organic compounds
Benzyl N-(4-pyridyl)carbamate
aThe Third Institute of Oceanography of the State Oceanic Administration, Xiamen 361005, People's Republic of China, and bDepartment of Pharmaceutical Science, Medical College, Xiamen University, Xiamen 361005, People's Republic of China
*Correspondence e-mail: fangmj@xmu.edu.cn
The title compound, C13H12N2O2, was obtained by the reaction of 4-aminopyridine and benzyl chloroformate in tetrahydrofuran. The contains N—H⋯N hydrogen bonds between two unique molecules within layers and antiparallel C—O⋯O—C interactions [O⋯O = 3.06 (3) Å] between the two molecules of the asymmetric unit.
Related literature
The title compound was synthesized in order to investigate the nature of its reversion tetrodotoxin-induced cardiorespiratory depression, see: Chang et al. (1997). For a related structure, see: Zheng et al. (2005).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S160053681000098X/jh2125sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681000098X/jh2125Isup2.hkl
A solution of dry tetrahydrofuran (15 ml) containing 4-aminopyridine (5 mmol, 0.47 g) and triethylamine (0.70 ml) was added dropwise to the solution of tetrahydrofuran (15 ml) containing the benzyl chloroformate (5 mmol, 0.85 g). The reaction mixture was stirred for 6 h in ice bath and the solvent was then removed under reduced pressure to give a residue, which was extracted with ethyl acetate (3 × 15 ml). The solution was dried over anhydrous MgSO4 and concentrated under vacuum to obtain a slurry residue, which was purified by silica gel
(petroleum ether/ethyl acetate = 2:1) to give products I as colorless amorphous solids. Single crystals of (I) suitable for X-ray analysis were obtained by slow evaporation of a petroleum ether /dichloromethane solution (1:1 v/v).All H atoms were placed in geometrically idealized positions and treated as riding on their parent atoms, with C—H = 0.93 (aromatic), 0.97 (CH2), N—H = 0.86 Å and Uiso(H) = 1.2Ueq (aromatic C, CH2 and N).
The title compound, (I), a 4-aminopyridine analog, was synthesized for investigation of the nature of its reversion tetrodotoxin-induced cardiorespiratorydepression (Chang et al., 1997). The crystal packing is stabilized by stronger N-H···N hydrogen bonds between molecules within layers and antiparallel C-O ··· O-C interactions between the two molecules of the
and bond lengths and angles are in agreement with values reported for a similar compound (Zheng et al., 2005). The dihedral angle between the planes of the phenzene ring and pyridine ring systems is 66.2 (3) °.For related literature, see: Zheng et al. (2005); Chang et al. (1997).
Data collection: SMART (Bruker, 2001); cell
SMART (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C13H12N2O2 | F(000) = 960 |
Mr = 228.25 | Dx = 1.325 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2895 reflections |
a = 11.9439 (5) Å | θ = 2.1–26.4° |
b = 13.2120 (6) Å | µ = 0.09 mm−1 |
c = 14.6574 (7) Å | T = 293 K |
β = 98.418 (4)° | Chunk, colorless |
V = 2288.06 (18) Å3 | 0.30 × 0.22 × 0.18 mm |
Z = 8 |
Bruker APEX area-detector diffractometer | 4028 independent reflections |
Radiation source: fine-focus sealed tube | 2831 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
φ and ω scan | θmax = 25.0°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −14→12 |
Tmin = 0.973, Tmax = 0.984 | k = −15→15 |
11332 measured reflections | l = −17→17 |
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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.070 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0229P)2 + 0.110P] where P = (Fo2 + 2Fc2)/3 |
4028 reflections | (Δ/σ)max < 0.001 |
307 parameters | Δρmax = 0.17 e Å−3 |
0 restraints | Δρmin = −0.17 e Å−3 |
C13H12N2O2 | V = 2288.06 (18) Å3 |
Mr = 228.25 | Z = 8 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.9439 (5) Å | µ = 0.09 mm−1 |
b = 13.2120 (6) Å | T = 293 K |
c = 14.6574 (7) Å | 0.30 × 0.22 × 0.18 mm |
β = 98.418 (4)° |
Bruker APEX area-detector diffractometer | 4028 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 2831 reflections with I > 2σ(I) |
Tmin = 0.973, Tmax = 0.984 | Rint = 0.039 |
11332 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.070 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.17 e Å−3 |
4028 reflections | Δρmin = −0.17 e Å−3 |
307 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 | ||
N2' | 0.16150 (9) | 0.18181 (9) | −0.00328 (9) | 0.0227 (3) | |
H2'C | 0.2140 | 0.1458 | −0.0216 | 0.027* | |
O1 | 0.42587 (8) | 0.17805 (9) | 0.26686 (8) | 0.0335 (3) | |
O2 | 0.24197 (8) | 0.13329 (8) | 0.22775 (8) | 0.0330 (3) | |
O1' | 0.13791 (8) | 0.32072 (8) | 0.08678 (8) | 0.0301 (3) | |
O2' | 0.30953 (8) | 0.27290 (8) | 0.05366 (8) | 0.0288 (3) | |
N2 | 0.36888 (9) | 0.04846 (9) | 0.16579 (9) | 0.0240 (3) | |
H2C | 0.3088 | 0.0179 | 0.1403 | 0.029* | |
C1 | 0.35408 (12) | 0.12531 (12) | 0.22453 (11) | 0.0241 (4) | |
N1' | −0.16725 (10) | 0.07480 (10) | −0.09588 (10) | 0.0297 (3) | |
C9 | 0.47128 (11) | 0.01402 (12) | 0.14254 (10) | 0.0217 (4) | |
C3' | 0.48132 (13) | 0.36576 (11) | 0.08454 (12) | 0.0269 (4) | |
C13 | 0.57368 (12) | 0.06602 (13) | 0.16021 (12) | 0.0292 (4) | |
H13A | 0.5789 | 0.1278 | 0.1909 | 0.035* | |
C10 | 0.47072 (12) | −0.07770 (12) | 0.09719 (11) | 0.0254 (4) | |
H10A | 0.4040 | −0.1147 | 0.0844 | 0.031* | |
C1' | 0.19585 (12) | 0.26347 (12) | 0.04966 (11) | 0.0229 (4) | |
C9' | 0.05051 (12) | 0.14969 (11) | −0.03138 (11) | 0.0200 (4) | |
C10' | 0.03345 (12) | 0.07278 (12) | −0.09590 (11) | 0.0244 (4) | |
H10B | 0.0948 | 0.0447 | −0.1193 | 0.029* | |
C13' | −0.04470 (12) | 0.18983 (12) | 0.00023 (11) | 0.0257 (4) | |
H13B | −0.0382 | 0.2421 | 0.0432 | 0.031* | |
N1 | 0.66870 (10) | −0.06576 (10) | 0.08657 (9) | 0.0290 (3) | |
C11' | −0.07391 (12) | 0.03782 (12) | −0.12545 (12) | 0.0281 (4) | |
H11A | −0.0827 | −0.0144 | −0.1684 | 0.034* | |
C3 | 0.09174 (12) | 0.16792 (12) | 0.31022 (11) | 0.0243 (4) | |
C11 | 0.56904 (12) | −0.11411 (12) | 0.07098 (12) | 0.0283 (4) | |
H11B | 0.5662 | −0.1760 | 0.0406 | 0.034* | |
C2' | 0.36095 (12) | 0.36077 (12) | 0.10249 (12) | 0.0333 (4) | |
H2'A | 0.3585 | 0.3543 | 0.1681 | 0.040* | |
H2'B | 0.3206 | 0.4218 | 0.0804 | 0.040* | |
C12 | 0.66733 (12) | 0.02252 (13) | 0.13053 (12) | 0.0328 (4) | |
H12A | 0.7352 | 0.0579 | 0.1422 | 0.039* | |
C8 | −0.00463 (13) | 0.21433 (13) | 0.26577 (12) | 0.0320 (4) | |
H8A | 0.0015 | 0.2712 | 0.2294 | 0.038* | |
C4 | 0.08082 (15) | 0.08481 (13) | 0.36471 (12) | 0.0367 (4) | |
H4A | 0.1454 | 0.0542 | 0.3961 | 0.044* | |
C2 | 0.20694 (13) | 0.20348 (13) | 0.29487 (12) | 0.0348 (5) | |
H2A | 0.2034 | 0.2721 | 0.2711 | 0.042* | |
H2B | 0.2594 | 0.2017 | 0.3520 | 0.042* | |
C4' | 0.50592 (14) | 0.36917 (12) | −0.00500 (13) | 0.0351 (4) | |
H4'A | 0.4472 | 0.3691 | −0.0543 | 0.042* | |
C8' | 0.56941 (14) | 0.36833 (13) | 0.15684 (13) | 0.0388 (5) | |
H8'A | 0.5545 | 0.3653 | 0.2173 | 0.047* | |
C12' | −0.14897 (12) | 0.14942 (12) | −0.03432 (12) | 0.0309 (4) | |
H12B | −0.2119 | 0.1767 | −0.0127 | 0.037* | |
C5' | 0.61669 (16) | 0.37268 (13) | −0.02173 (15) | 0.0465 (5) | |
H5'A | 0.6322 | 0.3726 | −0.0821 | 0.056* | |
C6 | −0.12000 (16) | 0.09262 (18) | 0.32858 (15) | 0.0521 (6) | |
H6A | −0.1911 | 0.0671 | 0.3345 | 0.063* | |
C7 | −0.11059 (14) | 0.17636 (16) | 0.27524 (14) | 0.0453 (5) | |
H7A | −0.1754 | 0.2079 | 0.2453 | 0.054* | |
C7' | 0.68094 (15) | 0.37554 (14) | 0.13934 (17) | 0.0522 (6) | |
H7'A | 0.7400 | 0.3799 | 0.1882 | 0.063* | |
C6' | 0.70368 (16) | 0.37628 (14) | 0.05031 (18) | 0.0524 (6) | |
H6'A | 0.7782 | 0.3792 | 0.0388 | 0.063* | |
C5 | −0.02418 (18) | 0.04609 (15) | 0.37357 (14) | 0.0495 (6) | |
H5A | −0.0304 | −0.0110 | 0.4096 | 0.059* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N2' | 0.0176 (7) | 0.0229 (7) | 0.0278 (8) | 0.0018 (5) | 0.0046 (6) | −0.0046 (7) |
O1 | 0.0266 (6) | 0.0403 (7) | 0.0339 (7) | −0.0061 (5) | 0.0051 (6) | −0.0154 (6) |
O2 | 0.0215 (6) | 0.0421 (7) | 0.0365 (7) | 0.0007 (5) | 0.0081 (5) | −0.0205 (6) |
O1' | 0.0277 (6) | 0.0280 (7) | 0.0356 (7) | 0.0020 (5) | 0.0078 (5) | −0.0092 (6) |
O2' | 0.0214 (6) | 0.0273 (7) | 0.0383 (7) | −0.0062 (4) | 0.0065 (5) | −0.0115 (6) |
N2 | 0.0162 (7) | 0.0282 (8) | 0.0276 (8) | −0.0019 (5) | 0.0028 (6) | −0.0090 (7) |
C1 | 0.0233 (9) | 0.0283 (10) | 0.0212 (9) | 0.0012 (7) | 0.0051 (7) | −0.0013 (8) |
N1' | 0.0224 (7) | 0.0310 (9) | 0.0357 (9) | −0.0012 (6) | 0.0043 (6) | −0.0044 (7) |
C9 | 0.0185 (8) | 0.0276 (10) | 0.0191 (9) | 0.0019 (6) | 0.0030 (7) | 0.0019 (8) |
C3' | 0.0293 (9) | 0.0198 (9) | 0.0318 (11) | −0.0058 (7) | 0.0054 (8) | −0.0060 (8) |
C13 | 0.0241 (9) | 0.0307 (10) | 0.0330 (11) | −0.0027 (7) | 0.0048 (8) | −0.0103 (9) |
C10 | 0.0205 (8) | 0.0269 (10) | 0.0295 (10) | −0.0034 (7) | 0.0055 (7) | −0.0029 (8) |
C1' | 0.0242 (9) | 0.0223 (9) | 0.0221 (9) | −0.0004 (7) | 0.0033 (7) | 0.0016 (8) |
C9' | 0.0192 (8) | 0.0202 (9) | 0.0206 (9) | −0.0012 (6) | 0.0028 (7) | 0.0039 (7) |
C10' | 0.0203 (8) | 0.0265 (9) | 0.0271 (10) | 0.0009 (7) | 0.0061 (7) | −0.0019 (8) |
C13' | 0.0239 (9) | 0.0262 (10) | 0.0271 (10) | 0.0012 (7) | 0.0044 (7) | −0.0036 (8) |
N1 | 0.0222 (7) | 0.0331 (9) | 0.0317 (9) | 0.0007 (6) | 0.0047 (6) | −0.0040 (7) |
C11' | 0.0271 (9) | 0.0271 (10) | 0.0305 (10) | −0.0019 (7) | 0.0055 (8) | −0.0047 (8) |
C3 | 0.0266 (9) | 0.0256 (9) | 0.0213 (10) | 0.0015 (7) | 0.0056 (7) | −0.0087 (8) |
C11 | 0.0258 (9) | 0.0263 (10) | 0.0331 (11) | 0.0001 (7) | 0.0055 (8) | −0.0047 (8) |
C2' | 0.0333 (10) | 0.0257 (10) | 0.0416 (12) | −0.0096 (7) | 0.0083 (9) | −0.0127 (9) |
C12 | 0.0205 (9) | 0.0409 (12) | 0.0370 (11) | −0.0067 (7) | 0.0044 (8) | −0.0096 (9) |
C8 | 0.0373 (10) | 0.0330 (11) | 0.0258 (10) | 0.0034 (8) | 0.0051 (8) | −0.0031 (8) |
C4 | 0.0448 (11) | 0.0343 (11) | 0.0298 (11) | 0.0040 (8) | 0.0019 (9) | −0.0028 (9) |
C2 | 0.0327 (10) | 0.0393 (11) | 0.0347 (11) | −0.0014 (8) | 0.0120 (8) | −0.0194 (9) |
C4' | 0.0386 (10) | 0.0310 (10) | 0.0357 (11) | −0.0110 (8) | 0.0058 (9) | −0.0024 (9) |
C8' | 0.0431 (11) | 0.0353 (11) | 0.0357 (12) | −0.0068 (8) | −0.0021 (9) | −0.0078 (9) |
C12' | 0.0213 (9) | 0.0340 (11) | 0.0387 (11) | 0.0033 (7) | 0.0088 (8) | −0.0030 (9) |
C5' | 0.0514 (13) | 0.0368 (12) | 0.0574 (14) | −0.0174 (9) | 0.0287 (11) | −0.0123 (10) |
C6 | 0.0404 (12) | 0.0747 (16) | 0.0449 (14) | −0.0236 (11) | 0.0189 (11) | −0.0234 (12) |
C7 | 0.0291 (10) | 0.0607 (14) | 0.0442 (13) | 0.0035 (9) | −0.0009 (9) | −0.0149 (12) |
C7' | 0.0303 (11) | 0.0444 (13) | 0.0755 (17) | −0.0052 (8) | −0.0141 (11) | −0.0119 (12) |
C6' | 0.0327 (11) | 0.0376 (12) | 0.090 (2) | −0.0091 (9) | 0.0212 (13) | −0.0203 (12) |
C5 | 0.0732 (15) | 0.0442 (13) | 0.0340 (12) | −0.0213 (11) | 0.0174 (11) | −0.0027 (10) |
N2'—C1' | 1.3569 (19) | N1—C11 | 1.3407 (19) |
N2'—C9' | 1.3954 (17) | C11'—H11A | 0.9300 |
N2'—H2'C | 0.8600 | C3—C4 | 1.375 (2) |
O1—C1 | 1.2042 (18) | C3—C8 | 1.380 (2) |
O2—C1 | 1.3509 (16) | C3—C2 | 1.502 (2) |
O2—C2 | 1.4572 (17) | C11—H11B | 0.9300 |
O1'—C1' | 1.2072 (17) | C2'—H2'A | 0.9700 |
O2'—C1' | 1.3561 (16) | C2'—H2'B | 0.9700 |
O2'—C2' | 1.4520 (17) | C12—H12A | 0.9300 |
N2—C1 | 1.3595 (19) | C8—C7 | 1.387 (2) |
N2—C9 | 1.3932 (17) | C8—H8A | 0.9300 |
N2—H2C | 0.8600 | C4—C5 | 1.378 (2) |
N1'—C12' | 1.333 (2) | C4—H4A | 0.9300 |
N1'—C11' | 1.3457 (18) | C2—H2A | 0.9700 |
C9—C10 | 1.382 (2) | C2—H2B | 0.9700 |
C9—C13 | 1.394 (2) | C4'—C5' | 1.381 (2) |
C3'—C4' | 1.387 (2) | C4'—H4'A | 0.9300 |
C3'—C8' | 1.380 (2) | C8'—C7' | 1.396 (2) |
C3'—C2' | 1.500 (2) | C8'—H8'A | 0.9300 |
C13—C12 | 1.383 (2) | C12'—H12B | 0.9300 |
C13—H13A | 0.9300 | C5'—C6' | 1.369 (3) |
C10—C11 | 1.3749 (19) | C5'—H5'A | 0.9300 |
C10—H10A | 0.9300 | C6—C7 | 1.369 (3) |
C9'—C10' | 1.383 (2) | C6—C5 | 1.379 (3) |
C9'—C13' | 1.3940 (19) | C6—H6A | 0.9300 |
C10'—C11' | 1.372 (2) | C7—H7A | 0.9300 |
C10'—H10B | 0.9300 | C7'—C6' | 1.371 (3) |
C13'—C12' | 1.381 (2) | C7'—H7'A | 0.9300 |
C13'—H13B | 0.9300 | C6'—H6'A | 0.9300 |
N1—C12 | 1.334 (2) | C5—H5A | 0.9300 |
C1'—N2'—C9' | 127.25 (12) | O2'—C2'—H2'A | 110.3 |
C1'—N2'—H2'C | 116.4 | C3'—C2'—H2'A | 110.3 |
C9'—N2'—H2'C | 116.4 | O2'—C2'—H2'B | 110.3 |
C1—O2—C2 | 117.22 (12) | C3'—C2'—H2'B | 110.3 |
C1'—O2'—C2' | 116.32 (11) | H2'A—C2'—H2'B | 108.5 |
C1—N2—C9 | 126.80 (13) | N1—C12—C13 | 125.66 (14) |
C1—N2—H2C | 116.6 | N1—C12—H12A | 117.2 |
C9—N2—H2C | 116.6 | C13—C12—H12A | 117.2 |
O1—C1—O2 | 124.86 (14) | C7—C8—C3 | 120.14 (17) |
O1—C1—N2 | 127.57 (13) | C7—C8—H8A | 119.9 |
O2—C1—N2 | 107.58 (13) | C3—C8—H8A | 119.9 |
C12'—N1'—C11' | 115.17 (13) | C3—C4—C5 | 121.07 (18) |
C10—C9—N2 | 117.48 (13) | C3—C4—H4A | 119.5 |
C10—C9—C13 | 117.66 (13) | C5—C4—H4A | 119.5 |
N2—C9—C13 | 124.85 (14) | O2—C2—C3 | 105.19 (12) |
C4'—C3'—C8' | 118.84 (15) | O2—C2—H2A | 110.7 |
C4'—C3'—C2' | 120.56 (16) | C3—C2—H2A | 110.7 |
C8'—C3'—C2' | 120.59 (15) | O2—C2—H2B | 110.7 |
C12—C13—C9 | 117.70 (15) | C3—C2—H2B | 110.7 |
C12—C13—H13A | 121.2 | H2A—C2—H2B | 108.8 |
C9—C13—H13A | 121.2 | C3'—C4'—C5' | 120.68 (18) |
C9—C10—C11 | 119.81 (14) | C3'—C4'—H4'A | 119.7 |
C9—C10—H10A | 120.1 | C5'—C4'—H4'A | 119.7 |
C11—C10—H10A | 120.1 | C3'—C8'—C7' | 120.08 (18) |
O1'—C1'—O2' | 124.01 (14) | C3'—C8'—H8'A | 120.0 |
O1'—C1'—N2' | 127.63 (14) | C7'—C8'—H8'A | 120.0 |
O2'—C1'—N2' | 108.35 (12) | N1'—C12'—C13' | 125.71 (14) |
C10'—C9'—N2' | 117.64 (12) | N1'—C12'—H12B | 117.1 |
C10'—C9'—C13' | 117.46 (14) | C13'—C12'—H12B | 117.1 |
N2'—C9'—C13' | 124.90 (14) | C6'—C5'—C4' | 120.17 (19) |
C9'—C10'—C11' | 120.04 (13) | C6'—C5'—H5'A | 119.9 |
C9'—C10'—H10B | 120.0 | C4'—C5'—H5'A | 119.9 |
C11'—C10'—H10B | 120.0 | C7—C6—C5 | 120.11 (17) |
C12'—C13'—C9' | 117.82 (15) | C7—C6—H6A | 119.9 |
C12'—C13'—H13B | 121.1 | C5—C6—H6A | 119.9 |
C9'—C13'—H13B | 121.1 | C6—C7—C8 | 120.13 (18) |
C12—N1—C11 | 115.19 (12) | C6—C7—H7A | 119.9 |
N1'—C11'—C10' | 123.78 (16) | C8—C7—H7A | 119.9 |
N1'—C11'—H11A | 118.1 | C6'—C7'—C8' | 120.2 (2) |
C10'—C11'—H11A | 118.1 | C6'—C7'—H7'A | 119.9 |
C4—C3—C8 | 119.03 (15) | C8'—C7'—H7'A | 119.9 |
C4—C3—C2 | 120.24 (15) | C5'—C6'—C7' | 119.99 (17) |
C8—C3—C2 | 120.62 (16) | C5'—C6'—H6'A | 120.0 |
N1—C11—C10 | 123.99 (15) | C7'—C6'—H6'A | 120.0 |
N1—C11—H11B | 118.0 | C6—C5—C4 | 119.50 (19) |
C10—C11—H11B | 118.0 | C6—C5—H5A | 120.2 |
O2'—C2'—C3' | 107.20 (12) | C4—C5—H5A | 120.2 |
C2—O2—C1—O1 | −7.0 (2) | C4'—C3'—C2'—O2' | 56.18 (19) |
C2—O2—C1—N2 | 173.09 (13) | C8'—C3'—C2'—O2' | −124.65 (17) |
C9—N2—C1—O1 | 0.4 (3) | C11—N1—C12—C13 | 0.1 (3) |
C9—N2—C1—O2 | −179.66 (14) | C9—C13—C12—N1 | −0.4 (3) |
C1—N2—C9—C10 | 166.73 (15) | C4—C3—C8—C7 | −0.9 (2) |
C1—N2—C9—C13 | −14.4 (2) | C2—C3—C8—C7 | 175.37 (15) |
C10—C9—C13—C12 | 0.5 (2) | C8—C3—C4—C5 | 1.6 (2) |
N2—C9—C13—C12 | −178.37 (15) | C2—C3—C4—C5 | −174.66 (15) |
N2—C9—C10—C11 | 178.65 (15) | C1—O2—C2—C3 | −157.99 (14) |
C13—C9—C10—C11 | −0.3 (2) | C4—C3—C2—O2 | 77.04 (18) |
C2'—O2'—C1'—O1' | −3.0 (2) | C8—C3—C2—O2 | −99.19 (16) |
C2'—O2'—C1'—N2' | 175.94 (13) | C8'—C3'—C4'—C5' | 1.5 (2) |
C9'—N2'—C1'—O1' | 4.4 (3) | C2'—C3'—C4'—C5' | −179.31 (14) |
C9'—N2'—C1'—O2' | −174.45 (13) | C4'—C3'—C8'—C7' | 0.8 (3) |
C1'—N2'—C9'—C10' | 171.04 (15) | C2'—C3'—C8'—C7' | −178.39 (15) |
C1'—N2'—C9'—C13' | −8.5 (2) | C11'—N1'—C12'—C13' | −0.2 (2) |
N2'—C9'—C10'—C11' | 179.55 (14) | C9'—C13'—C12'—N1' | −0.1 (2) |
C13'—C9'—C10'—C11' | −0.9 (2) | C3'—C4'—C5'—C6' | −2.2 (3) |
C10'—C9'—C13'—C12' | 0.6 (2) | C5—C6—C7—C8 | 0.4 (3) |
N2'—C9'—C13'—C12' | −179.87 (14) | C3—C8—C7—C6 | −0.1 (3) |
C12'—N1'—C11'—C10' | −0.1 (2) | C3'—C8'—C7'—C6' | −2.4 (3) |
C9'—C10'—C11'—N1' | 0.7 (2) | C4'—C5'—C6'—C7' | 0.5 (3) |
C12—N1—C11—C10 | 0.1 (2) | C8'—C7'—C6'—C5' | 1.8 (3) |
C9—C10—C11—N1 | 0.0 (3) | C7—C6—C5—C4 | 0.3 (3) |
C1'—O2'—C2'—C3' | −170.42 (13) | C3—C4—C5—C6 | −1.3 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2′—H2′C···N1i | 0.86 | 2.09 | 2.9460 (16) | 171 |
N2—H2C···N1′ii | 0.86 | 2.11 | 2.9630 (18) | 170 |
Symmetry codes: (i) −x+1, −y, −z; (ii) −x, −y, −z. |
Experimental details
Crystal data | |
Chemical formula | C13H12N2O2 |
Mr | 228.25 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 11.9439 (5), 13.2120 (6), 14.6574 (7) |
β (°) | 98.418 (4) |
V (Å3) | 2288.06 (18) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.30 × 0.22 × 0.18 |
Data collection | |
Diffractometer | Bruker APEX area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.973, 0.984 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11332, 4028, 2831 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.070, 1.05 |
No. of reflections | 4028 |
No. of parameters | 307 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.17, −0.17 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N2'—H2'C···N1i | 0.86 | 2.09 | 2.9460 (16) | 171.1 |
N2—H2C···N1'ii | 0.86 | 2.11 | 2.9630 (18) | 170.4 |
Symmetry codes: (i) −x+1, −y, −z; (ii) −x, −y, −z. |
Acknowledgements
This work was supported by the Science and Technology Program of the Oceans and Fisheries Bureau of Xiamen (grant No. 200911) and the Natural Science Foundation of Fujian Province of China (grant No. 2009 J05099).
References
Bruker (2001). SAINT, SMART and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Chang, F. T. C., Spriggs, D. L., Benton, B. J., Keller, S. A. & Capacio, B. R. (1997). Fundam. Appl. Toxicol. 38, 75–88. CrossRef CAS PubMed Web of Science Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
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Zheng, P.-W., Wang, W. & Duan, X.-M. (2005). Acta Cryst. E61, o2970–o2971. Web of Science CSD CrossRef IUCr Journals Google Scholar
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The title compound, (I), a 4-aminopyridine analog, was synthesized for investigation of the nature of its reversion tetrodotoxin-induced cardiorespiratorydepression (Chang et al., 1997). The crystal packing is stabilized by stronger N-H···N hydrogen bonds between molecules within layers and antiparallel C-O ··· O-C interactions between the two molecules of the asymmetric unit, and bond lengths and angles are in agreement with values reported for a similar compound (Zheng et al., 2005). The dihedral angle between the planes of the phenzene ring and pyridine ring systems is 66.2 (3) °.