Results 41 to 50 of about 23,269 (237)

Anchoring single platinum atoms onto nickel nanoparticles affords highly selective catalysts for lignin conversion

open access: yesCell Reports Physical Science, 2021
Summary: Due to the highly complex polyphenolic structure of lignin, depolymerization without a prior chemical treatment is challenging, and new catalysts are required.
Lu Chen   +9 more
doaj   +1 more source

Synthesis of partially O-acetylated N-acetylneuraminic acid using regioselective silyl exchange technology. [PDF]

open access: yes, 2014
Postglycosylation acetylation of sialic acid imparts unique roles to sialoglycoconjugates in mammalian immune response making structural and functional understanding of these analogues important.
Gervay-Hague, Jacquelyn, Park, Simon S
core   +2 more sources

In Situ-Generated, Dispersed Cu Catalysts for the Catalytic Hydrogenolysis of Glycerol

open access: yesMolecules, 2022
The present study is dedicated to the experimental verification of a concept for the hydrogenolysis of glycerol over in situ-generated Cu dispersed particles (Cu-DP).
Iuliana Porukova   +4 more
doaj   +1 more source

Nickel-Mediated Hydrogenolysis of C–O Bonds of Aryl Ethers: What Is the Source of the Hydrogen? [PDF]

open access: yes, 2012
Mechanistic studies of the hydrogenolysis of aryl ethers by nickel were undertaken with (diphosphine)aryl methyl ethers. A Ni(0) complex containing Ni–arene interactions adjacent to the aryl–O bond was isolated.
Agapie, Theodor   +4 more
core   +3 more sources

Efficient Vapor‐Phase Selective Hydrogenolysis of Bio‐Levulinic Acid to γ‐Valerolactone Using Cu Supported on Hydrotalcite Catalysts

open access: yesGlobal Challenges, 2018
In this work, Cu nanoparticles (Cu NPs, 2‐20 nm) supported on Hydrotalcite catalysts exhibit enhanced selectivity for γ‐valerolactone (GVL) during hydrogenolysis of levulinic acid (LA).
Harisekhar Mitta   +6 more
doaj   +1 more source

Redox-mediated reactions of vinylferrocene: Toward redox auxiliaries [PDF]

open access: yes, 2016
Chemical redox reactions have been exploited to transform unreactive vinylferrocene into a powerful dienophile for the Diels–Alder reaction and reactive substrate for thiol addition reactions upon conversion to its ferrocenium state.
Cooke, Graeme   +5 more
core   +1 more source

Continuous production of glycerol by catalytic high pressure hydrogenolysis of sucrose [PDF]

open access: yes, 1970
Several continuous reactor systems have been discussed for the catalytic high pressure hydrogenolysis of sucrose to glycerol. Theoretically and actually, continuous reactors lead to lower glycerol yields than in a batch process.
Driessen, Alfons J.   +3 more
core   +3 more sources

Hydrogenolysis of glycerol over TiO2-supported Pt-WOx catalysts: Effects of the TiO2 crystal phase and WOx loading

open access: yesFrontiers in Chemistry, 2022
The selective hydrogenolysis of glycerol to 1,3-propanediol (1,3-PDO) with high added value is attraction but challenging. Pt-WOx-based catalysts have been extensively studied in the selective hydrogenolysis of glycerol.
Yaju Wang   +7 more
doaj   +1 more source

Development of covalent triazine frameworks as heterogeneous catalytic supports [PDF]

open access: yes, 2019
Covalent triazine frameworks (CTFs) are established as an emerging class of porous organic polymers with remarkable features such as large surface area and permanent porosity, high thermal and chemical stability, and convenient functionalization that ...
Krishnaraj, Chidharth   +3 more
core   +1 more source

Analysis of gas chromatography/mass spectrometry data for catalytic lignin depolymerization using positive matrix factorization [PDF]

open access: yes, 2018
Various catalytic technologies are being developed to efficiently convert lignin into renewable chemicals. However, due to its complexity, catalytic lignin depolymerization often generates a wide and complex distribution of product compounds.
Barrett, JA   +7 more
core   +1 more source

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