Search results for "Sulfoxide"
showing 10 items of 313 documents
CCDC 1042614: Experimental Crystal Structure Determination
2015
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310
CCDC 1579870: Experimental Crystal Structure Determination
2018
Related Article: Samia Benmansour, Antonio Hernández Paredes, Carlos J. Gómez García|2018|J.Coord.Chem.|71|845|doi:10.1080/00958972.2017.1420182
CCDC 1579872: Experimental Crystal Structure Determination
2018
Related Article: Samia Benmansour, Antonio Hernández Paredes, Carlos J. Gómez García|2018|J.Coord.Chem.|71|845|doi:10.1080/00958972.2017.1420182
CCDC 2054147: Experimental Crystal Structure Determination
2021
Related Article: Samia Benmansour, Antonio Hern��ndez-Paredes, Mar��a Bayona-Andr��s, Carlos J. G��mez-Garc��a|2021|Molecules|26|1190|doi:10.3390/molecules26041190
Anaerobic Palladium-Catalyzed Chemoselective Oxidation of Allylic and Benzylic Alcohols with α-Bromo Sulfoxide as a Co-Oxidant.
2007
A chemoselective palladium-catalyzed anaerobic oxidation of allylic and benzylic alcohols using an α-bromo sulfoxide as a co-oxidant is described for the first time. The catalyst system is simple and has a long life because of the allowance of phosphane ligands under the non-aerobic conditions. The advantages of the described method include no overoxidation of primary alcohols to carboxylic acids because of the mild conditions applied, the tolerance of oxygen-sensitive functionalities such as a carbon-carbon double bond, an organothio group, or a diorganoamino group and the effective preparation of α,β-unsaturated aldehydes and ketones, resulting from the oxidation of primary and secondary …
Chlorido(dimethyl sulfoxide)(pyridine-2-thiolato N-oxide-κ2S,O)platinum(II)
2008
The asymmetric unit of the title compound, [Pt(C5H4NOS)Cl(C2H6OS)], contains two independent complex molecules having similar geometries. Each PtII atom is four-coordinated in a distorted square-planar geometry by S and O atoms of one pyridine N-oxide ligand, the S atom of one dimethyl sulfoxide molecule and one terminal Cl− ion. The molecules are linked into a three-dimensional framework by C—H...O and C—H...Cl hydrogen bonds.
Environmental analysis of chlorinated aromatic thioethers, sulphoxides and sulphones
1993
Abstract Chlorinated aromatic thioethers discussed here are polychlorinated dibenzothiophenes, thianthrenes and diphenylsulphides. Relatively little is known about their occurrence, behaviour and fate in the environment. Polychlorinated dibenzothiophenes and diphenylsulphides have recently been found to be formed in waste combustion and analysed in pulp mill effluents. Chlorinated sulphoxides and sulphones are usually metabolites or oxidation products of different chlorinated aromatic compounds. Different gas chromatographic-mass spectrometric techniques are used in the analysis of the chlorinated thioethers. The sulphoxides and sulphones, because of their higher polarity, can be isolated f…
New acetylenes fromChrysanthemum coronarium L.
1990
The investigation of the aerial parts of Chrysanthemum coronarium yielded, in addition to several known compounds, two new acetylenic sulfoxides 9 and 10, and a new thiophene spiroacetal enol ether 11. Their structures were deduced by spectroscopic and chemical methods.
Coping with Oxygen
2010
Sometime before 2.7 BYA, a new and biologically toxic substance began to appear in the environment. Biologically produced dioxygen, O2, probably first began to accumulate in small pools or layers above cyanobacterial mats. These photosynthesizers must have already developed ways to at least partially deal with dioxygen and, with greater difficulty, the reactive oxygen species (ROS) derived from it (see Chap. 1 and below). But for primitive anaerobes in the vicinity, these new substances must have been especially toxic. Nevertheless, it is clear that they evolved ways to cope with the new threats. One way was to simply avoid dioxygen altogether.
Conformational stability of oligoferrocene oligoamide foldamers
2016
Abstract Organometallic oligoamides built from three to four ferrocene amino acid units ( H-Fca-OH , 1-amino-1′-ferrocene carboxylic acid) fold into hydrogen bonded secondary structures featuring eight-membered rings by cooperative hydrogen bonds. NMR studies and DFT calculations (CAM-B3LYP, LANL2DZ, IEFPCM (THF)) reveal that the organometallic zigzag foldamer structures are highly resistant toward denaturation by hydrogen bond acceptors such as dimethyl sulfoxide and 2,4-lutidine. Replacing one ferrocene amino acid unit by the organic α -amino acid glycine at the C -terminal end (Fca → Gly) significantly destabilizes the secondary zigzag structure facilitating denaturation by DMSO. Highly …