organic compounds
Butyl 3-oxo-2,3-dihydrobenzo[d][1,2]thiazole-2-carboxylate
aInstitute of Materials and Chemical Engineering, Hainan University, Haikou 570228, People's Republic of China, bInstitute of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, People's Republic of China, cHainan Provincial Fine Chemical Engineering Center, Hainan University, Haikou 570228, People's Republic of China, and dCollege of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571100, People's Republic of China
*Correspondence e-mail: linqianggourp@163.com
The title compound, C12H13NO3S, was synthesised by the reaction of benzo[d]isothiazol-3(2H)-one with butyl alcohol in toluene. The benzoisothiazolone ring system is almost planar with a mean deviation of 0.041 (1) Å. In the crystal, molecules are linked by weak intermolecular C—H⋯O hydrogen bonds.
Related literature
For background to the sythesis of benzoisothiazolone derivatives, see: Davis (1972); Elgazwy & Abdel-Sattar (2003). For the biological activity of 1,2-benzoisothiazolone derivatives, see: Taubert et al. (2002). For structural studies of related alkyl 3-oxo-2,3-dihydro-1,2-benzothiazole-2-carboxylate derivatives, see: Wang et al. (2011a,b); Xu & Yin (2006); Cavalca et al. (1969).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2008); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL and publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S160053681104791X/kp2366sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681104791X/kp2366Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S160053681104791X/kp2366Isup3.cml
A solution (20 mL) containing benzo[d]isothiazol-3(2H)-one (1.51 g, 0.01 mol) was added dropwise to a solution of butyl alcohol (0.74 g, 0.01 mol) and bis(triehloromethyl)carbonate in toluene (20 mL) under stirring on an ice-water bath. The reaction mixture was stirred at room temperature for 4.5 h and refluxed for 5 h to afford the title compound (1.25 g, yield 50%). Single crystals suitable for X-ray measurements were obtained by recrystallisation of the title compound from cyclohexane at room temperature.
The H atoms were placed at calculated positions and refined in riding mode, with the carrier atom–H distances = 0.95 Å for aryl, 0.99Å for methylene, 0.98 Å for the methyl. The Uiso values were constrained to be 1.5Ueq of the
for the methyl H atoms and 1.2Ueq for the remaining H atoms.1,2-benzoisothiazol-3(2H)-ones are a class of compounds with a wide spectrum of biological activities (Davis, 1972, Elgazwy & Abdel-Sattar, 2003). 1,2-Benzoisothiazolone derivatives have been reported to possess high antibacterial and antifungal activities (Taubert et al., 2002). As a part of our ongoing study of the substituent effect on the solid state structures of alkyl 3-oxo-2,3-dihydro-1,2-benzothiazole-2-carboxylate analogues (Wang et al., 2011a,b), herein we report the
of the title compound.In the title molecule (Fig. 1), the benzoisothiazolone ring system is almost planar with a mean deviation of 0.041 (1) Å from the least–squares plane defined by the nine constituent atoms and the C8–O2–C9–C11 torsion angle is -177.04 (12)°. The crystal packing (Fig. 2) is stabilised by weak intermolecular C—H···O hydrogen bonds between CH atoms of phenyl ring and the carbonyl oxygen atoms (Table 1).
For background to the sythesis of benzoisothiazolone derivatives, see: Davis (1972); Elgazwy & Abdel-Sattar (2003). For the biological activity of 1,2-benzoisothiazolone derivatives, see: Taubert et al. (2002). For structural studies of related alkyl 3-oxo-2,3-dihydro-1,2-benzothiazole-2-carboxylate derivatives, see: Wang et al. (2011a,b); Xu & Yin (2006); Cavalca et al. (1969).
Data collection: CrystalClear (Rigaku, 2008); cell
CrystalClear (Rigaku, 2008); data reduction: CrystalClear (Rigaku, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and publCIF (Westrip, 2010).C12H13NO3S | F(000) = 528 |
Mr = 251.29 | Dx = 1.420 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 11.730 (3) Å | Cell parameters from 3724 reflections |
b = 11.925 (3) Å | θ = 2.8–29.1° |
c = 8.443 (2) Å | µ = 0.27 mm−1 |
β = 95.791 (4)° | T = 153 K |
V = 1175.0 (6) Å3 | Prism, colourless |
Z = 4 | 0.62 × 0.36 × 0.10 mm |
Rigaku AFC10/Saturn724+ diffractometer | 3092 independent reflections |
Radiation source: fine-focus sealed tube | 2647 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.028 |
Detector resolution: 28.5714 pixels mm-1 | θmax = 29.1°, θmin = 3.0° |
phi and ω scans | h = −16→15 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −16→16 |
Tmin = 0.851, Tmax = 0.973 | l = −10→11 |
9917 measured 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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.088 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0451P)2 + 0.360P] where P = (Fo2 + 2Fc2)/3 |
3092 reflections | (Δ/σ)max = 0.001 |
155 parameters | Δρmax = 0.37 e Å−3 |
0 restraints | Δρmin = −0.19 e Å−3 |
C12H13NO3S | V = 1175.0 (6) Å3 |
Mr = 251.29 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.730 (3) Å | µ = 0.27 mm−1 |
b = 11.925 (3) Å | T = 153 K |
c = 8.443 (2) Å | 0.62 × 0.36 × 0.10 mm |
β = 95.791 (4)° |
Rigaku AFC10/Saturn724+ diffractometer | 3092 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 2647 reflections with I > 2σ(I) |
Tmin = 0.851, Tmax = 0.973 | Rint = 0.028 |
9917 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.088 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.37 e Å−3 |
3092 reflections | Δρmin = −0.19 e Å−3 |
155 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 | 0.46675 (3) | 0.51858 (3) | 0.70649 (4) | 0.01717 (10) | |
O1 | 0.40826 (8) | 0.82060 (8) | 0.83392 (12) | 0.0214 (2) | |
O2 | 0.25897 (8) | 0.56323 (8) | 0.54771 (12) | 0.0200 (2) | |
O3 | 0.24088 (9) | 0.74791 (8) | 0.59858 (13) | 0.0257 (2) | |
N1 | 0.39346 (9) | 0.64470 (9) | 0.71407 (13) | 0.0174 (2) | |
C1 | 0.56998 (11) | 0.56720 (11) | 0.85277 (15) | 0.0159 (3) | |
C2 | 0.66483 (12) | 0.50761 (11) | 0.92167 (17) | 0.0195 (3) | |
H2 | 0.6789 | 0.4326 | 0.8912 | 0.023* | |
C3 | 0.73755 (12) | 0.56198 (12) | 1.03597 (17) | 0.0235 (3) | |
H3 | 0.8024 | 0.5230 | 1.0848 | 0.028* | |
C4 | 0.71858 (13) | 0.67273 (13) | 1.08206 (18) | 0.0249 (3) | |
H4 | 0.7702 | 0.7075 | 1.1611 | 0.030* | |
C5 | 0.62513 (12) | 0.73131 (12) | 1.01296 (16) | 0.0212 (3) | |
H5 | 0.6122 | 0.8068 | 1.0423 | 0.025* | |
C6 | 0.54993 (11) | 0.67727 (11) | 0.89886 (15) | 0.0163 (3) | |
C7 | 0.44594 (11) | 0.72650 (11) | 0.81747 (15) | 0.0165 (3) | |
C8 | 0.29136 (11) | 0.66070 (11) | 0.61571 (16) | 0.0180 (3) | |
C9 | 0.16309 (12) | 0.57154 (11) | 0.42454 (17) | 0.0203 (3) | |
H9A | 0.1843 | 0.6183 | 0.3352 | 0.024* | |
H9B | 0.0962 | 0.6062 | 0.4681 | 0.024* | |
C10 | 0.13447 (12) | 0.45390 (11) | 0.36782 (17) | 0.0206 (3) | |
H10A | 0.1160 | 0.4074 | 0.4590 | 0.025* | |
H10B | 0.2019 | 0.4204 | 0.3242 | 0.025* | |
C11 | 0.03285 (13) | 0.45355 (13) | 0.23998 (18) | 0.0257 (3) | |
H11A | −0.0345 | 0.4867 | 0.2844 | 0.031* | |
H11B | 0.0513 | 0.5011 | 0.1498 | 0.031* | |
C12 | 0.00234 (15) | 0.33608 (15) | 0.1787 (2) | 0.0366 (4) | |
H12A | 0.0677 | 0.3039 | 0.1310 | 0.044* | |
H12B | −0.0639 | 0.3401 | 0.0983 | 0.044* | |
H12C | −0.0164 | 0.2887 | 0.2674 | 0.044* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.01792 (16) | 0.01312 (15) | 0.01945 (18) | 0.00089 (11) | −0.00322 (12) | −0.00196 (12) |
O1 | 0.0219 (5) | 0.0150 (4) | 0.0263 (5) | 0.0014 (4) | −0.0018 (4) | −0.0037 (4) |
O2 | 0.0185 (5) | 0.0153 (5) | 0.0242 (5) | −0.0012 (4) | −0.0070 (4) | −0.0002 (4) |
O3 | 0.0224 (5) | 0.0175 (5) | 0.0349 (6) | 0.0041 (4) | −0.0082 (4) | −0.0033 (4) |
N1 | 0.0166 (5) | 0.0134 (5) | 0.0212 (6) | 0.0012 (4) | −0.0036 (4) | −0.0016 (4) |
C1 | 0.0160 (6) | 0.0163 (6) | 0.0151 (6) | −0.0025 (5) | 0.0002 (5) | −0.0003 (5) |
C2 | 0.0192 (7) | 0.0177 (6) | 0.0211 (7) | 0.0019 (5) | 0.0001 (5) | 0.0002 (5) |
C3 | 0.0193 (7) | 0.0257 (7) | 0.0240 (7) | 0.0017 (5) | −0.0050 (5) | 0.0014 (6) |
C4 | 0.0226 (7) | 0.0256 (7) | 0.0247 (7) | −0.0031 (6) | −0.0065 (6) | −0.0022 (6) |
C5 | 0.0221 (7) | 0.0185 (6) | 0.0222 (7) | −0.0019 (5) | −0.0012 (5) | −0.0032 (5) |
C6 | 0.0168 (6) | 0.0155 (6) | 0.0163 (6) | −0.0010 (5) | 0.0005 (5) | 0.0002 (5) |
C7 | 0.0171 (6) | 0.0154 (6) | 0.0166 (6) | −0.0021 (5) | 0.0005 (5) | −0.0009 (5) |
C8 | 0.0167 (6) | 0.0166 (6) | 0.0201 (7) | −0.0017 (5) | −0.0012 (5) | 0.0003 (5) |
C9 | 0.0169 (6) | 0.0191 (7) | 0.0232 (7) | −0.0015 (5) | −0.0072 (5) | 0.0007 (5) |
C10 | 0.0183 (6) | 0.0184 (6) | 0.0238 (7) | −0.0032 (5) | −0.0046 (5) | 0.0001 (5) |
C11 | 0.0225 (7) | 0.0278 (8) | 0.0250 (7) | −0.0027 (6) | −0.0068 (6) | −0.0017 (6) |
C12 | 0.0340 (9) | 0.0348 (9) | 0.0383 (9) | −0.0091 (7) | −0.0096 (7) | −0.0082 (7) |
S1—N1 | 1.7368 (12) | C5—C6 | 1.3964 (18) |
S1—C1 | 1.7395 (14) | C5—H5 | 0.9500 |
O1—C7 | 1.2192 (16) | C6—C7 | 1.4614 (18) |
O2—C8 | 1.3346 (16) | C9—C10 | 1.5092 (19) |
O2—C9 | 1.4561 (16) | C9—H9A | 0.9900 |
O3—C8 | 1.1983 (16) | C9—H9B | 0.9900 |
N1—C8 | 1.3998 (17) | C10—C11 | 1.5252 (19) |
N1—C7 | 1.4086 (16) | C10—H10A | 0.9900 |
C1—C6 | 1.3958 (18) | C10—H10B | 0.9900 |
C1—C2 | 1.3967 (19) | C11—C12 | 1.523 (2) |
C2—C3 | 1.383 (2) | C11—H11A | 0.9900 |
C2—H2 | 0.9500 | C11—H11B | 0.9900 |
C3—C4 | 1.401 (2) | C12—H12A | 0.9800 |
C3—H3 | 0.9500 | C12—H12B | 0.9800 |
C4—C5 | 1.379 (2) | C12—H12C | 0.9800 |
C4—H4 | 0.9500 | ||
N1—S1—C1 | 89.82 (6) | O3—C8—N1 | 124.93 (12) |
C8—O2—C9 | 114.44 (10) | O2—C8—N1 | 109.02 (11) |
C8—N1—C7 | 124.58 (11) | O2—C9—C10 | 107.12 (10) |
C8—N1—S1 | 119.55 (9) | O2—C9—H9A | 110.3 |
C7—N1—S1 | 115.82 (9) | C10—C9—H9A | 110.3 |
C6—C1—C2 | 120.79 (12) | O2—C9—H9B | 110.3 |
C6—C1—S1 | 112.75 (10) | C10—C9—H9B | 110.3 |
C2—C1—S1 | 126.47 (11) | H9A—C9—H9B | 108.5 |
C3—C2—C1 | 117.48 (13) | C9—C10—C11 | 111.11 (12) |
C3—C2—H2 | 121.3 | C9—C10—H10A | 109.4 |
C1—C2—H2 | 121.3 | C11—C10—H10A | 109.4 |
C2—C3—C4 | 122.12 (13) | C9—C10—H10B | 109.4 |
C2—C3—H3 | 118.9 | C11—C10—H10B | 109.4 |
C4—C3—H3 | 118.9 | H10A—C10—H10B | 108.0 |
C5—C4—C3 | 120.13 (13) | C12—C11—C10 | 112.52 (13) |
C5—C4—H4 | 119.9 | C12—C11—H11A | 109.1 |
C3—C4—H4 | 119.9 | C10—C11—H11A | 109.1 |
C4—C5—C6 | 118.55 (13) | C12—C11—H11B | 109.1 |
C4—C5—H5 | 120.7 | C10—C11—H11B | 109.1 |
C6—C5—H5 | 120.7 | H11A—C11—H11B | 107.8 |
C1—C6—C5 | 120.93 (12) | C11—C12—H12A | 109.5 |
C1—C6—C7 | 113.75 (12) | C11—C12—H12B | 109.5 |
C5—C6—C7 | 125.32 (12) | H12A—C12—H12B | 109.5 |
O1—C7—N1 | 124.56 (12) | C11—C12—H12C | 109.5 |
O1—C7—C6 | 127.68 (12) | H12A—C12—H12C | 109.5 |
N1—C7—C6 | 107.76 (11) | H12B—C12—H12C | 109.5 |
O3—C8—O2 | 126.03 (12) | ||
C1—S1—N1—C8 | −179.43 (11) | S1—N1—C7—O1 | 177.71 (11) |
C1—S1—N1—C7 | 3.08 (10) | C8—N1—C7—C6 | 179.85 (12) |
N1—S1—C1—C6 | −2.42 (10) | S1—N1—C7—C6 | −2.81 (14) |
N1—S1—C1—C2 | 177.76 (13) | C1—C6—C7—O1 | −179.65 (13) |
C6—C1—C2—C3 | −0.2 (2) | C5—C6—C7—O1 | 0.4 (2) |
S1—C1—C2—C3 | 179.58 (11) | C1—C6—C7—N1 | 0.89 (16) |
C1—C2—C3—C4 | −0.3 (2) | C5—C6—C7—N1 | −179.04 (13) |
C2—C3—C4—C5 | −0.1 (2) | C9—O2—C8—O3 | 9.8 (2) |
C3—C4—C5—C6 | 0.9 (2) | C9—O2—C8—N1 | −171.42 (11) |
C2—C1—C6—C5 | 1.1 (2) | C7—N1—C8—O3 | 5.8 (2) |
S1—C1—C6—C5 | −178.74 (11) | S1—N1—C8—O3 | −171.40 (12) |
C2—C1—C6—C7 | −178.84 (12) | C7—N1—C8—O2 | −172.92 (12) |
S1—C1—C6—C7 | 1.32 (15) | S1—N1—C8—O2 | 9.83 (15) |
C4—C5—C6—C1 | −1.4 (2) | C8—O2—C9—C10 | −177.04 (12) |
C4—C5—C6—C7 | 178.51 (13) | O2—C9—C10—C11 | 178.90 (12) |
C8—N1—C7—O1 | 0.4 (2) | C9—C10—C11—C12 | 179.42 (13) |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O1i | 0.95 | 2.46 | 3.1610 (19) | 131 |
C2—H2···O3i | 0.95 | 2.39 | 3.2987 (18) | 159 |
Symmetry code: (i) −x+1, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C12H13NO3S |
Mr | 251.29 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 153 |
a, b, c (Å) | 11.730 (3), 11.925 (3), 8.443 (2) |
β (°) | 95.791 (4) |
V (Å3) | 1175.0 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.27 |
Crystal size (mm) | 0.62 × 0.36 × 0.10 |
Data collection | |
Diffractometer | Rigaku AFC10/Saturn724+ |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.851, 0.973 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9917, 3092, 2647 |
Rint | 0.028 |
(sin θ/λ)max (Å−1) | 0.685 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.088, 1.00 |
No. of reflections | 3092 |
No. of parameters | 155 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.37, −0.19 |
Computer programs: CrystalClear (Rigaku, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O1i | 0.95 | 2.46 | 3.1610 (19) | 131 |
C2—H2···O3i | 0.95 | 2.39 | 3.2987 (18) | 159 |
Symmetry code: (i) −x+1, y−1/2, −z+3/2. |
Acknowledgements
This work was supported by the National Natural Science Foundation of China (No. 20962007) and the Creative Talents Plan of Hainan University 211 Project.
References
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1,2-benzoisothiazol-3(2H)-ones are a class of compounds with a wide spectrum of biological activities (Davis, 1972, Elgazwy & Abdel-Sattar, 2003). 1,2-Benzoisothiazolone derivatives have been reported to possess high antibacterial and antifungal activities (Taubert et al., 2002). As a part of our ongoing study of the substituent effect on the solid state structures of alkyl 3-oxo-2,3-dihydro-1,2-benzothiazole-2-carboxylate analogues (Wang et al., 2011a,b), herein we report the crystal structure of the title compound.
In the title molecule (Fig. 1), the benzoisothiazolone ring system is almost planar with a mean deviation of 0.041 (1) Å from the least–squares plane defined by the nine constituent atoms and the C8–O2–C9–C11 torsion angle is -177.04 (12)°. The crystal packing (Fig. 2) is stabilised by weak intermolecular C—H···O hydrogen bonds between CH atoms of phenyl ring and the carbonyl oxygen atoms (Table 1).