organic compounds
2-(4-Methylphenoxy)acetohydrazide
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, and bOrganic Chemistry Division, Department of Chemistry, National Institute of Technology-Karnataka, Surathkal, Mangalore 575 025, India
*Correspondence e-mail: hkfun@usm.my
In the title compound, C9H12N2O2, the acetohydrazide group is approximately planar [maximum deviation = 0.034 (2) Å]. In the crystal, molecules are linked via intermolecular N—H⋯O, N—H⋯N and C—H⋯O hydrogen bonds into infinite two-dimensional networks parallel to (001).
Related literature
For general background to and the biological activity of hydrazide derivatives, see: Isloor et al. (2009); Holla & Udupa (1992); Ozdemir et al. (2009); Khattab (2005); Yale et al. (1953). For the preparation of title compound, see: Conti (1964). For bond-length data, see: Allen et al. (1987). For related structures, see: Fun et al. (2009, 2010a,b).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); 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 and PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536810051937/hb5765sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810051937/hb5765Isup2.hkl
Ethyl(4-methylphenoxy)acetate (1.94 g, 0.01 mol) and hydrazine hydrate (99%, 0.02 mol) in ethanol (15 ml) was heated on a water-bath for 6 h. Excess ethanol was removed by distillation. On cooling, colourless needle-shaped crystals of 2-(4-methylphenoxy)acetohydrazide begin to separate. It was collected by filtration and recrystallized from ethanol. Yield: 1.2 g, 67.0 %, M.p.: 411-413K. (Conti, 1964).
H1N1, H1N2 and H2N2 were located in a difference Fourier map and allowed to refined freely. The remaining H atoms were positioned geometrically and refined using a riding model with C–H = 0.93 –0.97 Å and Uiso(H) = 1.2 or 1.5 Ueq(C). The highest residual electron density peak is located at 0.94 Å from H9C and the deepest hole is located at 0.94 Å from C8.
The full therapeutic possibilities of
were realized after the discovery of isonicotinic acid hydrazide (INH). and their derivatives have been described as useful synthons of various heterocyclic rings (Isloor et al., 2009; Holla & Udupa, 1992). A large number of and their derivatives are reported to possess a broad spectrum of biological activities (Ozdemir et al., 2009; Khattab, 2005). The most widely used method to prepare is hydrazinolysis of the corresponding with hydrazine hydrate (Yale et al., 1953). Prompted by the diverse activities of and its derivatives, we have synthesized the title compound to study its crystal structure.The molecular structure is shown in Fig. 1. The acetohydrazide group (C7/C8/N1/N2/O2) is approximately planar, with the maximum deviation of 0.034 (2) Å at atom C7. Bond lengths and angles are within normal ranges, and comparable to closely related structures (Fun et al., 2009, 2010a,b). In the solid state (Fig. 2), the molecules are linked via intermolecular N2–H1N2···O2, N2–H2N2···O2 and C1–H1A···O2 trifurcated acceptor bonds, together with N1–H1N1···N2 hydrogen bonds, into infinite two-dimensional networks parallel to plane (001).
For general background to and the biological activity of hydrazide derivatives, see: Isloor et al. (2009); Holla & Udupa (1992); Ozdemir et al. (2009); Khattab (2005); Yale et al. (1953). For the preparation of title compound, see: Conti (1964). For bond-length data, see: Allen et al. (1987). For related structures, see: Fun et al. (2009, 2010a,b).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); 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) and PLATON (Spek, 2009).C9H12N2O2 | F(000) = 384 |
Mr = 180.21 | Dx = 1.279 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 4756 reflections |
a = 6.3833 (2) Å | θ = 3.2–25.4° |
b = 4.0755 (1) Å | µ = 0.09 mm−1 |
c = 35.9741 (12) Å | T = 296 K |
β = 90.018 (2)° | Block, colourless |
V = 935.87 (5) Å3 | 0.46 × 0.33 × 0.10 mm |
Z = 4 |
Bruker SMART APEXII CCD area-detector diffractometer | 2150 independent reflections |
Radiation source: fine-focus sealed tube | 1747 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.042 |
φ and ω scans | θmax = 27.5°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −8→8 |
Tmin = 0.959, Tmax = 0.991 | k = −5→5 |
15060 measured reflections | l = −46→45 |
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)] = 0.067 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.149 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.14 | w = 1/[σ2(Fo2) + (0.0368P)2 + 0.8025P] where P = (Fo2 + 2Fc2)/3 |
2150 reflections | (Δ/σ)max = 0.001 |
131 parameters | Δρmax = 0.21 e Å−3 |
0 restraints | Δρmin = −0.16 e Å−3 |
C9H12N2O2 | V = 935.87 (5) Å3 |
Mr = 180.21 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 6.3833 (2) Å | µ = 0.09 mm−1 |
b = 4.0755 (1) Å | T = 296 K |
c = 35.9741 (12) Å | 0.46 × 0.33 × 0.10 mm |
β = 90.018 (2)° |
Bruker SMART APEXII CCD area-detector diffractometer | 2150 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 1747 reflections with I > 2σ(I) |
Tmin = 0.959, Tmax = 0.991 | Rint = 0.042 |
15060 measured reflections |
R[F2 > 2σ(F2)] = 0.067 | 0 restraints |
wR(F2) = 0.149 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.14 | Δρmax = 0.21 e Å−3 |
2150 reflections | Δρmin = −0.16 e Å−3 |
131 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | ||
O1 | 0.8895 (2) | 0.9310 (5) | 0.16293 (4) | 0.0486 (5) | |
O2 | 0.5021 (2) | 0.4131 (5) | 0.20181 (5) | 0.0518 (5) | |
N1 | 0.8051 (3) | 0.6119 (5) | 0.22475 (5) | 0.0386 (5) | |
N2 | 0.7875 (3) | 0.4400 (6) | 0.25893 (6) | 0.0424 (5) | |
C1 | 1.1646 (4) | 1.1960 (7) | 0.13257 (7) | 0.0492 (6) | |
H1A | 1.2259 | 1.2295 | 0.1557 | 0.059* | |
C2 | 1.2626 (4) | 1.3059 (7) | 0.10089 (8) | 0.0568 (7) | |
H2A | 1.3912 | 1.4113 | 0.1030 | 0.068* | |
C3 | 1.1765 (5) | 1.2649 (7) | 0.06605 (8) | 0.0581 (7) | |
C4 | 0.9852 (5) | 1.1122 (8) | 0.06415 (7) | 0.0614 (8) | |
H4A | 0.9226 | 1.0843 | 0.0410 | 0.074* | |
C5 | 0.8816 (4) | 0.9975 (7) | 0.09561 (7) | 0.0529 (7) | |
H5A | 0.7514 | 0.8967 | 0.0935 | 0.063* | |
C6 | 0.9740 (3) | 1.0352 (6) | 0.12983 (6) | 0.0407 (5) | |
C7 | 0.7042 (3) | 0.7393 (6) | 0.16147 (6) | 0.0405 (5) | |
H7A | 0.7183 | 0.5731 | 0.1423 | 0.049* | |
H7B | 0.5864 | 0.8784 | 0.1550 | 0.049* | |
C8 | 0.6637 (3) | 0.5776 (6) | 0.19811 (6) | 0.0374 (5) | |
C9 | 1.2895 (6) | 1.3842 (10) | 0.03148 (9) | 0.0890 (11) | |
H9A | 1.3602 | 1.2033 | 0.0199 | 0.133* | |
H9B | 1.3900 | 1.5489 | 0.0383 | 0.133* | |
H9C | 1.1897 | 1.4761 | 0.0144 | 0.133* | |
H1N1 | 0.919 (4) | 0.745 (7) | 0.2202 (7) | 0.058 (8)* | |
H2N2 | 0.712 (5) | 0.572 (8) | 0.2738 (8) | 0.066 (9)* | |
H1N2 | 0.705 (5) | 0.243 (9) | 0.2537 (8) | 0.070 (9)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0452 (9) | 0.0592 (11) | 0.0415 (9) | −0.0185 (8) | 0.0003 (7) | 0.0002 (8) |
O2 | 0.0347 (8) | 0.0604 (11) | 0.0604 (11) | −0.0179 (8) | −0.0005 (7) | 0.0015 (9) |
N1 | 0.0297 (9) | 0.0437 (11) | 0.0424 (10) | −0.0053 (8) | 0.0015 (7) | 0.0008 (9) |
N2 | 0.0350 (10) | 0.0473 (12) | 0.0448 (11) | 0.0032 (9) | 0.0032 (8) | 0.0029 (10) |
C1 | 0.0411 (12) | 0.0547 (15) | 0.0519 (14) | −0.0064 (11) | −0.0038 (10) | 0.0032 (12) |
C2 | 0.0443 (13) | 0.0590 (17) | 0.0671 (18) | −0.0089 (12) | 0.0074 (12) | 0.0027 (14) |
C3 | 0.0676 (17) | 0.0532 (16) | 0.0534 (16) | −0.0053 (14) | 0.0135 (13) | 0.0042 (13) |
C4 | 0.0749 (19) | 0.0663 (19) | 0.0431 (14) | −0.0118 (16) | −0.0020 (13) | 0.0015 (13) |
C5 | 0.0507 (14) | 0.0592 (17) | 0.0487 (14) | −0.0118 (13) | −0.0026 (11) | −0.0002 (12) |
C6 | 0.0405 (11) | 0.0396 (12) | 0.0418 (12) | −0.0001 (10) | 0.0020 (9) | −0.0010 (10) |
C7 | 0.0329 (11) | 0.0430 (13) | 0.0455 (13) | −0.0068 (10) | −0.0008 (9) | −0.0037 (10) |
C8 | 0.0283 (10) | 0.0385 (11) | 0.0453 (12) | 0.0015 (9) | 0.0027 (8) | −0.0053 (10) |
C9 | 0.107 (3) | 0.091 (3) | 0.070 (2) | −0.022 (2) | 0.0300 (19) | 0.010 (2) |
O1—C6 | 1.375 (3) | C3—C4 | 1.372 (4) |
O1—C7 | 1.418 (3) | C3—C9 | 1.518 (4) |
O2—C8 | 1.238 (3) | C4—C5 | 1.392 (4) |
N1—C8 | 1.323 (3) | C4—H4A | 0.9300 |
N1—N2 | 1.420 (3) | C5—C6 | 1.374 (3) |
N1—H1N1 | 0.92 (3) | C5—H5A | 0.9300 |
N2—H2N2 | 0.90 (3) | C7—C8 | 1.496 (3) |
N2—H1N2 | 0.98 (3) | C7—H7A | 0.9700 |
C1—C2 | 1.375 (4) | C7—H7B | 0.9700 |
C1—C6 | 1.385 (3) | C9—H9A | 0.9600 |
C1—H1A | 0.9300 | C9—H9B | 0.9600 |
C2—C3 | 1.378 (4) | C9—H9C | 0.9600 |
C2—H2A | 0.9300 | ||
C6—O1—C7 | 117.73 (17) | C6—C5—H5A | 120.4 |
C8—N1—N2 | 121.39 (19) | C4—C5—H5A | 120.4 |
C8—N1—H1N1 | 118.1 (16) | C5—C6—O1 | 125.0 (2) |
N2—N1—H1N1 | 120.5 (16) | C5—C6—C1 | 119.6 (2) |
N1—N2—H2N2 | 105.3 (19) | O1—C6—C1 | 115.4 (2) |
N1—N2—H1N2 | 106.3 (17) | O1—C7—C8 | 110.74 (17) |
H2N2—N2—H1N2 | 108 (2) | O1—C7—H7A | 109.5 |
C2—C1—C6 | 119.7 (2) | C8—C7—H7A | 109.5 |
C2—C1—H1A | 120.2 | O1—C7—H7B | 109.5 |
C6—C1—H1A | 120.2 | C8—C7—H7B | 109.5 |
C1—C2—C3 | 122.2 (2) | H7A—C7—H7B | 108.1 |
C1—C2—H2A | 118.9 | O2—C8—N1 | 123.2 (2) |
C3—C2—H2A | 118.9 | O2—C8—C7 | 118.52 (19) |
C4—C3—C2 | 117.1 (2) | N1—C8—C7 | 118.25 (19) |
C4—C3—C9 | 121.8 (3) | C3—C9—H9A | 109.5 |
C2—C3—C9 | 121.1 (3) | C3—C9—H9B | 109.5 |
C3—C4—C5 | 122.3 (3) | H9A—C9—H9B | 109.5 |
C3—C4—H4A | 118.8 | C3—C9—H9C | 109.5 |
C5—C4—H4A | 118.8 | H9A—C9—H9C | 109.5 |
C6—C5—C4 | 119.2 (2) | H9B—C9—H9C | 109.5 |
C6—C1—C2—C3 | 0.7 (4) | C7—O1—C6—C1 | −174.4 (2) |
C1—C2—C3—C4 | 0.9 (5) | C2—C1—C6—C5 | −2.3 (4) |
C1—C2—C3—C9 | −179.1 (3) | C2—C1—C6—O1 | 179.2 (2) |
C2—C3—C4—C5 | −0.9 (5) | C6—O1—C7—C8 | 165.76 (19) |
C9—C3—C4—C5 | 179.1 (3) | N2—N1—C8—O2 | 4.7 (3) |
C3—C4—C5—C6 | −0.6 (5) | N2—N1—C8—C7 | −173.8 (2) |
C4—C5—C6—O1 | −179.4 (2) | O1—C7—C8—O2 | 176.8 (2) |
C4—C5—C6—C1 | 2.2 (4) | O1—C7—C8—N1 | −4.6 (3) |
C7—O1—C6—C5 | 7.2 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N1···N2i | 0.92 (3) | 2.17 (3) | 2.982 (3) | 147 (2) |
N2—H2N2···O2ii | 0.90 (3) | 2.14 (3) | 3.022 (3) | 168 (3) |
N2—H1N2···O2iii | 0.98 (3) | 2.47 (3) | 3.166 (3) | 128 (2) |
C1—H1A···O2iv | 0.93 | 2.53 | 3.410 (3) | 157 |
Symmetry codes: (i) −x+2, y+1/2, −z+1/2; (ii) −x+1, y+1/2, −z+1/2; (iii) −x+1, y−1/2, −z+1/2; (iv) x+1, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C9H12N2O2 |
Mr | 180.21 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 6.3833 (2), 4.0755 (1), 35.9741 (12) |
β (°) | 90.018 (2) |
V (Å3) | 935.87 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.46 × 0.33 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.959, 0.991 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15060, 2150, 1747 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.067, 0.149, 1.14 |
No. of reflections | 2150 |
No. of parameters | 131 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.21, −0.16 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N1···N2i | 0.92 (3) | 2.17 (3) | 2.982 (3) | 147 (2) |
N2—H2N2···O2ii | 0.90 (3) | 2.14 (3) | 3.022 (3) | 168 (3) |
N2—H1N2···O2iii | 0.98 (3) | 2.47 (3) | 3.166 (3) | 128 (2) |
C1—H1A···O2iv | 0.93 | 2.53 | 3.410 (3) | 157. |
Symmetry codes: (i) −x+2, y+1/2, −z+1/2; (ii) −x+1, y+1/2, −z+1/2; (iii) −x+1, y−1/2, −z+1/2; (iv) x+1, y+1, z. |
Acknowledgements
HKF and CKQ thank Universiti Sains Malaysia (USM) for the Research University Grant (No. 1001/PFIZIK/811160). CKQ also thanks USM for the award of a USM fellowship. AMI is thankful to the Director of the National Institute of Technology for providing research facilities and also thanks the Board for Research in Nuclear Sciences, Department of Atomic Energy, Government of India, for a Young Scientist Award.
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.
The full therapeutic possibilities of hydrazides were realized after the discovery of isonicotinic acid hydrazide (INH). Hydrazides and their derivatives have been described as useful synthons of various heterocyclic rings (Isloor et al., 2009; Holla & Udupa, 1992). A large number of hydrazides and their derivatives are reported to possess a broad spectrum of biological activities (Ozdemir et al., 2009; Khattab, 2005). The most widely used method to prepare hydrazides is hydrazinolysis of the corresponding esters with hydrazine hydrate (Yale et al., 1953). Prompted by the diverse activities of hydrazides and its derivatives, we have synthesized the title compound to study its crystal structure.
The molecular structure is shown in Fig. 1. The acetohydrazide group (C7/C8/N1/N2/O2) is approximately planar, with the maximum deviation of 0.034 (2) Å at atom C7. Bond lengths and angles are within normal ranges, and comparable to closely related structures (Fun et al., 2009, 2010a,b). In the solid state (Fig. 2), the molecules are linked via intermolecular N2–H1N2···O2, N2–H2N2···O2 and C1–H1A···O2 trifurcated acceptor bonds, together with N1–H1N1···N2 hydrogen bonds, into infinite two-dimensional networks parallel to plane (001).