |
C3—C4 | 1.378 (4) | C15—N3 | 1.325 (3) |
C3—H3 | 0.9300 | C16—C21 | 1.393 (4) |
C4—C5 | 1.397 (3) | C16—C17 | 1.396 (4) |
C4—H4 | 0.9300 | C16—N3 | 1.401 (3) |
C5—C6 | 1.382 (4) | C17—C18 | 1.385 (4) |
C5—N1 | 1.417 (4) | C17—H17 | 0.9300 |
C6—C7 | 1.397 (4) | C18—C19 | 1.384 (4) |
C6—H6 | 0.9300 | C18—H18 | 0.9300 |
C7—H7 | 0.9300 | C19—O3 | 1.370 (3) |
C8—N1 | 1.304 (3) | C19—C20 | 1.390 (4) |
C8—O2 | 1.336 (3) | C20—C21 | 1.371 (4) |
C8—C15 | 1.479 (4) | C20—H20 | 0.9300 |
C9—C14 | 1.381 (4) | C21—H21 | 0.9300 |
C9—C10 | 1.385 (4) | C22—O3 | 1.415 (4) |
C9—O2 | 1.389 (3) | C22—H22A | 0.9600 |
C10—C11 | 1.381 (4) | C22—H22B | 0.9600 |
C10—H10 | 0.9300 | C22—H22C | 0.9600 |
C11—C12 | 1.384 (4) | N3—H3A | 0.8600 |
O1—C1—H1A | 109.5 | C12—C13—H13 | 120.1 |
O1—C1—H1B | 109.5 | C14—C13—H13 | 120.1 |
H1A—C1—H1B | 109.5 | C9—C14—N2 | 121.9 (2) |
O1—C1—H1C | 109.5 | C9—C14—C13 | 118.8 (2) |
H1A—C1—H1C | 109.5 | N2—C14—C13 | 119.4 (2) |
H1B—C1—H1C | 109.5 | N2—C15—N3 | 123.5 (2) |
O1—C2—C3 | 115.8 (2) | N2—C15—C8 | 121.4 (2) |
O1—C2—C7 | 124.8 (3) | N3—C15—C8 | 115.1 (2) |
C3—C2—C7 | 119.5 (3) | C21—C16—C17 | 117.8 (2) |
C4—C3—C2 | 120.5 (2) | C21—C16—N3 | 116.8 (2) |
C4—C3—H3 | 119.8 | C17—C16—N3 | 125.4 (2) |
C2—C3—H3 | 119.8 | C18—C17—C16 | 120.6 (2) |
C3—C4—C5 | 121.0 (2) | C18—C17—H17 | 119.7 |
C3—C4—H4 | 119.5 | C16—C17—H17 | 119.7 |
C5—C4—H4 | 119.5 | C19—C18—C17 | 120.9 (3) |
C6—C5—C4 | 118.2 (3) | C19—C18—H18 | 119.5 |
C6—C5—N1 | 125.9 (2) | C17—C18—H18 | 119.5 |
C4—C5—N1 | 115.9 (2) | O3—C19—C18 | 125.3 (3) |
C5—C6—C7 | 121.0 (3) | O3—C19—C20 | 116.1 (2) |
C5—C6—H6 | 119.5 | C18—C19—C20 | 118.5 (3) |
C7—C6—H6 | 119.5 | C21—C20—C19 | 120.7 (2) |
C2—C7—C6 | 119.8 (3) | C21—C20—H20 | 119.7 |
C2—C7—H7 | 120.1 | C19—C20—H20 | 119.7 |
C6—C7—H7 | 120.1 | C20—C21—C16 | 121.4 (2) |
N1—C8—O2 | 122.8 (2) | C20—C21—H21 | 119.3 |
N1—C8—C15 | 117.7 (2) | C16—C21—H21 | 119.3 |
O2—C8—C15 | 119.5 (2) | O3—C22—H22A | 109.5 |
C14—C9—C10 | 121.3 (2) | O3—C22—H22B | 109.5 |
C14—C9—O2 | 120.6 (2) | H22A—C22—H22B | 109.5 |
C10—C9—O2 | 118.1 (2) | O3—C22—H22C | 109.5 |
C11—C10—C9 | 119.5 (3) | H22A—C22—H22C | 109.5 |
C11—C10—H10 | 120.3 | H22B—C22—H22C | 109.5 |
C9—C10—H10 | 120.3 | C8—N1—C5 | 125.9 (2) |
C10—C11—C12 | 120.0 (3) | C15—N2—C14 | 117.6 (2) |
C10—C11—H11 | 120.0 | C15—N3—C16 | 130.4 (2) |
C12—C11—H11 | 120.0 | C15—N3—H3A | 114.8 |
C13—C12—C11 | 120.6 (3) | C16—N3—H3A | 114.8 |
C13—C12—H12 | 119.7 | C2—O1—C1 | 118.4 (2) |
C11—C12—H12 | 119.7 | C8—O2—C9 | 118.8 (2) |
C12—C13—C14 | 119.9 (3) | C19—O3—C22 | 118.5 (2) |
O1—C2—C3—C4 | −177.7 (3) | C17—C18—C19—O3 | 179.2 (3) |
C7—C2—C3—C4 | 2.0 (4) | C17—C18—C19—C20 | −0.6 (5) |
C2—C3—C4—C5 | 1.3 (4) | O3—C19—C20—C21 | −179.8 (3) |
C3—C4—C5—C6 | −3.4 (4) | C18—C19—C20—C21 | 0.0 (4) |
C3—C4—C5—N1 | 177.9 (2) | C19—C20—C21—C16 | 0.5 (5) |
C4—C5—C6—C7 | 2.3 (4) | C17—C16—C21—C20 | −0.4 (4) |
N1—C5—C6—C7 | −179.3 (3) | N3—C16—C21—C20 | −179.8 (3) |
O1—C2—C7—C6 | 176.6 (3) | O2—C8—N1—C5 | 0.2 (4) |
C3—C2—C7—C6 | −3.2 (4) | C15—C8—N1—C5 | 178.3 (2) |
C5—C6—C7—C2 | 1.0 (5) | C6—C5—N1—C8 | 25.8 (4) |
C14—C9—C10—C11 | 0.6 (4) | C4—C5—N1—C8 | −155.7 (3) |
O2—C9—C10—C11 | −178.2 (3) | N3—C15—N2—C14 | −178.2 (2) |
C9—C10—C11—C12 | 0.1 (4) | C8—C15—N2—C14 | 2.6 (3) |
C10—C11—C12—C13 | −0.4 (5) | C9—C14—N2—C15 | 1.1 (4) |
C11—C12—C13—C14 | −0.1 (4) | C13—C14—N2—C15 | −179.9 (2) |
C10—C9—C14—N2 | 177.9 (2) | N2—C15—N3—C16 | 3.1 (4) |
O2—C9—C14—N2 | −3.4 (4) | C8—C15—N3—C16 | −177.7 (2) |
C10—C9—C14—C13 | −1.1 (4) | C21—C16—N3—C15 | −171.6 (3) |
O2—C9—C14—C13 | 177.7 (2) | C17—C16—N3—C15 | 9.0 (5) |
C12—C13—C14—C9 | 0.9 (4) | C3—C2—O1—C1 | −176.0 (3) |
C12—C13—C14—N2 | −178.1 (3) | C7—C2—O1—C1 | 4.3 (5) |
N1—C8—C15—N2 | 177.6 (2) | N1—C8—O2—C9 | −180.0 (2) |
O2—C8—C15—N2 | −4.3 (4) | C15—C8—O2—C9 | 2.0 (3) |
N1—C8—C15—N3 | −1.7 (3) | C14—C9—O2—C8 | 1.6 (4) |
O2—C8—C15—N3 | 176.5 (2) | C10—C9—O2—C8 | −179.6 (2) |
C21—C16—C17—C18 | −0.2 (4) | C18—C19—O3—C22 | 12.6 (5) |
N3—C16—C17—C18 | 179.2 (3) | C20—C19—O3—C22 | −167.6 (3) |
C16—C17—C18—C19 | 0.7 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
C7—H7···O3i | 0.93 | 2.59 | 3.423 (3) | 149 |
Symmetry code: (i) x−1/2, −y+3/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C22H19N3O3 |
Mr | 373.40 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 298 |
a, b, c (Å) | 14.4225 (14), 8.0836 (5), 16.2749 (14) |
β (°) | 107.263 (7) |
V (Å3) | 1811.9 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.60 × 0.13 × 0.04 |
Data collection | |
Diffractometer | Stoe IPDS II |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21467, 4893, 3190 |
Rint | 0.111 |
(sin θ/λ)max (Å−1) | 0.687 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.083, 0.195, 1.15 |
No. of reflections | 4893 |
No. of parameters | 253 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.24, −0.28 |
Computer programs: X-AREA (Stoe & Cie, 2005), 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 |
C7—H7···O3i | 0.93 | 2.59 | 3.423 (3) | 149 |
Symmetry code: (i) x−1/2, −y+3/2, z+1/2. |
Acknowledgements
The authors thank the Vice President of Research Affairs at Shahid Beheshti University, General Campus, for financial support.
References
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Recently, we reported a Baeyer–Villiger oxidation of 1-alkyl-3-arylimino-2-indolinone with m-chloroperbenzoic acid to afford 1-alkyl-4-(arylimino)-1H benzo[d][1,3]oxazin-2(4H)-one (Azizian et al., 2000; Jadidi et al., 2008). As a continuation of this work, 2-arylimino-N-aryl-2H-benzo[b][1,4]oxazin-3-amines (2) or N-aryl-N-(2-arylamino-3H-indol-3-ylidene)amine N-oxides (3) were obtained in two different temperatures by Baeyer-Villiger oxidation reaction (Fig. 1) of N-aryl-3-(arylimino)-3H-indol-2-amines (1) (Mehrdad et al., 2011). In this paper, we report the structure of (2Z)-2-(4-methoxyphenylimino)-N-(4-methoxyphenyl)- 2H-benzo[b][1,4]oxazin-3-amine (2a). The molecular structure of the title compound is shown in Fig. 2.
The methoxy phenyl rings, A (C2—C7) and B (C16—C21) and benzooxazine ring C (C9—C14/C8/O2/N2/C15) enclose the dihedral angles: A/B = 32.38 (7)°, A/C = 10.66 (8)° and B/C = 24.17 (7)°. Intermolecular C—H···O interactions (Table 1) stabilize the crystal structure.