Results 31 to 40 of about 4,197,741 (336)

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

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

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

Direct Synthesis of Cycloalkanes from Diols and Secondary Alcohols or Ketones Using a Homogeneous Manganese Catalyst.

open access: yesJournal of the American Chemical Society, 2019
A method for the synthesis of substituted cycloalkanes was developed using diols and secondary alcohols or ketones via a cascade hydrogen borrowing sequence. A non-noble and air-stable manganese catalyst (2 mol %) was used to perform this transformation.
Akash Kaithal   +4 more
semanticscholar   +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

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

Saccharomyces cerevisiae in the production of fermented beverages [PDF]

open access: yes, 2016
Alcoholic beverages are produced following the fermentation of sugars by yeasts, mainly (but not exclusively) strains of the species, Saccharomyces cerevisiae.
Stewart, Graham G., Walker, Graeme M.
core   +4 more sources

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

α-Alkylation of Ketones with Secondary Alcohols Catalyzed by Well-Defined Cp*CoIII -Complexes.

open access: yesChemSusChem, 2019
Although α-alkylation of ketones with primary alcohols by transition-metal catalysis is well-known, the same process with secondary alcohols is arduous and complicated by self-condensation.
P. Chakraborty   +5 more
semanticscholar   +1 more source

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