Results 21 to 30 of about 65,546 (303)
Asymmetric hydrogenation of 1,1-diarylethylenes and benzophenones through a relay strategy
Nature Communications, 2023 Homogenous transition-metal catalysts bearing a chiral ligand are widely used for asymmetric hydrogenation of unsaturated compounds such as olefins and ketones, providing efficient concise access to products with chiral carbon centers.
Ke Li +3 more
doaj +1 more source
Selective Hydrogenation of 1-Hexyne Using Pd-Cu and Pd-W Supported on Alumina Catalysts
Chemical Engineering Transactions, 2013 Vinyl acetylene and 1-butyne are by products in mixed C4 separation processes and they must be eliminated due to their high flammability. However, C4 acetylene can be upgraded to higher value hydrocarbons such as 1,3-butadiene and 1-butene by using ...
P. Insorn +2 more
doaj +1 more source
Molecules, 2021 This work is addressing the arenes’ hydrogenation—the processes of high importance for petrochemical, chemical and pharmaceutical industries. Noble metal (Pd, Pt, Ru) nanoparticles (NPs) stabilized in hyper-cross-linked polystyrene (HPS) were shown to be
Elena S. Bakhvalova +7 more
doaj +1 more source
A frustrated-Lewis-pair approach to catalytic reduction of alkynes to cis-alkenes [PDF]
, 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
Ultrasound- and microwave-assisted preparation of lead-free palladium catalysts: effects on the kinetics of diphenylacetylene semi-hydrogenation [PDF]
, 2015 The effect of environmentally benign enabling technologies such as ultrasound and microwaves on the preparation of the lead-free Pd catalyst has been studied.
Bonrath, Werner +6 more
core +1 more source
ChemistryOpen, 2022 Superior catalytic performance for selective 1,3‐butadiene (1,3‐BD) hydrogenation can usually be achieved with supported bimetallic catalysts. In this work, Pt−Co nanoparticles and Pt nanoparticles supported on metal–organic framework MIL‐100(Fe ...
Prof. Lili Liu +6 more
doaj +1 more source
Catalysis Communications, 2023 SiO2-supported NiIr alloy acted as an effective heterogeneous catalyst for the hydrogenation of benzonitrile, crotonaldehyde and benzylideneacetone, showing much higher activity than monometallic Ni/SiO2 and Ir/SiO2 catalysts and superior selectivity to ...
Jia-qi Bai +10 more
doaj +1 more source
Reduction of diphenylacetylene using Al powder in the presence of noble metal catalysts in water [PDF]
, 2016 Diphenylacetylenes can be reduced to the corresponding diphenylethanes (2) in water in excellent yield using Al powder and Pd/C at 60 °C for 3 h in a sealed tube.
Kowser, Zannatul +3 more
core +1 more source
Selective gas phase hydrogenation of nitroarenes over Mo2C-supported Au–Pd [PDF]
, 2016 Open Access via RSC Gold 4 Gold Financial support to Dr. X. Wang through the Overseas Research Students Award Scheme (ORSAS) is acknowledged. Dr. N. Perret also acknowledges financial support from COST Action MP0903 Nanoalloys.Peer reviewedPublisher ...
Delannoy, Laurent +4 more
core +2 more sources
Selective Hydrogen Adsorption in Graphene Rotated Bilayers [PDF]
The Journal of Physical Chemistry B, 2017 The absorption energy of atomic hydrogen at rotated graphene bilayers is studied using ab initio methods based on the density functional theory including van der Waals interactions. We find that, due to the surface corrugation induced by the underneath rotated layer and the perturbation of the electronic density of states near the Fermi energy, the ...
Ivan Brihuega, Felix Yndurain
openaire +3 more sources