Results 21 to 30 of about 160,515 (349)

Safety and efficacy of secondary aliphatic saturated or unsaturated alcohols, ketones, ketals and esters with a second secondary or tertiary oxygenated functional group belonging to chemical group 10 when used as flavourings for all animal species

open access: yesEFSA Journal, 2016
Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of 11 compounds belonging to chemical group 10 ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)   +28 more
doaj   +1 more source

Safety and efficacy of oct‐1‐en‐3‐ol, pent‐1‐en‐3‐ol, oct‐1‐en‐3‐one, oct‐1‐en‐3‐yl acetate, isopulegol and 5‐methylhept‐2‐en‐4‐one, belonging to chemical group 5 and of isopulegone and α‐damascone belonging to chemical group 8 when used as flavourings for all animal species

open access: yesEFSA Journal, 2020
Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of oct‐1‐en‐3‐ol [02.023], pent‐1‐en‐3‐ol [02.099],
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)   +22 more
doaj   +1 more source

Review of catalytic systems and thermodynamics for the Guerbet condensation reaction and challenges for biomass valorization [PDF]

open access: yes, 2015
The Guerbet condensation reaction is an alcohol coupling reaction that has been known for more than a century. Because of the increasing availability of bio-based alcohol feedstock, this reaction is of growing importance and interest in terms of value ...
Gabriels, D   +4 more
core   +2 more sources

Naturally occurring long-chain β-hydroxyketones

open access: yesJournal of Lipid Research, 1971
A fraction comprising about 0.7% of the extractable surface lipids of cabbage (Brassica oleracea) leaves was isolated and identified as a mixture of isomeric βhydroxyketones consisting mainly of 14-keto-16-hydroxynonacosane and 15-keto-13 ...
HARALD H.O. SCHMID, PATRICIA C. BANDI
doaj   +1 more source

Scalable Green Approach Toward Fragrant Acetates

open access: yesMolecules, 2020
The advantageous properties of ethylene glycol diacetate (EGDA) qualify it as a useful substitute for glycerol triacetate (GTA) for various green applications.
Eva Puchl’ová, Peter Szolcsányi
doaj   +1 more source

Application of Transition Metal Catalysis to Small Molecule Synthesis [PDF]

open access: yes, 2006
Over the past decade, transition metal catalysis has developed into a new field in organic synthesis, enabling numerous synthetic transformations that were previously not feasible.
Morrill, Christie
core   +1 more source

Ag2O Nanoparticles-Doped Manganese Immobilized on Graphene Nanocomposites for Aerial Oxidation of Secondary Alcohols

open access: yesMetals, 2018
Ag2O nanoparticles-doped MnO2 decorated on different percentages of highly reduced graphene oxide (HRG) nanocomposites, i.e., (X%)HRG/MnO2–(1%)Ag2O (where X = 0–7), were fabricated through straight-forward precipitation procedure, and 400 ...
Mohamed E. Assal   +6 more
doaj   +1 more source

Acid-catalysed carboxymethylation, methylation and dehydration of alcohols and phenols with dimethyl carbonate under mild conditions [PDF]

open access: yes, 2016
Dimethyl carbonate (DMC) chemistry has been extended to include acid-catalysed reactions of different aliphatic alcohols and phenols. For the first time, p-toluenesulfonic acid (PTSA), H2SO4, AlCl3 and FeCl3 have been shown to aid carboxymethylation for ...
Clark, James H.   +3 more
core   +1 more source

Stereospecific Oxidation of Secondary Alcohols by Human Alcohol Dehydrogenases

open access: yesJournal of Biological Chemistry, 1989
The human liver alpha alpha alcohol dehydrogenase exhibits a different substrate specificity and stereospecificity for secondary alcohols than the human beta 1 beta 1, and gamma 1 gamma 1 or horse liver alcohol dehydrogenases. All of the enzymes efficiently oxidize primary alcohols, but alpha alpha oxidizes secondary alcohols far more efficiently than ...
C L, Stone, T K, Li, W F, Bosron
openaire   +2 more sources

Catalytic oxidation of secondary alcohols [PDF]

open access: yes, 1992
The dioxygen oxidation of alcohols over platinum catalysts has been known for a long time. While of potential importance in synthetic procedures, this process has never found extensive use except in carbohydrate oxidations. Some reasons for this is the fact that this reaction only appears to work well in an aqueous medium in the presence of rather ...
Augustine, R. L., Doyle, L. K.
openaire   +5 more sources

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