3-(4-Bromobenzoyl)-N-phenyl-1,3-oxazolidin-2-imine

2006 ◽  
Vol 62 (4) ◽  
pp. o1306-o1307
Author(s):  
Taek Hyeon Kim ◽  
Jung Hee Jang ◽  
Uk Lee
Keyword(s):  
Title Compound ◽  
Room Temperature ◽  
Crystallographic Analysis ◽  
X Ray ◽  
Compound C

The title compound, C17H15BrN2O2, was prepared by the reaction of 2-anilino-4-methyl-2-oxazoline with 4-bromobenzoyl chloride in the presence of potassium tert-butoxide at room temperature. X-ray crystallographic analysis shows that the endo-substituted product is formed.

A Novel Alkali-Metal Hydrido-tris(pyrazolyl)borate (Tp*) Complex. Isolation and Crystal Structure of [(Me2CO)3(NaTp*)2]

2014 ◽  
Vol 69 (7) ◽  
pp. 793-798
Author(s):  
Laurent Plasseraud ◽  
Hélène Cattey
Keyword(s):  
Crystal Structure ◽  
Alkali Metal ◽  
Sodium Hydroxide ◽  
Title Compound ◽  
Room Temperature ◽  
Crystallographic Analysis ◽  
Monoclinic Space Group ◽  
Large Excess ◽  
X Ray ◽  
Acetone Water

The title compound was isolated from the treatment of Tp*Sn(Cl)2Bu (1) with a large excess of sodium hydroxide in a mixture of acetone-water at room temperature. [(Me2CO)3(NaTp*)2] (2) crystallizes at 4 °C as prismatic colorless crystals, in the monoclinic space group P21/c with Z = 4, a = 12.2837(6), b = 24.3197(12), c = 16.9547(8) Å, β = 110.017(1)°, and V = 4759.0(4) Å3. The X-ray crystallographic analysis revealed a dinuclear unit in which two Tp*Na moieties are held together by three bridging acetone molecules acting as oxygen-based donors.

scholarly journals 2-Deoxy-2-fluoro-2-C-methyl-D-ribono-1,4-lactone (fluoromethylrib)

2006 ◽  
Vol 62 (4) ◽  
pp. o1208-o1210
Author(s):  
Samuel Parker ◽  
David Watkin ◽  
Benjamin Mayes ◽  
Richard Storer ◽  
Sarah Jenkinson ◽  
...  
Keyword(s):  
Title Compound ◽  
Crystallographic Analysis ◽  
Ring Size ◽  
X Ray ◽  
Compound C ◽  
Relative Stereochemistry

The relative stereochemistry of the fluoro substituent (as ribo) and the ring size of the lactone (as five) in the title compound, C6H9FO4, have been established by X-ray crystallographic analysis.

Gelsevirine hydrochloride

2007 ◽  
Vol 63 (3) ◽  
pp. o1369-o1371
Author(s):  
Hai-Bin Han ◽  
Zhong Yuan ◽  
Kai Xiao ◽  
Min-Qin Chen ◽  
Liming Zhang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Folk Medicine ◽  
Indole Alkaloid ◽  
Crystallographic Analysis ◽  
Terpenoid Indole Alkaloid ◽  
X Ray ◽  
Compound C

At 293 K, a crystalline terpenoid indole alkaloid, the title compound, C21H25N2O3 +·Cl−, has been isolated from Gelsemium elegans Benth, a Chinese folk medicine plant. Structural ambiguities have been resolved by the X-ray crystallographic analysis. Intramolecular C—H...O and intermolecular C—H...Cl, C—H...O and N—H...Cl hydrogen bonds help to stabilize the structure.

scholarly journals 5-Amino-5-deoxy-2-C-hydroxymethyl-2,3-O-isopropylidene-L-lyxono-1,5-lactam

2007 ◽  
Vol 63 (3) ◽  
pp. o1409-o1411
Author(s):  
Michela Simone ◽  
George W. J. Fleet ◽  
Richard Bream ◽  
David J. Watkin
Keyword(s):  
Absolute Configuration ◽  
Catalytic Hydrogenation ◽  
Title Compound ◽  
Crystallographic Analysis ◽  
Starting Material ◽  
Relative Configuration ◽  
X Ray ◽  
Compound C ◽  
The Absolute

The relative configuration of the title compound, C9H14NO5, formed by catalytic hydrogenation of an azidolactone, has been established by X-ray crystallographic analysis. The absolute configuration was determined by the use of 2,3-O-isopropylidene-L-lyxono-1,4-lactone as the carbohydrate starting material.

scholarly journals (2S,4S)-4-Azido-1-benzyl-2-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]pyrrolidine

2006 ◽  
Vol 62 (7) ◽  
pp. o2983-o2985 ◽  
Author(s):  
Amy K. S. Chesterton ◽  
Sarah F. Jenkinson ◽  
Nigel A. Jones ◽  
George W. J. Fleet ◽  
David J. Watkin
Keyword(s):  
Absolute Configuration ◽  
Title Compound ◽  
Crystal Packing ◽  
Crystallographic Analysis ◽  
Starting Material ◽  
X Ray ◽  
Compound C ◽  
Relative Stereochemistry ◽  
The Absolute

The relative stereochemistry of the title compound, C16H22N4O2, a key intermediate in the synthesis of 3-deoxy imino sugars, was firmly established by X-ray crystallographic analysis. The absolute configuration was inferred from the starting material, D-galactose. There are no unusual crystal packing features.

4-Bromobenzaldehyde O-(2-ethoxybenzyl)oxime

2006 ◽  
Vol 62 (4) ◽  
pp. o1657-o1658
Author(s):  
Er-Bing Yang ◽  
Lei Wang ◽  
Zheng-Ming Li ◽  
Hai-Bin Song
Keyword(s):  
Double Bond ◽  
Title Compound ◽  
Crystallographic Analysis ◽  
X Ray ◽  
Compound C

The title compound, C16H16BrNO2, is a potential new herbicide containing an oxime C=N double bond. X-ray crystallographic analysis reveals that the double bond is in the anti form.

scholarly journals Powder study of 3-azabicyclo[3.3.1]nonane-2,4-dione form 2

2006 ◽  
Vol 62 (7) ◽  
pp. o3046-o3048 ◽  
Author(s):  
Ashley T Hulme ◽  
Philippe Fernandes ◽  
Alastair Florence ◽  
Andrea Johnston ◽  
Kenneth Shankland
Keyword(s):  
Crystal Structure ◽  
Simulated Annealing ◽  
Hydrogen Bonds ◽  
Powder Diffraction ◽  
Title Compound ◽  
Variable Temperature ◽  
Polycrystalline Sample ◽  
Asymmetric Unit ◽  
X Ray ◽  
Compound C

A polycrystalline sample of a new polymorph of the title compound, C8H11NO2, was produced during a variable-temperature X-ray powder diffraction study. The crystal structure was solved at 1.67 Å resolution by simulated annealing from laboratory powder data collected at 250 K. Subsequent Rietveld refinement yielded an R wp of 0.070 to 1.54 Å resolution. The structure contains two molecules in the asymmetric unit, which form a C 2 2(8) chain motif via N—H...O hydrogen bonds.

4-(Bromomethyl)benzophenone

2007 ◽  
Vol 63 (3) ◽  
pp. o1188-o1189 ◽  
Author(s):  
Wei-Jian Xu ◽  
Yang-Ling Zang ◽  
Guo-Liang Wu ◽  
Sheng-Pei Su ◽  
De-Yue Qiu
Keyword(s):  
Crystal Structure ◽  
Carbon Tetrachloride ◽  
Dihedral Angle ◽  
Structure Analysis ◽  
Title Compound ◽  
Crystal Packing ◽  
Crystal Structure Analysis ◽  
X Ray ◽  
Compound C ◽  
Phenyl Rings

The title compound, C14H11BrO, was synthesized by the reaction of 4-methylbenzophenone and bromine in carbon tetrachloride. X-ray crystal structure analysis reveals that the benzene and phenyl rings form a dihedral angle of 59.53 (6)°, and the crystal packing is stabilized by intermolecular C—H...π interactions.

Structural Systematics of Rare Earth Complexes. VII. Crystal Structure of Bis(2,2'/6',2␛-Terpyridinium) Octaaquaterbium(III) Heptachloride Hydrate

1994 ◽  
Vol 47 (2) ◽  
pp. 391 ◽  
Author(s):  
CJ Kepert ◽  
BW Skeleton ◽  
AH White
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Single Crystal ◽  
Structural Characterization ◽  
Title Compound ◽  
Room Temperature ◽  
Chloride Ions ◽  
Full Matrix ◽  
X Ray

The room-temperature single-crystal X-ray structural characterization of the title compound (tpyH2)2[Tb(OH2)8]Cl7.~2⅓H2O is recorded. Crystals are triclinic, Pī , a 17.063(5), b 16.243(3), c 7.878(3) Ǻ, α 84.78(2), β 84.39(3), γ 87.81(2)°, Z = 2 formula units; 3167 'observed' diffractometer reflections were refined by full-matrix least-squares procedures to a residual of 0.057. Notable features of interest of the compound are the 'chelation' of chloride ions by the terpyridinium cations , and the existence of a free [Tb(OH2)8]2+ cation in the presence of an abundance of chloride ions.

Boron Chelates and Boron-Metal Chelates, X [1]. 3-(2-Hydroxyphenyl)-2,2-diphenyl-1-oxa-3-azonia-2-borata-naphthalene-methanol (1/1): Synthesis, Spectroscopic Investigations and Crystal Structure

1982 ◽  
Vol 37 (11) ◽  
pp. 1450-1455 ◽  
Author(s):  
Rudolf Allmann ◽  
Eberhard Hohaus ◽  
Stanislaw Olejnik
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Structure Analysis ◽  
Title Compound ◽  
Chelate Ring ◽  
Boron Chelates ◽  
X Ray ◽  
Membered Chelate Ring ◽  
Compound C ◽  
Overall Ratio

The title compound, C25H20BNO2 · CH3OH, was examined by UV, IR, 1H, and 13C NMK spectroscopy as well as by thermogravimetry and X-ray structure analysis (Pbnb, a = 8.815, b = 17.309, c=28.992 Å, R= 5.5%). These investigations show the six-membered chelate ring (chelate A) to exist as formulated in [2] and not as a five-membered chelate ring B. One methanol molecule connects two chelate molecules by hydrogen bonds, resulting in an overall ratio of chelate to methanol of 1 : 1.

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