organic compounds
5-Methyl-3,3-bis(morpholin-4-yl)-1-[2-(morpholin-4-yl)ethyl]-2,3-dihydro-1H-indol-2-one
aDepartment of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China
*Correspondence e-mail: slcao@cnu.edu.cn
In the title compound, C23H34N4O4, the morpholine rings adopt chair conformations. The N atom of the indol-2-one group is linked to the N atom of one morpholine ring through a flexible ethyl group with an almost cif conformation. In the crystal, molecules are linked by C—H⋯O interactions into infinite chains along the c direction. The almost parallel infinite chains are further interconnected via other sets of C—H⋯O interactions, forming a three-dimensional framework.
Related literature
For background to and activities of indoline-2,3-dione and its derivatives, see Chiyanzu et al. (2005); Karali (2002); Sirisoma et al. (2009); Solomon et al. (2009); Sriram et al. (2004). For structural analogues of indoline-2,3-dione (isatin), see: Wang et al. (2012).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell APEX2 and SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536812007155/zq2153sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812007155/zq2153Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812007155/zq2153Isup3.cml
To a solution of 1-(2-bromoethyl)-5-methylindoline-2,3-dione (0.27 g, 1 mmol) in N,N-dimethylformamide (5 ml) was added morpholine dropwise (0.52 g, 6 mmol). The mixture was stirred at 80–90°C for 3 h. The colourless crystals of the title compound were deposited by evaporation of the resulting solution at room temperature for one day (m.p. 450.2–451.9 K; yield 53%).
All H atoms were discernible in the difference electron density maps. Nevertheless, the H atoms were placed into idealized positions and allowed to ride on their respective carrier atoms, with C—H = 0.93 and Uiso(H) = 1.2Ueq(C) for aromatic H atoms, with C—H = 0.97 and Uiso(H) = 1.2Ueq(C) for methylene H atoms, and with C—H = 0.96 and Uiso(H) = 1.5Ueq(C) for methyl H atoms.
Data collection: APEX2 (Bruker, 2007); cell
APEX2 and SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).C23H34N4O4 | Z = 4 |
Mr = 430.54 | F(000) = 928 |
Monoclinic, P21/c | Dx = 1.250 Mg m−3 |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 10.1772 (10) Å | µ = 0.09 mm−1 |
b = 14.2576 (14) Å | T = 296 K |
c = 15.8950 (16) Å | Block, colourless |
β = 97.332 (2)° | 0.40 × 0.30 × 0.20 mm |
V = 2287.5 (4) Å3 |
Bruker APEXII CCD diffractometer | 5355 independent reflections |
Radiation source: fine-focus sealed tube | 2599 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.040 |
ω scans | θmax = 28.0°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | h = −13→10 |
Tmin = 0.660, Tmax = 0.746 | k = −18→14 |
12380 measured reflections | l = −20→20 |
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)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0533P)2 + 0.0135P] P = (Fo2 + 2Fc2)/3 |
5355 reflections | (Δ/σ)max < 0.001 |
280 parameters | Δρmax = 0.18 e Å−3 |
0 restraints | Δρmin = −0.16 e Å−3 |
C23H34N4O4 | V = 2287.5 (4) Å3 |
Mr = 430.54 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 10.1772 (10) Å | µ = 0.09 mm−1 |
b = 14.2576 (14) Å | T = 296 K |
c = 15.8950 (16) Å | 0.40 × 0.30 × 0.20 mm |
β = 97.332 (2)° |
Bruker APEXII CCD diffractometer | 5355 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | 2599 reflections with I > 2σ(I) |
Tmin = 0.660, Tmax = 0.746 | Rint = 0.040 |
12380 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 0 restraints |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.18 e Å−3 |
5355 reflections | Δρmin = −0.16 e Å−3 |
280 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 | ||
N1 | 0.58843 (17) | 0.24574 (12) | 0.17404 (11) | 0.0495 (5) | |
N2 | 0.80352 (17) | 0.17783 (11) | 0.08141 (13) | 0.0561 (5) | |
N3 | 0.36653 (15) | 0.22400 (10) | −0.00090 (9) | 0.0398 (4) | |
N4 | 0.29148 (16) | 0.34238 (10) | 0.08565 (9) | 0.0404 (4) | |
O1 | 0.58871 (14) | 0.35530 (10) | 0.06837 (9) | 0.0577 (4) | |
O2 | 0.90210 (18) | 0.16969 (14) | −0.07774 (12) | 0.0859 (6) | |
O3 | 0.31081 (16) | 0.09322 (10) | −0.13528 (9) | 0.0579 (4) | |
O4 | 0.17921 (17) | 0.52235 (10) | 0.10253 (10) | 0.0706 (5) | |
C1 | 0.3731 (2) | 0.19469 (12) | 0.15619 (12) | 0.0404 (5) | |
C2 | 0.2663 (2) | 0.14541 (13) | 0.17824 (12) | 0.0460 (5) | |
H2A | 0.1832 | 0.1533 | 0.1471 | 0.055* | |
C3 | 0.2818 (2) | 0.08355 (13) | 0.24716 (14) | 0.0533 (6) | |
C4 | 0.4063 (3) | 0.07408 (15) | 0.29203 (14) | 0.0619 (7) | |
H4A | 0.4176 | 0.0328 | 0.3377 | 0.074* | |
C5 | 0.5156 (3) | 0.12359 (16) | 0.27181 (14) | 0.0608 (6) | |
H5A | 0.5987 | 0.1160 | 0.3029 | 0.073* | |
C6 | 0.4963 (2) | 0.18449 (13) | 0.20389 (13) | 0.0460 (5) | |
C7 | 0.1639 (3) | 0.03148 (16) | 0.27269 (16) | 0.0784 (8) | |
H7A | 0.1921 | −0.0078 | 0.3207 | 0.118* | |
H7B | 0.1253 | −0.0066 | 0.2262 | 0.118* | |
H7C | 0.0995 | 0.0757 | 0.2874 | 0.118* | |
C8 | 0.5323 (2) | 0.29554 (14) | 0.10519 (13) | 0.0440 (5) | |
C9 | 0.38464 (19) | 0.26432 (12) | 0.08495 (12) | 0.0389 (5) | |
C10 | 0.7280 (2) | 0.25298 (17) | 0.20717 (15) | 0.0660 (7) | |
H10A | 0.7376 | 0.2489 | 0.2686 | 0.079* | |
H10B | 0.7611 | 0.3137 | 0.1922 | 0.079* | |
C11 | 0.8101 (2) | 0.17647 (17) | 0.17284 (16) | 0.0702 (7) | |
H11A | 0.9018 | 0.1836 | 0.1975 | 0.084* | |
H11B | 0.7795 | 0.1160 | 0.1903 | 0.084* | |
C12 | 0.8768 (2) | 0.25529 (14) | 0.05026 (17) | 0.0640 (7) | |
H12A | 0.9702 | 0.2493 | 0.0712 | 0.077* | |
H12B | 0.8452 | 0.3142 | 0.0707 | 0.077* | |
C13 | 0.8582 (3) | 0.25463 (18) | −0.04466 (18) | 0.0795 (8) | |
H13A | 0.7651 | 0.2636 | −0.0651 | 0.095* | |
H13B | 0.9070 | 0.3065 | −0.0651 | 0.095* | |
C14 | 0.8346 (3) | 0.09313 (19) | −0.0469 (2) | 0.0904 (9) | |
H14A | 0.8684 | 0.0352 | −0.0678 | 0.108* | |
H14B | 0.7411 | 0.0974 | −0.0681 | 0.108* | |
C15 | 0.8511 (3) | 0.09099 (15) | 0.0481 (2) | 0.0774 (8) | |
H15A | 0.8019 | 0.0385 | 0.0672 | 0.093* | |
H15B | 0.9439 | 0.0824 | 0.0695 | 0.093* | |
C16 | 0.2317 (2) | 0.19163 (14) | −0.02867 (12) | 0.0491 (5) | |
H16A | 0.1688 | 0.2409 | −0.0204 | 0.059* | |
H16B | 0.2117 | 0.1376 | 0.0045 | 0.059* | |
C17 | 0.2202 (2) | 0.16579 (16) | −0.12093 (13) | 0.0588 (6) | |
H17A | 0.1306 | 0.1451 | −0.1400 | 0.071* | |
H17B | 0.2379 | 0.2206 | −0.1538 | 0.071* | |
C18 | 0.4419 (2) | 0.12244 (16) | −0.10682 (13) | 0.0577 (6) | |
H18A | 0.4637 | 0.1760 | −0.1401 | 0.069* | |
H18B | 0.5028 | 0.0721 | −0.1157 | 0.069* | |
C19 | 0.4594 (2) | 0.14893 (13) | −0.01383 (13) | 0.0511 (6) | |
H19A | 0.4426 | 0.0949 | 0.0203 | 0.061* | |
H19B | 0.5495 | 0.1699 | 0.0033 | 0.061* | |
C20 | 0.2886 (2) | 0.38543 (13) | 0.16874 (12) | 0.0491 (6) | |
H20A | 0.3701 | 0.4197 | 0.1852 | 0.059* | |
H20B | 0.2805 | 0.3373 | 0.2109 | 0.059* | |
C21 | 0.1725 (2) | 0.45096 (14) | 0.16374 (15) | 0.0614 (6) | |
H21A | 0.0914 | 0.4155 | 0.1494 | 0.074* | |
H21B | 0.1695 | 0.4795 | 0.2188 | 0.074* | |
C22 | 0.1873 (3) | 0.48121 (16) | 0.02166 (15) | 0.0686 (7) | |
H22A | 0.1942 | 0.5305 | −0.0196 | 0.082* | |
H22B | 0.1067 | 0.4463 | 0.0040 | 0.082* | |
C23 | 0.3039 (2) | 0.41675 (13) | 0.02300 (13) | 0.0537 (6) | |
H23A | 0.3060 | 0.3894 | −0.0327 | 0.064* | |
H23B | 0.3855 | 0.4514 | 0.0383 | 0.064* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0419 (10) | 0.0561 (11) | 0.0486 (11) | 0.0033 (9) | −0.0009 (9) | 0.0031 (9) |
N2 | 0.0502 (12) | 0.0428 (10) | 0.0761 (14) | 0.0041 (9) | 0.0118 (10) | 0.0083 (9) |
N3 | 0.0421 (10) | 0.0395 (9) | 0.0387 (10) | 0.0038 (8) | 0.0082 (8) | −0.0013 (7) |
N4 | 0.0493 (11) | 0.0361 (9) | 0.0369 (9) | 0.0081 (8) | 0.0094 (8) | 0.0025 (7) |
O1 | 0.0517 (10) | 0.0513 (9) | 0.0712 (11) | −0.0052 (7) | 0.0115 (8) | 0.0084 (8) |
O2 | 0.0714 (13) | 0.0905 (13) | 0.1004 (15) | 0.0057 (11) | 0.0289 (11) | −0.0122 (11) |
O3 | 0.0659 (11) | 0.0584 (9) | 0.0510 (9) | −0.0035 (8) | 0.0136 (8) | −0.0120 (7) |
O4 | 0.0982 (14) | 0.0441 (9) | 0.0708 (11) | 0.0230 (9) | 0.0155 (10) | 0.0018 (8) |
C1 | 0.0480 (13) | 0.0383 (11) | 0.0353 (11) | 0.0058 (9) | 0.0071 (10) | 0.0006 (9) |
C2 | 0.0505 (14) | 0.0431 (12) | 0.0454 (13) | 0.0036 (10) | 0.0093 (10) | 0.0023 (10) |
C3 | 0.0735 (17) | 0.0400 (12) | 0.0493 (13) | 0.0079 (11) | 0.0189 (13) | 0.0099 (10) |
C4 | 0.0773 (19) | 0.0588 (14) | 0.0523 (15) | 0.0212 (14) | 0.0189 (14) | 0.0196 (12) |
C5 | 0.0644 (17) | 0.0677 (15) | 0.0492 (14) | 0.0214 (13) | 0.0028 (12) | 0.0088 (12) |
C6 | 0.0518 (14) | 0.0449 (12) | 0.0413 (12) | 0.0088 (10) | 0.0061 (11) | 0.0027 (10) |
C7 | 0.092 (2) | 0.0689 (16) | 0.0790 (18) | −0.0034 (15) | 0.0303 (16) | 0.0272 (14) |
C8 | 0.0450 (13) | 0.0410 (12) | 0.0468 (13) | 0.0047 (10) | 0.0085 (11) | −0.0034 (10) |
C9 | 0.0424 (12) | 0.0387 (11) | 0.0357 (11) | 0.0042 (9) | 0.0054 (9) | 0.0025 (9) |
C10 | 0.0501 (15) | 0.0861 (17) | 0.0581 (15) | 0.0003 (13) | −0.0069 (12) | −0.0005 (13) |
C11 | 0.0475 (15) | 0.0740 (16) | 0.087 (2) | 0.0135 (13) | 0.0007 (14) | 0.0196 (14) |
C12 | 0.0577 (16) | 0.0464 (13) | 0.089 (2) | 0.0013 (11) | 0.0130 (14) | 0.0057 (12) |
C13 | 0.080 (2) | 0.0721 (18) | 0.089 (2) | 0.0104 (15) | 0.0226 (17) | 0.0107 (15) |
C14 | 0.081 (2) | 0.073 (2) | 0.121 (3) | 0.0015 (16) | 0.029 (2) | −0.0298 (18) |
C15 | 0.0638 (17) | 0.0423 (14) | 0.130 (3) | 0.0052 (12) | 0.0270 (17) | 0.0000 (15) |
C16 | 0.0449 (13) | 0.0583 (13) | 0.0444 (13) | −0.0028 (11) | 0.0062 (10) | −0.0068 (10) |
C17 | 0.0561 (15) | 0.0720 (15) | 0.0475 (14) | 0.0010 (13) | 0.0037 (12) | −0.0057 (11) |
C18 | 0.0589 (16) | 0.0608 (14) | 0.0560 (15) | 0.0041 (12) | 0.0174 (12) | −0.0102 (11) |
C19 | 0.0514 (14) | 0.0501 (13) | 0.0522 (14) | 0.0074 (11) | 0.0076 (11) | −0.0048 (10) |
C20 | 0.0627 (15) | 0.0422 (11) | 0.0428 (12) | 0.0040 (11) | 0.0088 (11) | −0.0023 (9) |
C21 | 0.0774 (18) | 0.0490 (13) | 0.0602 (15) | 0.0120 (12) | 0.0177 (13) | −0.0042 (11) |
C22 | 0.089 (2) | 0.0560 (14) | 0.0606 (16) | 0.0260 (13) | 0.0103 (14) | 0.0119 (12) |
C23 | 0.0662 (16) | 0.0461 (12) | 0.0502 (13) | 0.0121 (11) | 0.0127 (12) | 0.0117 (10) |
N1—C8 | 1.367 (2) | C10—H10A | 0.9700 |
N1—C6 | 1.407 (2) | C10—H10B | 0.9700 |
N1—C10 | 1.454 (3) | C11—H11A | 0.9700 |
N2—C11 | 1.446 (3) | C11—H11B | 0.9700 |
N2—C15 | 1.453 (3) | C12—C13 | 1.496 (3) |
N2—C12 | 1.454 (2) | C12—H12A | 0.9700 |
N3—C19 | 1.460 (2) | C12—H12B | 0.9700 |
N3—C16 | 1.462 (2) | C13—H13A | 0.9700 |
N3—C9 | 1.471 (2) | C13—H13B | 0.9700 |
N4—C20 | 1.460 (2) | C14—C15 | 1.498 (4) |
N4—C9 | 1.463 (2) | C14—H14A | 0.9700 |
N4—C23 | 1.471 (2) | C14—H14B | 0.9700 |
O1—C8 | 1.218 (2) | C15—H15A | 0.9700 |
O2—C14 | 1.411 (3) | C15—H15B | 0.9700 |
O2—C13 | 1.415 (3) | C16—C17 | 1.502 (3) |
O3—C18 | 1.415 (2) | C16—H16A | 0.9700 |
O3—C17 | 1.423 (2) | C16—H16B | 0.9700 |
O4—C21 | 1.416 (2) | C17—H17A | 0.9700 |
O4—C22 | 1.425 (3) | C17—H17B | 0.9700 |
C1—C2 | 1.377 (3) | C18—C19 | 1.514 (3) |
C1—C6 | 1.387 (3) | C18—H18A | 0.9700 |
C1—C9 | 1.522 (2) | C18—H18B | 0.9700 |
C2—C3 | 1.400 (3) | C19—H19A | 0.9700 |
C2—H2A | 0.9300 | C19—H19B | 0.9700 |
C3—C4 | 1.379 (3) | C20—C21 | 1.500 (3) |
C3—C7 | 1.510 (3) | C20—H20A | 0.9700 |
C4—C5 | 1.389 (3) | C20—H20B | 0.9700 |
C4—H4A | 0.9300 | C21—H21A | 0.9700 |
C5—C6 | 1.380 (3) | C21—H21B | 0.9700 |
C5—H5A | 0.9300 | C22—C23 | 1.499 (3) |
C7—H7A | 0.9600 | C22—H22A | 0.9700 |
C7—H7B | 0.9600 | C22—H22B | 0.9700 |
C7—H7C | 0.9600 | C23—H23A | 0.9700 |
C8—C9 | 1.561 (3) | C23—H23B | 0.9700 |
C10—C11 | 1.518 (3) | ||
C8—N1—C6 | 111.35 (17) | O2—C13—C12 | 112.0 (2) |
C8—N1—C10 | 122.82 (18) | O2—C13—H13A | 109.2 |
C6—N1—C10 | 125.73 (18) | C12—C13—H13A | 109.2 |
C11—N2—C15 | 112.30 (19) | O2—C13—H13B | 109.2 |
C11—N2—C12 | 113.09 (19) | C12—C13—H13B | 109.2 |
C15—N2—C12 | 108.31 (18) | H13A—C13—H13B | 107.9 |
C19—N3—C16 | 109.01 (15) | O2—C14—C15 | 111.7 (2) |
C19—N3—C9 | 114.25 (15) | O2—C14—H14A | 109.3 |
C16—N3—C9 | 113.90 (14) | C15—C14—H14A | 109.3 |
C20—N4—C9 | 114.50 (15) | O2—C14—H14B | 109.3 |
C20—N4—C23 | 108.83 (14) | C15—C14—H14B | 109.3 |
C9—N4—C23 | 115.55 (14) | H14A—C14—H14B | 107.9 |
C14—O2—C13 | 110.01 (18) | N2—C15—C14 | 110.5 (2) |
C18—O3—C17 | 109.76 (15) | N2—C15—H15A | 109.6 |
C21—O4—C22 | 109.72 (15) | C14—C15—H15A | 109.6 |
C2—C1—C6 | 119.68 (18) | N2—C15—H15B | 109.6 |
C2—C1—C9 | 131.34 (19) | C14—C15—H15B | 109.6 |
C6—C1—C9 | 108.97 (17) | H15A—C15—H15B | 108.1 |
C1—C2—C3 | 120.5 (2) | N3—C16—C17 | 108.96 (16) |
C1—C2—H2A | 119.8 | N3—C16—H16A | 109.9 |
C3—C2—H2A | 119.8 | C17—C16—H16A | 109.9 |
C4—C3—C2 | 118.1 (2) | N3—C16—H16B | 109.9 |
C4—C3—C7 | 121.5 (2) | C17—C16—H16B | 109.9 |
C2—C3—C7 | 120.4 (2) | H16A—C16—H16B | 108.3 |
C3—C4—C5 | 122.7 (2) | O3—C17—C16 | 111.33 (18) |
C3—C4—H4A | 118.6 | O3—C17—H17A | 109.4 |
C5—C4—H4A | 118.6 | C16—C17—H17A | 109.4 |
C6—C5—C4 | 117.5 (2) | O3—C17—H17B | 109.4 |
C6—C5—H5A | 121.2 | C16—C17—H17B | 109.4 |
C4—C5—H5A | 121.2 | H17A—C17—H17B | 108.0 |
C5—C6—C1 | 121.5 (2) | O3—C18—C19 | 111.97 (17) |
C5—C6—N1 | 128.3 (2) | O3—C18—H18A | 109.2 |
C1—C6—N1 | 110.19 (17) | C19—C18—H18A | 109.2 |
C3—C7—H7A | 109.5 | O3—C18—H18B | 109.2 |
C3—C7—H7B | 109.5 | C19—C18—H18B | 109.2 |
H7A—C7—H7B | 109.5 | H18A—C18—H18B | 107.9 |
C3—C7—H7C | 109.5 | N3—C19—C18 | 108.84 (17) |
H7A—C7—H7C | 109.5 | N3—C19—H19A | 109.9 |
H7B—C7—H7C | 109.5 | C18—C19—H19A | 109.9 |
O1—C8—N1 | 125.00 (19) | N3—C19—H19B | 109.9 |
O1—C8—C9 | 126.93 (18) | C18—C19—H19B | 109.9 |
N1—C8—C9 | 108.04 (17) | H19A—C19—H19B | 108.3 |
N4—C9—N3 | 107.45 (15) | N4—C20—C21 | 108.70 (17) |
N4—C9—C1 | 112.29 (14) | N4—C20—H20A | 109.9 |
N3—C9—C1 | 115.03 (15) | C21—C20—H20A | 109.9 |
N4—C9—C8 | 112.91 (15) | N4—C20—H20B | 109.9 |
N3—C9—C8 | 107.82 (14) | C21—C20—H20B | 109.9 |
C1—C9—C8 | 101.32 (16) | H20A—C20—H20B | 108.3 |
N1—C10—C11 | 112.09 (19) | O4—C21—C20 | 112.16 (18) |
N1—C10—H10A | 109.2 | O4—C21—H21A | 109.2 |
C11—C10—H10A | 109.2 | C20—C21—H21A | 109.2 |
N1—C10—H10B | 109.2 | O4—C21—H21B | 109.2 |
C11—C10—H10B | 109.2 | C20—C21—H21B | 109.2 |
H10A—C10—H10B | 107.9 | H21A—C21—H21B | 107.9 |
N2—C11—C10 | 113.24 (18) | O4—C22—C23 | 112.10 (19) |
N2—C11—H11A | 108.9 | O4—C22—H22A | 109.2 |
C10—C11—H11A | 108.9 | C23—C22—H22A | 109.2 |
N2—C11—H11B | 108.9 | O4—C22—H22B | 109.2 |
C10—C11—H11B | 108.9 | C23—C22—H22B | 109.2 |
H11A—C11—H11B | 107.7 | H22A—C22—H22B | 107.9 |
N2—C12—C13 | 109.5 (2) | N4—C23—C22 | 108.35 (17) |
N2—C12—H12A | 109.8 | N4—C23—H23A | 110.0 |
C13—C12—H12A | 109.8 | C22—C23—H23A | 110.0 |
N2—C12—H12B | 109.8 | N4—C23—H23B | 110.0 |
C13—C12—H12B | 109.8 | C22—C23—H23B | 110.0 |
H12A—C12—H12B | 108.2 | H23A—C23—H23B | 108.4 |
C6—C1—C2—C3 | −1.5 (3) | C2—C1—C9—C8 | 175.79 (18) |
C9—C1—C2—C3 | 179.17 (18) | C6—C1—C9—C8 | −3.60 (19) |
C1—C2—C3—C4 | 0.3 (3) | O1—C8—C9—N4 | −55.5 (2) |
C1—C2—C3—C7 | 178.40 (18) | N1—C8—C9—N4 | 122.73 (16) |
C2—C3—C4—C5 | 0.4 (3) | O1—C8—C9—N3 | 63.0 (2) |
C7—C3—C4—C5 | −177.7 (2) | N1—C8—C9—N3 | −118.73 (16) |
C3—C4—C5—C6 | 0.1 (3) | O1—C8—C9—C1 | −175.82 (18) |
C4—C5—C6—C1 | −1.4 (3) | N1—C8—C9—C1 | 2.43 (18) |
C4—C5—C6—N1 | 176.15 (19) | C8—N1—C10—C11 | −95.5 (2) |
C2—C1—C6—C5 | 2.1 (3) | C6—N1—C10—C11 | 80.6 (2) |
C9—C1—C6—C5 | −178.48 (18) | C15—N2—C11—C10 | −164.15 (18) |
C2—C1—C6—N1 | −175.87 (16) | C12—N2—C11—C10 | 72.9 (2) |
C9—C1—C6—N1 | 3.6 (2) | N1—C10—C11—N2 | 59.7 (3) |
C8—N1—C6—C5 | −179.7 (2) | C11—N2—C12—C13 | −176.73 (18) |
C10—N1—C6—C5 | 3.8 (3) | C15—N2—C12—C13 | 58.1 (2) |
C8—N1—C6—C1 | −2.0 (2) | C14—O2—C13—C12 | 57.4 (3) |
C10—N1—C6—C1 | −178.44 (18) | N2—C12—C13—O2 | −59.1 (3) |
C6—N1—C8—O1 | 177.82 (17) | C13—O2—C14—C15 | −56.3 (3) |
C10—N1—C8—O1 | −5.6 (3) | C11—N2—C15—C14 | 176.5 (2) |
C6—N1—C8—C9 | −0.5 (2) | C12—N2—C15—C14 | −57.9 (3) |
C10—N1—C8—C9 | 176.11 (17) | O2—C14—C15—N2 | 57.9 (3) |
C20—N4—C9—N3 | 174.99 (14) | C19—N3—C16—C17 | −59.6 (2) |
C23—N4—C9—N3 | −57.4 (2) | C9—N3—C16—C17 | 171.50 (16) |
C20—N4—C9—C1 | 47.5 (2) | C18—O3—C17—C16 | −58.4 (2) |
C23—N4—C9—C1 | 175.20 (17) | N3—C16—C17—O3 | 59.8 (2) |
C20—N4—C9—C8 | −66.3 (2) | C17—O3—C18—C19 | 57.7 (2) |
C23—N4—C9—C8 | 61.4 (2) | C16—N3—C19—C18 | 58.5 (2) |
C19—N3—C9—N4 | 175.91 (14) | C9—N3—C19—C18 | −172.81 (15) |
C16—N3—C9—N4 | −57.90 (19) | O3—C18—C19—N3 | −58.3 (2) |
C19—N3—C9—C1 | −58.3 (2) | C9—N4—C20—C21 | −169.33 (16) |
C16—N3—C9—C1 | 67.9 (2) | C23—N4—C20—C21 | 59.7 (2) |
C19—N3—C9—C8 | 53.93 (19) | C22—O4—C21—C20 | 57.3 (3) |
C16—N3—C9—C8 | −179.89 (15) | N4—C20—C21—O4 | −59.2 (2) |
C2—C1—C9—N4 | 55.1 (3) | C21—O4—C22—C23 | −57.4 (3) |
C6—C1—C9—N4 | −124.33 (17) | C20—N4—C23—C22 | −59.6 (2) |
C2—C1—C9—N3 | −68.2 (2) | C9—N4—C23—C22 | 169.92 (18) |
C6—C1—C9—N3 | 112.37 (18) | O4—C22—C23—N4 | 59.0 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20B···O3i | 0.97 | 2.62 | 3.109 (3) | 112 |
C15—H15A···O3ii | 0.97 | 2.52 | 3.480 (2) | 173 |
C17—H17A···O2iii | 0.97 | 2.66 | 3.395 (3) | 132 |
C13—H13B···O4iv | 0.97 | 2.64 | 3.318 (3) | 128 |
Symmetry codes: (i) x, −y+1/2, z+1/2; (ii) −x+1, −y, −z; (iii) x−1, y, z; (iv) −x+1, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C23H34N4O4 |
Mr | 430.54 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 10.1772 (10), 14.2576 (14), 15.8950 (16) |
β (°) | 97.332 (2) |
V (Å3) | 2287.5 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.40 × 0.30 × 0.20 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2007) |
Tmin, Tmax | 0.660, 0.746 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12380, 5355, 2599 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.660 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.141, 1.01 |
No. of reflections | 5355 |
No. of parameters | 280 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.18, −0.16 |
Computer programs: APEX2 (Bruker, 2007), APEX2 and SAINT (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20B···O3i | 0.97 | 2.62 | 3.109 (3) | 112 |
C15—H15A···O3ii | 0.97 | 2.52 | 3.480 (2) | 173 |
C17—H17A···O2iii | 0.97 | 2.66 | 3.395 (3) | 132 |
C13—H13B···O4iv | 0.97 | 2.64 | 3.318 (3) | 128 |
Symmetry codes: (i) x, −y+1/2, z+1/2; (ii) −x+1, −y, −z; (iii) x−1, y, z; (iv) −x+1, −y+1, −z. |
Acknowledgements
The authors are grateful to the National Natural Science Foundation of China (project No. 20972099) and the Beijing Municipal Commission of Education for financial support.
References
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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.
Mannich base derivatives of indoline-2,3-dione (isatin) were reported having a wide range of biological activities such as antibacterial (Chiyanzu et al., 2005), anti-HIV (Sriram et al., 2004) and anticancer activity (Karali, 2002; Sirisoma et al., 2009; Solomon et al., 2009). To obtain isatin Mannich base analogues with a flexible ethylene linker between the N atom of the isatin and the amine group of the morpholine, we designed the reaction of 1-(2-bromoethyl)-5-methylindoline-2,3-dione with an excess of morpholine. Interestingly, an additional nucleophilic addition of morpholine to one carbonyl group on the isatin simultaneously occurred to give the title compound (Scheme 1), which might also exhibit potential antitumor properties. Herein, we report the crystal structure of this new compound.
In the title compound, C23H34N4O4, the morpholine rings adopt chair conformations. The N1 atom of the indol-2-one moiety is linked to the N2 atom of a morpholine ring through a flexible ethylene group with an almost cis conformation [the torsion angle N1—C10—C11—N2 is 59.7 (3)°, as shown in Fig. 1]. Such a fashion is different from the trans conformation [corresponding torsion angle of 175.74 (11)°] found in 2-(5-fluoro-2,3-dioxoindolin-1-yl)ethyl 4-methylpiperazine-1-carbodithioate reported by us recently (Wang et al., 2012). The two morpholine groups at C9 (sp3) exhibit a N4—C9—N3 bond angle of 107.45 (15)°. Along the c axis, the molecules are interconnected and arranged into arrays through intermolecular C20—H20B(methylene)···O3i(ether) interactions (see Table 1 and Fig. 2). The almost parallel arrays formed are further interconnected via other sets of C—H(methylene)···O(ether) interactions (Table 1), forming a three-dimensional framework (Fig. 3).