Results 11 to 20 of about 62,486 (246)

Scientific Opinion on Flavouring Group Evaluation 7, Revision 4 (FGE.07Rev4):Saturated and unsaturated aliphatic secondary alcohols, ketones and esters of secondary alcohols and saturated linear or branched-chain carboxylic acids from chemical group 5 [PDF]

open access: yesEFSA Journal, 2012
<p>The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to evaluate 49 flavouring substances in the Flavouring Group Evaluation 07, including additional five substances in
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

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

Radical alpha-Trifluoromethoxylation of Ketones by Means of Organic Photoredox Catalysis [PDF]

open access: yes, 2021
The first light-driven method for the alpha-trifluoromethoxylation of ketones is reported. Enol carbonates, in particular Boc derivatives, react with N-trifluoromethoxy-4-cyano-pyridinium triflimide (2a) using the photoredox-catalyst 4-CzIPN (5 mol ...
Antonio , Togni   +8 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

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  

Synthesis and Oxidative Transformations of New Chiral Pinane-Type γ-Ketothiols: Stereochemical Features of Reactions

open access: yesMolecules, 2021
Chiral γ-ketothiols, thioacetates, thiobenzoate, disulfides, sulfones, thiosulfonates, and sulfonic acids were obtained from β-pinene for the first time.
Olga M. Lezina   +4 more
doaj   +1 more source

Palladium-catalyzed α-arylation of arylketones at low catalyst loadings [PDF]

open access: yes, 2014
The authors thank the ERC (Advanced Researcher award-FUNCAT), 7th Framework Program NMP2-LA-2010–246461 (SYNFLOW) and King Saud University for funding.A general catalytic protocol for the a-arylation of aryl ketones has been developed.
Nolan, Steven Patrick   +10 more
core   +1 more source

Organocatalytic Michael addition–lactonisation of carboxylic acids using α,β-unsaturated trichloromethyl ketones as α,β-unsaturated ester equivalents [PDF]

open access: yes, 2014
The authors thank the Royal Society for a University Research Fellowship (ADS), The Carnegie Trust for the Universities of Scotland (LCM), Syngenta/EPSRC (Case award to DGS), GSK/EPSRC (CASE award to SRS), the EU (IEF for CS), and the European Research ...
Morrill, L.C.   +19 more
core   +1 more source

Oxidative Cleavage of Ketoximes to Ketones using Photoexcited Nitroarenes [PDF]

open access: yes, 2023
Methoximes are a versatile directing group for a variety of C–H functionalizations. Despite their importance as a powerful functional handle, their conversion to the parent ketone, which is often desired, usually requires harsh and functional group ...
Richmond, Sarpong   +2 more
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

Home - About - Disclaimer - Privacy