Literature DB >> 24046603

2-Methyl-1,1-diphenyl-2-[(4S)-4-phenyl-4,5-di-hydro-1,3-oxazol-2-yl]propan-1-ol.

Wen-Xiao Jia1, Yu-Lai Hu, Dang-Feng Huang, Teng Niu, Yan-Jun Ma.   

Abstract

In the title compound, C25H25NO2, the phenyl ring on the 1,3-oxazole ring is disordered over two positions with occupancies of 0.600 (4) and 0.400 (4). The inter-planar angle between these two disordered rings is 77.8 (2)°. There is an intra-molecular O-H⋯N hydrogen bond of moderate strength. In the crystal, C-H⋯π inter-actions interconnect neighbouring molecules. The absolute structure has been derived from the known absolute structure of the reagents.

Entities:  

Year:  2013        PMID: 24046603      PMCID: PMC3772460          DOI: 10.1107/S1600536813014670

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For the synthesis and applications of oxazolines, see: Ghosh et al. (1998 ▶); Johnson & Evans (2000 ▶). For the categorization of hydrogen bonds, see: Gilli & Gilli (2009 ▶).

Experimental

Crystal data

C25H25NO2 M = 371.46 Orthorhombic, a = 9.5405 (2) Å b = 10.9430 (9) Å c = 19.2901 (6) Å V = 2013.92 (18) Å3 Z = 4 Mo Kα radiation μ = 0.08 mm−1 T = 293 K 0.34 × 0.07 × 0.06 mm

Data collection

Bruker APEXII CCD diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2008 ▶) T min = 0.849, T max = 0.977 5590 measured reflections 2428 independent reflections 2103 reflections with I > 2σ(I) R int = 0.040

Refinement

R[F 2 > 2σ(F 2)] = 0.045 wR(F 2) = 0.102 S = 1.08 2428 reflections 305 parameters 338 restraints H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.21 e Å−3 Δρmin = −0.17 e Å−3 Data collection: APEX2 (Bruker, 2008 ▶); cell refinement: SAINT (Bruker, 2008 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: SHELXTL (Sheldrick, 2008 ▶) and DIAMOND (Brandenburg, 2010 ▶); software used to prepare material for publication: SHELXTL and publCIF (Westrip, 2010 ▶). Crystal structure: contains datablock(s) I, global. DOI: 10.1107/S1600536813014670/fb2285sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536813014670/fb2285Isup2.hkl Click here for additional data file. Supplementary material file. DOI: 10.1107/S1600536813014670/fb2285Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C25H25NO2Dx = 1.225 Mg m3
Mr = 371.46Melting point = 380–381 K
Orthorhombic, P212121Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2ac 2abCell parameters from 2137 reflections
a = 9.5405 (2) Åθ = 3.0–28.6°
b = 10.9430 (9) ŵ = 0.08 mm1
c = 19.2901 (6) ÅT = 293 K
V = 2013.92 (18) Å3Block, colourless
Z = 40.34 × 0.07 × 0.06 mm
F(000) = 792
Bruker APEXII CCD diffractometer2428 independent reflections
Radiation source: fine-focus sealed tube2103 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.040
ω scansθmax = 26.8°, θmin = 3.0°
Absorption correction: multi-scan (SADABS; Bruker, 2008)h = −12→4
Tmin = 0.849, Tmax = 0.977k = −10→13
5590 measured reflectionsl = −24→21
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.045H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.102w = 1/[σ2(Fo2) + (0.0298P)2 + 0.5879P] where P = (Fo2 + 2Fc2)/3
S = 1.08(Δ/σ)max < 0.001
2428 reflectionsΔρmax = 0.21 e Å3
305 parametersΔρmin = −0.17 e Å3
338 restraintsExtinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
114 constraintsExtinction coefficient: 0.0119 (14)
Primary atom site location: structure-invariant direct methods
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.
xyzUiso*/UeqOcc. (<1)
O10.28330 (17)0.33991 (18)0.16867 (10)0.0264 (5)
O20.68088 (19)0.51237 (16)0.19226 (9)0.0183 (4)
H20.596 (3)0.533 (3)0.1828 (15)0.027*
C140.6840 (3)0.3818 (2)0.09158 (12)0.0183 (5)
C30.4060 (3)0.4020 (2)0.17253 (12)0.0176 (5)
C150.8082 (3)0.4282 (3)0.06375 (13)0.0256 (6)
H150.87700.45790.09350.031*
N60.4060 (2)0.5148 (2)0.15641 (10)0.0196 (5)
C130.8502 (3)0.2144 (2)0.17551 (13)0.0214 (6)
H130.80970.18240.13560.026*
C80.7957 (2)0.3207 (2)0.20445 (12)0.0171 (5)
C111.0271 (3)0.2014 (3)0.26401 (14)0.0266 (6)
H111.10420.16230.28350.032*
C120.9640 (3)0.1553 (3)0.20530 (13)0.0239 (6)
H120.99800.08380.18540.029*
C100.9738 (3)0.3071 (3)0.29357 (14)0.0269 (6)
H101.01510.33890.33340.032*
C190.5830 (3)0.3393 (3)0.04617 (13)0.0231 (6)
H190.49870.30900.06320.028*
C160.8312 (3)0.4309 (3)−0.00695 (14)0.0343 (7)
H160.91480.4621−0.02430.041*
C50.6704 (2)0.3861 (2)0.17153 (12)0.0158 (5)
C170.7302 (3)0.3874 (3)−0.05183 (14)0.0335 (7)
H170.74540.3890−0.09940.040*
C90.8593 (3)0.3661 (2)0.26428 (13)0.0213 (6)
H90.82450.43670.28480.026*
C70.5206 (3)0.3499 (3)0.28064 (12)0.0237 (6)
H7A0.53680.43440.29150.036*
H7B0.59020.30040.30300.036*
H7C0.42910.32650.29660.036*
C20.1796 (3)0.4270 (3)0.14409 (15)0.0298 (7)
H2A0.10330.43480.17700.036*
H2B0.14180.40180.09970.036*
C40.5295 (3)0.3314 (2)0.20112 (12)0.0169 (5)
C180.6074 (3)0.3418 (3)−0.02570 (13)0.0304 (7)
H180.53940.3120−0.05580.037*
C10.2605 (3)0.5484 (3)0.13726 (13)0.0205 (6)
H10.22420.60610.17180.025*
C200.2515 (3)0.6070 (3)0.06651 (14)0.0282 (7)
C60.5148 (3)0.1927 (2)0.18810 (13)0.0213 (6)
H6A0.42510.16540.20460.032*
H6B0.58770.15000.21230.032*
H6C0.52230.17660.13930.032*
C21A0.2705 (6)0.5271 (5)0.0051 (2)0.0364 (14)0.600 (4)
H21A0.28750.44400.01070.044*0.600 (4)
C22A0.2626 (6)0.5774 (5)−0.0610 (2)0.0391 (14)0.600 (4)
H22A0.27520.5273−0.09940.047*0.600 (4)
C23A0.2373 (7)0.6970 (6)−0.0704 (3)0.0343 (15)0.600 (4)
H23A0.23310.7297−0.11490.041*0.600 (4)
C24A0.2175 (9)0.7703 (5)−0.0134 (3)0.0521 (19)0.600 (4)
H24A0.19970.8532−0.01920.062*0.600 (4)
C25A0.2240 (7)0.7205 (5)0.0536 (3)0.0458 (16)0.600 (4)
H25A0.20770.77220.09100.055*0.600 (4)
C21B0.3699 (8)0.6581 (8)0.0362 (4)0.036 (2)0.400 (4)
H21B0.45750.64880.05670.044*0.400 (4)
C22B0.3554 (9)0.7233 (8)−0.0252 (4)0.042 (2)0.400 (4)
H22B0.43520.7480−0.04900.050*0.400 (4)
C23B0.2253 (11)0.7519 (10)−0.0514 (5)0.039 (3)0.400 (4)
H23B0.21670.7919−0.09370.046*0.400 (4)
C24B0.1101 (9)0.7207 (8)−0.0144 (4)0.036 (2)0.400 (4)
H24B0.02230.7444−0.03040.043*0.400 (4)
C25B0.1192 (8)0.6542 (7)0.0469 (4)0.0310 (18)0.400 (4)
H25B0.04040.64120.07430.037*0.400 (4)
U11U22U33U12U13U23
O10.0155 (8)0.0262 (10)0.0375 (11)−0.0019 (9)−0.0028 (8)0.0104 (9)
O20.0163 (8)0.0146 (8)0.0239 (9)−0.0003 (8)−0.0017 (8)−0.0015 (7)
C140.0205 (12)0.0155 (12)0.0190 (12)0.0054 (12)−0.0007 (11)0.0015 (10)
C30.0157 (11)0.0219 (13)0.0152 (11)−0.0014 (12)0.0009 (10)0.0008 (10)
C150.0225 (12)0.0324 (15)0.0219 (13)0.0034 (14)−0.0003 (11)0.0053 (12)
N60.0182 (10)0.0192 (11)0.0215 (11)0.0021 (10)−0.0019 (9)0.0015 (9)
C130.0220 (12)0.0245 (14)0.0176 (12)0.0033 (12)0.0024 (11)0.0019 (11)
C80.0173 (11)0.0181 (12)0.0158 (11)−0.0014 (11)0.0004 (10)0.0024 (10)
C110.0166 (11)0.0316 (16)0.0315 (14)−0.0022 (14)−0.0026 (12)0.0128 (13)
C120.0235 (12)0.0234 (13)0.0249 (13)0.0060 (13)0.0031 (11)0.0046 (12)
C100.0247 (12)0.0291 (15)0.0270 (13)−0.0044 (14)−0.0074 (12)0.0032 (12)
C190.0263 (13)0.0235 (14)0.0197 (12)0.0000 (13)−0.0006 (11)−0.0004 (11)
C160.0277 (14)0.0450 (19)0.0302 (15)0.0087 (16)0.0110 (13)0.0124 (14)
C50.0165 (11)0.0128 (11)0.0179 (11)−0.0007 (11)−0.0013 (10)−0.0006 (10)
C170.0447 (17)0.0420 (18)0.0138 (13)0.0139 (16)0.0081 (13)0.0005 (12)
C90.0212 (12)0.0198 (13)0.0228 (13)−0.0023 (11)−0.0019 (11)−0.0003 (11)
C70.0245 (12)0.0286 (15)0.0181 (12)0.0015 (14)0.0019 (11)0.0044 (11)
C20.0168 (12)0.0322 (16)0.0403 (16)0.0020 (14)−0.0066 (12)0.0118 (14)
C40.0170 (11)0.0153 (12)0.0184 (12)−0.0004 (12)0.0000 (10)0.0009 (11)
C180.0395 (15)0.0332 (16)0.0187 (13)0.0070 (16)−0.0034 (12)−0.0055 (12)
C10.0164 (11)0.0239 (14)0.0212 (13)0.0029 (12)0.0030 (10)0.0025 (11)
C200.0180 (12)0.0408 (18)0.0257 (14)0.0023 (14)−0.0024 (11)0.0094 (13)
C60.0211 (12)0.0183 (13)0.0244 (13)−0.0014 (12)−0.0031 (11)0.0011 (11)
C21A0.055 (3)0.032 (3)0.022 (2)0.016 (3)−0.005 (2)−0.005 (2)
C22A0.053 (3)0.043 (3)0.021 (2)0.010 (3)−0.002 (2)−0.003 (2)
C23A0.040 (3)0.046 (4)0.017 (3)−0.003 (3)−0.006 (2)0.005 (3)
C24A0.098 (5)0.024 (3)0.035 (3)−0.004 (4)−0.008 (4)0.009 (3)
C25A0.085 (4)0.029 (3)0.023 (2)−0.002 (3)−0.005 (3)−0.002 (2)
C21B0.034 (4)0.045 (4)0.029 (4)−0.004 (4)0.001 (3)0.011 (4)
C22B0.049 (4)0.048 (5)0.029 (4)−0.013 (4)−0.001 (4)0.016 (4)
C23B0.062 (5)0.041 (6)0.013 (4)0.004 (5)0.007 (4)0.007 (4)
C24B0.039 (4)0.037 (4)0.033 (4)0.010 (4)−0.006 (3)0.017 (3)
C25B0.031 (3)0.036 (4)0.027 (3)−0.003 (4)−0.006 (3)0.001 (3)
O1—C31.355 (3)C7—H7C0.9600
O1—C21.453 (3)C2—C11.542 (4)
O2—C51.442 (3)C2—H2A0.9700
O2—H20.86 (3)C2—H2B0.9700
C14—C191.383 (4)C4—C61.545 (3)
C14—C151.396 (4)C18—H180.9300
C14—C51.548 (3)C1—C201.510 (4)
C3—N61.274 (3)C1—H10.9800
C3—C41.513 (3)C20—C25A1.293 (6)
C15—C161.382 (4)C20—C21B1.390 (8)
C15—H150.9300C20—C25B1.415 (7)
N6—C11.483 (3)C20—C21A1.483 (5)
C13—C121.388 (4)C6—H6A0.9600
C13—C81.391 (4)C6—H6B0.9600
C13—H130.9300C6—H6C0.9600
C8—C91.395 (3)C21A—C22A1.391 (6)
C8—C51.531 (3)C21A—H21A0.9300
C11—C121.379 (4)C22A—C23A1.343 (8)
C11—C101.387 (4)C22A—H22A0.9300
C11—H110.9300C23A—C24A1.375 (8)
C12—H120.9300C23A—H23A0.9300
C10—C91.389 (4)C24A—C25A1.403 (7)
C10—H100.9300C24A—H24A0.9300
C19—C181.406 (4)C25A—H25A0.9300
C19—H190.9300C21B—C22B1.389 (9)
C16—C171.380 (4)C21B—H21B0.9300
C16—H160.9300C22B—C23B1.377 (12)
C5—C41.578 (3)C22B—H22B0.9300
C17—C181.370 (4)C23B—C24B1.355 (11)
C17—H170.9300C23B—H23B0.9300
C9—H90.9300C24B—C25B1.391 (9)
C7—C41.549 (3)C24B—H24B0.9300
C7—H7A0.9600C25B—H25B0.9300
C7—H7B0.9600
C3—O1—C2106.09 (19)C6—C4—C7106.5 (2)
C5—O2—H298 (2)C3—C4—C5109.78 (19)
C19—C14—C15118.0 (2)C6—C4—C5113.0 (2)
C19—C14—C5125.6 (2)C7—C4—C5110.8 (2)
C15—C14—C5116.3 (2)C17—C18—C19120.8 (3)
N6—C3—O1118.2 (2)C17—C18—H18119.6
N6—C3—C4125.7 (2)C19—C18—H18119.6
O1—C3—C4115.9 (2)N6—C1—C20112.5 (2)
C16—C15—C14121.5 (3)N6—C1—C2103.5 (2)
C16—C15—H15119.3C20—C1—C2114.5 (2)
C14—C15—H15119.3N6—C1—H1108.7
C3—N6—C1107.5 (2)C20—C1—H1108.7
C12—C13—C8121.0 (2)C2—C1—H1108.7
C12—C13—H13119.5C25A—C20—C21B72.4 (5)
C8—C13—H13119.5C25A—C20—C25B54.4 (4)
C13—C8—C9117.8 (2)C21B—C20—C25B117.8 (4)
C13—C8—C5121.1 (2)C25A—C20—C21A115.9 (4)
C9—C8—C5121.1 (2)C21B—C20—C21A78.6 (4)
C12—C11—C10118.9 (2)C25B—C20—C21A96.3 (4)
C12—C11—H11120.6C25A—C20—C1126.4 (3)
C10—C11—H11120.6C21B—C20—C1120.3 (4)
C11—C12—C13120.8 (3)C25B—C20—C1116.6 (4)
C11—C12—H12119.6C21A—C20—C1117.7 (3)
C13—C12—H12119.6C4—C6—H6A109.5
C11—C10—C9120.6 (3)C4—C6—H6B109.5
C11—C10—H10119.7H6A—C6—H6B109.5
C9—C10—H10119.7C4—C6—H6C109.5
C14—C19—C18120.2 (3)H6A—C6—H6C109.5
C14—C19—H19119.9H6B—C6—H6C109.5
C18—C19—H19119.9C22A—C21A—C20119.5 (4)
C17—C16—C15120.0 (3)C22A—C21A—H21A120.2
C17—C16—H16120.0C20—C21A—H21A120.2
C15—C16—H16120.0C23A—C22A—C21A121.3 (5)
O2—C5—C8106.15 (19)C23A—C22A—H22A119.4
O2—C5—C14107.39 (19)C21A—C22A—H22A119.4
C8—C5—C14109.5 (2)C22A—C23A—C24A119.0 (5)
O2—C5—C4108.78 (19)C22A—C23A—H23A120.5
C8—C5—C4109.78 (18)C24A—C23A—H23A120.5
C14—C5—C4114.86 (19)C23A—C24A—C25A120.3 (5)
C18—C17—C16119.5 (2)C23A—C24A—H24A119.9
C18—C17—H17120.3C25A—C24A—H24A119.9
C16—C17—H17120.3C20—C25A—C24A124.0 (5)
C10—C9—C8120.9 (2)C20—C25A—H25A118.0
C10—C9—H9119.5C24A—C25A—H25A118.0
C8—C9—H9119.5C22B—C21B—C20118.9 (6)
C4—C7—H7A109.5C22B—C21B—H21B120.5
C4—C7—H7B109.5C20—C21B—H21B120.5
H7A—C7—H7B109.5C23B—C22B—C21B121.4 (7)
C4—C7—H7C109.5C23B—C22B—H22B119.3
H7A—C7—H7C109.5C21B—C22B—H22B119.3
H7B—C7—H7C109.5C24B—C23B—C22B118.7 (8)
O1—C2—C1104.63 (19)C24B—C23B—H23B120.7
O1—C2—H2A110.8C22B—C23B—H23B120.7
C1—C2—H2A110.8C23B—C24B—C25B122.0 (8)
O1—C2—H2B110.8C23B—C24B—H24B119.0
C1—C2—H2B110.8C25B—C24B—H24B119.0
H2A—C2—H2B108.9C24B—C25B—C20118.3 (6)
C3—C4—C6111.8 (2)C24B—C25B—H25B120.9
C3—C4—C7104.6 (2)C20—C25B—H25B120.9
C2—O1—C3—N61.0 (3)C14—C5—C4—C665.4 (3)
C2—O1—C3—C4176.6 (2)O2—C5—C4—C7−54.8 (3)
C19—C14—C15—C16−0.6 (4)C8—C5—C4—C761.0 (3)
C5—C14—C15—C16−179.0 (3)C14—C5—C4—C7−175.2 (2)
O1—C3—N6—C10.6 (3)C16—C17—C18—C190.3 (5)
C4—C3—N6—C1−174.6 (2)C14—C19—C18—C17−0.8 (4)
C12—C13—C8—C90.1 (4)C3—N6—C1—C20−125.9 (2)
C12—C13—C8—C5179.9 (2)C3—N6—C1—C2−1.8 (3)
C10—C11—C12—C130.9 (4)O1—C2—C1—N62.3 (3)
C8—C13—C12—C11−0.8 (4)O1—C2—C1—C20125.2 (2)
C12—C11—C10—C9−0.4 (4)N6—C1—C20—C25A−109.5 (5)
C15—C14—C19—C180.9 (4)C2—C1—C20—C25A132.7 (5)
C5—C14—C19—C18179.2 (3)N6—C1—C20—C21B−19.8 (5)
C14—C15—C16—C170.1 (5)C2—C1—C20—C21B−137.6 (5)
C13—C8—C5—O2−154.6 (2)N6—C1—C20—C25B−173.3 (4)
C9—C8—C5—O225.2 (3)C2—C1—C20—C25B68.9 (5)
C13—C8—C5—C14−38.9 (3)N6—C1—C20—C21A72.9 (4)
C9—C8—C5—C14140.8 (2)C2—C1—C20—C21A−44.9 (4)
C13—C8—C5—C488.0 (3)C25A—C20—C21A—C22A2.0 (7)
C9—C8—C5—C4−92.2 (3)C21B—C20—C21A—C22A−61.8 (6)
C19—C14—C5—O2−118.7 (3)C25B—C20—C21A—C22A55.3 (6)
C15—C14—C5—O259.6 (3)C1—C20—C21A—C22A179.9 (4)
C19—C14—C5—C8126.5 (3)C20—C21A—C22A—C23A−0.4 (9)
C15—C14—C5—C8−55.2 (3)C21A—C22A—C23A—C24A−0.6 (10)
C19—C14—C5—C42.4 (4)C22A—C23A—C24A—C25A0.1 (12)
C15—C14—C5—C4−179.3 (2)C21B—C20—C25A—C24A64.7 (8)
C15—C16—C17—C180.1 (5)C25B—C20—C25A—C24A−81.3 (8)
C11—C10—C9—C8−0.3 (4)C21A—C20—C25A—C24A−2.6 (9)
C13—C8—C9—C100.4 (4)C1—C20—C25A—C24A179.8 (6)
C5—C8—C9—C10−179.4 (2)C23A—C24A—C25A—C201.7 (12)
C3—O1—C2—C1−2.1 (3)C25A—C20—C21B—C22B−50.5 (7)
N6—C3—C4—C6−157.5 (2)C25B—C20—C21B—C22B−19.6 (10)
O1—C3—C4—C627.3 (3)C21A—C20—C21B—C22B71.6 (7)
N6—C3—C4—C787.7 (3)C1—C20—C21B—C22B−172.8 (6)
O1—C3—C4—C7−87.5 (3)C20—C21B—C22B—C23B8.8 (14)
N6—C3—C4—C5−31.2 (3)C21B—C22B—C23B—C24B3.3 (16)
O1—C3—C4—C5153.5 (2)C22B—C23B—C24B—C25B−4.1 (16)
O2—C5—C4—C360.2 (2)C23B—C24B—C25B—C20−7.0 (13)
C8—C5—C4—C3176.0 (2)C25A—C20—C25B—C24B55.8 (7)
C14—C5—C4—C3−60.2 (3)C21B—C20—C25B—C24B18.8 (9)
O2—C5—C4—C6−174.25 (19)C21A—C20—C25B—C24B−61.7 (7)
C8—C5—C4—C6−58.5 (2)C1—C20—C25B—C24B173.0 (6)
D—H···AD—HH···AD···AD—H···A
O2—H2···N60.86 (3)1.89 (3)2.712 (3)159 (3)
C1—H1···Cg2i0.982.803.771 (3)173
C2—H2A···Cg2ii0.972.863.589 (3)132
C21A—H21A···Cg10.932.813.058 (4)97
C24B—H24B···Cg3iii0.932.873.776 (6)166
C24B—H24B···Cg4iii0.932.973.785 (9)147
Table 1

Hydrogen-bond geometry (Å, °)

Cg2, Cg3 and Cg4 are the centroids of the C8–C13, C14–C19 and C20–C25 rings, respectively.

D—H⋯A D—HH⋯A DA D—H⋯A
O2—H2⋯N60.86 (3)1.89 (3)2.712 (3)159 (3)
C1—H1⋯Cg2i 0.982.803.771 (3)173
C2—H2ACg2ii 0.972.863.589 (3)132
C24B—H24BCg3iii 0.932.873.776 (6)166
C24B—H24BCg4iii 0.932.973.785 (9)147

Symmetry codes: (i) ; (ii) ; (iii) .

  3 in total

1.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

2.  C 2-Symmetric chiral bis(oxazoline)-metal complexes in catalytic asymmetric synthesis.

Authors:  Arun K Ghosh; Packiarajan Mathivanan; John Cappiello
Journal:  Tetrahedron Asymmetry       Date:  1998-01-16

Review 3.  Chiral bis(oxazoline) copper(II) complexes: versatile catalysts for enantioselective cycloaddition, Aldol, Michael, and carbonyl ene reactions.

Authors:  J S Johnson; D A Evans
Journal:  Acc Chem Res       Date:  2000-06       Impact factor: 22.384

  3 in total

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