organic compounds
1′-Methyl-4′-(1-naphthyl)-3′′-(1-naphthylmethylene)acenaphthene-1-spiro-2′-pyrrolidine-3′-spiro-1′′-cyclohexane-2,2′′-dione
aDepartment of Physics, Kalasalingam University, Anand Nagar, Krishnan Koil 626 190, India, and bDepartment of Organic Chemistry, Madurai Kamaraj University, Madurai 625 021, India
*Correspondence e-mail: athi81s@yahoo.co.in
In the title compound, C42H33NO2, the six-membered cyclohexanone ring adopts a slightly distorted chair conformation and the five-membered pyrrolidine ring is in an The molecular structure features four intramolecular C—H⋯O interactions and an intramolecular C—H⋯π interaction. Furthermore, the crystal packing is stabilized by an intermolecular C—H⋯O and three intermolecular C—H⋯π interactions.
Related literature
For the biological importance of pyran derivatives, see: Babu & Raghunathan (2007); Chande et al. (2005); De March et al. (2002); Escolano & Jones (2000); Fejes et al. (2001); Poornachandran & Raghunathan (2006); Raj & Raghunathan (2001); Raj et al. (2003); Pinna et al. (2002). For ring puckering analysis, see: Cremer & Pople (1975). For hydrogen-bonding interactions, see: Desiraju & Steiner (1999).
Experimental
Crystal data
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Refinement
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Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell CAD-4 Express; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXTL/PC (Bruker, 2000); program(s) used to refine structure: SHELXTL/PC; molecular graphics: ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL/PC.
Supporting information
https://doi.org/10.1107/S1600536807061387/sj2436sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807061387/sj2436Isup2.hkl
A mixture of 2,6-bis[(E)-1-naphthylmethylidene] cyclohexanone (1 mmol), acenaphthenequinone (1 mmol) and sarcosine (1 mmol) was dissolved in methanol (10 ml) and refluxed for 1 h. After completion of the reaction as evident from TLC, the mixture was poured into water (50 ml), the precipitated solid was filtered and washed with water (100 ml) to obtain pure 1-methyl-4-(1-naphthyl)-pyrrolo-(spiro-[2.2"]-acenaphthene-1'-one) -spiro[3.3']-6'-(1-naphthyl)methylidenecyclohexanone as yellow solid. The compound was recrystallized from a 1:1 mixture of methanol:ethyl acetate and a yellow solid is obtained, Yield 98%
All the H atoms were positioned geometrically and refined using a riding model, with C—H = 0.93–0.97 Å and N—H = 0.86 Å and Uiso(H) = 1.2–1.5 Ueq (parent atom).
1,3-Dipolar α-amino acids generating reactive 1,3-dipoles (Babu & Raghunathan, 2007).
of to affords pyrrolidines with high selectivities. are reactive and versatile 1,3-dipoles, which react readily with diverse dipolarophiles affording pyrrolizines, pyrrolidines and pyrazolidines (Fejes et al., 2001; De March et al., 2002). Pyrrolidine derivatives are widely used as organic catalysts and also serve as important structural units in biologically active molecules. Pyrrolidine derivatives, apart from displaying important biological activities (Pinna et al., 2002; Escolano & Jones, 2000), are present in natural products such as cephalotoxin, kainic acid, domoic acid and quinocarcin. The of to dipolarophiles with exocyclic double bonds affords spiro-pyrrolidines (Raj & Raghunathan, 2001; Poornachandran & Raghunathan, 2006), which display important biological activities (Raj et al., 2003). Synthesis of has drawn considerable attention from chemists, in view of their very good antimycobacterial activity (Chande et al., 2005). Acenaphthenequinone is a versatile precursor for azomethine ylide as it reacts with variousIn the title compound (I), Fig. 1, the six-membered cyclohexanone ring adopts a slightly distorted chair conformation [q2=0.283 (3) Å, π2=202.3 (5)° and q3=0.419 (3) Å; Cremer & Pople, 1975] and the five-membered pyrrolidine ring is in [q2=0.401 (3) Å and π2=351.5 (4)°; Cremer & Pople, 1975] (Fig. 1). The dihedral angles between the acenaphthene group and the planes through the naphthyl rings are observed to be 78.7 (1) and 33.2 (1)°. Planes through the naphthyl units themselves are oriented at a dihedral angle of 68.3 (1)°.
The molecular structure features four C—H···O and a C—H···π intramolecular interactions (Desiraju & Steiner, 1999) and the crystal packing is further stabilized by a C—H···O and three C—H···π intermolecular interactions (Fig 2; Table 1). The centroids in detailed in Table 1 are identified as follows: Cg1 - ring C7/C70–72/C80; Cg2 - ring C95–100; Cg3 - ring C26–31; Cg4 - ring C72–76/80.
For the biological importance of pyran derivatives, see: Babu & Raghunathan (2007); Chande et al. (2005); De March et al. (2002); Escolano & Jones (2000); Fejes et al. (2001); Poornachandran & Raghunathan (2006); Raj & Raghunathan (2001); Raj et al. (2003); Pinna et al. (2002). For ring puckering analysis, see: Cremer & Pople (1975). For hydrogen-bonding interactons, see: Desiraju & Steiner (1999).
Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell
CAD-4 EXPRESS (Enraf–Nonius, 1994); data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXTL/PC (Bruker, 2000); program(s) used to refine structure: SHELXTL/PC (Bruker, 2000); molecular graphics: ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL/PC (Bruker, 2000).Fig. 1. The molecular structure of the title compound (I) with the numbering scheme for the atoms and 50% probability displacement ellipsoids. H atoms are omitted for clarity. | |
Fig. 2. Packing diagram of the molecules, viewed down the a-axis. |
C42H33NO2 | F(000) = 1232 |
Mr = 583.69 | Dx = 1.242 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 25 reflections |
a = 12.4398 (8) Å | θ = 9.4–13.6° |
b = 17.3501 (11) Å | µ = 0.08 mm−1 |
c = 14.4685 (9) Å | T = 293 K |
β = 90.728 (17)° | Block, pale yellow |
V = 3122.5 (3) Å3 | 0.22 × 0.18 × 0.16 mm |
Z = 4 |
Nonius MACH3 sealed tube diffractometer | 3098 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.022 |
Graphite monochromator | θmax = 25.0°, θmin = 2.0° |
ω–2θ scans | h = 0→14 |
Absorption correction: ψ scan (North et al., 1968) | k = −1→20 |
Tmin = 0.943, Tmax = 0.986 | l = −17→17 |
6169 measured reflections | 3 standard reflections every 60 min |
5489 independent reflections | intensity decay: none |
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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.164 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0776P)2 + 0.7574P] where P = (Fo2 + 2Fc2)/3 |
5489 reflections | (Δ/σ)max < 0.001 |
407 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C42H33NO2 | V = 3122.5 (3) Å3 |
Mr = 583.69 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 12.4398 (8) Å | µ = 0.08 mm−1 |
b = 17.3501 (11) Å | T = 293 K |
c = 14.4685 (9) Å | 0.22 × 0.18 × 0.16 mm |
β = 90.728 (17)° |
Nonius MACH3 sealed tube diffractometer | 3098 reflections with I > 2σ(I) |
Absorption correction: ψ scan (North et al., 1968) | Rint = 0.022 |
Tmin = 0.943, Tmax = 0.986 | 3 standard reflections every 60 min |
6169 measured reflections | intensity decay: none |
5489 independent reflections |
R[F2 > 2σ(F2)] = 0.050 | 0 restraints |
wR(F2) = 0.164 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.31 e Å−3 |
5489 reflections | Δρmin = −0.24 e Å−3 |
407 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 | ||
C31 | 0.40070 (19) | 0.14164 (18) | 1.02686 (18) | 0.0648 (7) | |
C23 | 0.4443 (2) | 0.26622 (19) | 0.9649 (2) | 0.0809 (8) | |
H23 | 0.4609 | 0.2977 | 0.9150 | 0.097* | |
C96 | 0.4902 (5) | 0.3913 (2) | 0.4021 (3) | 0.1277 (18) | |
H96 | 0.4749 | 0.4354 | 0.3680 | 0.153* | |
C26 | 0.3922 (2) | 0.1747 (2) | 1.1160 (2) | 0.0769 (8) | |
C1 | 0.4091 (2) | 0.13447 (13) | 0.69369 (16) | 0.0542 (6) | |
C76 | 0.1547 (2) | −0.07341 (14) | 0.80960 (19) | 0.0681 (7) | |
C80 | 0.1785 (2) | −0.02788 (13) | 0.73238 (17) | 0.0573 (6) | |
C22 | 0.4280 (2) | 0.18940 (17) | 0.95041 (18) | 0.0653 (7) | |
C95 | 0.4139 (4) | 0.3296 (2) | 0.4043 (2) | 0.0971 (11) | |
C27 | 0.3649 (3) | 0.1256 (3) | 1.1910 (2) | 0.1050 (12) | |
H27 | 0.3605 | 0.1462 | 1.2502 | 0.126* | |
O1 | 0.11519 (16) | 0.06038 (12) | 0.52182 (13) | 0.0769 (5) | |
C98 | 0.6076 (3) | 0.3212 (2) | 0.5014 (3) | 0.1121 (13) | |
H98 | 0.6728 | 0.3183 | 0.5334 | 0.135* | |
C99 | 0.5353 (3) | 0.26097 (18) | 0.5068 (2) | 0.0833 (9) | |
H99 | 0.5523 | 0.2182 | 0.5429 | 0.100* | |
C7 | 0.27886 (19) | 0.04002 (13) | 0.61796 (16) | 0.0553 (6) | |
C2 | 0.37832 (18) | 0.17015 (14) | 0.78418 (16) | 0.0539 (6) | |
N2 | 0.34277 (17) | 0.00032 (12) | 0.54755 (15) | 0.0670 (6) | |
C29 | 0.3521 (3) | 0.0180 (2) | 1.0906 (2) | 0.0988 (10) | |
H29 | 0.3383 | −0.0342 | 1.0818 | 0.119* | |
C21 | 0.4406 (2) | 0.15553 (16) | 0.85697 (18) | 0.0654 (7) | |
H21 | 0.4971 | 0.1211 | 0.8489 | 0.079* | |
C25 | 0.4114 (2) | 0.2541 (3) | 1.1274 (2) | 0.0935 (11) | |
H25 | 0.4069 | 0.2760 | 1.1859 | 0.112* | |
C28 | 0.3450 (3) | 0.0490 (3) | 1.1782 (3) | 0.1136 (13) | |
H28 | 0.3269 | 0.0179 | 1.2280 | 0.136* | |
C5 | 0.2369 (2) | 0.18867 (14) | 0.62718 (16) | 0.0554 (6) | |
H5A | 0.2676 | 0.2383 | 0.6114 | 0.067* | |
H5B | 0.1783 | 0.1785 | 0.5840 | 0.067* | |
C8 | 0.3543 (2) | 0.05347 (16) | 0.47035 (19) | 0.0742 (8) | |
H8A | 0.2881 | 0.0573 | 0.4345 | 0.089* | |
H8B | 0.4119 | 0.0375 | 0.4300 | 0.089* | |
C3 | 0.2801 (2) | 0.22026 (16) | 0.78963 (17) | 0.0640 (7) | |
H3A | 0.2994 | 0.2730 | 0.7748 | 0.077* | |
H3B | 0.2533 | 0.2195 | 0.8523 | 0.077* | |
C92 | 0.2646 (3) | 0.2095 (2) | 0.4123 (2) | 0.0912 (10) | |
H92 | 0.2142 | 0.1699 | 0.4143 | 0.109* | |
C30 | 0.3787 (2) | 0.06225 (19) | 1.0169 (2) | 0.0760 (8) | |
H30 | 0.3826 | 0.0398 | 0.9586 | 0.091* | |
C75 | 0.0458 (3) | −0.09408 (18) | 0.8194 (2) | 0.0869 (9) | |
H75 | 0.0254 | −0.1231 | 0.8702 | 0.104* | |
C74 | −0.0301 (3) | −0.07252 (19) | 0.7561 (3) | 0.0910 (10) | |
H74 | −0.1010 | −0.0877 | 0.7647 | 0.109* | |
C72 | 0.1000 (2) | −0.00583 (15) | 0.66737 (17) | 0.0603 (6) | |
C71 | 0.1555 (2) | 0.03648 (14) | 0.59335 (18) | 0.0589 (6) | |
C94 | 0.3165 (5) | 0.3341 (3) | 0.3563 (3) | 0.1228 (17) | |
H94 | 0.3022 | 0.3779 | 0.3212 | 0.147* | |
C93 | 0.2409 (4) | 0.2770 (3) | 0.3584 (2) | 0.1118 (13) | |
H93 | 0.1762 | 0.2818 | 0.3260 | 0.134* | |
C9 | 0.3810 (2) | 0.12982 (14) | 0.51825 (17) | 0.0609 (7) | |
H9 | 0.4585 | 0.1292 | 0.5311 | 0.073* | |
C24 | 0.4365 (2) | 0.2991 (2) | 1.0536 (3) | 0.0944 (11) | |
H24 | 0.4485 | 0.3516 | 1.0618 | 0.113* | |
C97 | 0.5839 (5) | 0.3858 (3) | 0.4489 (4) | 0.143 (2) | |
H97 | 0.6334 | 0.4259 | 0.4459 | 0.171* | |
C100 | 0.4371 (3) | 0.26315 (16) | 0.45885 (19) | 0.0763 (9) | |
C6 | 0.32354 (19) | 0.12593 (13) | 0.61563 (15) | 0.0528 (6) | |
C73 | −0.0050 (2) | −0.02810 (17) | 0.6779 (2) | 0.0769 (8) | |
H73 | −0.0578 | −0.0143 | 0.6349 | 0.092* | |
C91 | 0.3588 (2) | 0.20153 (16) | 0.46075 (18) | 0.0699 (8) | |
C4 | 0.19211 (19) | 0.19324 (15) | 0.72368 (16) | 0.0580 (6) | |
H4A | 0.1663 | 0.1430 | 0.7425 | 0.070* | |
H4B | 0.1322 | 0.2290 | 0.7247 | 0.070* | |
C77 | 0.2434 (3) | −0.09586 (15) | 0.8653 (2) | 0.0808 (9) | |
H77 | 0.2324 | −0.1236 | 0.9194 | 0.097* | |
C78 | 0.3445 (3) | −0.07686 (16) | 0.8400 (2) | 0.0829 (9) | |
H78 | 0.4019 | −0.0943 | 0.8761 | 0.100* | |
C79 | 0.3667 (2) | −0.03199 (15) | 0.7614 (2) | 0.0736 (8) | |
H79 | 0.4372 | −0.0209 | 0.7456 | 0.088* | |
C70 | 0.2830 (2) | −0.00505 (13) | 0.70856 (17) | 0.0572 (6) | |
C10 | 0.3049 (3) | −0.07619 (17) | 0.5196 (2) | 0.0916 (10) | |
H10A | 0.2343 | −0.0720 | 0.4925 | 0.137* | |
H10B | 0.3023 | −0.1092 | 0.5728 | 0.137* | |
H10C | 0.3532 | −0.0976 | 0.4753 | 0.137* | |
O2 | 0.50114 (14) | 0.11274 (11) | 0.68220 (12) | 0.0725 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C31 | 0.0473 (14) | 0.090 (2) | 0.0573 (16) | 0.0081 (13) | −0.0047 (11) | −0.0089 (15) |
C23 | 0.081 (2) | 0.082 (2) | 0.079 (2) | −0.0038 (16) | −0.0039 (16) | −0.0090 (17) |
C96 | 0.202 (5) | 0.071 (3) | 0.113 (4) | 0.006 (3) | 0.079 (4) | 0.021 (2) |
C26 | 0.0566 (16) | 0.111 (3) | 0.0627 (18) | 0.0165 (16) | −0.0038 (13) | −0.0151 (18) |
C1 | 0.0554 (15) | 0.0486 (14) | 0.0588 (15) | −0.0017 (11) | 0.0139 (11) | 0.0046 (11) |
C76 | 0.095 (2) | 0.0458 (14) | 0.0639 (17) | −0.0112 (14) | 0.0151 (15) | −0.0039 (13) |
C80 | 0.0722 (17) | 0.0434 (13) | 0.0566 (15) | −0.0049 (12) | 0.0085 (13) | −0.0059 (12) |
C22 | 0.0543 (15) | 0.0771 (19) | 0.0642 (17) | 0.0040 (13) | −0.0078 (12) | −0.0079 (15) |
C95 | 0.145 (3) | 0.072 (2) | 0.076 (2) | 0.024 (2) | 0.050 (2) | 0.0145 (18) |
C27 | 0.091 (2) | 0.165 (4) | 0.060 (2) | 0.020 (3) | 0.0118 (17) | −0.009 (2) |
O1 | 0.0827 (13) | 0.0851 (13) | 0.0625 (12) | −0.0054 (10) | −0.0116 (10) | 0.0023 (10) |
C98 | 0.121 (3) | 0.087 (3) | 0.130 (3) | −0.026 (2) | 0.062 (2) | −0.022 (2) |
C99 | 0.090 (2) | 0.0696 (19) | 0.092 (2) | −0.0005 (17) | 0.0401 (19) | −0.0078 (16) |
C7 | 0.0601 (15) | 0.0514 (14) | 0.0547 (14) | −0.0004 (11) | 0.0092 (11) | −0.0004 (11) |
C2 | 0.0542 (14) | 0.0565 (15) | 0.0513 (14) | −0.0078 (12) | 0.0064 (11) | 0.0007 (11) |
N2 | 0.0743 (14) | 0.0531 (12) | 0.0740 (14) | 0.0009 (11) | 0.0165 (11) | −0.0073 (11) |
C29 | 0.099 (2) | 0.110 (3) | 0.088 (2) | 0.001 (2) | 0.0126 (19) | 0.013 (2) |
C21 | 0.0592 (15) | 0.0738 (18) | 0.0633 (16) | 0.0051 (13) | 0.0011 (13) | −0.0059 (14) |
C25 | 0.071 (2) | 0.129 (3) | 0.080 (2) | 0.012 (2) | −0.0083 (17) | −0.039 (2) |
C28 | 0.109 (3) | 0.148 (4) | 0.084 (3) | 0.015 (3) | 0.023 (2) | 0.025 (3) |
C5 | 0.0639 (15) | 0.0500 (14) | 0.0525 (14) | 0.0019 (11) | 0.0053 (11) | 0.0007 (11) |
C8 | 0.086 (2) | 0.0732 (19) | 0.0637 (17) | −0.0031 (15) | 0.0229 (15) | −0.0104 (14) |
C3 | 0.0688 (16) | 0.0680 (17) | 0.0553 (15) | 0.0050 (13) | 0.0086 (12) | −0.0020 (13) |
C92 | 0.110 (3) | 0.106 (3) | 0.0574 (17) | 0.025 (2) | 0.0134 (17) | 0.0077 (17) |
C30 | 0.0715 (18) | 0.090 (2) | 0.0669 (18) | 0.0040 (16) | 0.0056 (14) | −0.0005 (16) |
C75 | 0.110 (3) | 0.0688 (19) | 0.082 (2) | −0.0224 (19) | 0.030 (2) | −0.0024 (17) |
C74 | 0.082 (2) | 0.090 (2) | 0.102 (3) | −0.0288 (19) | 0.036 (2) | −0.019 (2) |
C72 | 0.0638 (16) | 0.0558 (15) | 0.0615 (15) | −0.0080 (12) | 0.0086 (12) | −0.0101 (12) |
C71 | 0.0660 (16) | 0.0539 (15) | 0.0568 (15) | −0.0013 (12) | 0.0014 (12) | −0.0084 (13) |
C94 | 0.190 (5) | 0.104 (3) | 0.076 (2) | 0.057 (3) | 0.057 (3) | 0.029 (2) |
C93 | 0.134 (3) | 0.134 (4) | 0.068 (2) | 0.052 (3) | 0.020 (2) | 0.011 (2) |
C9 | 0.0692 (16) | 0.0583 (16) | 0.0556 (15) | −0.0022 (12) | 0.0161 (12) | −0.0016 (12) |
C24 | 0.076 (2) | 0.092 (2) | 0.115 (3) | 0.0027 (18) | −0.014 (2) | −0.038 (2) |
C97 | 0.194 (6) | 0.089 (3) | 0.147 (5) | −0.026 (4) | 0.082 (4) | −0.004 (3) |
C100 | 0.110 (2) | 0.0607 (18) | 0.0590 (17) | 0.0103 (17) | 0.0449 (17) | 0.0025 (14) |
C6 | 0.0600 (14) | 0.0499 (14) | 0.0486 (13) | −0.0029 (11) | 0.0101 (11) | 0.0006 (11) |
C73 | 0.0668 (18) | 0.083 (2) | 0.082 (2) | −0.0135 (15) | 0.0081 (15) | −0.0172 (17) |
C91 | 0.088 (2) | 0.0700 (18) | 0.0520 (15) | 0.0099 (16) | 0.0259 (15) | 0.0033 (13) |
C4 | 0.0556 (14) | 0.0620 (15) | 0.0566 (14) | 0.0066 (12) | 0.0081 (11) | 0.0004 (12) |
C77 | 0.130 (3) | 0.0462 (16) | 0.0663 (18) | −0.0080 (17) | 0.0000 (19) | 0.0075 (13) |
C78 | 0.109 (3) | 0.0551 (17) | 0.084 (2) | 0.0058 (17) | −0.0210 (19) | 0.0105 (16) |
C79 | 0.0805 (19) | 0.0548 (16) | 0.085 (2) | 0.0013 (14) | −0.0076 (16) | 0.0097 (15) |
C70 | 0.0646 (16) | 0.0441 (13) | 0.0628 (15) | −0.0005 (12) | 0.0034 (12) | 0.0024 (12) |
C10 | 0.105 (2) | 0.0616 (19) | 0.109 (3) | −0.0059 (17) | 0.0251 (19) | −0.0234 (17) |
O2 | 0.0570 (11) | 0.0907 (14) | 0.0700 (12) | 0.0072 (10) | 0.0124 (9) | −0.0036 (10) |
C31—C30 | 1.411 (4) | C25—H25 | 0.9300 |
C31—C26 | 1.417 (4) | C28—H28 | 0.9300 |
C31—C22 | 1.427 (4) | C5—C4 | 1.512 (3) |
C23—C22 | 1.364 (4) | C5—C6 | 1.543 (3) |
C23—C24 | 1.409 (4) | C5—H5A | 0.9700 |
C23—H23 | 0.9300 | C5—H5B | 0.9700 |
C96—C97 | 1.344 (7) | C8—C9 | 1.530 (4) |
C96—C95 | 1.431 (6) | C8—H8A | 0.9700 |
C96—H96 | 0.9300 | C8—H8B | 0.9700 |
C26—C25 | 1.407 (5) | C3—C4 | 1.517 (3) |
C26—C27 | 1.425 (5) | C3—H3A | 0.9700 |
C1—O2 | 1.218 (3) | C3—H3B | 0.9700 |
C1—C2 | 1.502 (3) | C92—C91 | 1.365 (4) |
C1—C6 | 1.549 (3) | C92—C93 | 1.436 (5) |
C76—C80 | 1.403 (3) | C92—H92 | 0.9300 |
C76—C75 | 1.411 (4) | C30—H30 | 0.9300 |
C76—C77 | 1.412 (4) | C75—C74 | 1.359 (4) |
C80—C72 | 1.401 (3) | C75—H75 | 0.9300 |
C80—C70 | 1.405 (3) | C74—C73 | 1.407 (4) |
C22—C21 | 1.484 (4) | C74—H74 | 0.9300 |
C95—C94 | 1.391 (6) | C72—C73 | 1.373 (4) |
C95—C100 | 1.425 (4) | C72—C71 | 1.477 (4) |
C27—C28 | 1.363 (5) | C94—C93 | 1.366 (6) |
C27—H27 | 0.9300 | C94—H94 | 0.9300 |
O1—C71 | 1.217 (3) | C93—H93 | 0.9300 |
C98—C99 | 1.381 (4) | C9—C91 | 1.520 (4) |
C98—C97 | 1.384 (6) | C9—C6 | 1.589 (3) |
C98—H98 | 0.9300 | C9—H9 | 0.9800 |
C99—C100 | 1.398 (4) | C24—H24 | 0.9300 |
C99—H99 | 0.9300 | C97—H97 | 0.9300 |
C7—N2 | 1.471 (3) | C100—C91 | 1.447 (4) |
C7—C70 | 1.527 (3) | C73—H73 | 0.9300 |
C7—C71 | 1.572 (3) | C4—H4A | 0.9700 |
C7—C6 | 1.591 (3) | C4—H4B | 0.9700 |
C2—C21 | 1.324 (3) | C77—C78 | 1.355 (4) |
C2—C3 | 1.503 (3) | C77—H77 | 0.9300 |
N2—C8 | 1.457 (3) | C78—C79 | 1.408 (4) |
N2—C10 | 1.464 (3) | C78—H78 | 0.9300 |
C29—C30 | 1.358 (4) | C79—C70 | 1.366 (3) |
C29—C28 | 1.381 (5) | C79—H79 | 0.9300 |
C29—H29 | 0.9300 | C10—H10A | 0.9600 |
C21—H21 | 0.9300 | C10—H10B | 0.9600 |
C25—C24 | 1.363 (5) | C10—H10C | 0.9600 |
C30—C31—C26 | 118.2 (3) | H3A—C3—H3B | 108.0 |
C30—C31—C22 | 122.3 (3) | C91—C92—C93 | 122.0 (4) |
C26—C31—C22 | 119.5 (3) | C91—C92—H92 | 119.0 |
C22—C23—C24 | 121.6 (3) | C93—C92—H92 | 119.0 |
C22—C23—H23 | 119.2 | C29—C30—C31 | 121.3 (3) |
C24—C23—H23 | 119.2 | C29—C30—H30 | 119.3 |
C97—C96—C95 | 120.5 (5) | C31—C30—H30 | 119.3 |
C97—C96—H96 | 119.7 | C74—C75—C76 | 121.5 (3) |
C95—C96—H96 | 119.7 | C74—C75—H75 | 119.2 |
C25—C26—C31 | 119.2 (3) | C76—C75—H75 | 119.2 |
C25—C26—C27 | 122.6 (3) | C75—C74—C73 | 122.2 (3) |
C31—C26—C27 | 118.2 (3) | C75—C74—H74 | 118.9 |
O2—C1—C2 | 119.8 (2) | C73—C74—H74 | 118.9 |
O2—C1—C6 | 120.6 (2) | C73—C72—C80 | 120.4 (3) |
C2—C1—C6 | 119.6 (2) | C73—C72—C71 | 132.4 (3) |
C80—C76—C75 | 115.8 (3) | C80—C72—C71 | 107.1 (2) |
C80—C76—C77 | 116.0 (3) | O1—C71—C72 | 126.5 (2) |
C75—C76—C77 | 128.1 (3) | O1—C71—C7 | 124.7 (2) |
C72—C80—C76 | 122.4 (2) | C72—C71—C7 | 108.6 (2) |
C72—C80—C70 | 113.4 (2) | C93—C94—C95 | 122.9 (4) |
C76—C80—C70 | 124.0 (2) | C93—C94—H94 | 118.5 |
C23—C22—C31 | 119.0 (3) | C95—C94—H94 | 118.5 |
C23—C22—C21 | 120.7 (3) | C94—C93—C92 | 117.9 (4) |
C31—C22—C21 | 120.3 (3) | C94—C93—H93 | 121.1 |
C94—C95—C100 | 119.4 (4) | C92—C93—H93 | 121.1 |
C94—C95—C96 | 121.4 (4) | C91—C9—C8 | 115.1 (2) |
C100—C95—C96 | 119.2 (4) | C91—C9—C6 | 116.1 (2) |
C28—C27—C26 | 121.6 (3) | C8—C9—C6 | 105.51 (19) |
C28—C27—H27 | 119.2 | C91—C9—H9 | 106.5 |
C26—C27—H27 | 119.2 | C8—C9—H9 | 106.5 |
C99—C98—C97 | 120.7 (5) | C6—C9—H9 | 106.5 |
C99—C98—H98 | 119.7 | C25—C24—C23 | 120.0 (3) |
C97—C98—H98 | 119.7 | C25—C24—H24 | 120.0 |
C98—C99—C100 | 121.1 (4) | C23—C24—H24 | 120.0 |
C98—C99—H99 | 119.4 | C96—C97—C98 | 120.7 (5) |
C100—C99—H99 | 119.4 | C96—C97—H97 | 119.7 |
N2—C7—C70 | 110.0 (2) | C98—C97—H97 | 119.7 |
N2—C7—C71 | 111.06 (19) | C99—C100—C95 | 117.8 (3) |
C70—C7—C71 | 101.33 (19) | C99—C100—C91 | 123.7 (3) |
N2—C7—C6 | 103.41 (18) | C95—C100—C91 | 118.5 (3) |
C70—C7—C6 | 119.34 (19) | C5—C6—C1 | 109.17 (19) |
C71—C7—C6 | 111.84 (19) | C5—C6—C9 | 112.88 (19) |
C21—C2—C1 | 117.4 (2) | C1—C6—C9 | 109.24 (19) |
C21—C2—C3 | 122.5 (2) | C5—C6—C7 | 114.45 (19) |
C1—C2—C3 | 120.1 (2) | C1—C6—C7 | 108.13 (18) |
C8—N2—C10 | 113.4 (2) | C9—C6—C7 | 102.69 (18) |
C8—N2—C7 | 107.08 (19) | C72—C73—C74 | 117.7 (3) |
C10—N2—C7 | 116.2 (2) | C72—C73—H73 | 121.2 |
C30—C29—C28 | 121.3 (4) | C74—C73—H73 | 121.2 |
C30—C29—H29 | 119.3 | C92—C91—C100 | 119.3 (3) |
C28—C29—H29 | 119.3 | C92—C91—C9 | 120.8 (3) |
C2—C21—C22 | 125.5 (2) | C100—C91—C9 | 119.8 (3) |
C2—C21—H21 | 117.2 | C5—C4—C3 | 109.0 (2) |
C22—C21—H21 | 117.2 | C5—C4—H4A | 109.9 |
C24—C25—C26 | 120.7 (3) | C3—C4—H4A | 109.9 |
C24—C25—H25 | 119.7 | C5—C4—H4B | 109.9 |
C26—C25—H25 | 119.7 | C3—C4—H4B | 109.9 |
C27—C28—C29 | 119.4 (4) | H4A—C4—H4B | 108.3 |
C27—C28—H28 | 120.3 | C78—C77—C76 | 119.9 (3) |
C29—C28—H28 | 120.3 | C78—C77—H77 | 120.0 |
C4—C5—C6 | 113.8 (2) | C76—C77—H77 | 120.0 |
C4—C5—H5A | 108.8 | C77—C78—C79 | 123.0 (3) |
C6—C5—H5A | 108.8 | C77—C78—H78 | 118.5 |
C4—C5—H5B | 108.8 | C79—C78—H78 | 118.5 |
C6—C5—H5B | 108.8 | C70—C79—C78 | 119.0 (3) |
H5A—C5—H5B | 107.7 | C70—C79—H79 | 120.5 |
N2—C8—C9 | 102.9 (2) | C78—C79—H79 | 120.5 |
N2—C8—H8A | 111.2 | C79—C70—C80 | 117.8 (2) |
C9—C8—H8A | 111.2 | C79—C70—C7 | 132.3 (2) |
N2—C8—H8B | 111.2 | C80—C70—C7 | 109.5 (2) |
C9—C8—H8B | 111.2 | N2—C10—H10A | 109.5 |
H8A—C8—H8B | 109.1 | N2—C10—H10B | 109.5 |
C2—C3—C4 | 111.6 (2) | H10A—C10—H10B | 109.5 |
C2—C3—H3A | 109.3 | N2—C10—H10C | 109.5 |
C4—C3—H3A | 109.3 | H10A—C10—H10C | 109.5 |
C2—C3—H3B | 109.3 | H10B—C10—H10C | 109.5 |
C4—C3—H3B | 109.3 |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5B···O1 | 0.97 | 2.37 | 3.084 (3) | 130 |
C8—H8A···O1 | 0.97 | 2.51 | 3.078 (4) | 117 |
C9—H9···O2 | 0.98 | 2.26 | 2.803 (3) | 114 |
C21—H21···O2 | 0.93 | 2.42 | 2.750 (3) | 101 |
C73—H73···O1i | 0.93 | 2.50 | 3.231 (4) | 136 |
C4—H4A···Cg1 | 0.97 | 2.64 | 3.337 (3) | 129 |
C75—H75···Cg2ii | 0.93 | 2.74 | 3.646 (3) | 164 |
C78—H78···Cg3iii | 0.93 | 2.82 | 3.622 (4) | 145 |
C96—H96···Cg4iv | 0.93 | 2.96 | 3.742 (4) | 142 |
Symmetry codes: (i) −x, −y, −z+1; (ii) −x+1/2, y−1/2, −z+3/2; (iii) −x+1, −y, −z+2; (iv) x+1/2, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C42H33NO2 |
Mr | 583.69 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 12.4398 (8), 17.3501 (11), 14.4685 (9) |
β (°) | 90.728 (17) |
V (Å3) | 3122.5 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.22 × 0.18 × 0.16 |
Data collection | |
Diffractometer | Nonius MACH3 sealed tube |
Absorption correction | ψ scan (North et al., 1968) |
Tmin, Tmax | 0.943, 0.986 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6169, 5489, 3098 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.594 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.164, 1.02 |
No. of reflections | 5489 |
No. of parameters | 407 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.24 |
Computer programs: CAD-4 EXPRESS (Enraf–Nonius, 1994), XCAD4 (Harms & Wocadlo, 1995), SHELXTL/PC (Bruker, 2000), ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5B···O1 | 0.97 | 2.37 | 3.084 (3) | 130 |
C8—H8A···O1 | 0.97 | 2.51 | 3.078 (4) | 117 |
C9—H9···O2 | 0.98 | 2.26 | 2.803 (3) | 114 |
C21—H21···O2 | 0.93 | 2.42 | 2.750 (3) | 101 |
C73—H73···O1i | 0.93 | 2.50 | 3.231 (4) | 136 |
C4—H4A···Cg1 | 0.97 | 2.64 | 3.337 (3) | 129 |
C75—H75···Cg2ii | 0.93 | 2.74 | 3.646 (3) | 164 |
C78—H78···Cg3iii | 0.93 | 2.82 | 3.622 (4) | 145 |
C96—H96···Cg4iv | 0.93 | 2.96 | 3.742 (4) | 142 |
Symmetry codes: (i) −x, −y, −z+1; (ii) −x+1/2, y−1/2, −z+3/2; (iii) −x+1, −y, −z+2; (iv) x+1/2, −y+1/2, z−1/2. |
Acknowledgements
SA and SAB sincerely thank the Vice Chancellor and management of the Kalasalingam University, Anand Nagar, Krishnan Koil, for their support and encouragement.
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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.
1,3-Dipolar cycloaddition of azomethine ylides to alkenes affords pyrrolidines with high selectivities. Azomethine ylides are reactive and versatile 1,3-dipoles, which react readily with diverse dipolarophiles affording pyrrolizines, pyrrolidines and pyrazolidines (Fejes et al., 2001; De March et al., 2002). Pyrrolidine derivatives are widely used as organic catalysts and also serve as important structural units in biologically active molecules. Pyrrolidine derivatives, apart from displaying important biological activities (Pinna et al., 2002; Escolano & Jones, 2000), are present in natural products such as cephalotoxin, kainic acid, domoic acid and quinocarcin. The cycloaddition of azomethine ylides to dipolarophiles with exocyclic double bonds affords spiro-pyrrolidines (Raj & Raghunathan, 2001; Poornachandran & Raghunathan, 2006), which display important biological activities (Raj et al., 2003). Synthesis of spiro compounds has drawn considerable attention from chemists, in view of their very good antimycobacterial activity (Chande et al., 2005). Acenaphthenequinone is a versatile precursor for azomethine ylide cycloaddition as it reacts with various α-amino acids generating reactive 1,3-dipoles (Babu & Raghunathan, 2007).
In the title compound (I), Fig. 1, the six-membered cyclohexanone ring adopts a slightly distorted chair conformation [q2=0.283 (3) Å, π2=202.3 (5)° and q3=0.419 (3) Å; Cremer & Pople, 1975] and the five-membered pyrrolidine ring is in envelope conformation [q2=0.401 (3) Å and π2=351.5 (4)°; Cremer & Pople, 1975] (Fig. 1). The dihedral angles between the acenaphthene group and the planes through the naphthyl rings are observed to be 78.7 (1) and 33.2 (1)°. Planes through the naphthyl units themselves are oriented at a dihedral angle of 68.3 (1)°.
The molecular structure features four C—H···O and a C—H···π intramolecular interactions (Desiraju & Steiner, 1999) and the crystal packing is further stabilized by a C—H···O and three C—H···π intermolecular interactions (Fig 2; Table 1). The centroids in detailed in Table 1 are identified as follows: Cg1 - ring C7/C70–72/C80; Cg2 - ring C95–100; Cg3 - ring C26–31; Cg4 - ring C72–76/80.