Results 31 to 40 of about 23,269 (237)

A frustrated-Lewis-pair approach to catalytic reduction of alkynes to cis-alkenes [PDF]

open access: yes, 2013
Frustrated Lewis pairs are compounds containing both Lewis acidic and Lewis basic moieties, where the formation of an adduct is prevented by steric hindrance.
Chernichenko, K.   +2 more
core   +1 more source

Synthetic O‐Polysaccharide Backbone Units for a Single Antigen Vaccine Against Two Major Non‐Typhoidal Salmonella Serovars

open access: yesAngewandte Chemie, EarlyView.
A modular strategy was developed to synthesize tri‐, hexa‐, and nona‐saccharides representing repeating units of the conserved O‐polysaccharide backbone of Salmonella. Conjugates of these glycans to bacteriophage Qβ induced strong IgG responses in mice and rabbits. Antibodies elicited recognized native O‐polysaccharides and conferred protection against
Xingling Pan   +7 more
wiley   +2 more sources

Integrated Cascade Biorefinery Processes to Transform Woody Biomass Into Phenolic Monomers and Carbon Quantum Dots

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
A novel cascade biorefinery strategy toward phenolic monomers and carbon quantum dots (CQDs) is proposed here via coupling catalytic hydrogenolysis and hydrothermal treatment.
Xue Chen   +4 more
doaj   +1 more source

Deviations of Fischer-Tropsch products from an Anderson-Schulz-Flory distribution [PDF]

open access: yes, 1988
Negative deviations from an Anderson-Schulz-Flory distribution have been observed for the product of the Fischer-Tropsch synthesis. The catalyst was a complex-derived iron-calcium catalyst promoted with cesium sulphate, therefore, neither carrier acidity
Snel, Ruud
core   +3 more sources

Synthesis of biodegradable polyesteramides with pendant functional groups [PDF]

open access: yes, 1992
Morpholine-2,5-dione derivatives having substituents with benzyl-protected carboxylic acid, benzyloxycarbonyl-protected amine and p-methoxy-protected thiol groups, respectively, were prepared in 29-58% yield by cyclization of the corresponding N-[(2RS ...
Dijkstra, Pieter J.   +2 more
core   +3 more sources

Catalytic Hydrogenolysis of Lignin for the Synthesis of Biokerosene

open access: yesChemical Engineering Transactions, 2019
In this work, catalyst consisting of Ru deposited on hypercrosslinked polystyrene (HPS) was investigated in the process of hydrogenolysis of lignin isolated from different substrates.
Elena I. Shimanskaya   +5 more
doaj   +1 more source

Fischer-tropsch synthesis on iron-based catalysts: the effect of co-feeding small oxygenates [PDF]

open access: yes, 1989
Co-feeding experiments have shown that ethers can participate substantially in the Fischer-Tropsch synthesis with iron catalysts. Dimethyl ether is thought to be capable of building up surface complexes which are very similar to those naturally occurring
Espinoza, Rafael L., Snel, Ruud
core   +2 more sources

Catalytic Hydrogenolysis Lignin to Obtain Phenols: A Review of Selective Cleavage of Ether Bonds

open access: yesBioResources, 2023
Lignin depolymerized phenolic compounds and biofuel precursors are ideal value-added products for lignin residues generated in biorefineries and modern paper pulp facilities.
Xiongjian Du, Shubin Wu, Penghui Li
doaj   +2 more sources

Tailoring the catalytic performance of Cu/SiO2 for hydrogenolysis of biomass-derived 5-hydroxymethylfurfural to renewable fuels

open access: yesFrontiers in Chemistry, 2022
Efficient conversion of biomass-derived 5-hydroxymethylfurfural (HMF) to renewable fuels such as 2,5-dimethylfuran (DMF) and 2,5-dimethyltetrahydrofuran (DMTHF) is of significance for sustainable energy supply.
Hongyan Jia   +4 more
doaj   +1 more source

Scope and Mechanistic Analysis for Chemoselective Hydrogenolysis of Carbonyl Compounds Catalyzed by a Cationic Ruthenium Hydride Complex with a Tunable Phenol Ligand [PDF]

open access: yes, 2015
A cationic ruthenium hydride complex, [(C6H6)(PCy3)(CO)RuH]+BF4– (1), with a phenol ligand was found to exhibit high catalytic activity for the hydrogenolysis of carbonyl compounds to yield the corresponding aliphatic products.
Kalutharage, Nishantha Kumara   +1 more
core   +7 more sources

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