Results 61 to 70 of about 114,544 (214)

Opportunities Offered by Chiral η6-Arene/N-Arylsulfonyl-diamine-RuII Catalysts in the Asymmetric Transfer Hydrogenation of Ketones and Imines

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, Marek Kuzma, Petr Kačer, Jiří Václavík   +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

Sulfamide-amine alcohol catalyzed enantioselective alkynylation of aromatic ketones

, 2005
The new readily available sulfamide-amine alcohol 11 was found to be effective in catalyzing enantioselective phenylacetylene addition to aromatic ketones without using another central metal, providing the chiral tertiary propargylic alcohols in good ...
Lu, SW, Wu, F, 万伯顺, Mao, JC, Wan, BS   +4 more
core   +1 more source

Investigation Towards the Asymmetric CBS‐Catalysed Reduction of Aryl Methyl Ketones with Electrochemically in Situ Generated BH3

ChemElectroChem
The 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, Prof. Dr. Gerhard Hilt   +1 more
doaj   +1 more source

Pharmacological increases in circulating ketones fail to alleviate the hypertrophic cardiomyopathy present in the Tafazzin knockdown mouse model of Barth syndrome

Journal of Pharmacy & Pharmaceutical Sciences
ObjectiveMutations in the tafazzin gene lead to impaired remodeling of cardiolipin, thereby impairing mitochondrial function and causing Barth syndrome (BTHS), a rare X-linked genetic disorder characterized by cardiomyopathy.
Tanin Shafaati, Tanin Shafaati, Tanin Shafaati, Amanda A. Greenwell, Amanda A. Greenwell, Amanda A. Greenwell, Christina T. Saed, Christina T. Saed, Christina T. Saed, Seyed Amirhossein Tabatabaei Dakhili, Seyed Amirhossein Tabatabaei Dakhili, Seyed Amirhossein Tabatabaei Dakhili, Jordan S. F. Chan, Jordan S. F. Chan, Jordan S. F. Chan, Linyue Dong, Linyue Dong, Magnus J. Stenlund, Magnus J. Stenlund, Magnus J. Stenlund, Sally R. Ferrari, Sally R. Ferrari, Sally R. Ferrari, Ruth Han, Ruth Han, Jennifer Kruger, Farah Eaton, Farah Eaton, Farah Eaton, Keshav Gopal, Keshav Gopal, Keshav Gopal, Sandra T. Davidge, Sandra T. Davidge, Sandra T. Davidge, Gavin Y. Oudit, Gavin Y. Oudit, Gavin Y. Oudit, John R. Ussher, John R. Ussher, John R. Ussher   +40 more
doaj   +1 more source

Predictive Factors for Acute and Complicated Appendicitis in Children: A Prospective Study

Journal of Pediatric Emergency and Intensive Care Medicine
Introduction: Acute appendicitis is one of the most common surgical emergencies in children, where early diagnosis is crucial to reducing morbidity and mortality.
Esra Tepedelen Bozdağ, Ali Onur Erdem, Arzu Ateş, Şule Demir, Ayça Tuzcu, İbrahim Meteoğlu, Aykut Çağlar   +6 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, Özlem Ipek, Maurice Beaumont, Maya Shevlyakova, Nicolas Christinat, Mojgan Masoodi, Norman Greenberg, Rolf Gruetter, Bernard Cuenoud   +8 more
doaj   +1 more source

Scalable, Wasteless, and Energy-Efficient Diastereoselective Electrocatalytic Hydrogenation of Cyclic Ketones Using Proton-Exchange Membrane Reactor

, 2022
We report the diastereoselective electrocatalytic hydrogenation of cyclic ketones using a proton-exchange membrane (PEM) reactor. Adsorbed monoatomic hydrogen species (Hads) generated from protons at the triple-phase boundary of the cathode were found to
Atsushi, Fukazawa, Tomohiro, Suzuki, Naoki, Shida, Mahito, Atobe, Junko N., Kondo, Yugo, Shimizu   +5 more
core   +1 more source

Aldehydes and Ketones Influence Reactivity and Selectivity in Nickel-Catalyzed Suzuki-Miyaura Reactions

, 2019
We show that the energetically-favorable coordination of aldehydes and ketones – but not esters – to nickel(0) during Suzuki-Miyaura reactions can lead either to exquisite selectivity and enhanced reactivity, or to the inhibitionof the reaction.
Alasdair, Cooper, Sonia, Bajo, David, Leonard, Paul, Burton, David, Nelson   +4 more
core   +1 more source

α-Functionalization of Ketones via a Nitrogen Directed Oxidative Umpolung

, 2020
Reversing the polarity in molecules is a versatile tool for expanding the boundaries of structural space. Despite a manifold of different umpolung methods available today, overcoming the inherent reactivity still remains a constant challenge in organic ...
Gabriel M., Kiefl, Tanja, Gulder
core   +1 more source