Results 71 to 80 of about 352,111 (240)
Autoxidation of lipids in parchment [PDF]
, 2009 Historic parchment is a macromolecular material, which is complex due to its natural origin, inhomogeneity of the skin structure, unknown environmental history and potential localised degradation.
Cassar, M. +5 more
core
Ketone Diester Ingestion Impairs Time-Trial Performance in Professional Cyclists
Frontiers in Physiology, 2017 We investigated the effect of pre- “race” ingestion of a 1,3-butanediol acetoacetate diester on blood ketone concentration, substrate metabolism and performance of a cycling time trial (TT) in professional cyclists.
Jill J. Leckey +7 more
doaj +1 more source
Molecules, 2011 Methods for the asymmetric transfer hydrogenation (ATH) of ketones and imines are still being intensively studied and developed. Of foremost interest is the use of Noyori’s [RuCl(η6-arene)(N-TsDPEN)] complexes in the presence of a hydrogen donor (i-PrOH,
Libor Červený +3 more
doaj +1 more source
The Allylic Alkylation of Ketone Enolates
ChemistryOpen, 2020 The palladium‐catalyzed allylic alkylation of non‐stabilized ketone enolates was thought for a long time to be not as efficient as the analogous reactions of stabilized enolates, e. g. of malonates and β‐ketoesters.
Dr. Lukas Junk, Prof. Dr. Uli Kazmaier
doaj +1 more source
In situ generation of Mes2Mg as a non-nucleophilic carbon-centred base reagent for the efficient one-pot conversion of ketones to silyl enol ethers [PDF]
, 2008 Treatment of commercially available MesMgBr with 1,4-dioxane produces the key Mes2Mg reagent in situ which then mediates the deprotonation of ketones to deliver trimethylsilyl enol ethers, at readily accessible temperatures and without any nucleophilic ...
Hayes, Douglas. +2 more
core +1 more source
The iso-Nazarov reaction [PDF]
, 2017 The construction of five-membered rings is essential in organic chemistry. In this context, pentannulation reactions that provide a straightforward access to cyclopentenones are of particular interest, as these structures are not only embedded in ...
Marsili, Lucía A. +2 more
core +1 more source
Ketones and the cardiovascular system
Nature Cardiovascular Research, 2023 G. Lopaschuk, J. Dyck
semanticscholar +1 more source
ChemElectroChemThe aim of this investigation was to explore the possibility to perform an asymmetric reduction, utilising a CBS‐type catalyst, of prochiral aryl methyl ketones under electrochemical conditions to generate the needed BH3 upon oxidation of NaBH4 with in ...
Marvin L. Abraham +1 more
doaj +1 more source
Nutritional Ketosis Increases NAD+/NADH Ratio in Healthy Human Brain: An in Vivo Study by 31P-MRS
Frontiers in Nutrition, 2018 Ketones represent an important alternative fuel for the brain under glucose hypo-metabolic conditions induced by neurological diseases or aging, however their metabolic consequences in healthy brain remain unclear.
Lijing Xin +8 more
doaj +1 more source
Manganese carbonyl-mediated reactions of azabutadienes with phenylacetylene, methyl acrylate and other unsaturated molecules [PDF]
, 2004 Reaction of PhCH₂Mn(CO)₅ with l,4-di-aryl-1-aza-1,3-butadienes gave substituted pyrrolinonyl rings which were η⁴-coordinated to a Mn(CO)₃ group. These are formed by intramolecular CO insertion into a (non-isolated) cyclomanganated intermediate, followed ...
Mace, Wade +3 more
core +2 more sources