organic compounds
2-(4-Methylphenyl)-3-oxo-4-phenyl-2,3,3a,4,9,9a-hexahydro-1H-benzo[f]isoindole-6-carbonitrile
aSchool of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People's Republic of China
*Correspondence e-mail: yiminhu@yahoo.cn
In the title compound, C26H22N2O, one phenyl ring, one five-membered N-heterocyclic ring and one six-membered carbocyclic ring make up the hexahydrobenzo[f]isoindole core. Another phenyl group is attached to the heterocyclic N atom as a substituent. The non-aromatic five- and six-membered rings both exhibit boat conformations. In the crystal, weak C—H⋯O and C—H⋯N interactions establish the observed three-dimensional structure. The crystal studied was refined as an inversion twin.
Related literature
For background to domino reactions, see Zhao et al. (2012) and for palladium-catalyzed domino reactions, see Hu et al. (2009, 2010). For the wide variety of active pharmaceutical ingredients, natural products and other complex organic molecules economically accessible, see: Yu & Hu (2012); Wang & Hu (2011). For benzo[f]isoindol-1-one derivatives as effective intermediates, see: Rixson et al. (2012).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536813008568/im2425sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813008568/im2425Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813008568/im2425Isup3.cml
An oven-dried Schlenk flask was evacuated, filled with nitrogen, and then charged with N-allyl-3-phenyl-N-(p-tolyl)acrylamide (2.77 g, 10 mmol), 4-bromobenzonitrile (1.82 g, 10 mmol), tributylamine (3 ml), PPh3 (52.5 mg, 0.2 mmol), Pd(OAc)2 (24 mg, 0.1 mol), and DMF (10 ml) to give a yellow solution. The reaction mixture was heated to 413 K while stirring for 26 hours. The reaction mixture was then cooled to room temperature and the resulting yellow-orange mixture was diluted with Et2O (10 ml). The mixture was washed with H2O (15 ml) and the aqueous layer was extracted with Et2O (20 ml). The combined organic layers were dried (MgSO4), filtered, and concentrated in vacuo. The crude material was purified by flash
on silica gel (petroleum ether: EtOAc = 9:1) and recrystallized from EtOAc (yield 3.14 g, 83%). Colorless crystals suitable for X-ray diffraction were obtained by another recrystallization from a solution of the title compound in ethyl acetate over a period of one week.H atoms were positioned geometrically and refined using a riding model with C—H = 0.93–0.98 Å, and with Uiso(H) = 1.2 (1.5 for methyl groups) times Ueq(C).
Since the crystal obviously was a racemic twin it makes no sense to give information about
So the was omitted from CIF.Domino reactions have become an important tool of modern organic synthetic chemistry (Zhao et al., 2012). They have made a wide variety of active pharmaceutical ingredients, natural products and other complex organic molecules economically accessible (Yu et al., 2012; Wang et al., 2011). Benzo[f]isoindol-1-one derivatives, which have physiological activities themselves, are effective intermediates in the synthesis of many complex natural products (Rixson et al., 2012). We have reported some novel palladium-catalyzed domino reactions of aryl halides with
and diynes (Hu et al., 2010; Hu et al., 2009). The reaction of N-allyl-3-phenyl-N-(p-tolyl)acrylamide with 4-bromobenzonitrile, in the presence of palladium(II) acetate and triphenylphosphine in DMF at 413 K for 26 h unexpectedly generated title product.The crystal structural data of molecule (I), C26H22N2O, reveals that all the bond lengths and angles have normal values. An
is composed of one title compound molecule. The title compound molecule contains one phenyl ring, one five-membered N-heterocyclic ring and one six-membered carbocyclic ring to make up the hexahydro-benzo[f]isoindole core. Another phenyl group is attached to nitrogen as a substituent. The non-aromatic five-membered and six-membered ring both show a boat conformation. All the rings are not coplanar (figure 1). In the there are weak intermolecular C—H···O and C—H···N interactions (C25—H25 ···O1i (i: 1 - x,2 - y,-0.5 + z), C4—H4···N2ii (ii: -0.5 + x,2 - y,z) and C21—H21···O1iii (iii: x,1 + y,z)) that establish the observed 3D-structure (Figure 2).For background to domino reactions, see Zhao et al. (2012) and for palladium-catalyzed domino reactions, see Hu et al. (2009, 2010). For the wide variety of active pharmaceutical ingredients, natural products and other complex organic molecules economically accessible, see: Yu & Hu (2012); Wang & Hu (2011). For benzo[f]isoindol-1-one derivatives as effective intermediates, see: Rixson et al. (2012).
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C26H22N2O | Dx = 1.235 Mg m−3 |
Mr = 378.45 | Mo Kα radiation, λ = 0.71073 Å |
Orthorhombic, Pca21 | Cell parameters from 2537 reflections |
a = 25.005 (6) Å | θ = 2.1–25.4° |
b = 5.5023 (14) Å | µ = 0.08 mm−1 |
c = 14.790 (4) Å | T = 291 K |
V = 2034.9 (9) Å3 | Block, colourless |
Z = 4 | 0.28 × 0.24 × 0.22 mm |
F(000) = 800 |
Bruker SMART APEX CCD diffractometer | 4001 independent reflections |
Radiation source: sealed tube | 2187 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.068 |
phi and ω scans | θmax = 26.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −30→29 |
Tmin = 0.972, Tmax = 0.983 | k = −6→6 |
14617 measured reflections | l = −18→18 |
Refinement on F2 | 1 restraint |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.052 | H-atom parameters constrained |
wR(F2) = 0.095 | w = 1/[σ2(Fo2) + (0.030P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.03 | (Δ/σ)max < 0.001 |
4001 reflections | Δρmax = 0.13 e Å−3 |
264 parameters | Δρmin = −0.15 e Å−3 |
C26H22N2O | V = 2034.9 (9) Å3 |
Mr = 378.45 | Z = 4 |
Orthorhombic, Pca21 | Mo Kα radiation |
a = 25.005 (6) Å | µ = 0.08 mm−1 |
b = 5.5023 (14) Å | T = 291 K |
c = 14.790 (4) Å | 0.28 × 0.24 × 0.22 mm |
Bruker SMART APEX CCD diffractometer | 4001 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 2187 reflections with I > 2σ(I) |
Tmin = 0.972, Tmax = 0.983 | Rint = 0.068 |
14617 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 1 restraint |
wR(F2) = 0.095 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.13 e Å−3 |
4001 reflections | Δρmin = −0.15 e Å−3 |
264 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. Refined as a 2-component inversion twin. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.27416 (18) | −0.1214 (8) | 0.8866 (4) | 0.0920 (15) | |
H1A | 0.2484 | −0.0456 | 0.9255 | 0.138* | |
H1B | 0.2899 | −0.2577 | 0.9171 | 0.138* | |
H1C | 0.2568 | −0.1761 | 0.8323 | 0.138* | |
C2 | 0.31699 (18) | 0.0587 (8) | 0.8628 (3) | 0.0682 (12) | |
C3 | 0.31038 (18) | 0.2255 (8) | 0.7939 (3) | 0.0762 (13) | |
H3 | 0.2783 | 0.2264 | 0.7621 | 0.091* | |
C4 | 0.34912 (17) | 0.3895 (8) | 0.7706 (3) | 0.0741 (13) | |
H4 | 0.3424 | 0.5008 | 0.7247 | 0.089* | |
C5 | 0.39807 (16) | 0.3928 (7) | 0.8141 (3) | 0.0543 (10) | |
C6 | 0.40556 (18) | 0.2282 (8) | 0.8835 (3) | 0.0690 (13) | |
H6 | 0.4375 | 0.2277 | 0.9157 | 0.083* | |
C7 | 0.36579 (18) | 0.0645 (8) | 0.9050 (3) | 0.0751 (14) | |
H7 | 0.3724 | −0.0479 | 0.9506 | 0.090* | |
C8 | 0.42905 (15) | 0.7232 (7) | 0.7095 (3) | 0.0594 (11) | |
H8A | 0.4059 | 0.8575 | 0.7261 | 0.071* | |
H8B | 0.4135 | 0.6377 | 0.6585 | 0.071* | |
C9 | 0.48494 (15) | 0.8106 (7) | 0.6881 (2) | 0.0525 (10) | |
H9 | 0.5021 | 0.6863 | 0.6506 | 0.063* | |
C10 | 0.51232 (13) | 0.8093 (7) | 0.7792 (3) | 0.0515 (10) | |
H10 | 0.5022 | 0.9586 | 0.8110 | 0.062* | |
C11 | 0.48623 (16) | 0.6001 (7) | 0.8268 (3) | 0.0566 (11) | |
C12 | 0.57264 (14) | 0.8097 (7) | 0.7688 (2) | 0.0515 (10) | |
H12 | 0.5823 | 0.6549 | 0.7404 | 0.062* | |
C13 | 0.58818 (16) | 1.0120 (7) | 0.7015 (3) | 0.0545 (10) | |
C14 | 0.55105 (16) | 1.1225 (7) | 0.6438 (3) | 0.0523 (10) | |
C15 | 0.49270 (16) | 1.0529 (7) | 0.6417 (3) | 0.0640 (11) | |
H15A | 0.4806 | 1.0424 | 0.5795 | 0.077* | |
H15B | 0.4717 | 1.1763 | 0.6722 | 0.077* | |
C16 | 0.60352 (16) | 0.8242 (7) | 0.8567 (3) | 0.0520 (10) | |
C17 | 0.63873 (18) | 0.6434 (8) | 0.8796 (3) | 0.0755 (14) | |
H17 | 0.6434 | 0.5123 | 0.8407 | 0.091* | |
C18 | 0.6674 (2) | 0.6525 (11) | 0.9596 (4) | 0.0998 (18) | |
H18 | 0.6907 | 0.5270 | 0.9747 | 0.120* | |
C19 | 0.6615 (2) | 0.8440 (12) | 1.0156 (4) | 0.0884 (16) | |
H19 | 0.6810 | 0.8514 | 1.0690 | 0.106* | |
C20 | 0.62664 (19) | 1.0285 (10) | 0.9938 (3) | 0.0782 (14) | |
H20 | 0.6226 | 1.1602 | 1.0326 | 0.094* | |
C21 | 0.59746 (17) | 1.0182 (8) | 0.9137 (3) | 0.0625 (11) | |
H21 | 0.5739 | 1.1429 | 0.8989 | 0.075* | |
C22 | 0.64117 (16) | 1.0829 (8) | 0.6969 (3) | 0.0624 (11) | |
H22 | 0.6661 | 1.0069 | 0.7341 | 0.075* | |
C23 | 0.65808 (19) | 1.2639 (9) | 0.6386 (3) | 0.0681 (12) | |
C24 | 0.6207 (2) | 1.3755 (8) | 0.5835 (3) | 0.0665 (12) | |
H24 | 0.6314 | 1.4998 | 0.5448 | 0.080* | |
C25 | 0.56853 (19) | 1.3048 (7) | 0.5855 (3) | 0.0625 (12) | |
H25 | 0.5441 | 1.3796 | 0.5472 | 0.075* | |
C26 | 0.7132 (2) | 1.3289 (10) | 0.6345 (3) | 0.0920 (17) | |
N1 | 0.43779 (13) | 0.5579 (5) | 0.7866 (2) | 0.0536 (8) | |
N2 | 0.7571 (2) | 1.3807 (9) | 0.6321 (3) | 0.1284 (19) | |
O1 | 0.50390 (11) | 0.4871 (5) | 0.8918 (2) | 0.0770 (8) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.078 (3) | 0.098 (4) | 0.101 (4) | −0.015 (3) | 0.014 (3) | 0.018 (4) |
C2 | 0.070 (3) | 0.066 (3) | 0.069 (3) | −0.002 (2) | 0.008 (3) | 0.006 (3) |
C3 | 0.058 (3) | 0.088 (3) | 0.083 (3) | −0.009 (3) | −0.010 (3) | 0.022 (3) |
C4 | 0.056 (3) | 0.079 (3) | 0.087 (3) | −0.005 (3) | −0.012 (3) | 0.027 (3) |
C5 | 0.055 (3) | 0.055 (3) | 0.053 (2) | 0.005 (2) | 0.000 (2) | 0.004 (2) |
C6 | 0.066 (3) | 0.079 (3) | 0.062 (3) | −0.001 (3) | −0.004 (2) | 0.016 (3) |
C7 | 0.079 (3) | 0.083 (4) | 0.063 (3) | −0.007 (3) | −0.003 (3) | 0.022 (3) |
C8 | 0.057 (3) | 0.063 (3) | 0.058 (3) | −0.001 (2) | −0.009 (2) | 0.014 (2) |
C9 | 0.055 (3) | 0.056 (2) | 0.046 (2) | 0.003 (2) | −0.003 (2) | 0.003 (2) |
C10 | 0.050 (2) | 0.052 (2) | 0.052 (3) | 0.005 (2) | −0.002 (2) | 0.000 (2) |
C11 | 0.054 (3) | 0.060 (3) | 0.055 (3) | 0.009 (2) | 0.002 (2) | 0.003 (2) |
C12 | 0.054 (2) | 0.052 (2) | 0.048 (2) | 0.003 (2) | −0.002 (2) | −0.006 (2) |
C13 | 0.060 (3) | 0.061 (3) | 0.042 (2) | 0.002 (2) | 0.004 (2) | −0.010 (2) |
C14 | 0.060 (3) | 0.050 (2) | 0.046 (2) | 0.002 (2) | 0.002 (2) | −0.001 (2) |
C15 | 0.070 (3) | 0.067 (3) | 0.055 (2) | 0.004 (2) | −0.001 (2) | 0.010 (2) |
C16 | 0.053 (3) | 0.051 (3) | 0.052 (3) | −0.003 (2) | 0.000 (2) | 0.003 (2) |
C17 | 0.081 (3) | 0.062 (3) | 0.083 (4) | 0.010 (2) | −0.028 (3) | −0.003 (3) |
C18 | 0.101 (4) | 0.088 (4) | 0.111 (5) | −0.005 (3) | −0.050 (4) | 0.022 (4) |
C19 | 0.091 (4) | 0.112 (5) | 0.063 (3) | −0.022 (4) | −0.018 (3) | 0.018 (4) |
C20 | 0.086 (4) | 0.098 (4) | 0.051 (3) | −0.017 (3) | 0.009 (3) | −0.016 (3) |
C21 | 0.067 (3) | 0.074 (3) | 0.047 (3) | 0.000 (2) | 0.004 (2) | −0.007 (2) |
C22 | 0.059 (3) | 0.082 (3) | 0.046 (2) | −0.005 (2) | 0.001 (2) | −0.007 (2) |
C23 | 0.073 (3) | 0.092 (3) | 0.039 (2) | −0.023 (3) | 0.011 (2) | −0.011 (3) |
C24 | 0.092 (4) | 0.066 (3) | 0.042 (2) | −0.018 (3) | 0.014 (3) | −0.008 (2) |
C25 | 0.079 (3) | 0.062 (3) | 0.046 (3) | −0.004 (3) | 0.008 (2) | −0.001 (2) |
C26 | 0.094 (4) | 0.140 (5) | 0.042 (3) | −0.050 (4) | 0.004 (3) | −0.001 (3) |
N1 | 0.051 (2) | 0.055 (2) | 0.055 (2) | 0.0007 (17) | −0.0069 (18) | 0.0107 (17) |
N2 | 0.110 (4) | 0.214 (5) | 0.061 (3) | −0.072 (4) | −0.001 (3) | 0.005 (4) |
O1 | 0.0645 (17) | 0.096 (2) | 0.0705 (19) | −0.0025 (16) | −0.0153 (17) | 0.0313 (19) |
C1—C2 | 1.501 (5) | C12—C13 | 1.543 (5) |
C1—H1A | 0.9600 | C12—H12 | 0.9800 |
C1—H1B | 0.9600 | C13—C22 | 1.383 (5) |
C1—H1C | 0.9600 | C13—C14 | 1.400 (5) |
C2—C7 | 1.372 (5) | C14—C25 | 1.393 (5) |
C2—C3 | 1.380 (6) | C14—C15 | 1.509 (5) |
C3—C4 | 1.368 (6) | C15—H15A | 0.9700 |
C3—H3 | 0.9300 | C15—H15B | 0.9700 |
C4—C5 | 1.383 (5) | C16—C21 | 1.369 (5) |
C4—H4 | 0.9300 | C16—C17 | 1.371 (5) |
C5—C6 | 1.381 (5) | C17—C18 | 1.385 (6) |
C5—N1 | 1.406 (5) | C17—H17 | 0.9300 |
C6—C7 | 1.379 (5) | C18—C19 | 1.348 (7) |
C6—H6 | 0.9300 | C18—H18 | 0.9300 |
C7—H7 | 0.9300 | C19—C20 | 1.376 (6) |
C8—N1 | 1.475 (5) | C19—H19 | 0.9300 |
C8—C9 | 1.512 (5) | C20—C21 | 1.393 (6) |
C8—H8A | 0.9700 | C20—H20 | 0.9300 |
C8—H8B | 0.9700 | C21—H21 | 0.9300 |
C9—C15 | 1.512 (5) | C22—C23 | 1.384 (6) |
C9—C10 | 1.512 (5) | C22—H22 | 0.9300 |
C9—H9 | 0.9800 | C23—C24 | 1.383 (6) |
C10—C11 | 1.499 (5) | C23—C26 | 1.424 (6) |
C10—C12 | 1.516 (5) | C24—C25 | 1.363 (5) |
C10—H10 | 0.9800 | C24—H24 | 0.9300 |
C11—O1 | 1.227 (5) | C25—H25 | 0.9300 |
C11—N1 | 1.369 (5) | C26—N2 | 1.136 (6) |
C12—C16 | 1.514 (5) | ||
C2—C1—H1A | 109.5 | C10—C12—H12 | 106.8 |
C2—C1—H1B | 109.5 | C13—C12—H12 | 106.8 |
H1A—C1—H1B | 109.5 | C22—C13—C14 | 118.9 (4) |
C2—C1—H1C | 109.5 | C22—C13—C12 | 118.4 (4) |
H1A—C1—H1C | 109.5 | C14—C13—C12 | 122.6 (3) |
H1B—C1—H1C | 109.5 | C25—C14—C13 | 118.8 (4) |
C7—C2—C3 | 115.3 (4) | C25—C14—C15 | 118.3 (4) |
C7—C2—C1 | 122.9 (4) | C13—C14—C15 | 122.9 (3) |
C3—C2—C1 | 121.8 (4) | C14—C15—C9 | 109.8 (3) |
C4—C3—C2 | 122.7 (4) | C14—C15—H15A | 109.7 |
C4—C3—H3 | 118.7 | C9—C15—H15A | 109.7 |
C2—C3—H3 | 118.7 | C14—C15—H15B | 109.7 |
C3—C4—C5 | 121.2 (4) | C9—C15—H15B | 109.7 |
C3—C4—H4 | 119.4 | H15A—C15—H15B | 108.2 |
C5—C4—H4 | 119.4 | C21—C16—C17 | 119.0 (4) |
C6—C5—C4 | 117.2 (4) | C21—C16—C12 | 120.9 (4) |
C6—C5—N1 | 122.9 (4) | C17—C16—C12 | 120.1 (4) |
C4—C5—N1 | 119.9 (4) | C16—C17—C18 | 121.2 (5) |
C7—C6—C5 | 120.1 (4) | C16—C17—H17 | 119.4 |
C7—C6—H6 | 119.9 | C18—C17—H17 | 119.4 |
C5—C6—H6 | 119.9 | C19—C18—C17 | 119.7 (5) |
C2—C7—C6 | 123.4 (4) | C19—C18—H18 | 120.2 |
C2—C7—H7 | 118.3 | C17—C18—H18 | 120.2 |
C6—C7—H7 | 118.3 | C18—C19—C20 | 120.2 (5) |
N1—C8—C9 | 102.8 (3) | C18—C19—H19 | 119.9 |
N1—C8—H8A | 111.2 | C20—C19—H19 | 119.9 |
C9—C8—H8A | 111.2 | C19—C20—C21 | 120.0 (5) |
N1—C8—H8B | 111.2 | C19—C20—H20 | 120.0 |
C9—C8—H8B | 111.2 | C21—C20—H20 | 120.0 |
H8A—C8—H8B | 109.1 | C16—C21—C20 | 119.9 (4) |
C8—C9—C15 | 119.6 (3) | C16—C21—H21 | 120.1 |
C8—C9—C10 | 103.3 (3) | C20—C21—H21 | 120.1 |
C15—C9—C10 | 110.5 (3) | C13—C22—C23 | 121.7 (4) |
C8—C9—H9 | 107.6 | C13—C22—H22 | 119.1 |
C15—C9—H9 | 107.6 | C23—C22—H22 | 119.1 |
C10—C9—H9 | 107.6 | C24—C23—C22 | 118.7 (4) |
C11—C10—C9 | 103.0 (3) | C24—C23—C26 | 121.1 (5) |
C11—C10—C12 | 118.8 (3) | C22—C23—C26 | 120.2 (5) |
C9—C10—C12 | 111.1 (3) | C25—C24—C23 | 120.4 (4) |
C11—C10—H10 | 107.8 | C25—C24—H24 | 119.8 |
C9—C10—H10 | 107.8 | C23—C24—H24 | 119.8 |
C12—C10—H10 | 107.8 | C24—C25—C14 | 121.3 (4) |
O1—C11—N1 | 125.0 (4) | C24—C25—H25 | 119.3 |
O1—C11—C10 | 126.9 (4) | C14—C25—H25 | 119.3 |
N1—C11—C10 | 108.1 (3) | N2—C26—C23 | 179.3 (5) |
C16—C12—C10 | 114.8 (3) | C11—N1—C5 | 127.5 (3) |
C16—C12—C13 | 112.8 (3) | C11—N1—C8 | 111.3 (3) |
C10—C12—C13 | 108.5 (3) | C5—N1—C8 | 121.2 (3) |
C16—C12—H12 | 106.8 | ||
C7—C2—C3—C4 | −1.5 (7) | C8—C9—C15—C14 | 169.1 (4) |
C1—C2—C3—C4 | −179.3 (5) | C10—C9—C15—C14 | 49.4 (4) |
C2—C3—C4—C5 | 1.5 (7) | C10—C12—C16—C21 | −60.2 (5) |
C3—C4—C5—C6 | −1.7 (6) | C13—C12—C16—C21 | 64.8 (4) |
C3—C4—C5—N1 | 177.8 (4) | C10—C12—C16—C17 | 120.8 (4) |
C4—C5—C6—C7 | 2.0 (6) | C13—C12—C16—C17 | −114.2 (4) |
N1—C5—C6—C7 | −177.5 (4) | C21—C16—C17—C18 | 1.0 (7) |
C3—C2—C7—C6 | 1.9 (7) | C12—C16—C17—C18 | −180.0 (4) |
C1—C2—C7—C6 | 179.6 (4) | C16—C17—C18—C19 | −1.1 (8) |
C5—C6—C7—C2 | −2.2 (7) | C17—C18—C19—C20 | 0.7 (8) |
N1—C8—C9—C15 | −154.6 (3) | C18—C19—C20—C21 | −0.1 (7) |
N1—C8—C9—C10 | −31.4 (4) | C17—C16—C21—C20 | −0.4 (6) |
C8—C9—C10—C11 | 32.8 (4) | C12—C16—C21—C20 | −179.5 (4) |
C15—C9—C10—C11 | 161.9 (3) | C19—C20—C21—C16 | 0.0 (6) |
C8—C9—C10—C12 | 161.0 (3) | C14—C13—C22—C23 | 1.7 (6) |
C15—C9—C10—C12 | −69.8 (4) | C12—C13—C22—C23 | −179.7 (4) |
C9—C10—C11—O1 | 159.3 (4) | C13—C22—C23—C24 | −0.1 (6) |
C12—C10—C11—O1 | 36.0 (6) | C13—C22—C23—C26 | −178.8 (4) |
C9—C10—C11—N1 | −22.2 (4) | C22—C23—C24—C25 | −1.3 (6) |
C12—C10—C11—N1 | −145.5 (3) | C26—C23—C24—C25 | 177.3 (4) |
C11—C10—C12—C16 | −64.4 (5) | C23—C24—C25—C14 | 1.2 (6) |
C9—C10—C12—C16 | 176.4 (3) | C13—C14—C25—C24 | 0.3 (6) |
C11—C10—C12—C13 | 168.4 (3) | C15—C14—C25—C24 | −179.6 (4) |
C9—C10—C12—C13 | 49.2 (4) | O1—C11—N1—C5 | 4.4 (6) |
C16—C12—C13—C22 | 37.2 (5) | C10—C11—N1—C5 | −174.2 (3) |
C10—C12—C13—C22 | 165.6 (3) | O1—C11—N1—C8 | −179.2 (4) |
C16—C12—C13—C14 | −144.2 (4) | C10—C11—N1—C8 | 2.2 (4) |
C10—C12—C13—C14 | −15.8 (5) | C6—C5—N1—C11 | −6.8 (6) |
C22—C13—C14—C25 | −1.7 (6) | C4—C5—N1—C11 | 173.8 (4) |
C12—C13—C14—C25 | 179.7 (3) | C6—C5—N1—C8 | 177.2 (4) |
C22—C13—C14—C15 | 178.2 (4) | C4—C5—N1—C8 | −2.3 (5) |
C12—C13—C14—C15 | −0.4 (6) | C9—C8—N1—C11 | 18.7 (4) |
C25—C14—C15—C9 | 163.7 (3) | C9—C8—N1—C5 | −164.7 (3) |
C13—C14—C15—C9 | −16.2 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
C25—H25···O1i | 0.93 | 2.69 | 3.577 (6) | 159 |
C4—H4···N2ii | 0.93 | 2.62 | 3.329 (6) | 134 |
C21—H21···O1iii | 0.93 | 2.58 | 3.498 (5) | 169 |
Symmetry codes: (i) −x+1, −y+2, z−1/2; (ii) x−1/2, −y+2, z; (iii) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C26H22N2O |
Mr | 378.45 |
Crystal system, space group | Orthorhombic, Pca21 |
Temperature (K) | 291 |
a, b, c (Å) | 25.005 (6), 5.5023 (14), 14.790 (4) |
V (Å3) | 2034.9 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.28 × 0.24 × 0.22 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.972, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14617, 4001, 2187 |
Rint | 0.068 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.052, 0.095, 1.03 |
No. of reflections | 4001 |
No. of parameters | 264 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.13, −0.15 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C25—H25···O1i | 0.93 | 2.69 | 3.577 (6) | 159 |
C4—H4···N2ii | 0.93 | 2.62 | 3.329 (6) | 134 |
C21—H21···O1iii | 0.93 | 2.58 | 3.498 (5) | 169 |
Symmetry codes: (i) −x+1, −y+2, z−1/2; (ii) x−1/2, −y+2, z; (iii) x, y+1, z. |
Acknowledgements
We thank the National Science Foundation of China (project Nos. 21272005 and 21072003) for financial support of this work.
References
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Domino reactions have become an important tool of modern organic synthetic chemistry (Zhao et al., 2012). They have made a wide variety of active pharmaceutical ingredients, natural products and other complex organic molecules economically accessible (Yu et al., 2012; Wang et al., 2011). Benzo[f]isoindol-1-one derivatives, which have physiological activities themselves, are effective intermediates in the synthesis of many complex natural products (Rixson et al., 2012). We have reported some novel palladium-catalyzed domino reactions of aryl halides with olefins and diynes (Hu et al., 2010; Hu et al., 2009). The reaction of N-allyl-3-phenyl-N-(p-tolyl)acrylamide with 4-bromobenzonitrile, in the presence of palladium(II) acetate and triphenylphosphine in DMF at 413 K for 26 h unexpectedly generated title product.
The crystal structural data of molecule (I), C26H22N2O, reveals that all the bond lengths and angles have normal values. An asymmetric unit is composed of one title compound molecule. The title compound molecule contains one phenyl ring, one five-membered N-heterocyclic ring and one six-membered carbocyclic ring to make up the hexahydro-benzo[f]isoindole core. Another phenyl group is attached to nitrogen as a substituent. The non-aromatic five-membered and six-membered ring both show a boat conformation. All the rings are not coplanar (figure 1). In the crystal structure there are weak intermolecular C—H···O and C—H···N interactions (C25—H25 ···O1i (i: 1 - x,2 - y,-0.5 + z), C4—H4···N2ii (ii: -0.5 + x,2 - y,z) and C21—H21···O1iii (iii: x,1 + y,z)) that establish the observed 3D-structure (Figure 2).