organic compounds
1′-Ethylsulfanyl-1,1′-bicyclohexyl-2-one
aDepartment of Chemistry, University of Kentucky, Lexington, KY 40506, USA, and bDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, USA
*Correspondence e-mail: gelli3@email.uky.edu
There are two independent molecules in the 14H24OS, in which both cyclohexane rings exhibit chair conformations. They are also equatorial to each other, which permits the ethanethiol substituent to be in a syn conformation with the α-H atom of the parent attached cyclohexanone.
of the title cyclohexanone derivative, CRelated literature
For background literature on the synthesis, see Bach & Klix (1985); Trost et al. (1976); Reetz & Giannis (1981). For the preparation of the starting materials, see: Ito et al. (1979); Kumar & Dev (1983).
Experimental
Crystal data
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Data collection: COLLECT (Nonius, 1998); cell SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO-SMN (Otwinowski & Minor, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97and local procedures.
Supporting information
10.1107/S1600536810010731/ng2746sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810010731/ng2746Isup2.hkl
SnCl4 (10 ml, 1M in CH2Cl2, 10 mmol) was added to 20 ml of anhydrous CH2Cl2 at –60°C. A cooled (–60°C) solution of 1,1-bis(ethylsulfanyl)cyclohexane (2.04 g, 10 mmol) in 5 ml anhydrous CH2Cl2 was added dropwise. Immediately following the final addition of 1,1-bis(ethylsulfanyl)cyclohexane was slowly added a cooled (–60°C) solution of 1-trimethylsilyloxycyclohexene (1.70 g , 10 mmol) in 5 ml anhydrous CH2Cl2. The solution stirred at –60°C for 45 min and was poured on to 100 ml of ice water. The aqueous phase was extracted with CH2Cl2(3 X 50 ml). The combined organic phases were washed with 10% aqueous NaHCO3 (1 X 100 ml), water (1 X 100 ml) and dried over MgSO4. The filtrate was concentrated under reduced pressure providing the title compound (2.05 g) as a white solid. Recrystallization from a solution of hexane–CH2Cl2 (3:1) provided 1.90 g (79% yield) of 1'-(ethylsulfanyl)-1,1'-bi(cyclohexyl)-2-one. mp = 72°C. 1H NMR (CDCl3, 500 MHz) δ : 2.58–2.52 (m,1H); 2.47 (dd, J=11.7, 5 Hz, 1H); 2.37 (dq, J=7.3, 1 Hz, 2H); 2.34–2.24 (m, 2H); 2.06–1.88 (m, 4H); 1.84–1.74 (m, 1H); 1.74–1.56 (m, 6H); 1.56–1.48 (m, 1H); 1.48–1.40 (m, 2H); 1.32–1.22 (m, 1H); 1.22–1.16 (dt, J=7.5, 1.5 Hz, 3H). 13C NMR (CDCl3, 125 MHz) δ: 212.2, 58.5, 52.2, 44.3, 32.6, 31.4, 29.9, 28.6, 25.9, 25.7, 22.0, 21.9, 21.1, 14.1. IR (νmax): 2931, 1697, 1500, 1310, 1115, 1063, 884 cm-1.
1,1-bis(ethylsulfanyl)cyclohexane was prepared by following the procedure of Kumar & Dev (1983) and 1-trimethylsilyloxycyclohexene was prepared by following the procedure of Ito et al. (1979).
H atoms were found in difference Fourier maps and subsequently placed in idealized positions with constrained distances of 0.98 Å (RCH3), 0.99 Å (R2CH2), 1.00 Å (R3CH), and with Uiso(H) values set to either 1.2Ueq or 1.5Ueq (RCH3) of the attached atom.
Data collection: COLLECT (Nonius, 1998); cell
SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO-SMN (Otwinowski & Minor, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and local procedures.C14H24OS | Z = 4 |
Mr = 240.39 | F(000) = 528 |
Triclinic, P1 | Dx = 1.222 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.3662 (2) Å | Cell parameters from 5942 reflections |
b = 11.2090 (2) Å | θ = 1.0–27.4° |
c = 11.5026 (2) Å | µ = 0.23 mm−1 |
α = 92.5786 (8)° | T = 90 K |
β = 101.7513 (8)° | Rod, colourless |
γ = 90.2145 (8)° | 0.18 × 0.15 × 0.10 mm |
V = 1307.09 (4) Å3 |
Nonius KappaCCD diffractometer | 5986 independent reflections |
Radiation source: fine-focus sealed tube | 5000 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.037 |
Detector resolution: 9.1 pixels mm-1 | θmax = 27.5°, θmin = 1.8° |
ω scans at fixed χ = 55° | h = −13→13 |
Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997) | k = −14→14 |
Tmin = 0.960, Tmax = 0.978 | l = −14→14 |
32350 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)] = 0.034 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.092 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0458P)2 + 0.4279P] where P = (Fo2 + 2Fc2)/3 |
5986 reflections | (Δ/σ)max = 0.002 |
291 parameters | Δρmax = 0.40 e Å−3 |
0 restraints | Δρmin = −0.34 e Å−3 |
C14H24OS | γ = 90.2145 (8)° |
Mr = 240.39 | V = 1307.09 (4) Å3 |
Triclinic, P1 | Z = 4 |
a = 10.3662 (2) Å | Mo Kα radiation |
b = 11.2090 (2) Å | µ = 0.23 mm−1 |
c = 11.5026 (2) Å | T = 90 K |
α = 92.5786 (8)° | 0.18 × 0.15 × 0.10 mm |
β = 101.7513 (8)° |
Nonius KappaCCD diffractometer | 5986 independent reflections |
Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997) | 5000 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.978 | Rint = 0.037 |
32350 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 0 restraints |
wR(F2) = 0.092 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.40 e Å−3 |
5986 reflections | Δρmin = −0.34 e Å−3 |
291 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 > 2σ(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 | ||
S1A | 0.88224 (3) | 0.94850 (3) | 0.30582 (3) | 0.01526 (9) | |
O1A | 0.53397 (9) | 0.80151 (9) | −0.01038 (8) | 0.0194 (2) | |
C1A | 0.72797 (12) | 0.89244 (11) | 0.20595 (11) | 0.0130 (2) | |
C2A | 0.68219 (13) | 0.77443 (11) | 0.24908 (11) | 0.0152 (3) | |
H2A1 | 0.6038 | 0.7436 | 0.1911 | 0.018* | |
H2A2 | 0.7529 | 0.7150 | 0.2511 | 0.018* | |
C3A | 0.64777 (14) | 0.78678 (12) | 0.37204 (12) | 0.0182 (3) | |
H3A1 | 0.7281 | 0.8086 | 0.4321 | 0.022* | |
H3A2 | 0.6142 | 0.7092 | 0.3924 | 0.022* | |
C4A | 0.54321 (14) | 0.88253 (12) | 0.37498 (12) | 0.0195 (3) | |
H4A1 | 0.4601 | 0.8572 | 0.3203 | 0.023* | |
H4A2 | 0.5255 | 0.8920 | 0.4563 | 0.023* | |
C5A | 0.59008 (13) | 1.00195 (12) | 0.33805 (12) | 0.0172 (3) | |
H5A1 | 0.6682 | 1.0309 | 0.3974 | 0.021* | |
H5A2 | 0.5196 | 1.0616 | 0.3367 | 0.021* | |
C6A | 0.62570 (13) | 0.99037 (12) | 0.21515 (11) | 0.0154 (3) | |
H6A1 | 0.6612 | 1.0679 | 0.1970 | 0.019* | |
H6A2 | 0.5446 | 0.9720 | 0.1547 | 0.019* | |
C7A | 0.75555 (12) | 0.87558 (11) | 0.07876 (11) | 0.0132 (2) | |
H7A | 0.8342 | 0.8230 | 0.0853 | 0.016* | |
C8A | 0.64834 (13) | 0.81697 (11) | −0.01800 (11) | 0.0153 (3) | |
C9A | 0.69592 (14) | 0.78561 (12) | −0.13183 (12) | 0.0188 (3) | |
H9A1 | 0.6224 | 0.7492 | −0.1917 | 0.023* | |
H9A2 | 0.7671 | 0.7263 | −0.1158 | 0.023* | |
C10A | 0.74760 (13) | 0.89752 (12) | −0.18129 (12) | 0.0176 (3) | |
H10A | 0.7887 | 0.8737 | −0.2492 | 0.021* | |
H10B | 0.6731 | 0.9506 | −0.2105 | 0.021* | |
C11A | 0.84846 (13) | 0.96463 (12) | −0.08583 (11) | 0.0162 (3) | |
H11A | 0.8741 | 1.0401 | −0.1171 | 0.019* | |
H11B | 0.9284 | 0.9157 | −0.0647 | 0.019* | |
C12A | 0.79214 (13) | 0.99232 (11) | 0.02493 (12) | 0.0155 (3) | |
H12A | 0.7127 | 1.0419 | 0.0039 | 0.019* | |
H12B | 0.8580 | 1.0384 | 0.0847 | 0.019* | |
C13A | 0.99018 (13) | 0.82077 (12) | 0.31977 (12) | 0.0166 (3) | |
H13A | 0.9536 | 0.7569 | 0.3608 | 0.020* | |
H13B | 0.9986 | 0.7887 | 0.2401 | 0.020* | |
C14A | 1.12463 (13) | 0.86198 (13) | 0.39135 (12) | 0.0199 (3) | |
H14A | 1.1623 | 0.9216 | 0.3477 | 0.030* | |
H14B | 1.1834 | 0.7934 | 0.4040 | 0.030* | |
H14C | 1.1145 | 0.8974 | 0.4684 | 0.030* | |
S1B | 0.75895 (3) | 0.44991 (3) | 0.30868 (3) | 0.01604 (9) | |
O1B | 0.96037 (9) | 0.30177 (9) | −0.00856 (8) | 0.0195 (2) | |
C1B | 0.86605 (12) | 0.39287 (11) | 0.20787 (11) | 0.0134 (2) | |
C2B | 0.92957 (13) | 0.27433 (11) | 0.25006 (11) | 0.0155 (3) | |
H2B1 | 0.8590 | 0.2149 | 0.2513 | 0.019* | |
H2B2 | 0.9818 | 0.2439 | 0.1922 | 0.019* | |
C3B | 1.01917 (14) | 0.28581 (12) | 0.37345 (11) | 0.0181 (3) | |
H3B1 | 1.0607 | 0.2080 | 0.3936 | 0.022* | |
H3B2 | 0.9659 | 0.3077 | 0.4333 | 0.022* | |
C4B | 1.12643 (14) | 0.38092 (12) | 0.37728 (12) | 0.0198 (3) | |
H4B1 | 1.1803 | 0.3900 | 0.4588 | 0.024* | |
H4B2 | 1.1851 | 0.3552 | 0.3231 | 0.024* | |
C5B | 1.06533 (13) | 0.50073 (12) | 0.34018 (12) | 0.0171 (3) | |
H5B1 | 1.1364 | 0.5597 | 0.3390 | 0.020* | |
H5B2 | 1.0144 | 0.5303 | 0.3994 | 0.020* | |
C6B | 0.97415 (13) | 0.49000 (11) | 0.21687 (11) | 0.0153 (3) | |
H6B1 | 1.0276 | 0.4710 | 0.1565 | 0.018* | |
H6B2 | 0.9318 | 0.5679 | 0.1988 | 0.018* | |
C7B | 0.78001 (12) | 0.37651 (11) | 0.08113 (11) | 0.0137 (3) | |
H7B | 0.7038 | 0.3242 | 0.0880 | 0.016* | |
C8B | 0.84277 (13) | 0.31733 (11) | −0.01577 (11) | 0.0157 (3) | |
C9B | 0.74329 (14) | 0.28622 (12) | −0.12940 (12) | 0.0189 (3) | |
H9B1 | 0.6784 | 0.2275 | −0.1132 | 0.023* | |
H9B2 | 0.7891 | 0.2492 | −0.1892 | 0.023* | |
C10B | 0.67096 (13) | 0.39844 (12) | −0.17934 (12) | 0.0181 (3) | |
H10C | 0.7332 | 0.4512 | −0.2084 | 0.022* | |
H10D | 0.5991 | 0.3749 | −0.2474 | 0.022* | |
C11B | 0.61377 (13) | 0.46594 (12) | −0.08390 (12) | 0.0167 (3) | |
H11C | 0.5427 | 0.4173 | −0.0628 | 0.020* | |
H11D | 0.5749 | 0.5415 | −0.1153 | 0.020* | |
C12B | 0.72028 (13) | 0.49357 (11) | 0.02716 (12) | 0.0155 (3) | |
H12C | 0.6817 | 0.5397 | 0.0868 | 0.019* | |
H12D | 0.7908 | 0.5430 | 0.0063 | 0.019* | |
C13B | 0.65969 (14) | 0.32216 (12) | 0.32900 (12) | 0.0196 (3) | |
H13C | 0.6113 | 0.2890 | 0.2510 | 0.024* | |
H13D | 0.7167 | 0.2591 | 0.3687 | 0.024* | |
C14B | 0.56281 (15) | 0.36372 (14) | 0.40545 (14) | 0.0266 (3) | |
H14D | 0.6116 | 0.3972 | 0.4820 | 0.040* | |
H14E | 0.5088 | 0.2957 | 0.4188 | 0.040* | |
H14F | 0.5057 | 0.4250 | 0.3647 | 0.040* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1A | 0.01464 (16) | 0.01284 (16) | 0.01680 (16) | 0.00131 (12) | 0.00018 (12) | −0.00173 (12) |
O1A | 0.0168 (5) | 0.0218 (5) | 0.0189 (5) | −0.0030 (4) | 0.0018 (4) | 0.0022 (4) |
C1A | 0.0126 (6) | 0.0127 (6) | 0.0129 (6) | 0.0011 (5) | 0.0008 (5) | 0.0005 (5) |
C2A | 0.0170 (6) | 0.0128 (6) | 0.0156 (6) | 0.0005 (5) | 0.0029 (5) | 0.0005 (5) |
C3A | 0.0226 (7) | 0.0164 (7) | 0.0162 (6) | −0.0002 (5) | 0.0050 (5) | 0.0020 (5) |
C4A | 0.0203 (7) | 0.0219 (7) | 0.0175 (7) | 0.0018 (5) | 0.0070 (5) | 0.0008 (5) |
C5A | 0.0163 (6) | 0.0177 (7) | 0.0172 (6) | 0.0035 (5) | 0.0029 (5) | −0.0024 (5) |
C6A | 0.0156 (6) | 0.0135 (6) | 0.0168 (6) | 0.0017 (5) | 0.0026 (5) | 0.0008 (5) |
C7A | 0.0126 (6) | 0.0119 (6) | 0.0149 (6) | 0.0008 (5) | 0.0024 (5) | 0.0004 (5) |
C8A | 0.0189 (7) | 0.0112 (6) | 0.0153 (6) | −0.0001 (5) | 0.0014 (5) | 0.0028 (5) |
C9A | 0.0212 (7) | 0.0196 (7) | 0.0148 (6) | −0.0035 (5) | 0.0023 (5) | −0.0020 (5) |
C10A | 0.0183 (7) | 0.0191 (7) | 0.0155 (6) | 0.0004 (5) | 0.0033 (5) | 0.0024 (5) |
C11A | 0.0162 (6) | 0.0155 (6) | 0.0177 (6) | −0.0002 (5) | 0.0052 (5) | 0.0021 (5) |
C12A | 0.0164 (6) | 0.0130 (6) | 0.0174 (6) | −0.0002 (5) | 0.0040 (5) | 0.0008 (5) |
C13A | 0.0161 (6) | 0.0156 (6) | 0.0171 (6) | 0.0033 (5) | 0.0012 (5) | 0.0000 (5) |
C14A | 0.0169 (7) | 0.0240 (7) | 0.0180 (7) | 0.0032 (5) | 0.0018 (5) | −0.0006 (5) |
S1B | 0.02009 (17) | 0.01311 (16) | 0.01656 (17) | −0.00010 (12) | 0.00800 (13) | −0.00127 (12) |
O1B | 0.0182 (5) | 0.0221 (5) | 0.0192 (5) | 0.0057 (4) | 0.0060 (4) | 0.0018 (4) |
C1B | 0.0152 (6) | 0.0118 (6) | 0.0137 (6) | 0.0008 (5) | 0.0047 (5) | −0.0004 (5) |
C2B | 0.0192 (6) | 0.0124 (6) | 0.0151 (6) | 0.0011 (5) | 0.0038 (5) | 0.0001 (5) |
C3B | 0.0235 (7) | 0.0156 (7) | 0.0143 (6) | 0.0038 (5) | 0.0018 (5) | 0.0014 (5) |
C4B | 0.0202 (7) | 0.0211 (7) | 0.0168 (6) | 0.0026 (5) | 0.0011 (5) | −0.0012 (5) |
C5B | 0.0183 (7) | 0.0156 (6) | 0.0168 (6) | −0.0022 (5) | 0.0031 (5) | −0.0021 (5) |
C6B | 0.0174 (6) | 0.0128 (6) | 0.0162 (6) | −0.0008 (5) | 0.0046 (5) | 0.0006 (5) |
C7B | 0.0151 (6) | 0.0118 (6) | 0.0147 (6) | 0.0006 (5) | 0.0040 (5) | 0.0002 (5) |
C8B | 0.0192 (7) | 0.0118 (6) | 0.0168 (6) | 0.0032 (5) | 0.0054 (5) | 0.0017 (5) |
C9B | 0.0210 (7) | 0.0203 (7) | 0.0151 (6) | 0.0044 (5) | 0.0037 (5) | −0.0028 (5) |
C10B | 0.0187 (7) | 0.0207 (7) | 0.0145 (6) | 0.0010 (5) | 0.0023 (5) | 0.0022 (5) |
C11B | 0.0158 (6) | 0.0154 (6) | 0.0184 (6) | 0.0018 (5) | 0.0018 (5) | 0.0025 (5) |
C12B | 0.0165 (6) | 0.0122 (6) | 0.0178 (6) | 0.0020 (5) | 0.0034 (5) | 0.0010 (5) |
C13B | 0.0213 (7) | 0.0183 (7) | 0.0210 (7) | −0.0022 (5) | 0.0083 (6) | 0.0015 (5) |
C14B | 0.0274 (8) | 0.0280 (8) | 0.0282 (8) | −0.0014 (6) | 0.0146 (6) | 0.0004 (6) |
S1A—C13A | 1.8130 (13) | S1B—C13B | 1.8113 (14) |
S1A—C1A | 1.8577 (13) | S1B—C1B | 1.8571 (13) |
O1A—C8A | 1.2189 (16) | O1B—C8B | 1.2186 (16) |
C1A—C2A | 1.5399 (17) | C1B—C2B | 1.5392 (17) |
C1A—C6A | 1.5440 (17) | C1B—C6B | 1.5444 (17) |
C1A—C7A | 1.5504 (17) | C1B—C7B | 1.5490 (17) |
C2A—C3A | 1.5281 (17) | C2B—C3B | 1.5295 (18) |
C2A—H2A1 | 0.9900 | C2B—H2B1 | 0.9900 |
C2A—H2A2 | 0.9900 | C2B—H2B2 | 0.9900 |
C3A—C4A | 1.5324 (19) | C3B—C4B | 1.5303 (19) |
C3A—H3A1 | 0.9900 | C3B—H3B1 | 0.9900 |
C3A—H3A2 | 0.9900 | C3B—H3B2 | 0.9900 |
C4A—C5A | 1.5293 (19) | C4B—C5B | 1.5279 (19) |
C4A—H4A1 | 0.9900 | C4B—H4B1 | 0.9900 |
C4A—H4A2 | 0.9900 | C4B—H4B2 | 0.9900 |
C5A—C6A | 1.5323 (18) | C5B—C6B | 1.5354 (18) |
C5A—H5A1 | 0.9900 | C5B—H5B1 | 0.9900 |
C5A—H5A2 | 0.9900 | C5B—H5B2 | 0.9900 |
C6A—H6A1 | 0.9900 | C6B—H6B1 | 0.9900 |
C6A—H6A2 | 0.9900 | C6B—H6B2 | 0.9900 |
C7A—C8A | 1.5265 (17) | C7B—C8B | 1.5290 (17) |
C7A—C12A | 1.5507 (17) | C7B—C12B | 1.5535 (17) |
C7A—H7A | 1.0000 | C7B—H7B | 1.0000 |
C8A—C9A | 1.5179 (18) | C8B—C9B | 1.5168 (18) |
C9A—C10A | 1.5387 (18) | C9B—C10B | 1.5398 (18) |
C9A—H9A1 | 0.9900 | C9B—H9B1 | 0.9900 |
C9A—H9A2 | 0.9900 | C9B—H9B2 | 0.9900 |
C10A—C11A | 1.5221 (18) | C10B—C11B | 1.5242 (18) |
C10A—H10A | 0.9900 | C10B—H10C | 0.9900 |
C10A—H10B | 0.9900 | C10B—H10D | 0.9900 |
C11A—C12A | 1.5262 (17) | C11B—C12B | 1.5278 (18) |
C11A—H11A | 0.9900 | C11B—H11C | 0.9900 |
C11A—H11B | 0.9900 | C11B—H11D | 0.9900 |
C12A—H12A | 0.9900 | C12B—H12C | 0.9900 |
C12A—H12B | 0.9900 | C12B—H12D | 0.9900 |
C13A—C14A | 1.5256 (19) | C13B—C14B | 1.5249 (19) |
C13A—H13A | 0.9900 | C13B—H13C | 0.9900 |
C13A—H13B | 0.9900 | C13B—H13D | 0.9900 |
C14A—H14A | 0.9800 | C14B—H14D | 0.9800 |
C14A—H14B | 0.9800 | C14B—H14E | 0.9800 |
C14A—H14C | 0.9800 | C14B—H14F | 0.9800 |
C13A—S1A—C1A | 104.36 (6) | C13B—S1B—C1B | 104.78 (6) |
C2A—C1A—C6A | 109.67 (10) | C2B—C1B—C6B | 109.61 (10) |
C2A—C1A—C7A | 111.20 (10) | C2B—C1B—C7B | 111.00 (10) |
C6A—C1A—C7A | 112.51 (10) | C6B—C1B—C7B | 112.67 (10) |
C2A—C1A—S1A | 110.62 (8) | C2B—C1B—S1B | 110.81 (8) |
C6A—C1A—S1A | 104.83 (8) | C6B—C1B—S1B | 104.68 (8) |
C7A—C1A—S1A | 107.81 (8) | C7B—C1B—S1B | 107.89 (8) |
C3A—C2A—C1A | 113.55 (10) | C3B—C2B—C1B | 113.36 (10) |
C3A—C2A—H2A1 | 108.9 | C3B—C2B—H2B1 | 108.9 |
C1A—C2A—H2A1 | 108.9 | C1B—C2B—H2B1 | 108.9 |
C3A—C2A—H2A2 | 108.9 | C3B—C2B—H2B2 | 108.9 |
C1A—C2A—H2A2 | 108.9 | C1B—C2B—H2B2 | 108.9 |
H2A1—C2A—H2A2 | 107.7 | H2B1—C2B—H2B2 | 107.7 |
C2A—C3A—C4A | 110.79 (11) | C2B—C3B—C4B | 110.77 (11) |
C2A—C3A—H3A1 | 109.5 | C2B—C3B—H3B1 | 109.5 |
C4A—C3A—H3A1 | 109.5 | C4B—C3B—H3B1 | 109.5 |
C2A—C3A—H3A2 | 109.5 | C2B—C3B—H3B2 | 109.5 |
C4A—C3A—H3A2 | 109.5 | C4B—C3B—H3B2 | 109.5 |
H3A1—C3A—H3A2 | 108.1 | H3B1—C3B—H3B2 | 108.1 |
C5A—C4A—C3A | 110.49 (11) | C5B—C4B—C3B | 110.68 (11) |
C5A—C4A—H4A1 | 109.6 | C5B—C4B—H4B1 | 109.5 |
C3A—C4A—H4A1 | 109.6 | C3B—C4B—H4B1 | 109.5 |
C5A—C4A—H4A2 | 109.6 | C5B—C4B—H4B2 | 109.5 |
C3A—C4A—H4A2 | 109.6 | C3B—C4B—H4B2 | 109.5 |
H4A1—C4A—H4A2 | 108.1 | H4B1—C4B—H4B2 | 108.1 |
C4A—C5A—C6A | 111.50 (11) | C4B—C5B—C6B | 111.64 (11) |
C4A—C5A—H5A1 | 109.3 | C4B—C5B—H5B1 | 109.3 |
C6A—C5A—H5A1 | 109.3 | C6B—C5B—H5B1 | 109.3 |
C4A—C5A—H5A2 | 109.3 | C4B—C5B—H5B2 | 109.3 |
C6A—C5A—H5A2 | 109.3 | C6B—C5B—H5B2 | 109.3 |
H5A1—C5A—H5A2 | 108.0 | H5B1—C5B—H5B2 | 108.0 |
C5A—C6A—C1A | 113.11 (10) | C5B—C6B—C1B | 112.80 (10) |
C5A—C6A—H6A1 | 109.0 | C5B—C6B—H6B1 | 109.0 |
C1A—C6A—H6A1 | 109.0 | C1B—C6B—H6B1 | 109.0 |
C5A—C6A—H6A2 | 109.0 | C5B—C6B—H6B2 | 109.0 |
C1A—C6A—H6A2 | 109.0 | C1B—C6B—H6B2 | 109.0 |
H6A1—C6A—H6A2 | 107.8 | H6B1—C6B—H6B2 | 107.8 |
C8A—C7A—C1A | 118.12 (10) | C8B—C7B—C1B | 117.75 (10) |
C8A—C7A—C12A | 104.50 (10) | C8B—C7B—C12B | 104.56 (10) |
C1A—C7A—C12A | 114.47 (10) | C1B—C7B—C12B | 114.68 (10) |
C8A—C7A—H7A | 106.3 | C8B—C7B—H7B | 106.4 |
C1A—C7A—H7A | 106.3 | C1B—C7B—H7B | 106.4 |
C12A—C7A—H7A | 106.3 | C12B—C7B—H7B | 106.4 |
O1A—C8A—C9A | 121.75 (12) | O1B—C8B—C9B | 121.68 (12) |
O1A—C8A—C7A | 125.31 (12) | O1B—C8B—C7B | 125.40 (12) |
C9A—C8A—C7A | 112.83 (11) | C9B—C8B—C7B | 112.78 (11) |
C8A—C9A—C10A | 110.85 (11) | C8B—C9B—C10B | 110.92 (11) |
C8A—C9A—H9A1 | 109.5 | C8B—C9B—H9B1 | 109.5 |
C10A—C9A—H9A1 | 109.5 | C10B—C9B—H9B1 | 109.5 |
C8A—C9A—H9A2 | 109.5 | C8B—C9B—H9B2 | 109.5 |
C10A—C9A—H9A2 | 109.5 | C10B—C9B—H9B2 | 109.5 |
H9A1—C9A—H9A2 | 108.1 | H9B1—C9B—H9B2 | 108.0 |
C11A—C10A—C9A | 110.79 (11) | C11B—C10B—C9B | 110.61 (11) |
C11A—C10A—H10A | 109.5 | C11B—C10B—H10C | 109.5 |
C9A—C10A—H10A | 109.5 | C9B—C10B—H10C | 109.5 |
C11A—C10A—H10B | 109.5 | C11B—C10B—H10D | 109.5 |
C9A—C10A—H10B | 109.5 | C9B—C10B—H10D | 109.5 |
H10A—C10A—H10B | 108.1 | H10C—C10B—H10D | 108.1 |
C10A—C11A—C12A | 110.75 (11) | C10B—C11B—C12B | 110.84 (11) |
C10A—C11A—H11A | 109.5 | C10B—C11B—H11C | 109.5 |
C12A—C11A—H11A | 109.5 | C12B—C11B—H11C | 109.5 |
C10A—C11A—H11B | 109.5 | C10B—C11B—H11D | 109.5 |
C12A—C11A—H11B | 109.5 | C12B—C11B—H11D | 109.5 |
H11A—C11A—H11B | 108.1 | H11C—C11B—H11D | 108.1 |
C11A—C12A—C7A | 110.79 (10) | C11B—C12B—C7B | 110.76 (10) |
C11A—C12A—H12A | 109.5 | C11B—C12B—H12C | 109.5 |
C7A—C12A—H12A | 109.5 | C7B—C12B—H12C | 109.5 |
C11A—C12A—H12B | 109.5 | C11B—C12B—H12D | 109.5 |
C7A—C12A—H12B | 109.5 | C7B—C12B—H12D | 109.5 |
H12A—C12A—H12B | 108.1 | H12C—C12B—H12D | 108.1 |
C14A—C13A—S1A | 107.95 (9) | C14B—C13B—S1B | 107.97 (10) |
C14A—C13A—H13A | 110.1 | C14B—C13B—H13C | 110.1 |
S1A—C13A—H13A | 110.1 | S1B—C13B—H13C | 110.1 |
C14A—C13A—H13B | 110.1 | C14B—C13B—H13D | 110.1 |
S1A—C13A—H13B | 110.1 | S1B—C13B—H13D | 110.1 |
H13A—C13A—H13B | 108.4 | H13C—C13B—H13D | 108.4 |
C13A—C14A—H14A | 109.5 | C13B—C14B—H14D | 109.5 |
C13A—C14A—H14B | 109.5 | C13B—C14B—H14E | 109.5 |
H14A—C14A—H14B | 109.5 | H14D—C14B—H14E | 109.5 |
C13A—C14A—H14C | 109.5 | C13B—C14B—H14F | 109.5 |
H14A—C14A—H14C | 109.5 | H14D—C14B—H14F | 109.5 |
H14B—C14A—H14C | 109.5 | H14E—C14B—H14F | 109.5 |
C13A—S1A—C1A—C2A | 49.82 (10) | C13B—S1B—C1B—C2B | −47.41 (10) |
C13A—S1A—C1A—C6A | 167.97 (8) | C13B—S1B—C1B—C6B | −165.49 (8) |
C13A—S1A—C1A—C7A | −71.97 (9) | C13B—S1B—C1B—C7B | 74.30 (10) |
C6A—C1A—C2A—C3A | −52.42 (14) | C6B—C1B—C2B—C3B | 53.18 (14) |
C7A—C1A—C2A—C3A | −177.51 (11) | C7B—C1B—C2B—C3B | 178.28 (11) |
S1A—C1A—C2A—C3A | 62.73 (12) | S1B—C1B—C2B—C3B | −61.86 (13) |
C1A—C2A—C3A—C4A | 55.83 (15) | C1B—C2B—C3B—C4B | −56.10 (14) |
C2A—C3A—C4A—C5A | −56.44 (15) | C2B—C3B—C4B—C5B | 56.19 (14) |
C3A—C4A—C5A—C6A | 56.25 (14) | C3B—C4B—C5B—C6B | −55.90 (15) |
C4A—C5A—C6A—C1A | −54.81 (15) | C4B—C5B—C6B—C1B | 54.72 (15) |
C2A—C1A—C6A—C5A | 51.57 (14) | C2B—C1B—C6B—C5B | −52.08 (14) |
C7A—C1A—C6A—C5A | 175.90 (10) | C7B—C1B—C6B—C5B | −176.21 (10) |
S1A—C1A—C6A—C5A | −67.21 (12) | S1B—C1B—C6B—C5B | 66.82 (12) |
C2A—C1A—C7A—C8A | 51.95 (15) | C2B—C1B—C7B—C8B | −51.91 (14) |
C6A—C1A—C7A—C8A | −71.53 (14) | C6B—C1B—C7B—C8B | 71.45 (14) |
S1A—C1A—C7A—C8A | 173.37 (9) | S1B—C1B—C7B—C8B | −173.49 (9) |
C2A—C1A—C7A—C12A | 175.66 (10) | C2B—C1B—C7B—C12B | −175.58 (10) |
C6A—C1A—C7A—C12A | 52.18 (14) | C6B—C1B—C7B—C12B | −52.22 (14) |
S1A—C1A—C7A—C12A | −62.92 (12) | S1B—C1B—C7B—C12B | 62.84 (12) |
C1A—C7A—C8A—O1A | 14.12 (19) | C1B—C7B—C8B—O1B | −14.47 (19) |
C12A—C7A—C8A—O1A | −114.43 (14) | C12B—C7B—C8B—O1B | 114.15 (14) |
C1A—C7A—C8A—C9A | −169.72 (11) | C1B—C7B—C8B—C9B | 169.73 (11) |
C12A—C7A—C8A—C9A | 61.73 (13) | C12B—C7B—C8B—C9B | −61.65 (13) |
O1A—C8A—C9A—C10A | 118.09 (13) | O1B—C8B—C9B—C10B | −117.53 (14) |
C7A—C8A—C9A—C10A | −58.22 (14) | C7B—C8B—C9B—C10B | 58.46 (14) |
C8A—C9A—C10A—C11A | 51.80 (15) | C8B—C9B—C10B—C11B | −52.11 (15) |
C9A—C10A—C11A—C12A | −53.81 (14) | C9B—C10B—C11B—C12B | 53.95 (14) |
C10A—C11A—C12A—C7A | 61.17 (14) | C10B—C11B—C12B—C7B | −61.06 (14) |
C8A—C7A—C12A—C11A | −62.58 (13) | C8B—C7B—C12B—C11B | 62.32 (13) |
C1A—C7A—C12A—C11A | 166.68 (10) | C1B—C7B—C12B—C11B | −167.23 (10) |
C1A—S1A—C13A—C14A | 174.74 (9) | C1B—S1B—C13B—C14B | −176.72 (10) |
Experimental details
Crystal data | |
Chemical formula | C14H24OS |
Mr | 240.39 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 90 |
a, b, c (Å) | 10.3662 (2), 11.2090 (2), 11.5026 (2) |
α, β, γ (°) | 92.5786 (8), 101.7513 (8), 90.2145 (8) |
V (Å3) | 1307.09 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.23 |
Crystal size (mm) | 0.18 × 0.15 × 0.10 |
Data collection | |
Diffractometer | Nonius KappaCCD diffractometer |
Absorption correction | Multi-scan (SCALEPACK; Otwinowski & Minor, 1997) |
Tmin, Tmax | 0.960, 0.978 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 32350, 5986, 5000 |
Rint | 0.037 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.092, 1.05 |
No. of reflections | 5986 |
No. of parameters | 291 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.40, −0.34 |
Computer programs: COLLECT (Nonius, 1998), SCALEPACK (Otwinowski & Minor, 1997), DENZO-SMN (Otwinowski & Minor, 1997), SHELXS97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008) and local procedures.
References
Bach, R. D. & Klix, R. C. (1985). J. Org. Chem. 50, 5440–5441. CrossRef Web of Science Google Scholar
Ito, Y., Fujii, S., Nakatuska, M., Kawamoto, F. & Saegusa, T. (1979). Org. Synth. 59, 113–121. Google Scholar
Kumar, V. & Dev, S. (1983). Tetrahedron Lett. 24, 1289–1292. CrossRef CAS Web of Science Google Scholar
Nonius (1998). COLLECT. Nonius BV, Delft, The Netherlands. Google Scholar
Otwinowski, Z. & Minor, W. (1997). Methods in Enzymology, Vol. 276, Macromolecular Crystallography, Part A, edited by C. W. Carter Jr & R. M. Sweet, pp. 307–326. New York: Academic Press. Google Scholar
Reetz, M. T. & Giannis, A. (1981). Synth. Commun. 11, 315–322. CrossRef CAS Web of Science Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Trost, B. M., Salzmann, T. N. & Hirori, K. (1976). J. Am. Chem. Soc. 98, 4887–4902. CrossRef CAS Web of Science Google Scholar
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.
Self condensation of cyclohexanone followed by in situ dehydration provides an isomeric mixture of products, specifically, 2-(1-cyclohexen-l-yl)cyclohexanone and cyclohexylidenecyclohexanone. In our efforts to obtain only cyclohexylidinecyclohexanone, an improved route was developed. The title compound, C14H24OS, was prepared through a Lewis acid mediated alkylation between 1,1-bis(ethylsulfanyl)cyclohexane and 1-trimethylsilyloxycyclohexene at low temperature. The title compound can be oxidized with NaIO4 and the corresponding cyclohexylidinecyclohexanone is produced as the only product in moderate yield.
The conformational energy for a cyclohexyl ring is 2.15 kcal/mol while the energy for ethanethiol is approxiamately 0.7 kcal/mol. From this information it is expected that both ring systems would be in an equatorial position leaving the thiol axial. The xray analysis provided agreement to our hypothesis.