Results 61 to 70 of about 6,547 (205)

Phosphorus-free nitrogen-containing catalytic systems for hydroformylation and tandem hydroformylation-based reactions

open access: yes, 2022
International audienceHydroformylation is an important industrial process applied for the production of many highly-demanded chemicals. For now, only the Co/phosphine, Rh/phosphine, or ligand-free systems are used in industry.
Nenasheva, M.V.   +10 more
core   +1 more source

Cyclodextrin-grafted polymers functionalized with phosphanes: a new tool for aqueous organometallic catalysis

open access: yesBeilstein Journal of Organic Chemistry, 2014
New cyclodextrin (CD)-grafted polymers functionalized with water-soluble phosphanes were synthesized in three steps starting from polyNAS. Once characterized by NMR spectroscopy and size-exclusion chromatography, they were used as additives in Rh ...
Jonathan Potier   +5 more
doaj   +1 more source

Organometallic catalysis: some contributions to organic synthesis

open access: yesQuímica Nova, 2003
In the present paper some general aspects of metal complex catalysis and its applications for oxyfunctionalization of various olefins, including naturally occurring ones, via selective oxidation, hydroformylation and alkoxycarbonylation are discussed.
Elena V. Gusevskaya
doaj   +1 more source

Operando X‐Ray Absorption Spectroscopy Reveals Dynamic Interfacial Metal–Metal Coordination Governing CO2 Reduction Selectivity in PdAg Alloys

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 15, 4 August 2026.
Operando X‐ray absorption spectroscopy uncovers dynamic Ag–Pd coordination in PdxAg1−x electrocatalysts during CO2 reduction. Partial oxidation of Ag and composition‐dependent metal–metal bonding synergistically regulate intermediate binding, enabling ∼91% CO selectivity.
Ruspika Sundaresan   +8 more
wiley   +1 more source

Rhodium-Catalysed Asymmetric Hydroformylation of Unsaturated Nitriles [PDF]

open access: yes, 2003
Asymmetric hydroformylation of crotononitrile (1) and allyl cyanide (2) was probed with the view to develop a synthesis for (R)-4-amino-2-methyl-butan-1-ol.
Vries, Johannes G. de   +3 more
core   +2 more sources

A concise access to bridged [2,2,1] bicyclic lactones with a quaternary stereocenter via stereospecific hydroformylation

open access: yesNature Communications, 2021
Enantiomeric bridged [2,2,1] bicyclic lactone skeletons and their ring-opening products are important scaffolds widely occurring in both pharmaceutics and biology active compounds.
Shuailong Li   +5 more
doaj   +1 more source

A Practical Protocol for the Auto‐Tandem Isomerizing Hydroformylation: Systematic Optimization and Transferability Across Different Substrates

open access: yesChemCatChem, Volume 18, Issue 16, 27 August 2026.
Design of Experiments enables systematic optimisation of Rh/BiPhePhos‐catalyzed isomerising hydroformylation of internal olefins, revealing conditions for high activity or linear selectivity. The optimised auto‐tandem process delivers linear aldehydes with l/b‐ratios up to 34.3 and improves the conversion of renewable methyl oleate and many other ...
Jerome Hommes   +3 more
wiley   +1 more source

Porous Organic Polymers: From Molecular Design to Scalable Technologies

open access: yesSmall, Volume 22, Issue 46, 18 August 2026.
This review introduces porous organic polymers (POPs) for a wide range of applications, including energy storage, gas adsorption, catalysts, adsorbents, biomedical applications, sensors, and other exciting fields, and critically analyzes the synthesis and modification, and how structural topology influences the composites' architecture of POPs, along ...
Hossein Mashhadimoslem   +12 more
wiley   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

open access: yesThe Chemical Record, Volume 26, Issue 8, August 2026.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros   +5 more
wiley   +1 more source

The PPh3 ligand modified Rh/SiO2 catalyst for hydroformylation of olefins

open access: yes, 2004
A novel family of hybrid catalyst with high turnover frequency (TOF) and high selectivity towards aldehydes for hydroformylation of olefins could be successfully approached through direct coordination with the PPh3 ligand to the highly dispersed Rh metal
Ding, YJ   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy