organic compounds
6-Benzyl-2-[(triphenyl-λ5-phosphanylidene)amino]-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carbonitrile
aCollege of Chemistry and Life Science, China Three Gorges University, Yichang 443002, People's Republic of China, and bHubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang 443002, People's Republic of China
*Correspondence e-mail: chenhong3736@sina.com
In the title compound, C33H28N3PS, the P atom has a distorted tetrahedral PNC3 environment, formed by the N atom and three aryl rings. No intermolecular hydrogen-bonding interactions or π–π stacking interactions are present in the crystal structure.
Related literature
For general background to the potential use of iminophosphoranes in the synthesis of N-heterocyclic compounds by means of an aza-Wittig reaction, see: Bräse et al. (2005); Ding et al. (2005); Huang et al. (2009a,b); Liu et al. (2008); Palacios et al. (2007). For a related structure, see: Muller (2011).
Experimental
Crystal data
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Data collection: SMART (Bruker, 1997); cell SAINT (Bruker, 1997); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536811035082/aa2019sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811035082/aa2019Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811035082/aa2019Isup3.cml
A well stirred mixture of 1-benzylpiperidin-4-one (1.89 g, 10 mmol), sulfur (0.32 g, 10 mmol), malononitrile (0.66 g, 10 mmol) in EtOH (10 ml) was cooled in an ice bath and treated dropwise with Et3N (1.01 g, 10 mmol). When addition was complete, the reaction mixture was warmed to 333 K for 40 min and then stored in the cold place until crystallization occurred. The product, 2-amino-6-benzyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carbonitrile (2.29 g, yield 85%) was recrystallized from EtOH as colourless needles, M.p. 422–423 K.
To a mixture of 2-amino-6-benzyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carbonitrile (1.35 g, 5 mmol), PPh3 (3.94 g, 15 mmol) and C2Cl6 (3.55 g, 15 mmol) in anhydrous CH3CN (40 ml), were added dropwise Et3N (2.42 g, 24 mmol) at room temperature. The color of the reaction mixture quickly turned yellow. After stirring for 4–6 h, the solvent was removed under reduced pressure and the residue was recrystallized from EtOH to give iminophosphorane in light yellow crystals, 3.63 g (83%), M.p. 463 K; IR (KBr), cm-1 2190 (C≡N), 1490, 1346, 1100, 688; 1H NMR(CDCl3, 400 MHz) δ(p.p.m.): 7.78–7.23 (m, 20H, Ar—H), 3.62 (s, 2H, Ar—CH2), 3.24 (s, 2H, NCH2-thiophene), 2.75 (t, J = 8.7 Hz, 2H, NCH2CH2), 2.64 (t, J = 8.7 Hz, 2H, NCH2CH2); ESI-MS (m/z): 529.2 (M+), 530.2 ([M+H]+), 531.1 ([M+2H]+).
All H atoms were positioned geometrically [C—H = 0.93, 0.97 Å] and allowed to ride on their parent atoms, with Uiso(H) = 1.2Ueq(C). The rigid bond restraint "DELU, SIMU" instructions are used to restrain the anisotropic displacement parameters of C32—C33 and C34—C35 in the direction of the bond between them to be equal within a given standard uncertainty.
Over the past twenty years, the aza-Wittig reactions of iminophosphoranes have received increasing attention in view of their utility in the synthesis of N-heterocyclic compounds (Bräse et al., 2005; Palacios et al., 2007). Annelation of ring systems with N-heterocycles by means of an aza-Wittig reaction has been widely utilized because of the availability of functionalized iminophosphoranes. Consequently, the discovery of novel functionalized iminophosphoranes is important in this respect. Recently we have become interested in the synthesis of thienopyrimidinone, quinazolinones, and imidazolinones by an aza-Wittig reaction, with the aim of evaluating their fungicidal activities (Ding et al., 2005; Huang et al., 2009a,b; Liu et al., 2008). Meanwhile, the title compound can be used as a new precursor for obtaining of bioactive molecules with fluorescence properties. Herein we wish to report the efficient synthesis, structural characterization of the title compound.
The molecular structure of the title compound is shown in Fig.1. The molecule has a benzyl substituent at the N6 atom of the thienopyridine ring and an nitrile group substituent at C3. Within the molecule, the bond lengths and bond angles present no unusual features. In the fused thienopyridine ring system, the thiophene ring is essentially coplanar, with maximum deviation of -0.0052 and 0.0059 Å for C8 and C9, respectively. The dihedral angle between plane (N6, C5, C7) and plane (C4, C5, C7) is 61.69°. The thiophene ring forms dihedral angles of 84.67, 73.58, 2.35 and 65.29° with the adjacent 6-membered rings C12–C17, C18–C23, C24–C29 and C33–C38, respectively. Meanwhile, the P atom has a distorted PNC3 tetrahedral environment, formed by the N atom [P═N = 1.5782 (16) Å] and three aryl rings. The crystal packing is determined by No intermolecular hydrogen bonding interaction or π-π stacking interactions are present in the crystal structure.
For general background to the potential use of iminophosphoranes in the synthesis of N-heterocyclic compounds by means of an aza-Wittig reaction, see: Bräse et al. (2005); Ding et al. (2005); Huang et al. (2009a,b); Liu et al. (2008); Palacios et al. (2007). For a related structure, see: Muller (2011).
Data collection: SMART (Bruker, 1997); cell
SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C33H28N3PS | F(000) = 1112 |
Mr = 529.61 | Dx = 1.248 Mg m−3 |
Monoclinic, P21/c | Melting point: 463 K |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 8.926 (4) Å | Cell parameters from 6648 reflections |
b = 27.537 (12) Å | θ = 2.7–27.5° |
c = 11.719 (5) Å | µ = 0.20 mm−1 |
β = 101.970 (4)° | T = 296 K |
V = 2818 (2) Å3 | Block, yellow |
Z = 4 | 0.23 × 0.15 × 0.14 mm |
Bruker SMART CCD diffractometer | 6415 independent reflections |
Radiation source: fine-focus sealed tube | 5506 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.078 |
CCD Profile fitting scans | θmax = 27.5°, θmin = 2.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −11→11 |
Tmin = 0.965, Tmax = 0.973 | k = −35→35 |
25582 measured reflections | l = −15→15 |
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)] = 0.054 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.145 | H-atom parameters constrained |
S = 1.09 | w = 1/[σ2(Fo2) + (0.0593P)2 + 0.6222P] where P = (Fo2 + 2Fc2)/3 |
6415 reflections | (Δ/σ)max = 0.001 |
343 parameters | Δρmax = 0.35 e Å−3 |
14 restraints | Δρmin = −0.40 e Å−3 |
C33H28N3PS | V = 2818 (2) Å3 |
Mr = 529.61 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 8.926 (4) Å | µ = 0.20 mm−1 |
b = 27.537 (12) Å | T = 296 K |
c = 11.719 (5) Å | 0.23 × 0.15 × 0.14 mm |
β = 101.970 (4)° |
Bruker SMART CCD diffractometer | 6415 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 5506 reflections with I > 2σ(I) |
Tmin = 0.965, Tmax = 0.973 | Rint = 0.078 |
25582 measured reflections |
R[F2 > 2σ(F2)] = 0.054 | 14 restraints |
wR(F2) = 0.145 | H-atom parameters constrained |
S = 1.09 | Δρmax = 0.35 e Å−3 |
6415 reflections | Δρmin = −0.40 e Å−3 |
343 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 | ||
S1 | 0.39018 (6) | 0.490734 (17) | 0.21538 (4) | 0.04728 (14) | |
P11 | 0.32811 (5) | 0.375360 (16) | 0.10480 (4) | 0.03695 (13) | |
C2 | 0.29442 (19) | 0.44156 (6) | 0.26335 (15) | 0.0385 (4) | |
N10 | 0.26996 (18) | 0.39751 (5) | 0.21202 (13) | 0.0430 (3) | |
C24 | 0.2666 (2) | 0.31289 (7) | 0.10029 (15) | 0.0423 (4) | |
C3 | 0.2455 (2) | 0.45503 (7) | 0.36345 (15) | 0.0409 (4) | |
C18 | 0.2416 (2) | 0.40262 (7) | −0.03330 (16) | 0.0433 (4) | |
C9 | 0.2855 (2) | 0.50376 (7) | 0.40134 (15) | 0.0431 (4) | |
C4 | 0.2442 (3) | 0.52902 (8) | 0.50410 (17) | 0.0533 (5) | |
H4A | 0.2822 | 0.5103 | 0.5742 | 0.064* | |
H4B | 0.1336 | 0.5310 | 0.4932 | 0.064* | |
C12 | 0.5327 (2) | 0.37745 (7) | 0.11612 (16) | 0.0431 (4) | |
C8 | 0.3613 (2) | 0.52716 (7) | 0.32988 (17) | 0.0467 (4) | |
C30 | 0.1641 (2) | 0.42171 (7) | 0.42103 (16) | 0.0482 (4) | |
C19 | 0.1165 (2) | 0.43269 (8) | −0.03768 (18) | 0.0526 (5) | |
H19 | 0.0819 | 0.4395 | 0.0302 | 0.063* | |
N6 | 0.3003 (2) | 0.60358 (7) | 0.40430 (17) | 0.0624 (5) | |
C7 | 0.4035 (3) | 0.57978 (8) | 0.3403 (2) | 0.0613 (6) | |
H7A | 0.5089 | 0.5835 | 0.3818 | 0.074* | |
H7B | 0.3932 | 0.5941 | 0.2635 | 0.074* | |
C29 | 0.1868 (3) | 0.29638 (8) | 0.18196 (19) | 0.0559 (5) | |
H29 | 0.1703 | 0.3171 | 0.2409 | 0.067* | |
N31 | 0.0979 (3) | 0.39483 (8) | 0.46615 (18) | 0.0729 (6) | |
C13 | 0.6239 (2) | 0.34442 (9) | 0.18892 (19) | 0.0573 (5) | |
H13 | 0.5789 | 0.3190 | 0.2221 | 0.069* | |
C5 | 0.3120 (3) | 0.58015 (9) | 0.5189 (2) | 0.0666 (6) | |
H5A | 0.2575 | 0.5994 | 0.5665 | 0.080* | |
H5B | 0.4187 | 0.5784 | 0.5586 | 0.080* | |
C33 | 0.3007 (3) | 0.67981 (8) | 0.2956 (2) | 0.0681 (6) | |
C27 | 0.1534 (3) | 0.21872 (9) | 0.0894 (3) | 0.0765 (8) | |
H27 | 0.1140 | 0.1874 | 0.0849 | 0.092* | |
C23 | 0.2916 (3) | 0.39258 (10) | −0.13584 (18) | 0.0643 (6) | |
H23 | 0.3761 | 0.3726 | −0.1341 | 0.077* | |
C25 | 0.2919 (3) | 0.28159 (8) | 0.0134 (2) | 0.0628 (6) | |
H25 | 0.3471 | 0.2920 | −0.0413 | 0.075* | |
C26 | 0.2338 (4) | 0.23443 (9) | 0.0087 (2) | 0.0775 (8) | |
H26 | 0.2499 | 0.2134 | −0.0498 | 0.093* | |
C17 | 0.6018 (3) | 0.41492 (9) | 0.0675 (2) | 0.0630 (6) | |
H17 | 0.5420 | 0.4372 | 0.0184 | 0.076* | |
C16 | 0.7602 (3) | 0.41936 (11) | 0.0916 (3) | 0.0805 (8) | |
H16 | 0.8063 | 0.4446 | 0.0587 | 0.097* | |
C36 | 0.2460 (5) | 0.72224 (11) | 0.0748 (3) | 0.0943 (9) | |
H36 | 0.2282 | 0.7364 | 0.0012 | 0.113* | |
C15 | 0.8486 (3) | 0.38665 (12) | 0.1639 (3) | 0.0797 (8) | |
H15 | 0.9546 | 0.3898 | 0.1803 | 0.096* | |
C14 | 0.7818 (3) | 0.34928 (11) | 0.2122 (2) | 0.0748 (7) | |
H14 | 0.8427 | 0.3271 | 0.2607 | 0.090* | |
C28 | 0.1311 (3) | 0.24919 (9) | 0.1766 (3) | 0.0753 (7) | |
H28 | 0.0786 | 0.2383 | 0.2324 | 0.090* | |
C22 | 0.2153 (3) | 0.41234 (12) | −0.2402 (2) | 0.0827 (9) | |
H22 | 0.2480 | 0.4053 | −0.3087 | 0.099* | |
C20 | 0.0417 (3) | 0.45287 (10) | −0.1435 (2) | 0.0723 (7) | |
H20 | −0.0416 | 0.4734 | −0.1462 | 0.087* | |
C21 | 0.0922 (3) | 0.44216 (12) | −0.2433 (2) | 0.0802 (8) | |
H21 | 0.0420 | 0.4553 | −0.3140 | 0.096* | |
C35 | 0.3784 (4) | 0.72998 (12) | 0.1508 (4) | 0.0936 (10) | |
H35 | 0.4520 | 0.7499 | 0.1292 | 0.112* | |
C32 | 0.3298 (4) | 0.65581 (9) | 0.4136 (3) | 0.0824 (8) | |
H32A | 0.4353 | 0.6613 | 0.4526 | 0.099* | |
H32B | 0.2643 | 0.6704 | 0.4607 | 0.099* | |
C38 | 0.1630 (3) | 0.67270 (10) | 0.2154 (3) | 0.0808 (8) | |
H38 | 0.0867 | 0.6536 | 0.2358 | 0.097* | |
C34 | 0.4080 (3) | 0.70931 (11) | 0.2599 (3) | 0.0888 (9) | |
H34 | 0.5013 | 0.7152 | 0.3103 | 0.107* | |
C37 | 0.1393 (4) | 0.69361 (12) | 0.1064 (3) | 0.0931 (10) | |
H37 | 0.0478 | 0.6879 | 0.0537 | 0.112* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0532 (3) | 0.0445 (3) | 0.0489 (3) | −0.00073 (19) | 0.0216 (2) | −0.00419 (18) |
P11 | 0.0375 (2) | 0.0411 (2) | 0.0327 (2) | 0.00167 (17) | 0.00837 (17) | −0.00069 (16) |
C2 | 0.0377 (8) | 0.0432 (9) | 0.0346 (8) | 0.0036 (7) | 0.0076 (7) | 0.0006 (6) |
N10 | 0.0485 (8) | 0.0442 (8) | 0.0386 (8) | −0.0012 (6) | 0.0143 (7) | −0.0042 (6) |
C24 | 0.0422 (9) | 0.0443 (9) | 0.0374 (9) | 0.0003 (7) | 0.0014 (7) | −0.0019 (7) |
C3 | 0.0432 (9) | 0.0476 (9) | 0.0314 (8) | 0.0064 (7) | 0.0065 (7) | 0.0001 (7) |
C18 | 0.0415 (9) | 0.0501 (10) | 0.0376 (9) | −0.0001 (7) | 0.0070 (7) | 0.0037 (7) |
C9 | 0.0423 (9) | 0.0505 (10) | 0.0348 (9) | 0.0091 (8) | 0.0040 (7) | −0.0045 (7) |
C4 | 0.0608 (12) | 0.0609 (12) | 0.0356 (9) | 0.0127 (9) | 0.0040 (9) | −0.0081 (8) |
C12 | 0.0400 (9) | 0.0491 (10) | 0.0406 (9) | 0.0035 (7) | 0.0094 (7) | −0.0051 (7) |
C8 | 0.0450 (9) | 0.0462 (9) | 0.0492 (10) | 0.0052 (8) | 0.0104 (8) | −0.0090 (8) |
C30 | 0.0582 (11) | 0.0536 (10) | 0.0339 (9) | 0.0080 (9) | 0.0119 (8) | 0.0017 (7) |
C19 | 0.0443 (10) | 0.0608 (12) | 0.0512 (11) | 0.0049 (9) | 0.0064 (9) | 0.0052 (9) |
N6 | 0.0780 (13) | 0.0471 (9) | 0.0629 (11) | 0.0041 (9) | 0.0170 (10) | −0.0168 (8) |
C7 | 0.0602 (12) | 0.0494 (11) | 0.0773 (15) | −0.0018 (10) | 0.0213 (11) | −0.0146 (10) |
C29 | 0.0691 (13) | 0.0484 (11) | 0.0515 (11) | −0.0074 (9) | 0.0158 (10) | 0.0022 (8) |
N31 | 0.0974 (16) | 0.0704 (13) | 0.0583 (12) | −0.0061 (11) | 0.0330 (12) | 0.0098 (9) |
C13 | 0.0485 (11) | 0.0683 (13) | 0.0529 (12) | 0.0064 (10) | 0.0056 (9) | 0.0076 (10) |
C5 | 0.0779 (15) | 0.0678 (14) | 0.0499 (12) | 0.0049 (12) | 0.0036 (11) | −0.0212 (10) |
C33 | 0.0764 (15) | 0.0455 (11) | 0.0805 (16) | 0.0092 (10) | 0.0119 (13) | −0.0187 (10) |
C27 | 0.0892 (18) | 0.0464 (12) | 0.0819 (18) | −0.0119 (12) | −0.0100 (15) | 0.0005 (11) |
C23 | 0.0621 (13) | 0.0937 (17) | 0.0391 (11) | 0.0135 (12) | 0.0152 (10) | 0.0084 (10) |
C25 | 0.0818 (15) | 0.0564 (12) | 0.0504 (12) | 0.0022 (11) | 0.0143 (11) | −0.0109 (9) |
C26 | 0.103 (2) | 0.0541 (13) | 0.0662 (16) | 0.0051 (13) | −0.0043 (14) | −0.0223 (11) |
C17 | 0.0470 (11) | 0.0652 (13) | 0.0806 (16) | 0.0025 (10) | 0.0220 (11) | 0.0123 (11) |
C16 | 0.0498 (13) | 0.0850 (18) | 0.112 (2) | −0.0080 (12) | 0.0288 (14) | 0.0093 (16) |
C36 | 0.119 (3) | 0.0695 (18) | 0.095 (2) | 0.0008 (18) | 0.025 (2) | −0.0063 (15) |
C15 | 0.0403 (11) | 0.114 (2) | 0.0847 (19) | −0.0037 (13) | 0.0122 (12) | −0.0092 (16) |
C14 | 0.0482 (12) | 0.105 (2) | 0.0668 (16) | 0.0173 (13) | 0.0017 (11) | 0.0068 (14) |
C28 | 0.0913 (18) | 0.0535 (13) | 0.0814 (17) | −0.0172 (12) | 0.0187 (14) | 0.0079 (12) |
C22 | 0.0768 (17) | 0.132 (3) | 0.0392 (12) | −0.0004 (17) | 0.0118 (12) | 0.0154 (13) |
C20 | 0.0526 (12) | 0.0819 (16) | 0.0743 (17) | 0.0134 (12) | −0.0057 (12) | 0.0194 (13) |
C21 | 0.0652 (15) | 0.113 (2) | 0.0549 (15) | −0.0024 (15) | −0.0054 (12) | 0.0301 (14) |
C35 | 0.105 (2) | 0.0723 (18) | 0.115 (3) | −0.0176 (17) | 0.048 (2) | −0.0176 (17) |
C32 | 0.1019 (19) | 0.0533 (13) | 0.0851 (17) | 0.0030 (13) | 0.0036 (15) | −0.0268 (11) |
C38 | 0.0603 (14) | 0.0636 (15) | 0.116 (2) | −0.0038 (12) | 0.0126 (15) | 0.0062 (15) |
C34 | 0.0697 (16) | 0.0736 (17) | 0.117 (3) | −0.0124 (14) | 0.0048 (17) | −0.0369 (17) |
C37 | 0.086 (2) | 0.0790 (19) | 0.101 (2) | 0.0032 (16) | −0.0105 (18) | 0.0071 (17) |
S1—C8 | 1.737 (2) | C33—C34 | 1.385 (4) |
S1—C2 | 1.7550 (19) | C33—C38 | 1.397 (4) |
P11—N10 | 1.5782 (16) | C33—C32 | 1.506 (4) |
P11—C24 | 1.803 (2) | C27—C28 | 1.368 (4) |
P11—C12 | 1.804 (2) | C27—C26 | 1.371 (4) |
P11—C18 | 1.8057 (19) | C27—H27 | 0.9300 |
C2—N10 | 1.351 (2) | C23—C22 | 1.382 (3) |
C2—C3 | 1.385 (2) | C23—H23 | 0.9300 |
C24—C29 | 1.383 (3) | C25—C26 | 1.395 (3) |
C24—C25 | 1.388 (3) | C25—H25 | 0.9300 |
C3—C30 | 1.424 (3) | C26—H26 | 0.9300 |
C3—C9 | 1.435 (3) | C17—C16 | 1.389 (3) |
C18—C19 | 1.383 (3) | C17—H17 | 0.9300 |
C18—C23 | 1.394 (3) | C16—C15 | 1.369 (4) |
C9—C8 | 1.345 (3) | C16—H16 | 0.9300 |
C9—C4 | 1.501 (2) | C36—C35 | 1.341 (5) |
C4—C5 | 1.528 (3) | C36—C37 | 1.347 (5) |
C4—H4A | 0.9700 | C36—H36 | 0.9300 |
C4—H4B | 0.9700 | C15—C14 | 1.369 (4) |
C12—C17 | 1.384 (3) | C15—H15 | 0.9300 |
C12—C13 | 1.389 (3) | C14—H14 | 0.9300 |
C8—C7 | 1.496 (3) | C28—H28 | 0.9300 |
C30—N31 | 1.143 (3) | C22—C21 | 1.367 (4) |
C19—C20 | 1.396 (3) | C22—H22 | 0.9300 |
C19—H19 | 0.9300 | C20—C21 | 1.370 (4) |
N6—C7 | 1.458 (3) | C20—H20 | 0.9300 |
N6—C32 | 1.462 (3) | C21—H21 | 0.9300 |
N6—C5 | 1.474 (3) | C35—C34 | 1.373 (5) |
C7—H7A | 0.9700 | C35—H35 | 0.9300 |
C7—H7B | 0.9700 | C32—H32A | 0.9700 |
C29—C28 | 1.388 (3) | C32—H32B | 0.9700 |
C29—H29 | 0.9300 | C38—C37 | 1.376 (4) |
C13—C14 | 1.386 (3) | C38—H38 | 0.9300 |
C13—H13 | 0.9300 | C34—H34 | 0.9300 |
C5—H5A | 0.9700 | C37—H37 | 0.9300 |
C5—H5B | 0.9700 | ||
C8—S1—C2 | 92.17 (9) | C34—C33—C38 | 116.4 (3) |
N10—P11—C24 | 104.09 (8) | C34—C33—C32 | 122.4 (3) |
N10—P11—C12 | 115.09 (8) | C38—C33—C32 | 121.1 (3) |
C24—P11—C12 | 109.28 (8) | C28—C27—C26 | 120.0 (2) |
N10—P11—C18 | 113.76 (9) | C28—C27—H27 | 120.0 |
C24—P11—C18 | 107.42 (9) | C26—C27—H27 | 120.0 |
C12—P11—C18 | 106.90 (9) | C22—C23—C18 | 119.8 (2) |
N10—C2—C3 | 124.56 (16) | C22—C23—H23 | 120.1 |
N10—C2—S1 | 126.48 (13) | C18—C23—H23 | 120.1 |
C3—C2—S1 | 108.96 (13) | C24—C25—C26 | 119.4 (2) |
C2—N10—P11 | 130.67 (13) | C24—C25—H25 | 120.3 |
C29—C24—C25 | 119.31 (19) | C26—C25—H25 | 120.3 |
C29—C24—P11 | 119.39 (15) | C27—C26—C25 | 120.7 (2) |
C25—C24—P11 | 121.24 (16) | C27—C26—H26 | 119.7 |
C2—C3—C30 | 120.69 (17) | C25—C26—H26 | 119.7 |
C2—C3—C9 | 114.23 (16) | C12—C17—C16 | 120.2 (2) |
C30—C3—C9 | 125.07 (16) | C12—C17—H17 | 119.9 |
C19—C18—C23 | 119.18 (18) | C16—C17—H17 | 119.9 |
C19—C18—P11 | 118.30 (15) | C15—C16—C17 | 120.0 (3) |
C23—C18—P11 | 122.44 (16) | C15—C16—H16 | 120.0 |
C8—C9—C3 | 112.36 (16) | C17—C16—H16 | 120.0 |
C8—C9—C4 | 121.09 (18) | C35—C36—C37 | 119.1 (3) |
C3—C9—C4 | 126.47 (17) | C35—C36—H36 | 120.5 |
C9—C4—C5 | 111.13 (18) | C37—C36—H36 | 120.5 |
C9—C4—H4A | 109.4 | C16—C15—C14 | 120.4 (2) |
C5—C4—H4A | 109.4 | C16—C15—H15 | 119.8 |
C9—C4—H4B | 109.4 | C14—C15—H15 | 119.8 |
C5—C4—H4B | 109.4 | C15—C14—C13 | 120.2 (2) |
H4A—C4—H4B | 108.0 | C15—C14—H14 | 119.9 |
C17—C12—C13 | 119.13 (19) | C13—C14—H14 | 119.9 |
C17—C12—P11 | 121.62 (15) | C27—C28—C29 | 120.1 (3) |
C13—C12—P11 | 118.64 (15) | C27—C28—H28 | 120.0 |
C9—C8—C7 | 124.33 (18) | C29—C28—H28 | 120.0 |
C9—C8—S1 | 112.26 (15) | C21—C22—C23 | 120.4 (2) |
C7—C8—S1 | 123.18 (16) | C21—C22—H22 | 119.8 |
N31—C30—C3 | 179.3 (2) | C23—C22—H22 | 119.8 |
C18—C19—C20 | 120.3 (2) | C21—C20—C19 | 119.4 (2) |
C18—C19—H19 | 119.8 | C21—C20—H20 | 120.3 |
C20—C19—H19 | 119.8 | C19—C20—H20 | 120.3 |
C7—N6—C32 | 110.9 (2) | C22—C21—C20 | 120.8 (2) |
C7—N6—C5 | 109.80 (19) | C22—C21—H21 | 119.6 |
C32—N6—C5 | 112.64 (19) | C20—C21—H21 | 119.6 |
N6—C7—C8 | 107.58 (18) | C36—C35—C34 | 121.7 (3) |
N6—C7—H7A | 110.2 | C36—C35—H35 | 119.1 |
C8—C7—H7A | 110.2 | C34—C35—H35 | 119.1 |
N6—C7—H7B | 110.2 | N6—C32—C33 | 111.7 (2) |
C8—C7—H7B | 110.2 | N6—C32—H32A | 109.3 |
H7A—C7—H7B | 108.5 | C33—C32—H32A | 109.3 |
C24—C29—C28 | 120.5 (2) | N6—C32—H32B | 109.3 |
C24—C29—H29 | 119.8 | C33—C32—H32B | 109.3 |
C28—C29—H29 | 119.8 | H32A—C32—H32B | 107.9 |
C14—C13—C12 | 120.0 (2) | C37—C38—C33 | 120.7 (3) |
C14—C13—H13 | 120.0 | C37—C38—H38 | 119.7 |
C12—C13—H13 | 120.0 | C33—C38—H38 | 119.7 |
N6—C5—C4 | 110.37 (17) | C35—C34—C33 | 120.8 (3) |
N6—C5—H5A | 109.6 | C35—C34—H34 | 119.6 |
C4—C5—H5A | 109.6 | C33—C34—H34 | 119.6 |
N6—C5—H5B | 109.6 | C36—C37—C38 | 121.2 (3) |
C4—C5—H5B | 109.6 | C36—C37—H37 | 119.4 |
H5A—C5—H5B | 108.1 | C38—C37—H37 | 119.4 |
C8—S1—C2—N10 | 179.48 (17) | P11—C18—C19—C20 | −177.18 (18) |
C8—S1—C2—C3 | −0.05 (14) | C32—N6—C7—C8 | −177.4 (2) |
C3—C2—N10—P11 | −174.79 (14) | C5—N6—C7—C8 | 57.4 (2) |
S1—C2—N10—P11 | 5.7 (3) | C9—C8—C7—N6 | −22.4 (3) |
C24—P11—N10—C2 | 173.39 (17) | S1—C8—C7—N6 | 151.68 (16) |
C12—P11—N10—C2 | 53.8 (2) | C25—C24—C29—C28 | −0.6 (3) |
C18—P11—N10—C2 | −70.01 (19) | P11—C24—C29—C28 | 176.58 (19) |
N10—P11—C24—C29 | 0.25 (18) | C17—C12—C13—C14 | 0.1 (3) |
C12—P11—C24—C29 | 123.69 (16) | P11—C12—C13—C14 | −171.05 (19) |
C18—P11—C24—C29 | −120.68 (16) | C7—N6—C5—C4 | −69.2 (2) |
N10—P11—C24—C25 | 177.42 (17) | C32—N6—C5—C4 | 166.6 (2) |
C12—P11—C24—C25 | −59.14 (19) | C9—C4—C5—N6 | 39.9 (3) |
C18—P11—C24—C25 | 56.49 (19) | C19—C18—C23—C22 | −0.5 (4) |
N10—C2—C3—C30 | 0.5 (3) | P11—C18—C23—C22 | 176.3 (2) |
S1—C2—C3—C30 | −179.95 (14) | C29—C24—C25—C26 | 1.3 (3) |
N10—C2—C3—C9 | 179.89 (16) | P11—C24—C25—C26 | −175.92 (18) |
S1—C2—C3—C9 | −0.57 (19) | C28—C27—C26—C25 | −0.9 (4) |
N10—P11—C18—C19 | −11.62 (19) | C24—C25—C26—C27 | −0.5 (4) |
C24—P11—C18—C19 | 103.01 (17) | C13—C12—C17—C16 | −0.2 (4) |
C12—P11—C18—C19 | −139.79 (16) | P11—C12—C17—C16 | 170.7 (2) |
N10—P11—C18—C23 | 171.61 (18) | C12—C17—C16—C15 | −0.1 (4) |
C24—P11—C18—C23 | −73.8 (2) | C17—C16—C15—C14 | 0.4 (5) |
C12—P11—C18—C23 | 43.4 (2) | C16—C15—C14—C13 | −0.5 (5) |
C2—C3—C9—C8 | 1.1 (2) | C12—C13—C14—C15 | 0.2 (4) |
C30—C3—C9—C8 | −179.54 (17) | C26—C27—C28—C29 | 1.5 (4) |
C2—C3—C9—C4 | 177.94 (17) | C24—C29—C28—C27 | −0.8 (4) |
C30—C3—C9—C4 | −2.7 (3) | C18—C23—C22—C21 | 0.8 (4) |
C8—C9—C4—C5 | −5.3 (3) | C18—C19—C20—C21 | 0.8 (4) |
C3—C9—C4—C5 | 178.09 (18) | C23—C22—C21—C20 | −0.2 (5) |
N10—P11—C12—C17 | −94.91 (19) | C19—C20—C21—C22 | −0.6 (4) |
C24—P11—C12—C17 | 148.44 (18) | C37—C36—C35—C34 | 0.3 (5) |
C18—P11—C12—C17 | 32.5 (2) | C7—N6—C32—C33 | 62.6 (3) |
N10—P11—C12—C13 | 76.04 (18) | C5—N6—C32—C33 | −173.9 (2) |
C24—P11—C12—C13 | −40.61 (18) | C34—C33—C32—N6 | −127.8 (3) |
C18—P11—C12—C13 | −156.57 (16) | C38—C33—C32—N6 | 51.2 (3) |
C3—C9—C8—C7 | 173.52 (19) | C34—C33—C38—C37 | 1.1 (4) |
C4—C9—C8—C7 | −3.5 (3) | C32—C33—C38—C37 | −178.0 (3) |
C3—C9—C8—S1 | −1.1 (2) | C36—C35—C34—C33 | −0.5 (5) |
C4—C9—C8—S1 | −178.14 (14) | C38—C33—C34—C35 | −0.2 (4) |
C2—S1—C8—C9 | 0.68 (15) | C32—C33—C34—C35 | 179.0 (3) |
C2—S1—C8—C7 | −174.02 (18) | C35—C36—C37—C38 | 0.7 (5) |
C23—C18—C19—C20 | −0.3 (3) | C33—C38—C37—C36 | −1.4 (5) |
Experimental details
Crystal data | |
Chemical formula | C33H28N3PS |
Mr | 529.61 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 8.926 (4), 27.537 (12), 11.719 (5) |
β (°) | 101.970 (4) |
V (Å3) | 2818 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.20 |
Crystal size (mm) | 0.23 × 0.15 × 0.14 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.965, 0.973 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 25582, 6415, 5506 |
Rint | 0.078 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.054, 0.145, 1.09 |
No. of reflections | 6415 |
No. of parameters | 343 |
No. of restraints | 14 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.35, −0.40 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SHELXTL (Sheldrick, 2008).
Acknowledgements
This work was supported financially by the Science Foundation of Hubei Province Education Department, China (project No. D20091301) and the Excellent Fund for Scientific Research and Special Projects in China Three Gorges University, China (project No. KJ2009B004).
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.
Over the past twenty years, the aza-Wittig reactions of iminophosphoranes have received increasing attention in view of their utility in the synthesis of N-heterocyclic compounds (Bräse et al., 2005; Palacios et al., 2007). Annelation of ring systems with N-heterocycles by means of an aza-Wittig reaction has been widely utilized because of the availability of functionalized iminophosphoranes. Consequently, the discovery of novel functionalized iminophosphoranes is important in this respect. Recently we have become interested in the synthesis of thienopyrimidinone, quinazolinones, and imidazolinones by an aza-Wittig reaction, with the aim of evaluating their fungicidal activities (Ding et al., 2005; Huang et al., 2009a,b; Liu et al., 2008). Meanwhile, the title compound can be used as a new precursor for obtaining of bioactive molecules with fluorescence properties. Herein we wish to report the efficient synthesis, structural characterization of the title compound.
The molecular structure of the title compound is shown in Fig.1. The molecule has a benzyl substituent at the N6 atom of the thienopyridine ring and an nitrile group substituent at C3. Within the molecule, the bond lengths and bond angles present no unusual features. In the fused thienopyridine ring system, the thiophene ring is essentially coplanar, with maximum deviation of -0.0052 and 0.0059 Å for C8 and C9, respectively. The dihedral angle between plane (N6, C5, C7) and plane (C4, C5, C7) is 61.69°. The thiophene ring forms dihedral angles of 84.67, 73.58, 2.35 and 65.29° with the adjacent 6-membered rings C12–C17, C18–C23, C24–C29 and C33–C38, respectively. Meanwhile, the P atom has a distorted PNC3 tetrahedral environment, formed by the N atom [P═N = 1.5782 (16) Å] and three aryl rings. The crystal packing is determined by van der Waals forces. No intermolecular hydrogen bonding interaction or π-π stacking interactions are present in the crystal structure.