organic compounds
2,3,4,6,7,8,9,10-Octahydropyrimido[1,2-a]azepin-1-ium 2-cyano-1-(2,6-dimethylanilino)-2-(phenylsulfonyl)ethenethiolate
aSTC Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 Lenina ave., Kharkiv 61001, Ukraine, and bNational University of Pharmacy, 4 Blyukhera ave., Kharkiv 61002, Ukraine
*Correspondence e-mail: sveta@xray.isc.kharkov.com
In the title compound, C9H17N2+·C17H15N2O2S2−, the Csp2—N bonds in the tetrahydropyrimidine ring of the cation are delocalized. The negative charge is localized on the S atom of the thione group. Cations and anions are linked by N—H⋯S intermolecular hydrogen bonds.
Related literature
For related literature, see: Bürgi & Dunitz (1994); Fadda et al. (2000); Dorwald (2000); Lindeman et al. (2003); Perez et al. (2004); Zefirov et al. (1990).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: CrysAlis CCD (Oxford Diffraction, 2007); cell CrysAlis RED (Oxford Diffraction, 2007); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXTL-Plus (Sheldrick, 1998); program(s) used to refine structure: SHELXTL-Plus; molecular graphics: XP (Siemens, 1998); software used to prepare material for publication: SHELXTL-Plus.
Supporting information
https://doi.org/10.1107/S1600536807065518/av2006sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807065518/av2006Isup2.hkl
The reaction was carried out in the methanolic solution of 1,8-diaza-bicyclo[5,4,0]undec-7-ene (1,66 mmol) with heating (about 50 °C), in which arylsulfonylacetonitrile (1,66 mmol) and arylisothiocyanate (1,66 mmol) were dissolved. The solution was mixed during 1.5 h. At the end of synthesis the reacting mixture was cooled and salt was crystallized from a solution.
All hydrogen atoms were located from electron density difference maps and included in the
in the riding model approximation with Uiso constrained to be 1.5 times Ueq of the for the methyl groups and 1.2 times Ueq of the for the other atoms.The hydrogen atoms which take part in formation of hydrogen bonds were refined in isotropic approximation.The S,N-acetaleketenes are very efficient reagents for synthesis of the sulfur-containing heterocycles. However, synthesis and isolation of these compounds from the reaction mixture are difficult enough (Fadda, Refat Hala & Zaki, 2000; Florencio, 2000). Therefore information about α-nitryl-α-phenylsulfonylketene S,N-(2,6-dimethylphenyl)-acetal with 1,8-Diaza-bicyclo[5,4,0]undec-7-ene. The N3—C23 and N4—C23 bonds of the cation have very close lengths (Table 1) which significantly differ from their mean values 1.355 Å and 1.279 Å (Bürgi & Dunitz, 1994), respectively. Similar deformation of these bonds was observed earlier in the protonated octahydropyrimidoazepines (Perez et al., 2004; Lindeman et al., 2003). The azepine ring of the cation adopts a chair conformation. The C18, C19, C21 and C22 atoms lie in the plane within 0.01 Å. Deviations of the C20, N3, C23 atoms from this plane are 0.65 Å, -1.08 Å and -1.03 Å, respectively. The tetrahydropyrimidine ring adopts conformation which is an intermediate between sofa and half-chair (the puckering parameters (Zefirov et al., 1990) are S=0.68, θ=42.0 °, ψ=19.8 °). Deviations of the C25 and C26 atoms from the mean-square plane of the remaining atoms of the ring are -0.76 Å and -0.23 Å, respectively. The value of the C2—S2 bond in anion is shorter than the mean value for Csp2—S bond (1.751 Å) and is longer as compared with Csp2?S bond (1.671 Å). This indicates that the negative charge is localized on the S2 atom. The C2, C1, N1, S1, S2 and C11 atoms of organic anion lie in the plane within 0.02 Å. The aromatic ring of the phenylsulfoxide substituent is orthogonal to the C1—C2 bond and is turned relatively the C1—S1 bond (the C12—S1—C1—C2 and C1—S1—C12—C17 torsion angles are 105.4 (1) ° and 112.7 (1)°, respectively). Formation of the N1—H1N···O2 intramolecular hydrogen bond (H···O 1.99 Å, N—H···O 144 °) causes almost coplanar arrangement of the S1—O2 and C1—C2 bonds (the O2—S1—C1—C2 torsion angle is -9.3 (2) °) and it leads to some elongation of these bonds as compared to mean values 1.436 Å for the S=O and 1.331 Å for the C=C bonds, and shortening of the C1—S1 bond (mean value is 1.779 Å). In the crystal phase the cations and anions are bonded by the N4—H4n···S2i intermolecular hydrogen bond (i) x, 1 + y, z; H···S 2.41 Å, N—H···S 160°).
of these compounds is very limited. In this paper we report the molecular and of the salt of theFor related literature, see: Bürgi & Dunitz (1994); Fadda et al. (2000); Florencio (2000); Lindeman et al. (2003); Perez et al. (2004); Zefirov et al. (1990).
Data collection: CrysAlis CCD (Oxford Diffraction, 2007); cell
CrysAlis RED (Oxford Diffraction, 2007); data reduction: CrysAlis RED (Oxford Diffraction, 2007); program(s) used to solve structure: SHELXTL (Sheldrick, 1998); program(s) used to refine structure: SHELXTL (Sheldrick, 1998); molecular graphics: XP (Siemens, 1998); software used to prepare material for publication: SHELXTL (Sheldrick, 1998).Fig. 1. View of the title compound with atomic numbering scheme. All atoms are shown with displacement ellipsoids drawn at the 50% probability level. |
C9H17N2+·C17H15N2O2S2− | Z = 2 |
Mr = 496.68 | F(000) = 528 |
Triclinic, P1 | Dx = 1.319 Mg m−3 |
a = 8.3278 (5) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 11.348 (4) Å | Cell parameters from 9472 reflections |
c = 13.661 (3) Å | θ = 2.8–31.9° |
α = 104.03 (2)° | µ = 0.24 mm−1 |
β = 92.517 (9)° | T = 293 K |
γ = 90.635 (12)° | Block, colourless |
V = 1250.9 (5) Å3 | 0.20 × 0.20 × 0.20 mm |
Oxford Diffraction Xcalibur3 diffractometer | 3564 reflections with I > 2σ(I) |
Radiation source: Enhance (Mo) X-ray Source | Rint = 0.014 |
Graphite monochromator | θmax = 25.0°, θmin = 3.0° |
Detector resolution: 16.1827 pixels mm-1 | h = −9→9 |
ω–scans | k = −13→13 |
11732 measured reflections | l = −16→16 |
4319 independent reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.032 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.090 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.10 | w = 1/[σ2(Fo2) + (0.043P)2 + 0.3755P] where P = (Fo2 + 2Fc2)/3 |
4319 reflections | (Δ/σ)max = 0.001 |
317 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.26 e Å−3 |
C9H17N2+·C17H15N2O2S2− | γ = 90.635 (12)° |
Mr = 496.68 | V = 1250.9 (5) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.3278 (5) Å | Mo Kα radiation |
b = 11.348 (4) Å | µ = 0.24 mm−1 |
c = 13.661 (3) Å | T = 293 K |
α = 104.03 (2)° | 0.20 × 0.20 × 0.20 mm |
β = 92.517 (9)° |
Oxford Diffraction Xcalibur3 diffractometer | 3564 reflections with I > 2σ(I) |
11732 measured reflections | Rint = 0.014 |
4319 independent reflections |
R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
wR(F2) = 0.090 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.10 | Δρmax = 0.33 e Å−3 |
4319 reflections | Δρmin = −0.26 e Å−3 |
317 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 | 0.12739 (5) | 0.23234 (3) | 0.07779 (3) | 0.03153 (12) | |
S2 | 0.32290 (6) | 0.09686 (4) | 0.32967 (3) | 0.04391 (14) | |
O1 | 0.21822 (14) | 0.32333 (11) | 0.04679 (9) | 0.0437 (3) | |
O2 | 0.10480 (15) | 0.11538 (10) | 0.00763 (9) | 0.0420 (3) | |
N1 | 0.17889 (17) | −0.00391 (12) | 0.15248 (11) | 0.0365 (3) | |
H1N | 0.136 (2) | 0.0021 (17) | 0.0957 (16) | 0.045 (5)* | |
N2 | 0.2919 (2) | 0.41319 (14) | 0.31254 (12) | 0.0506 (4) | |
N3 | 0.40259 (16) | 0.72438 (12) | 0.50300 (10) | 0.0363 (3) | |
N4 | 0.42004 (19) | 0.85309 (15) | 0.39899 (13) | 0.0459 (4) | |
H4N | 0.376 (3) | 0.904 (2) | 0.3749 (16) | 0.057 (6)* | |
C1 | 0.21102 (18) | 0.21136 (14) | 0.19027 (12) | 0.0309 (3) | |
C2 | 0.23091 (17) | 0.09922 (14) | 0.21630 (12) | 0.0303 (3) | |
C3 | 0.20953 (19) | −0.12349 (14) | 0.16308 (12) | 0.0323 (3) | |
C4 | 0.3526 (2) | −0.17697 (15) | 0.12811 (13) | 0.0382 (4) | |
C5 | 0.3722 (3) | −0.29728 (17) | 0.12940 (15) | 0.0524 (5) | |
H5 | 0.4660 | −0.3360 | 0.1062 | 0.063* | |
C6 | 0.2562 (3) | −0.35999 (17) | 0.16407 (17) | 0.0586 (6) | |
H6 | 0.2713 | −0.4412 | 0.1637 | 0.070* | |
C7 | 0.1188 (3) | −0.30538 (17) | 0.19914 (15) | 0.0532 (5) | |
H7 | 0.0420 | −0.3492 | 0.2239 | 0.064* | |
C8 | 0.0913 (2) | −0.18553 (16) | 0.19868 (13) | 0.0393 (4) | |
C9 | −0.0614 (2) | −0.1257 (2) | 0.23623 (17) | 0.0623 (6) | |
H9C | −0.1219 | −0.1788 | 0.2665 | 0.093* | |
H9B | −0.1239 | −0.1088 | 0.1807 | 0.093* | |
H9A | −0.0361 | −0.0511 | 0.2855 | 0.093* | |
C10 | 0.4806 (2) | −0.1070 (2) | 0.09221 (17) | 0.0587 (5) | |
H10C | 0.5594 | −0.1619 | 0.0591 | 0.088* | |
H10B | 0.5311 | −0.0495 | 0.1488 | 0.088* | |
H10A | 0.4337 | −0.0646 | 0.0456 | 0.088* | |
C11 | 0.25701 (19) | 0.32106 (14) | 0.25980 (12) | 0.0337 (4) | |
C12 | −0.06628 (19) | 0.29086 (15) | 0.10429 (12) | 0.0343 (4) | |
C13 | −0.1846 (2) | 0.21876 (18) | 0.12817 (14) | 0.0472 (4) | |
H13 | −0.1636 | 0.1392 | 0.1306 | 0.057* | |
C14 | −0.3353 (2) | 0.2659 (2) | 0.14860 (16) | 0.0600 (6) | |
H14 | −0.4158 | 0.2181 | 0.1657 | 0.072* | |
C15 | −0.3663 (3) | 0.3824 (2) | 0.14384 (17) | 0.0665 (6) | |
H15 | −0.4679 | 0.4136 | 0.1573 | 0.080* | |
C16 | −0.2487 (3) | 0.4526 (2) | 0.11951 (19) | 0.0653 (6) | |
H16 | −0.2706 | 0.5319 | 0.1166 | 0.078* | |
C17 | −0.0964 (2) | 0.40779 (17) | 0.09902 (15) | 0.0473 (4) | |
H17 | −0.0163 | 0.4560 | 0.0820 | 0.057* | |
C18 | 0.3354 (2) | 0.69195 (18) | 0.59082 (14) | 0.0473 (4) | |
H18B | 0.3227 | 0.7656 | 0.6433 | 0.057* | |
H18A | 0.4110 | 0.6414 | 0.6170 | 0.057* | |
C19 | 0.1752 (2) | 0.6252 (2) | 0.56735 (18) | 0.0589 (5) | |
H19B | 0.1787 | 0.5667 | 0.5027 | 0.071* | |
H19A | 0.1577 | 0.5806 | 0.6183 | 0.071* | |
C20 | 0.0358 (2) | 0.7076 (2) | 0.56372 (19) | 0.0656 (6) | |
H20A | 0.0282 | 0.7624 | 0.6299 | 0.079* | |
H20B | −0.0624 | 0.6585 | 0.5492 | 0.079* | |
C21 | 0.0472 (2) | 0.7822 (2) | 0.48615 (18) | 0.0639 (6) | |
H21B | −0.0502 | 0.8283 | 0.4865 | 0.077* | |
H21A | 0.0515 | 0.7271 | 0.4199 | 0.077* | |
C22 | 0.1902 (2) | 0.86958 (18) | 0.50166 (17) | 0.0547 (5) | |
H22B | 0.1666 | 0.9322 | 0.4662 | 0.066* | |
H22A | 0.2040 | 0.9088 | 0.5730 | 0.066* | |
C23 | 0.3450 (2) | 0.81263 (15) | 0.46655 (13) | 0.0376 (4) | |
C24 | 0.5760 (2) | 0.80974 (19) | 0.36486 (16) | 0.0527 (5) | |
H24B | 0.6604 | 0.8544 | 0.4105 | 0.063* | |
H24A | 0.5910 | 0.8221 | 0.2980 | 0.063* | |
C25 | 0.5840 (2) | 0.67836 (19) | 0.36216 (15) | 0.0529 (5) | |
H25B | 0.6914 | 0.6500 | 0.3460 | 0.063* | |
H25A | 0.5091 | 0.6329 | 0.3098 | 0.063* | |
C26 | 0.5433 (2) | 0.65656 (16) | 0.46223 (14) | 0.0429 (4) | |
H26B | 0.5223 | 0.5704 | 0.4545 | 0.051* | |
H26A | 0.6347 | 0.6805 | 0.5097 | 0.051* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0346 (2) | 0.0303 (2) | 0.0314 (2) | 0.00208 (15) | 0.00147 (16) | 0.01090 (16) |
S2 | 0.0605 (3) | 0.0321 (2) | 0.0387 (3) | 0.0009 (2) | −0.0147 (2) | 0.01085 (18) |
O1 | 0.0424 (6) | 0.0452 (7) | 0.0508 (7) | −0.0001 (5) | 0.0073 (6) | 0.0248 (6) |
O2 | 0.0575 (7) | 0.0361 (6) | 0.0312 (6) | 0.0053 (5) | −0.0030 (5) | 0.0065 (5) |
N1 | 0.0487 (8) | 0.0268 (7) | 0.0335 (8) | 0.0009 (6) | −0.0098 (7) | 0.0083 (6) |
N2 | 0.0681 (11) | 0.0335 (8) | 0.0479 (9) | −0.0050 (7) | −0.0077 (8) | 0.0076 (7) |
N3 | 0.0370 (7) | 0.0378 (8) | 0.0365 (8) | 0.0020 (6) | −0.0005 (6) | 0.0143 (6) |
N4 | 0.0464 (9) | 0.0440 (9) | 0.0553 (10) | 0.0043 (7) | 0.0041 (7) | 0.0271 (8) |
C1 | 0.0332 (8) | 0.0278 (8) | 0.0323 (8) | 0.0011 (6) | −0.0026 (6) | 0.0093 (7) |
C2 | 0.0283 (7) | 0.0293 (8) | 0.0338 (8) | 0.0014 (6) | 0.0003 (6) | 0.0085 (7) |
C3 | 0.0404 (9) | 0.0257 (8) | 0.0303 (8) | −0.0013 (6) | −0.0055 (7) | 0.0073 (6) |
C4 | 0.0399 (9) | 0.0380 (9) | 0.0353 (9) | 0.0024 (7) | −0.0031 (7) | 0.0067 (7) |
C5 | 0.0583 (12) | 0.0405 (10) | 0.0526 (12) | 0.0158 (9) | −0.0086 (9) | 0.0014 (9) |
C6 | 0.0874 (16) | 0.0262 (9) | 0.0608 (13) | −0.0007 (10) | −0.0164 (12) | 0.0114 (9) |
C7 | 0.0717 (13) | 0.0409 (10) | 0.0488 (11) | −0.0194 (10) | −0.0084 (10) | 0.0174 (9) |
C8 | 0.0444 (9) | 0.0403 (9) | 0.0327 (9) | −0.0070 (7) | −0.0024 (7) | 0.0086 (7) |
C9 | 0.0500 (11) | 0.0808 (15) | 0.0576 (13) | −0.0012 (11) | 0.0125 (10) | 0.0184 (12) |
C10 | 0.0486 (11) | 0.0661 (13) | 0.0597 (13) | −0.0044 (10) | 0.0123 (10) | 0.0107 (11) |
C11 | 0.0370 (8) | 0.0302 (9) | 0.0356 (9) | 0.0019 (7) | −0.0024 (7) | 0.0122 (7) |
C12 | 0.0326 (8) | 0.0403 (9) | 0.0295 (8) | 0.0017 (7) | −0.0024 (6) | 0.0080 (7) |
C13 | 0.0432 (10) | 0.0556 (11) | 0.0466 (11) | −0.0027 (8) | 0.0015 (8) | 0.0199 (9) |
C14 | 0.0379 (10) | 0.0952 (18) | 0.0475 (11) | −0.0059 (11) | 0.0051 (9) | 0.0184 (11) |
C15 | 0.0423 (11) | 0.0912 (18) | 0.0594 (14) | 0.0203 (12) | 0.0024 (10) | 0.0045 (12) |
C16 | 0.0546 (12) | 0.0571 (13) | 0.0788 (16) | 0.0213 (10) | −0.0019 (11) | 0.0063 (12) |
C17 | 0.0441 (10) | 0.0400 (10) | 0.0564 (12) | 0.0035 (8) | −0.0029 (9) | 0.0103 (9) |
C18 | 0.0533 (11) | 0.0528 (11) | 0.0413 (10) | 0.0029 (9) | 0.0040 (8) | 0.0220 (9) |
C19 | 0.0607 (12) | 0.0579 (13) | 0.0649 (13) | −0.0064 (10) | 0.0129 (10) | 0.0266 (11) |
C20 | 0.0470 (11) | 0.0824 (16) | 0.0721 (15) | −0.0043 (11) | 0.0142 (11) | 0.0263 (13) |
C21 | 0.0391 (10) | 0.0882 (16) | 0.0709 (15) | 0.0131 (10) | 0.0090 (10) | 0.0305 (13) |
C22 | 0.0573 (12) | 0.0495 (11) | 0.0635 (13) | 0.0199 (9) | 0.0147 (10) | 0.0232 (10) |
C23 | 0.0400 (9) | 0.0339 (9) | 0.0399 (9) | 0.0001 (7) | −0.0008 (7) | 0.0113 (7) |
C24 | 0.0401 (10) | 0.0677 (13) | 0.0576 (12) | 0.0005 (9) | 0.0076 (9) | 0.0284 (11) |
C25 | 0.0489 (11) | 0.0609 (12) | 0.0489 (11) | 0.0122 (9) | 0.0076 (9) | 0.0121 (10) |
C26 | 0.0446 (10) | 0.0385 (9) | 0.0465 (10) | 0.0094 (8) | 0.0007 (8) | 0.0122 (8) |
S1—O1 | 1.4285 (12) | C12—C17 | 1.371 (2) |
S1—O2 | 1.4413 (13) | C12—C13 | 1.373 (2) |
S1—C1 | 1.7291 (16) | C13—C14 | 1.383 (3) |
S1—C12 | 1.7697 (16) | C13—H13 | 0.9300 |
S2—C2 | 1.7037 (16) | C14—C15 | 1.366 (3) |
N1—C2 | 1.334 (2) | C14—H14 | 0.9300 |
N1—C3 | 1.424 (2) | C15—C16 | 1.358 (3) |
N1—H1N | 0.86 (2) | C15—H15 | 0.9300 |
N2—C11 | 1.143 (2) | C16—C17 | 1.387 (3) |
N3—C23 | 1.308 (2) | C16—H16 | 0.9300 |
N3—C26 | 1.465 (2) | C17—H17 | 0.9300 |
N3—C18 | 1.469 (2) | C18—C19 | 1.509 (3) |
N4—C23 | 1.305 (2) | C18—H18B | 0.9700 |
N4—C24 | 1.450 (2) | C18—H18A | 0.9700 |
N4—H4N | 0.82 (2) | C19—C20 | 1.505 (3) |
C1—C11 | 1.408 (2) | C19—H19B | 0.9700 |
C1—C2 | 1.411 (2) | C19—H19A | 0.9700 |
C3—C8 | 1.377 (2) | C20—C21 | 1.514 (3) |
C3—C4 | 1.393 (2) | C20—H20A | 0.9700 |
C4—C5 | 1.381 (3) | C20—H20B | 0.9700 |
C4—C10 | 1.491 (3) | C21—C22 | 1.515 (3) |
C5—C6 | 1.361 (3) | C21—H21B | 0.9700 |
C5—H5 | 0.9300 | C21—H21A | 0.9700 |
C6—C7 | 1.358 (3) | C22—C23 | 1.494 (2) |
C6—H6 | 0.9300 | C22—H22B | 0.9700 |
C7—C8 | 1.383 (3) | C22—H22A | 0.9700 |
C7—H7 | 0.9300 | C24—C25 | 1.485 (3) |
C8—C9 | 1.500 (3) | C24—H24B | 0.9700 |
C9—H9C | 0.9600 | C24—H24A | 0.9700 |
C9—H9B | 0.9600 | C25—C26 | 1.499 (3) |
C9—H9A | 0.9600 | C25—H25B | 0.9700 |
C10—H10C | 0.9600 | C25—H25A | 0.9700 |
C10—H10B | 0.9600 | C26—H26B | 0.9700 |
C10—H10A | 0.9600 | C26—H26A | 0.9700 |
O1—S1—O2 | 117.84 (8) | C16—C15—C14 | 120.04 (19) |
O1—S1—C1 | 109.46 (8) | C16—C15—H15 | 120.0 |
O2—S1—C1 | 108.65 (7) | C14—C15—H15 | 120.0 |
O1—S1—C12 | 107.00 (8) | C15—C16—C17 | 120.9 (2) |
O2—S1—C12 | 106.90 (8) | C15—C16—H16 | 119.5 |
C1—S1—C12 | 106.39 (8) | C17—C16—H16 | 119.5 |
C2—N1—C3 | 125.95 (14) | C12—C17—C16 | 118.62 (19) |
C2—N1—H1N | 116.6 (13) | C12—C17—H17 | 120.7 |
C3—N1—H1N | 116.7 (13) | C16—C17—H17 | 120.7 |
C23—N3—C26 | 122.01 (14) | N3—C18—C19 | 113.53 (16) |
C23—N3—C18 | 121.92 (15) | N3—C18—H18B | 108.9 |
C26—N3—C18 | 115.99 (14) | C19—C18—H18B | 108.9 |
C23—N4—C24 | 122.62 (16) | N3—C18—H18A | 108.9 |
C23—N4—H4N | 118.0 (15) | C19—C18—H18A | 108.9 |
C24—N4—H4N | 119.4 (15) | H18B—C18—H18A | 107.7 |
C11—C1—C2 | 120.44 (14) | C20—C19—C18 | 113.49 (18) |
C11—C1—S1 | 113.16 (11) | C20—C19—H19B | 108.9 |
C2—C1—S1 | 126.38 (12) | C18—C19—H19B | 108.9 |
N1—C2—C1 | 120.26 (14) | C20—C19—H19A | 108.9 |
N1—C2—S2 | 120.37 (12) | C18—C19—H19A | 108.9 |
C1—C2—S2 | 119.37 (12) | H19B—C19—H19A | 107.7 |
C8—C3—C4 | 122.55 (15) | C19—C20—C21 | 114.37 (18) |
C8—C3—N1 | 118.90 (15) | C19—C20—H20A | 108.7 |
C4—C3—N1 | 118.28 (15) | C21—C20—H20A | 108.7 |
C5—C4—C3 | 117.24 (17) | C19—C20—H20B | 108.7 |
C5—C4—C10 | 121.19 (18) | C21—C20—H20B | 108.7 |
C3—C4—C10 | 121.56 (16) | H20A—C20—H20B | 107.6 |
C6—C5—C4 | 120.93 (19) | C20—C21—C22 | 115.35 (19) |
C6—C5—H5 | 119.5 | C20—C21—H21B | 108.4 |
C4—C5—H5 | 119.5 | C22—C21—H21B | 108.4 |
C7—C6—C5 | 120.74 (18) | C20—C21—H21A | 108.4 |
C7—C6—H6 | 119.6 | C22—C21—H21A | 108.4 |
C5—C6—H6 | 119.6 | H21B—C21—H21A | 107.5 |
C6—C7—C8 | 121.06 (19) | C23—C22—C21 | 114.77 (17) |
C6—C7—H7 | 119.5 | C23—C22—H22B | 108.6 |
C8—C7—H7 | 119.5 | C21—C22—H22B | 108.6 |
C3—C8—C7 | 117.46 (17) | C23—C22—H22A | 108.6 |
C3—C8—C9 | 121.48 (17) | C21—C22—H22A | 108.6 |
C7—C8—C9 | 121.06 (18) | H22B—C22—H22A | 107.6 |
C8—C9—H9C | 109.5 | N4—C23—N3 | 121.38 (16) |
C8—C9—H9B | 109.5 | N4—C23—C22 | 118.27 (16) |
H9C—C9—H9B | 109.5 | N3—C23—C22 | 120.34 (16) |
C8—C9—H9A | 109.5 | N4—C24—C25 | 108.70 (16) |
H9C—C9—H9A | 109.5 | N4—C24—H24B | 110.0 |
H9B—C9—H9A | 109.5 | C25—C24—H24B | 110.0 |
C4—C10—H10C | 109.5 | N4—C24—H24A | 110.0 |
C4—C10—H10B | 109.5 | C25—C24—H24A | 110.0 |
H10C—C10—H10B | 109.5 | H24B—C24—H24A | 108.3 |
C4—C10—H10A | 109.5 | C24—C25—C26 | 110.45 (17) |
H10C—C10—H10A | 109.5 | C24—C25—H25B | 109.6 |
H10B—C10—H10A | 109.5 | C26—C25—H25B | 109.6 |
N2—C11—C1 | 176.46 (17) | C24—C25—H25A | 109.6 |
C17—C12—C13 | 120.95 (17) | C26—C25—H25A | 109.6 |
C17—C12—S1 | 119.06 (13) | H25B—C25—H25A | 108.1 |
C13—C12—S1 | 119.98 (14) | N3—C26—C25 | 112.07 (14) |
C12—C13—C14 | 119.24 (19) | N3—C26—H26B | 109.2 |
C12—C13—H13 | 120.4 | C25—C26—H26B | 109.2 |
C14—C13—H13 | 120.4 | N3—C26—H26A | 109.2 |
C15—C14—C13 | 120.2 (2) | C25—C26—H26A | 109.2 |
C15—C14—H14 | 119.9 | H26B—C26—H26A | 107.9 |
C13—C14—H14 | 119.9 | ||
O1—S1—C1—C11 | 42.43 (14) | O1—S1—C12—C13 | 174.72 (14) |
O2—S1—C1—C11 | 172.37 (11) | O2—S1—C12—C13 | 47.62 (16) |
C12—S1—C1—C11 | −72.86 (13) | C1—S1—C12—C13 | −68.34 (16) |
O1—S1—C1—C2 | −139.31 (14) | C17—C12—C13—C14 | −1.0 (3) |
O2—S1—C1—C2 | −9.36 (17) | S1—C12—C13—C14 | −179.96 (14) |
C12—S1—C1—C2 | 105.41 (15) | C12—C13—C14—C15 | 0.8 (3) |
C3—N1—C2—C1 | 171.24 (15) | C13—C14—C15—C16 | −0.4 (3) |
C3—N1—C2—S2 | −8.4 (2) | C14—C15—C16—C17 | 0.1 (4) |
C11—C1—C2—N1 | 176.19 (14) | C13—C12—C17—C16 | 0.8 (3) |
S1—C1—C2—N1 | −2.0 (2) | S1—C12—C17—C16 | 179.74 (15) |
C11—C1—C2—S2 | −4.2 (2) | C15—C16—C17—C12 | −0.3 (3) |
S1—C1—C2—S2 | 177.69 (9) | C23—N3—C18—C19 | 74.2 (2) |
C2—N1—C3—C8 | 101.1 (2) | C26—N3—C18—C19 | −109.05 (18) |
C2—N1—C3—C4 | −84.8 (2) | N3—C18—C19—C20 | −80.1 (2) |
C8—C3—C4—C5 | 0.6 (2) | C18—C19—C20—C21 | 59.1 (3) |
N1—C3—C4—C5 | −173.36 (15) | C19—C20—C21—C22 | −61.7 (3) |
C8—C3—C4—C10 | −178.51 (17) | C20—C21—C22—C23 | 79.5 (2) |
N1—C3—C4—C10 | 7.6 (2) | C24—N4—C23—N3 | −4.3 (3) |
C3—C4—C5—C6 | −0.4 (3) | C24—N4—C23—C22 | 175.81 (18) |
C10—C4—C5—C6 | 178.72 (19) | C26—N3—C23—N4 | −7.3 (3) |
C4—C5—C6—C7 | −0.6 (3) | C18—N3—C23—N4 | 169.31 (17) |
C5—C6—C7—C8 | 1.4 (3) | C26—N3—C23—C22 | 172.61 (16) |
C4—C3—C8—C7 | 0.2 (2) | C18—N3—C23—C22 | −10.8 (3) |
N1—C3—C8—C7 | 174.06 (16) | C21—C22—C23—N4 | 122.0 (2) |
C4—C3—C8—C9 | 179.79 (17) | C21—C22—C23—N3 | −57.8 (3) |
N1—C3—C8—C9 | −6.3 (2) | C23—N4—C24—C25 | 35.4 (3) |
C6—C7—C8—C3 | −1.2 (3) | N4—C24—C25—C26 | −53.5 (2) |
C6—C7—C8—C9 | 179.24 (18) | C23—N3—C26—C25 | −14.2 (2) |
O1—S1—C12—C17 | −4.27 (16) | C18—N3—C26—C25 | 169.07 (16) |
O2—S1—C12—C17 | −131.37 (14) | C24—C25—C26—N3 | 44.5 (2) |
C1—S1—C12—C17 | 112.67 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O2 | 0.86 (2) | 1.98 (2) | 2.7091 (19) | 143 (2) |
N4—H4N···S2i | 0.82 (2) | 2.45 (2) | 3.2335 (19) | 161 (2) |
Symmetry code: (i) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C9H17N2+·C17H15N2O2S2− |
Mr | 496.68 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 8.3278 (5), 11.348 (4), 13.661 (3) |
α, β, γ (°) | 104.03 (2), 92.517 (9), 90.635 (12) |
V (Å3) | 1250.9 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.24 |
Crystal size (mm) | 0.20 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur3 |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11732, 4319, 3564 |
Rint | 0.014 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.090, 1.10 |
No. of reflections | 4319 |
No. of parameters | 317 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.33, −0.26 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2007), CrysAlis RED (Oxford Diffraction, 2007), SHELXTL (Sheldrick, 1998), XP (Siemens, 1998).
S1—O1 | 1.4285 (12) | N3—C23 | 1.308 (2) |
S1—O2 | 1.4413 (13) | N4—C23 | 1.305 (2) |
S1—C1 | 1.7291 (16) | C1—C2 | 1.411 (2) |
S2—C2 | 1.7037 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O2 | 0.86 (2) | 1.98 (2) | 2.7091 (19) | 143 (2) |
N4—H4N···S2i | 0.82 (2) | 2.45 (2) | 3.2335 (19) | 161 (2) |
Symmetry code: (i) x, y+1, z. |
References
Bürgi, H.-B. & Dunitz, J. D. (1994). Structure Correlation, Vol. 2, pp. 767–784. Weinheim: VCH. Google Scholar
Fadda, A. A., Refat, H. M. & Zaki, M. E. A. (2000). Molecules. 5, 701–709. CrossRef CAS Google Scholar
Dorwald, F. Z. (2000). USA Patent 6 136 984. Google Scholar
Lindeman, S. V., Hecht, J. & Kochi, J. K. (2003). J. Am. Chem. Soc. 125, 11597–11606. Web of Science CSD CrossRef PubMed CAS Google Scholar
Oxford Diffraction (2007). CrysAlis CCD and CrysAlis RED. Versions 1.171.31.8. Oxford Diffraction Ltd, Abingdon, Oxfordshire, England. Google Scholar
Perez, E. R., Santos, R. H. A., Gambardella, M. T. P., de Macedo, L. G. M., Rogrigues-Filho, U. P., Launay, J.-C. & Franco, D. W. (2004). J. Org. Chem. 69, 8005–8011. Web of Science CSD CrossRef PubMed CAS Google Scholar
Sheldrick, G. M. (1998). SHELXTL-Plus. PC Version 5.1. Bruker AXS, Madison Wisconsin, USA. Google Scholar
Siemens (1998). XP. Siemens Analytical X-ray Instruments Inc., Karlsruhe, Germany. Google Scholar
Zefirov, N. S., Palyulin, V. A. & Dashevskaya, E. E. (1990). J. Phys. Org. Chem. 3, 147–154. CrossRef CAS Web of Science Google Scholar
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The S,N-acetaleketenes are very efficient reagents for synthesis of the sulfur-containing heterocycles. However, synthesis and isolation of these compounds from the reaction mixture are difficult enough (Fadda, Refat Hala & Zaki, 2000; Florencio, 2000). Therefore information about crystal structure of these compounds is very limited. In this paper we report the molecular and crystal structure of the salt of the α-nitryl-α-phenylsulfonylketene S,N-(2,6-dimethylphenyl)-acetal with 1,8-Diaza-bicyclo[5,4,0]undec-7-ene. The N3—C23 and N4—C23 bonds of the cation have very close lengths (Table 1) which significantly differ from their mean values 1.355 Å and 1.279 Å (Bürgi & Dunitz, 1994), respectively. Similar deformation of these bonds was observed earlier in the protonated octahydropyrimidoazepines (Perez et al., 2004; Lindeman et al., 2003). The azepine ring of the cation adopts a chair conformation. The C18, C19, C21 and C22 atoms lie in the plane within 0.01 Å. Deviations of the C20, N3, C23 atoms from this plane are 0.65 Å, -1.08 Å and -1.03 Å, respectively. The tetrahydropyrimidine ring adopts conformation which is an intermediate between sofa and half-chair (the puckering parameters (Zefirov et al., 1990) are S=0.68, θ=42.0 °, ψ=19.8 °). Deviations of the C25 and C26 atoms from the mean-square plane of the remaining atoms of the ring are -0.76 Å and -0.23 Å, respectively. The value of the C2—S2 bond in anion is shorter than the mean value for Csp2—S bond (1.751 Å) and is longer as compared with Csp2?S bond (1.671 Å). This indicates that the negative charge is localized on the S2 atom. The C2, C1, N1, S1, S2 and C11 atoms of organic anion lie in the plane within 0.02 Å. The aromatic ring of the phenylsulfoxide substituent is orthogonal to the C1—C2 bond and is turned relatively the C1—S1 bond (the C12—S1—C1—C2 and C1—S1—C12—C17 torsion angles are 105.4 (1) ° and 112.7 (1)°, respectively). Formation of the N1—H1N···O2 intramolecular hydrogen bond (H···O 1.99 Å, N—H···O 144 °) causes almost coplanar arrangement of the S1—O2 and C1—C2 bonds (the O2—S1—C1—C2 torsion angle is -9.3 (2) °) and it leads to some elongation of these bonds as compared to mean values 1.436 Å for the S=O and 1.331 Å for the C=C bonds, and shortening of the C1—S1 bond (mean value is 1.779 Å). In the crystal phase the cations and anions are bonded by the N4—H4n···S2i intermolecular hydrogen bond (i) x, 1 + y, z; H···S 2.41 Å, N—H···S 160°).