Results 21 to 30 of about 59,417 (298)

Kinetic models of reaction systems for the in situ epoxidation of unsaturated fatty acid esters and triglycerides [PDF]

open access: yesHemijska Industrija, 2004
Mathematical models that describe the kinetics of reaction systems for the in situ epoxidation of unsaturated fatty acid esters or triglycérides with organic peracids are reviewed in this paper. The advantages and inadequacies of each model are discussed.
Janković Milovan R.   +1 more
doaj   +1 more source

Niobia as an efficient catalyst for the epoxidation of dicyclopentadiene

open access: yesCatalysis Communications, 2023
We studied the epoxidation of dicyclopentadiene (DCPD) with hydrogen peroxide over different heterogeneous catalysts. Among them, niobium pentoxide (Nb2O5) catalysts showed promising catalytic activity, giving mono- and di-epoxy DCPD with low amounts of ...
Sang-Ho Chung   +3 more
doaj  

Modification of chiral dimethyl tartrate through transesterification : immobilisation on POSS and enantioselectivity reversion in Sharpless asymmetric epoxidation [PDF]

open access: yes, 2010
Modification of dimethyl tartrate has been investigated through transesterification with aminoalcohols to provide reactive functionalities for the covalent bonding of chiral tartrate to polyhedral oligomeric silsesquioxanes.
García, Rafael A.   +4 more
core   +1 more source

Chemo-enzymatic epoxidation of fatty compounds – Focus on processes involving a lipase-catalyzed perhydrolysis step

open access: yesOléagineux, Corps gras, Lipides, 2008
At the industrial scale, the chemical Prileshajev reaction is currently the only method applied to produce epoxidized plant oils. Using enzymes could be an alternative way allowing an environmentally benign and more selective epoxidation reaction.
Tiran Céline   +3 more
doaj   +1 more source

Effects of different epoxidation methods of soybean oil on the characteristics of acrylated epoxidized soybean oil-co-poly(methyl methacrylate) copolymer

open access: yeseXPRESS Polymer Letters, 2013
The effect of the type of epoxidation processes of soybean oil on the characteristics of epoxidized soybean oils (ESOs), acrylated epoxidized soybean oils (AESOs), and acrylated epoxidized soybean oil – poly(methyl metacrylate) copolymers (AESO-co-PMMA ...
V. Tanrattanakul   +3 more
doaj   +1 more source

Amphiphilic peroxo polyoxometalate as reaction control phase transfer catalyst for efficient epoxidation of olefins

open access: yesMicro & Nano Letters, 2021
A peroxo polyoxometalate‐based catalyst was synthesized, characterized, and employed as a catalyst in the epoxidation of olefins with hydrogen peroxide (H2O2).
Jinghui Wu   +5 more
doaj   +1 more source

ATP allosterically activates the human 5-lipoxygenase molecular mechanism of arachidonic acid and 5(S)-hydroperoxy-6(E),8(Z),11(Z),14(Z)-eicosatetraenoic acid. [PDF]

open access: yes, 2014
5-Lipoxygenase (5-LOX) reacts with arachidonic acid (AA) to first generate 5(S)-hydroperoxy-6(E),8(Z),11(Z),14(Z)-eicosatetraenoic acid [5(S)-HpETE] and then an epoxide from 5(S)-HpETE to form leukotriene A4, from a single polyunsaturated fatty acid ...
Barbour, Shannon R   +4 more
core   +2 more sources

Biocatalytic Conversion of Epoxides [PDF]

open access: yesChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Erik J. de Vries, Dick B. Janssen
openaire   +4 more sources

Modular polyoxometalate-layered double hydroxides as efficient heterogeneous sulfoxidation and epoxidation catalysts [PDF]

open access: yes, 2018
Selective sulfoxidation of sulfides and epoxidation of olefins are two types of important organic reactions and the corresponding products of sulfoxides, sulfones and epoxides are widely used as raw materials in industrial processes.
Al-Maksoud   +57 more
core   +1 more source

Kinetics of the Epoxidation of Geraniol and Model Systems by Dimethyldioxirane

open access: yesMolecules, 2004
The mono-epoxidation of geraniol by dimethyldioxirane was carried out invarious solvents. In all cases, the product ratios for the 2,3 and 6,7 mono-epoxides werein agreement with literature values.
B. S. Crow   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy