Molecules, 2020 Epoxidation of the C=C double bond in unsaturated norlignans derived from hydroxymatairesinol was studied. The intermediate epoxides were formed in up to quantitative conversions and were readily further transformed into tetrahydrofuran, aryltetralin ...
Patrik A. Runeberg +2 more
doaj +1 more source
Epoxidation of Terminalia catappa L. Seed oil: Optimization reaction
South African Journal of Chemical Engineering, 2023 Unsaturated fatty acids contained in vegetable oils can be used as a raw material to produce epoxy through epoxidation reactions. This study aims to obtain the optimum conditions for the epoxidation reaction of Terminalia catappa L. (local name “ketapang”
Erin Ryantin Gunawan +4 more
doaj
Structure and Energetics of Graphene Oxide Isomers: Ab Initio Thermodynamic Analysis [PDF]
, 2015 Graphene oxide (GO) holds significant promise for electronic devices and nanocomposite materials. A number of models were proposed for GO structure, combining carboxyl, hydroxyl, carbonyl and epoxide groups at different locations. The complexity and variety of GO isomers, whose thermodynamic stability and formation kinetics depend on applied conditions,
arxiv +1 more source
Synthesis of siloxane-containing epoxy polymers Patent [PDF]
, 1970 Synthesis of siloxane containing epoxy polymers with low dielectric ...
Patterson, W. J.
core +1 more source
Flavoprotein monooxygenases for oxidative biocatalysis: recombinant expression in microbial hosts and applications [PDF]
, 2014 External flavoprotein monooxygenases comprise a group of flavin-dependent oxidoreductases that catalyze the insertion of one atom of molecular oxygen into an organic substrate and the second atom is reduced to water. These enzymes are involved in a great
Bianchi, Dario Alejandro +2 more
core +2 more sources
Generation of Molecular Complexity from Cyclooctatetraene: Preparation of Aminobicyclo[5.1.0]octitols [PDF]
, 2015 A series of eight stereoisomeric N-(tetrahydroxy bicyclo-[5.1.0]oct-2S*-yl)phthalimides were prepared in one to four steps from N-(bicyclo[5.1.0]octa-3,5-dien-2-yl)phthalimide (±)-7, which is readily available from cyclooctatetraene (62 % yield).
Donaldson, William +5 more
core +2 more sources
Lignin modification by epoxidation
BioResources, 2008 The chemical modification of lignin through hydroxymethylation and epoxidation is a way to develop new application fields and improvement of lignin performances. In this paper the influence of reaction conditions was studied using different samples of unmodified and modified lignins from annual plants (Wheat straw and Sarkanda grass).
Theodor Malutan +2 more
openaire +3 more sources
Computationally Designed Zirconium Organometallic Catalyst for Direct Epoxidation of Alkenes without Allylic H Atoms: Aromatic Linkage Eliminates Formation of Inert Octahedral Complexes [PDF]
arXiv, 2015 We used density functional theory to computationally design a Zr organometallic catalyst for selectively oxidizing substrates using molecular oxygen as oxidant without coreductant. Each selective oxidation cycle involves four general steps: (a) a peroxo or weakly adsorbed O2 group releases an O atom to substrate to form substrate oxide and an oxo group,
arxiv
Enantioselective Synthesis of 5-epi-Citreoviral Using Ruthenium-Catalyzed Asymmetric Ring-Closing Metathesis [PDF]
, 2009 Chiral ruthenium olefin metathesis catalysts can perform asymmetric ring-closing reactions in ≥90% ee with low catalyst loadings. To illustrate the practicality of these reactions and the products they form, an enantioselective total synthesis of 5-epi ...
Funk, Timothy W.
core +2 more sources
A minimal mathematical model of nonphotochemical quenching of chlorophyll fluorescence [PDF]
, 2010 Copyright © 2010 Elsevier Ireland Ltd.
Ebenhöh, Oliver +4 more
core +1 more source