organic compounds
rac-2-Phenyl-1-[(2,4,6-triisopropylbenzene)sulfonyl]aziridine
aFakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
*Correspondence e-mail: carsten.strohmann@tu-dortmund.de
In the title compound, C23H31NO2S, the geometry of the triisopropylphenyl group is slightly distorted, with elongated C—C bonds at the ipso-C atom, and an S atom which deviates from the benzene ring plane by 0.228 (2) Å. This distortion is caused by the bulky substituents and, in comparison, an unbent geometry is observed in N-toluenesulfonylaziridine [Zhu et al. (2006). Acta Cryst. E62, o1507–o1508]. π–π interactions between adjacent benzene rings [centroid–centroid distance = 3.7928 (11) Å] and are observed.
CCDC reference: 979593
Related literature
For structures containing the triisopropylbenzenesulfonyl group with detailed discussion of the geometry, see: Sandrock et al. (2004); Laba et al. (2009). For the lithiation of activated aziridines, see: Huang et al. (2009) and for a general review on aziridinylanions, see: Florio & Luisi (2010). For the most recent synthesis of the title compound, see: Kavanagh et al. (2013). For deprotonation reactions of aziridinyl anions to see: Gessner & Strohmann (2007, 2008a,b); Unkelbach et al. (2012).
Experimental
Crystal data
|
Data collection: CrysAlis CCD (Oxford Diffraction, 2012); cell CrysAlis CCD; data reduction: CrysAlis RED (Oxford Diffraction, 2012); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
CCDC reference: 979593
10.1107/S1600536814000257/fk2077sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814000257/fk2077Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814000257/fk2077Isup3.mol
Supporting information file. DOI: 10.1107/S1600536814000257/fk2077Isup4.cml
All H atoms were placed in calculated positions (aromatic C-H = 0.95 Å, primary C-H = 0.98 Å, secondary C-H = 0.99 Å, tertiary C-H = 1.00 Å) and allowed to ride in the
with Uiso(H) = 1.2 Ueq(C) and Uiso(H) = 1.5 Ueq(C) for terminal groups.In the past 10 years, interest in aziridinyl anions generated by direct deprotonation grew steadily (Florio & Luisi, 2010). In our group, deprotonation reactions in α- or β-position to are a frequent research topic (Gessner & Strohmann, 2007; Gessner & Strohmann, 2008a,b; Unkelbach et al., 2012). We synthesized the compound with the intention to study the deprotonation of the aziridine moiety, which features both the α- and β-position on the same carbon, as well as ringstrain specific effects. The knowledge of the exact structure of the deprotonation substrate is usefull for further discussions of metalleted or substituted derivatives. The succesful deprotonation of such aziridines similar to the title compound were already reported by Huang et al., 2009. The synthesis of the title compound via sulfonium ylide transfer was most recently reportet by Kavanagh et al., 2013.
π—π-Interactions between parallel phenyl groups of adjacent molecules are indicated by a plane-to-plane distance of 3.76 (1) Å, whereas the distance between the isopropyl substituted benzene rings is far longer with 6.30 (1) Å (distance of the centroids). Additionally, interactions between the phenyl ring and the perpendicular aziridine group of an adjacent molecule are possible, with a distance between the ipso-carbon (C9) and the aziridine carbon C1 of 3.43 (1) Å. Thus, a T-shaped π-interaction between the aromat and the aziridin moiety are supposable. The C—C-bonds in the triisopropyl substituted benzene ring are not equidistant, but show slight deviations, similar to those found in other structures containing that group (Sandrock et al., 2004, Laba et al., 2009). Longer C—C-bonds were observed at the ipso-carbon [C9—C10 1.416 (2) Å and C9—C14 1.415 (2) Å] than for the other [C10—C11 1.396 (2) Å, C11—C12 1.385 (2) Å and C12—C13 1.384 (2) Å]. In addition, C—O-distances [C16—O2 2.83 (1) Å and C22—O1 2.98 (1) Å] shorter than the sum of the corresponding van-der-waals radii suggest strong steric repulsion between the isopropyl groups and the sulfonyl oxygen atoms, causing the sulfur atom to bend out of the aromatic plane (defined by C9-C10-C11-C12-C13-C14) of which it deviates by 0.228 (2) Å.
For structures containing the triisopropylbenzenesulfonyl group with detailed discussion of the geometry, see: Sandrock et al. (2004); Laba et al. (2009). For the lithiation of activated aziridines, see: Huang et al. (2009) and for a general review on aziridinylanions, see: Florio & Luisi (2010). For the most recent synthesis of the title compound, see: Kavanagh et al. (2013). For deprotonation reactions of aziridinyl anions to
see: Gessner & Strohmann (2007, 2008a,b); Unkelbach et al. (2012).Data collection: CrysAlis CCD (Oxford Diffraction, 2012); cell
CrysAlis CCD (Oxford Diffraction, 2012); data reduction: CrysAlis RED (Oxford Diffraction, 2012); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: publCIF (Westrip, 2010).C23H31NO2S | Z = 2 |
Mr = 385.55 | F(000) = 416 |
Triclinic, P1 | Dx = 1.166 Mg m−3 |
a = 6.3037 (3) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 9.6995 (5) Å | Cell parameters from 5958 reflections |
c = 18.6675 (9) Å | θ = 2.7–28.8° |
α = 75.280 (4)° | µ = 0.16 mm−1 |
β = 86.842 (4)° | T = 173 K |
γ = 84.404 (4)° | Needle, colourless |
V = 1098.11 (10) Å3 | 0.31 × 0.05 × 0.04 mm |
Agilent Xcalibur Sapphire3 diffractometer | 4314 independent reflections |
Radiation source: Enhance (Mo) X-ray Source | 3633 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.045 |
Detector resolution: 16.0560 pixels mm-1 | θmax = 26.0°, θmin = 2.3° |
φ and ω scans | h = −7→7 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2012) | k = −11→11 |
Tmin = 0.952, Tmax = 1.000 | l = −22→22 |
17550 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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0409P)2 + 0.5494P] where P = (Fo2 + 2Fc2)/3 |
4314 reflections | (Δ/σ)max = 0.001 |
250 parameters | Δρmax = 0.34 e Å−3 |
0 restraints | Δρmin = −0.35 e Å−3 |
0 constraints |
C23H31NO2S | γ = 84.404 (4)° |
Mr = 385.55 | V = 1098.11 (10) Å3 |
Triclinic, P1 | Z = 2 |
a = 6.3037 (3) Å | Mo Kα radiation |
b = 9.6995 (5) Å | µ = 0.16 mm−1 |
c = 18.6675 (9) Å | T = 173 K |
α = 75.280 (4)° | 0.31 × 0.05 × 0.04 mm |
β = 86.842 (4)° |
Agilent Xcalibur Sapphire3 diffractometer | 4314 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2012) | 3633 reflections with I > 2σ(I) |
Tmin = 0.952, Tmax = 1.000 | Rint = 0.045 |
17550 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.34 e Å−3 |
4314 reflections | Δρmin = −0.35 e Å−3 |
250 parameters |
Experimental. Absorption correction: CrysAlisPro, Agilent Technologies, Version 1.171.36.24 (release 03-12-2012 CrysAlis171 .NET) (compiled Dec 3 2012,18:21:49) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
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. |
x | y | z | Uiso*/Ueq | ||
S | 0.05721 (6) | 0.42978 (4) | 0.83601 (2) | 0.02251 (13) | |
N | 0.2890 (2) | 0.41306 (14) | 0.87676 (7) | 0.0216 (3) | |
O1 | 0.01403 (19) | 0.28743 (12) | 0.83621 (7) | 0.0304 (3) | |
O2 | −0.10310 (19) | 0.51063 (13) | 0.87007 (7) | 0.0319 (3) | |
C1 | 0.3327 (3) | 0.52186 (18) | 0.91561 (10) | 0.0292 (4) | |
H1A | 0.2270 | 0.6057 | 0.9118 | 0.035* | |
H1B | 0.4829 | 0.5424 | 0.9172 | 0.035* | |
C2 | 0.2698 (3) | 0.38042 (18) | 0.95994 (9) | 0.0247 (4) | |
H2 | 0.1206 | 0.3805 | 0.9811 | 0.030* | |
C3 | 0.4221 (3) | 0.26355 (17) | 1.00030 (9) | 0.0228 (4) | |
C4 | 0.6286 (3) | 0.24228 (19) | 0.97333 (10) | 0.0298 (4) | |
H4 | 0.6741 | 0.3024 | 0.9277 | 0.036* | |
C5 | 0.7692 (3) | 0.1342 (2) | 1.01235 (11) | 0.0349 (4) | |
H5 | 0.9114 | 0.1220 | 0.9939 | 0.042* | |
C6 | 0.7035 (3) | 0.0440 (2) | 1.07802 (11) | 0.0382 (5) | |
H6 | 0.7998 | −0.0303 | 1.1047 | 0.046* | |
C7 | 0.4971 (4) | 0.0628 (2) | 1.10443 (11) | 0.0419 (5) | |
H7 | 0.4508 | 0.0002 | 1.1492 | 0.050* | |
C8 | 0.3560 (3) | 0.1726 (2) | 1.06619 (10) | 0.0322 (4) | |
H8 | 0.2144 | 0.1853 | 1.0851 | 0.039* | |
C9 | 0.1211 (3) | 0.52378 (17) | 0.74302 (9) | 0.0205 (3) | |
C10 | 0.0207 (3) | 0.66079 (17) | 0.71038 (9) | 0.0238 (4) | |
C11 | 0.0609 (3) | 0.71662 (18) | 0.63479 (9) | 0.0282 (4) | |
H11 | −0.0067 | 0.8077 | 0.6116 | 0.034* | |
C12 | 0.1947 (3) | 0.64572 (19) | 0.59189 (9) | 0.0286 (4) | |
C13 | 0.2961 (3) | 0.51463 (18) | 0.62672 (9) | 0.0272 (4) | |
H13 | 0.3914 | 0.4663 | 0.5981 | 0.033* | |
C14 | 0.2649 (3) | 0.45043 (17) | 0.70157 (9) | 0.0222 (4) | |
C15 | −0.0578 (5) | 0.9059 (2) | 0.73340 (15) | 0.0609 (7) | |
H15A | −0.0836 | 0.9553 | 0.6815 | 0.091* | |
H15B | 0.0946 | 0.9011 | 0.7426 | 0.091* | |
H15C | −0.1392 | 0.9585 | 0.7658 | 0.091* | |
C16 | −0.1279 (3) | 0.75541 (18) | 0.74931 (10) | 0.0309 (4) | |
H16 | −0.1170 | 0.7129 | 0.8038 | 0.037* | |
C17 | −0.3564 (4) | 0.7547 (3) | 0.73040 (19) | 0.0728 (9) | |
H17A | −0.3732 | 0.7958 | 0.6771 | 0.109* | |
H17B | −0.4484 | 0.8118 | 0.7581 | 0.109* | |
H17C | −0.3968 | 0.6562 | 0.7436 | 0.109* | |
C18 | 0.3517 (5) | 0.8457 (3) | 0.49803 (14) | 0.0692 (8) | |
H18A | 0.2633 | 0.9177 | 0.5174 | 0.104* | |
H18B | 0.3815 | 0.8837 | 0.4450 | 0.104* | |
H18C | 0.4862 | 0.8219 | 0.5241 | 0.104* | |
C19 | 0.2340 (3) | 0.7118 (2) | 0.50981 (10) | 0.0397 (5) | |
H19 | 0.3278 | 0.6407 | 0.4894 | 0.048* | |
C20 | 0.0285 (4) | 0.7429 (3) | 0.46754 (13) | 0.0653 (7) | |
H20A | −0.0443 | 0.6551 | 0.4762 | 0.098* | |
H20B | 0.0615 | 0.7777 | 0.4144 | 0.098* | |
H20C | −0.0642 | 0.8160 | 0.4847 | 0.098* | |
C21 | 0.6302 (3) | 0.3192 (2) | 0.71540 (13) | 0.0451 (5) | |
H21A | 0.6587 | 0.3397 | 0.6618 | 0.068* | |
H21B | 0.7101 | 0.2292 | 0.7397 | 0.068* | |
H21C | 0.6746 | 0.3971 | 0.7342 | 0.068* | |
C22 | 0.3917 (3) | 0.30635 (18) | 0.73179 (10) | 0.0258 (4) | |
H22 | 0.3678 | 0.2782 | 0.7868 | 0.031* | |
C23 | 0.3133 (4) | 0.1912 (2) | 0.69989 (12) | 0.0403 (5) | |
H23A | 0.1611 | 0.1835 | 0.7123 | 0.060* | |
H23B | 0.3933 | 0.0992 | 0.7209 | 0.060* | |
H23C | 0.3352 | 0.2168 | 0.6459 | 0.060* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S | 0.0209 (2) | 0.0214 (2) | 0.0226 (2) | −0.00145 (16) | −0.00392 (16) | −0.00021 (16) |
N | 0.0227 (7) | 0.0221 (7) | 0.0195 (7) | −0.0023 (6) | −0.0030 (6) | −0.0038 (5) |
O1 | 0.0315 (7) | 0.0229 (6) | 0.0347 (7) | −0.0073 (5) | −0.0106 (5) | 0.0006 (5) |
O2 | 0.0262 (7) | 0.0321 (7) | 0.0301 (7) | 0.0046 (5) | 0.0039 (5) | 0.0017 (5) |
C1 | 0.0376 (10) | 0.0233 (9) | 0.0285 (9) | −0.0014 (8) | −0.0108 (8) | −0.0080 (7) |
C2 | 0.0295 (9) | 0.0259 (9) | 0.0188 (8) | 0.0015 (7) | −0.0014 (7) | −0.0071 (7) |
C3 | 0.0278 (9) | 0.0220 (8) | 0.0205 (8) | −0.0016 (7) | −0.0050 (7) | −0.0080 (7) |
C4 | 0.0303 (10) | 0.0259 (9) | 0.0311 (10) | −0.0029 (7) | −0.0014 (8) | −0.0027 (7) |
C5 | 0.0295 (10) | 0.0320 (10) | 0.0425 (11) | 0.0035 (8) | −0.0042 (8) | −0.0094 (8) |
C6 | 0.0482 (13) | 0.0290 (10) | 0.0352 (11) | 0.0106 (9) | −0.0145 (9) | −0.0066 (8) |
C7 | 0.0572 (14) | 0.0366 (11) | 0.0245 (10) | 0.0046 (10) | −0.0016 (9) | 0.0027 (8) |
C8 | 0.0372 (11) | 0.0354 (10) | 0.0223 (9) | 0.0011 (8) | 0.0012 (8) | −0.0059 (8) |
C9 | 0.0227 (8) | 0.0200 (8) | 0.0189 (8) | −0.0029 (6) | −0.0058 (6) | −0.0038 (6) |
C10 | 0.0259 (9) | 0.0193 (8) | 0.0260 (9) | 0.0001 (7) | −0.0035 (7) | −0.0056 (7) |
C11 | 0.0333 (10) | 0.0205 (8) | 0.0265 (9) | 0.0056 (7) | −0.0045 (7) | −0.0003 (7) |
C12 | 0.0339 (10) | 0.0282 (9) | 0.0219 (9) | 0.0017 (8) | −0.0053 (7) | −0.0038 (7) |
C13 | 0.0293 (9) | 0.0276 (9) | 0.0253 (9) | 0.0053 (7) | −0.0040 (7) | −0.0097 (7) |
C14 | 0.0230 (9) | 0.0201 (8) | 0.0247 (8) | −0.0001 (7) | −0.0083 (7) | −0.0065 (7) |
C15 | 0.0812 (19) | 0.0319 (12) | 0.0736 (17) | −0.0089 (12) | 0.0258 (14) | −0.0251 (12) |
C16 | 0.0393 (11) | 0.0205 (9) | 0.0295 (9) | 0.0048 (8) | 0.0035 (8) | −0.0037 (7) |
C17 | 0.0355 (13) | 0.084 (2) | 0.117 (3) | 0.0111 (13) | −0.0003 (14) | −0.0659 (19) |
C18 | 0.087 (2) | 0.0712 (18) | 0.0413 (14) | −0.0245 (15) | 0.0178 (13) | 0.0033 (12) |
C19 | 0.0517 (13) | 0.0381 (11) | 0.0227 (9) | 0.0129 (9) | 0.0010 (9) | −0.0022 (8) |
C20 | 0.0744 (18) | 0.0837 (19) | 0.0292 (12) | 0.0079 (15) | −0.0155 (12) | −0.0012 (12) |
C21 | 0.0329 (11) | 0.0404 (12) | 0.0580 (14) | 0.0097 (9) | −0.0171 (10) | −0.0066 (10) |
C22 | 0.0306 (9) | 0.0219 (9) | 0.0253 (9) | 0.0054 (7) | −0.0095 (7) | −0.0073 (7) |
C23 | 0.0517 (13) | 0.0244 (10) | 0.0470 (12) | 0.0056 (9) | −0.0197 (10) | −0.0126 (9) |
S—O1 | 1.4322 (12) | C13—C14 | 1.389 (2) |
S—O2 | 1.4382 (13) | C13—H13 | 0.9500 |
S—N | 1.6597 (14) | C14—C22 | 1.530 (2) |
S—C9 | 1.7880 (16) | C15—C16 | 1.518 (3) |
N—C1 | 1.478 (2) | C15—H15A | 0.9800 |
N—C2 | 1.504 (2) | C15—H15B | 0.9800 |
C1—C2 | 1.489 (2) | C15—H15C | 0.9800 |
C1—H1A | 0.9900 | C16—C17 | 1.503 (3) |
C1—H1B | 0.9900 | C16—H16 | 1.0000 |
C2—C3 | 1.486 (2) | C17—H17A | 0.9800 |
C2—H2 | 1.0000 | C17—H17B | 0.9800 |
C3—C4 | 1.385 (2) | C17—H17C | 0.9800 |
C3—C8 | 1.389 (2) | C18—C19 | 1.519 (3) |
C4—C5 | 1.384 (3) | C18—H18A | 0.9800 |
C4—H4 | 0.9500 | C18—H18B | 0.9800 |
C5—C6 | 1.382 (3) | C18—H18C | 0.9800 |
C5—H5 | 0.9500 | C19—C20 | 1.519 (3) |
C6—C7 | 1.378 (3) | C19—H19 | 1.0000 |
C6—H6 | 0.9500 | C20—H20A | 0.9800 |
C7—C8 | 1.390 (3) | C20—H20B | 0.9800 |
C7—H7 | 0.9500 | C20—H20C | 0.9800 |
C8—H8 | 0.9500 | C21—C22 | 1.528 (3) |
C9—C14 | 1.415 (2) | C21—H21A | 0.9800 |
C9—C10 | 1.416 (2) | C21—H21B | 0.9800 |
C10—C11 | 1.396 (2) | C21—H21C | 0.9800 |
C10—C16 | 1.531 (2) | C22—C23 | 1.525 (2) |
C11—C12 | 1.385 (2) | C22—H22 | 1.0000 |
C11—H11 | 0.9500 | C23—H23A | 0.9800 |
C12—C13 | 1.384 (2) | C23—H23B | 0.9800 |
C12—C19 | 1.520 (2) | C23—H23C | 0.9800 |
O1—S—O2 | 116.59 (8) | C9—C14—C22 | 125.91 (15) |
O1—S—N | 105.66 (7) | C16—C15—H15A | 109.5 |
O2—S—N | 111.07 (7) | C16—C15—H15B | 109.5 |
O1—S—C9 | 108.62 (7) | H15A—C15—H15B | 109.5 |
O2—S—C9 | 111.50 (7) | C16—C15—H15C | 109.5 |
N—S—C9 | 102.29 (7) | H15A—C15—H15C | 109.5 |
C1—N—C2 | 59.91 (11) | H15B—C15—H15C | 109.5 |
C1—N—S | 118.58 (11) | C17—C16—C15 | 112.2 (2) |
C2—N—S | 113.79 (11) | C17—C16—C10 | 111.28 (16) |
N—C1—C2 | 60.94 (10) | C15—C16—C10 | 111.45 (16) |
N—C1—H1A | 117.7 | C17—C16—H16 | 107.2 |
C2—C1—H1A | 117.7 | C15—C16—H16 | 107.2 |
N—C1—H1B | 117.7 | C10—C16—H16 | 107.2 |
C2—C1—H1B | 117.7 | C16—C17—H17A | 109.5 |
H1A—C1—H1B | 114.8 | C16—C17—H17B | 109.5 |
C3—C2—C1 | 124.07 (16) | H17A—C17—H17B | 109.5 |
C3—C2—N | 115.58 (13) | C16—C17—H17C | 109.5 |
C1—C2—N | 59.15 (10) | H17A—C17—H17C | 109.5 |
C3—C2—H2 | 115.3 | H17B—C17—H17C | 109.5 |
C1—C2—H2 | 115.3 | C19—C18—H18A | 109.5 |
N—C2—H2 | 115.3 | C19—C18—H18B | 109.5 |
C4—C3—C8 | 119.08 (16) | H18A—C18—H18B | 109.5 |
C4—C3—C2 | 121.46 (15) | C19—C18—H18C | 109.5 |
C8—C3—C2 | 119.45 (16) | H18A—C18—H18C | 109.5 |
C5—C4—C3 | 120.59 (17) | H18B—C18—H18C | 109.5 |
C5—C4—H4 | 119.7 | C20—C19—C18 | 111.1 (2) |
C3—C4—H4 | 119.7 | C20—C19—C12 | 111.87 (18) |
C6—C5—C4 | 120.28 (18) | C18—C19—C12 | 110.91 (17) |
C6—C5—H5 | 119.9 | C20—C19—H19 | 107.6 |
C4—C5—H5 | 119.9 | C18—C19—H19 | 107.6 |
C7—C6—C5 | 119.43 (18) | C12—C19—H19 | 107.6 |
C7—C6—H6 | 120.3 | C19—C20—H20A | 109.5 |
C5—C6—H6 | 120.3 | C19—C20—H20B | 109.5 |
C6—C7—C8 | 120.63 (18) | H20A—C20—H20B | 109.5 |
C6—C7—H7 | 119.7 | C19—C20—H20C | 109.5 |
C8—C7—H7 | 119.7 | H20A—C20—H20C | 109.5 |
C3—C8—C7 | 119.96 (18) | H20B—C20—H20C | 109.5 |
C3—C8—H8 | 120.0 | C22—C21—H21A | 109.5 |
C7—C8—H8 | 120.0 | C22—C21—H21B | 109.5 |
C14—C9—C10 | 121.29 (15) | H21A—C21—H21B | 109.5 |
C14—C9—S | 116.84 (12) | C22—C21—H21C | 109.5 |
C10—C9—S | 121.69 (12) | H21A—C21—H21C | 109.5 |
C11—C10—C9 | 117.04 (15) | H21B—C21—H21C | 109.5 |
C11—C10—C16 | 116.07 (14) | C23—C22—C21 | 111.22 (16) |
C9—C10—C16 | 126.88 (15) | C23—C22—C14 | 110.57 (14) |
C12—C11—C10 | 123.22 (15) | C21—C22—C14 | 110.51 (15) |
C12—C11—H11 | 118.4 | C23—C22—H22 | 108.1 |
C10—C11—H11 | 118.4 | C21—C22—H22 | 108.1 |
C13—C12—C11 | 117.74 (16) | C14—C22—H22 | 108.1 |
C13—C12—C19 | 121.16 (16) | C22—C23—H23A | 109.5 |
C11—C12—C19 | 121.07 (16) | C22—C23—H23B | 109.5 |
C12—C13—C14 | 123.04 (16) | H23A—C23—H23B | 109.5 |
C12—C13—H13 | 118.5 | C22—C23—H23C | 109.5 |
C14—C13—H13 | 118.5 | H23A—C23—H23C | 109.5 |
C13—C14—C9 | 117.56 (15) | H23B—C23—H23C | 109.5 |
C13—C14—C22 | 116.53 (15) |
Experimental details
Crystal data | |
Chemical formula | C23H31NO2S |
Mr | 385.55 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 173 |
a, b, c (Å) | 6.3037 (3), 9.6995 (5), 18.6675 (9) |
α, β, γ (°) | 75.280 (4), 86.842 (4), 84.404 (4) |
V (Å3) | 1098.11 (10) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.16 |
Crystal size (mm) | 0.31 × 0.05 × 0.04 |
Data collection | |
Diffractometer | Agilent Xcalibur Sapphire3 |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2012) |
Tmin, Tmax | 0.952, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17550, 4314, 3633 |
Rint | 0.045 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.107, 1.06 |
No. of reflections | 4314 |
No. of parameters | 250 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.34, −0.35 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2012), CrysAlis RED (Oxford Diffraction, 2012), SHELXS97 (Sheldrick, 2008), SHELXL2013 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), publCIF (Westrip, 2010).
Atom | Deviation |
C9 | 0.020 (1) |
C10 | -0.013 (1) |
C11 | -0.005 (1) |
C12 | 0.015 (1) |
C13 | -0.009 (1) |
C14 | -0.009 (1) |
S1* | 0.228 (2) |
Note: (*) not used in the least-squares-plane calculation. |
Acknowledgements
We thank the Deutsche Forschungsgemeinschaft (DFG) for financial support.
References
Florio, S. & Luisi, R. (2010). Chem. Rec. 110, 5128–5157. Web of Science CrossRef CAS Google Scholar
Gessner, V. H. & Strohmann, C. (2007). Angew. Chem. Int. Ed. 46, 4566–4569. Google Scholar
Gessner, V. H. & Strohmann, C. (2008a). Angew. Chem. Int. Ed. 46, 8281–8283. Google Scholar
Gessner, V. H. & Strohmann, C. (2008b). J. Am. Chem. Soc. 130, 14412–14413. Web of Science CSD CrossRef PubMed CAS Google Scholar
Huang, J., Moore, S. P., O'Brien, P., Whitwood, A. C. & Gilday, J. (2009). Org. Biomol. Chem. 7, 335–345. Web of Science CSD CrossRef PubMed Google Scholar
Kavanagh, S. A., Piccini, A. & Connon, S. J. (2013). Org. Biomol. Chem. 11, 3535–3540. Web of Science CrossRef CAS PubMed Google Scholar
Laba, V. I., Sviridova, A. V. & Nesterov, V. N. (2009). Kristallografiya, 54, 44–47. CAS Google Scholar
Oxford Diffraction (2012). CrysAlis CCD, CrysAlis RED and CrysAlis PRO. Oxford Diffraction Ltd, Abingdon, England. Google Scholar
Sandrock, P. B., Meyers, C. Y., Rath, N. P. & Robinson, P. D. (2004). Acta Cryst. E60, o544–o546. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Unkelbach, C., Rosenbaum, H. S. & Strohmann, C. (2012). Chem. Commun. 48, 10612–10614. Web of Science CSD CrossRef CAS Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals Google Scholar
Zhu, J., Zhang, M.-J., Liu, Q.-W. & Pan, Z.-H. (2006). Acta Cryst. E62, o1507–o1508. Web of Science CSD CrossRef CAS IUCr Journals 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.
In the past 10 years, interest in aziridinyl anions generated by direct deprotonation grew steadily (Florio & Luisi, 2010). In our group, deprotonation reactions in α- or β-position to amines are a frequent research topic (Gessner & Strohmann, 2007; Gessner & Strohmann, 2008a,b; Unkelbach et al., 2012). We synthesized the compound with the intention to study the deprotonation of the aziridine moiety, which features both the α- and β-position on the same carbon, as well as ringstrain specific effects. The knowledge of the exact structure of the deprotonation substrate is usefull for further discussions of metalleted or substituted derivatives. The succesful deprotonation of such aziridines similar to the title compound were already reported by Huang et al., 2009. The synthesis of the title compound via sulfonium ylide transfer was most recently reportet by Kavanagh et al., 2013.
π—π-Interactions between parallel phenyl groups of adjacent molecules are indicated by a plane-to-plane distance of 3.76 (1) Å, whereas the distance between the isopropyl substituted benzene rings is far longer with 6.30 (1) Å (distance of the centroids). Additionally, interactions between the phenyl ring and the perpendicular aziridine group of an adjacent molecule are possible, with a distance between the ipso-carbon (C9) and the aziridine carbon C1 of 3.43 (1) Å. Thus, a T-shaped π-interaction between the aromat and the aziridin moiety are supposable. The C—C-bonds in the triisopropyl substituted benzene ring are not equidistant, but show slight deviations, similar to those found in other structures containing that group (Sandrock et al., 2004, Laba et al., 2009). Longer C—C-bonds were observed at the ipso-carbon [C9—C10 1.416 (2) Å and C9—C14 1.415 (2) Å] than for the other [C10—C11 1.396 (2) Å, C11—C12 1.385 (2) Å and C12—C13 1.384 (2) Å]. In addition, C—O-distances [C16—O2 2.83 (1) Å and C22—O1 2.98 (1) Å] shorter than the sum of the corresponding van-der-waals radii suggest strong steric repulsion between the isopropyl groups and the sulfonyl oxygen atoms, causing the sulfur atom to bend out of the aromatic plane (defined by C9-C10-C11-C12-C13-C14) of which it deviates by 0.228 (2) Å.