Results 21 to 30 of about 10,973 (280)
Mild and selective catalytic oxidation of organic substrates by a carbon nanotube-rhodium nanohybrid [PDF]
, 2015 International audienceA heterogeneous catalyst was assembled by stabilization of rhodium nanoparticles on carbon nanotubes. The nanohybrid was used for the catalytic aerobic oxidation of diverse substrates such as hydroquinones, hydroxylamines, silanes ...
Donck, Simon +8 more
core +2 more sources
Molecules, 2016 Alkyl aryl sulfones were prepared in high yields via the reaction of N-arylsulfonyl hydroxylamines with electron-deficient alkenes. These reactions have the advantages of simplicity, easily available starting materials and mild reaction conditions.
Yunhui Bin, Ruimao Hua
doaj +1 more source
Selective conversion of nitroarenes using a carbon nanotube-ruthenium nanohybrid [PDF]
, 2015 International audienceRuthenium nanoparticles were assembled on carbon nanotubes and the resulting nanohybrid was used in the hydrazine-mediated catalytic hydrogenation of various nitroarenes, at room temperature.
Boudet, Caroline +7 more
core +4 more sources
A direct approach to amines with remote stereocentres by enantioselective CuH-catalysed reductive relay hydroamination [PDF]
, 2015 Amines with remote stereocentres (stereocentres that are three or more bonds away from the C–N bond) are important structural elements in many pharmaceutical agents and natural products.
Buchwald, Stephen Leffler +2 more
core +1 more source
Polyalkoxy Nitrones as Chiral Building Blocks in Asymmetric Synthesis
Molecules, 1999 Optically active nitrones derived from both aldoses and dialdoses add metallated heterocycles in a stereocontrolled way depending on the nature of the Lewis acid used as a precomplexing agent of the nitrone.
Tomás Tejero, Pedro Merino
doaj +1 more source
International Journal of Electrochemical Science, 2021 Nitroxyl radical catalysts oxidize alcohols under an applied electric potential. It is possible to quantify the alcohol concentration from the resulting oxidation current.
Sachiko Komatsu +10 more
doaj +1 more source
Asymmetric additions to dienes catalysed by a dithiophosphoric acid. [PDF]
, 2011 Chiral Brønsted acids (proton donors) have been shown to facilitate a broad range of asymmetric chemical transformations under catalytic conditions without requiring additional toxic or expensive metals.
Hamilton, Gregory +4 more
core +2 more sources
CHIMIA, 2017 Nitrones are key intermediates for the total synthesis of nitrogen-containing natural products and analogues. The direct oxidation of the corresponding N,N-disubstituted hydroxylamines is one of the most straightforward methods to access such ...
Camilla Matassini, Francesca Cardona
doaj +1 more source
ChemistryOpen, 2022 A precursor‐directed approach to access N‐hydroxyalkyl phenylbenzoisoquinolindiones (PBIQs) has been developed. Incubation of plant material of Xiphidium caeruleum with hydroxylamines of various chain lengths (C2, C4, C6, C8, C10 and C12) resulted in 11 ...
Prof. Dr. Yu Chen +3 more
doaj +1 more source
Tuning the Chemoselective Hydrogenation of Nitrostyrenes Catalyzed by Ionic Liquid-Supported Platinum Nanoparticles [PDF]
, 2012 International ...
Andanson, Jean-Michel +2 more
core +2 more sources