Results 81 to 90 of about 114,544 (214)

The Role of Exogenous Ketones in Road Cycling: Evidence, Mechanisms, and Performance Claims

open access: yesPhysiologia
Background: Ketone body supplementation has emerged as a potential ergogenic aid in cycling. Exogenous ketones, primarily in the form of beta-hydroxybutyrate, offer an alternative fuel source, bypassing the need for strict ketogenic diets.
Sebastian Sitko
doaj   +1 more source

Stereoselective synthesis of tricyclic compounds by intramolecular palladium-catalyzed addition of aryl iodides to carbonyl groups

open access: yesBeilstein Journal of Organic Chemistry, 2016
Starting from γ-ketoesters with an o-iodobenzyl group we studied a palladium-catalyzed cyclization process that stereoselectively led to bi- and tricyclic compounds in moderate to excellent yields.
Jakub Saadi   +5 more
doaj   +1 more source

Ketogenic diet therapy for epilepsy during pregnancy and lactation: An international survey exploring clinician perspectives

open access: yesEpilepsia Open
Objective Ketogenic diet therapies (KDTs) are increasingly used as a treatment for people with epilepsy of childbearing potential (PWECP) and glucose transporter type 1 deficiency syndrome (Glut1DS).
Kelly Faltersack   +12 more
doaj   +1 more source

The Role of Beta-Hydroxybutyrate in Mitigating the Inflammatory and Metabolic Consequences of Uric Acid

open access: yesMetabolites
Background: Uric acid (UA), a metabolite of purine and fructose metabolism, is linked to inflammation and metabolic disorders, including gout and cardiovascular disease.
Nicole P. Remund   +12 more
doaj   +1 more source

Dimethylamine as the key intermediate generated in situ from dimethylformamide (DMF) for the synthesis of thioamides

open access: yesBeilstein Journal of Organic Chemistry, 2015
An improved and efficient method for the synthesis of thioamides is presented. For this transformation, dimethylamine as the key intermediate is generated in situ from dimethylformamide (DMF).
Weibing Liu, Cui Chen, Hailing Liu
doaj   +1 more source

High Enantioselective Organocatalytic Asymmetric Direct Aldol Reactions of Aldehydes with Long-Chain Aliphatic Ketones

open access: yes, 2009
Asymmetric organocatalysis have been developed explosively, since the pioneering work on proline-catalyzed asymmetric direct Aldol reaction reported by List, Barbas and coworkers[1].
高强, 李军, 李灿
core  

Friedel–Crafts acylation of arenes with carboxylic acids using polystyrene-supported aluminum triflate [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
Cross-linked polystyrene-supported aluminum triflate (Ps–Al(OTf)3) has been shown to be a mild, efficient, and chemoselective heterogeneous Lewis acid catalyst for the acylation of aromatic compounds.
KAVEH PARVANAK BOROUJENI   +1 more
doaj  

Enantioselective cyanosilylation of ketones catalyzed by double-activation catalysts with N-oxides

open access: yes, 2004
Enantioselective addition of trimethylsilyl cyanide to ketones by a catalytic double-activation method is described. By combinatorially using 2.0 mol% of a chiral salen-titanium complex and 1.0 mol% of an achiral tertiary amine N-oxide, aromatic ...
Jiang, YZ   +5 more
core  

Enantioselective cyanosilylation of ketones by a catalytic double-activation method employing chiral Lewis acid and achiral N-oxide catalysts

open access: yes, 2003
Enantloselective addition of TMSCN to ketones is achieved by a catalytic double-activation method using 1a-Ti(IV) complex as the Lewis acid and achiral N-oxide 2 as the Lewis base to activate ketones and TMSCN ...
Jiang, YZ   +5 more
core  

Regioselective Synthesis of Multisubstituted Pyrazoles via Cyclocondensation of β-Thioalkyl-α,β-Unsaturated Ketones with Hydrazines

open access: yes, 2011
Regioselective Synthesis of Multisubstituted Pyrazoles via Cyclocondensation of β-Thioalkyl-α,β-Unsaturated Ketones with ...
于海丰, 金伟伟, 余正坤
core  

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