ChemInform Abstract: TRANS-DIBROMOTETRAKIS(DIMETHYL SULFOXIDE)RUTHENIUM(II): A VERSATILE STARTING MATERIAL FOR THE SYNTHESIS OF RUTHENIUM(II) COMPLEXES FOR USE AS MOLECULAR OXYGEN OXIDATION CATALYSTS

1985 ◽  
Vol 16 (34) ◽  
Author(s):  
D. P. RILEY
Keyword(s):  
Dimethyl Sulfoxide ◽  
Molecular Oxygen ◽  
Starting Material ◽  
Oxidation Catalysts ◽  
Oxygen Oxidation

scholarly journals Diosgenin hemihydrate

2012 ◽  
Vol 68 (8) ◽  
pp. o2357-o2357 ◽  
Author(s):  
María-Guadalupe Hernández Linares ◽  
Sylvain Bernès ◽  
Marcos Flores-Alamo ◽  
Gabriel Guerrero-Luna ◽  
Anselmo A. Martínez-Gallegos
Keyword(s):  
Crystal Structure ◽  
Water Molecule ◽  
Dimethyl Sulfoxide ◽  
Starting Material ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Acta Cryst ◽  
X Ray ◽  
Hydroxy Groups ◽  
Hydrogen Bonded

Diosgenin [or (22R,25R)-spirost-5-en-3β-ol] is the starting material of the Marker degradation, a cheap semi-synthesis of progesterone, which has been designated as an International Historic Chemical Landmark. Thus far, a single X-ray structure for diosgenin is known, namely its dimethyl sulfoxide solvate [Zhanget al.(2005).Acta Cryst.E61, o2324–o2325]. We have now determined the structure of the hemihydrate, C27H42O3·0.5H2O. The asymmetric unit contains two diosgenin molecules, with quite similar conformations, and one water molecule. Hydroxy groups in steroids and water molecules form O—H...O hydrogen-bondedR54(10) ring motifs. Fused edge-sharingR(10) rings form a backbone oriented along [100], which aggregates the diosgenin molecules in the crystal structure.

Oxidative Desulfurization of HDS Diesel Using the Aldehyde/Molecular Oxygen Oxidation System

2007 ◽  
Vol 21 (6) ◽  
pp. 3420-3424 ◽  
Author(s):  
Tumula Venkateshwar Rao ◽  
Bir Sain ◽  
Sudha Kafola ◽  
Bhagat Ram Nautiyal ◽  
Yogendra Kumar Sharma ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Oxidative Desulfurization ◽  
Oxygen Oxidation ◽  
Oxidation System

Palladium catalyzed oxidation of renewable terpenes with molecular oxygen: oxidation of α-bisabolol under chloride-free conditions

2014 ◽  
Vol 4 (7) ◽  
pp. 2016-2022 ◽  
Author(s):  
Luciana A. Parreira ◽  
Luciano Menini ◽  
Elena V. Gusevskaya
Keyword(s):  
Molecular Oxygen ◽  
Aerobic Oxidation ◽  
Palladium Catalyzed ◽  
Oxygen Oxidation ◽  
Catalyzed Oxidation

Several novel compounds potentially useful as components of synthetic perfumes and cosmetics were obtained from α-bisabololviapalladium-catalyzed aerobic oxidation.

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