Results 21 to 30 of about 205,384 (273)

Ketones and brain development: Implications for correcting deteriorating brain glucose metabolism during aging

open access: yesOilseeds and fats, crops and lipids, 2016
Brain energy metabolism in Alzheimer’s disease (AD) is characterized mainly by temporo-parietal glucose hypometabolism. This pattern has been widely viewed as a consequence of the disease, i.e.
Nugent Scott   +5 more
doaj   +1 more source

Synthesis of highly alkylated functionalized cyclopentadienes [PDF]

open access: yes, 1988
Tetra- and pentaalkylated cyclopentadienyl ketones and carboxylic acids are prepared by electrophilic allylation of enolizible 1,3-dicarbonyl compounds and successive acid catalyzed ...
Koschinsky, Rainer   +2 more
core   +1 more source

A general kinetic model for the photothermal oxidation of polypropylene [PDF]

open access: yes, 2014
A general kinetic model for the photothermal oxidation of polypropylene has been derived from the basic auto-oxidation mechanistic scheme in which the main sources of radicals are the thermolysis and photolysis of the most unstable species, i.e ...
COLIN, Xavier   +3 more
core   +3 more sources

Efficient and Practical Transfer Hydrogenation of Ketones Catalyzed by a Simple Bidentate Mn−NHC Complex [PDF]

open access: yes, 2019
Catalytic reductions of carbonyl‐containing compounds are highly important for the safe, sustainable, and economical production of alcohols. Herein, we report on the efficient transfer hydrogenation of ketones catalyzed by a highly potent Mn(I)−NHC ...
Benschop, Joeri   +6 more
core   +1 more source

Investigating the effectiveness of classical and eco-friendly approaches for synthesis of dialdehydes from organic dihalides

open access: yesGreen Processing and Synthesis, 2019
Monoaldehydes and dialdehydes are parts of millions of compounds and are extremely versatile intermediates. For the synthesis of monoaldehydes, one impressive approach to date, because of its excellent selectivity, high yield and stability towards over ...
Faisal Muhammad   +4 more
doaj   +1 more source

In pursuit of β-amino α-nitro β-trifluoromethyl ketones: nitro-Mannich vs Mannich-type reactions [PDF]

open access: yes, 2017
The reactivity of alfa-nitro ketones with trifluoromethyl aldimines is studied for the first time. While under nitro-Mannich conditions only the facial stereoselectivity can be controlled, organocatalysed Mannich-type reactions allowed a complete control
Ballini   +45 more
core   +1 more source

Selective oxidation of some primary and secondary benzylic alcohols to the corresponding carbonyl compounds with a Cu(III) complex [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
The selective oxidation of benzylic alcohols to the corresponding carbonyl compounds is described. In alkaline solution, the oxidation reagent potassium tetrasodium diperiodatocuprate(III) dodecahydrate (KNa4[Cu(HIO6)2]×12H2O) reacts with primary and ...
VLADAN KOSTIC   +2 more
doaj  

Palladium-catalyzed acetylation of arenes. [PDF]

open access: yes, 2014
A simple method for the preparation of aryl methyl ketones is reported. The transformation involves the Pd-catalyzed coupling of an acyl anion equivalent, acetyltrimethylsilane, with aryl bromides to afford the corresponding acetylated arenes in ...
Garg, Neil K, Ramgren, Stephen D
core   +1 more source

Ketones, omega-3 fatty acids and the Yin-Yang balance in the brain: insights from infant development and Alzheimer’s disease, and implications for human brain evolution★

open access: yesOilseeds and fats, crops and lipids, 2018
Optimal brain performance is intimately linked to the brain’s Yin and the Yang − the balance between its structure and its energy metabolism. This relationship is clearly exemplified in infant brain development and in Alzheimer’s disease, and probably ...
Cunnane Stephen C.
doaj   +1 more source

Synthesis of Quinazoline and Quinazolinone Derivatives via Ligand-Promoted Ruthenium-Catalyzed Dehydrogenative and Deaminative Coupling Reaction of 2-Aminophenyl Ketones and 2-Aminobenzamides with Amines [PDF]

open access: yes, 2019
The in situ formed ruthenium catalytic system ([Ru]/L) was found to be highly selective for the dehydrogenative coupling reaction of 2-aminophenyl ketones with amines to form quinazoline products.
Arachchige, Pandula T. Kirinde   +1 more
core   +3 more sources

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