Results 51 to 60 of about 6,547 (205)

Ligand Hydrogenation during Hydroformylation Catalysis Detected by In Situ High-Pressure Infra-Red Spectroscopic Analysis of a Rhodium/Phospholene-Phosphite Catalyst

open access: yesMolecules
Phospholane-phosphites are known to show highly unusual selectivity towards branched aldehydes in the hydroformylation of terminal alkenes. This paper describes the synthesis of hitherto unknown unsaturated phospholene borane precursors and their ...
José A. Fuentes   +6 more
doaj   +1 more source

Gas–liquid mass transfer enhancement in the presence of nanoparticles under slug flow in microreactors

open access: yesAIChE Journal, Volume 72, Issue 10, October 2026.
Abstract Nanofluids containing nanoparticles represent a promising solvent or reaction system for gas–liquid operations. Herein, the effect of nanoparticle (Al2O3 and SiO2) addition on gas–liquid slug flow pattern and mass transfer enhancement was investigated during CO2 absorption into water in microreactors.
Jie Zong, Jun Yue
wiley   +1 more source

Effector enhanced enantioselective hydroformylation [PDF]

open access: yes, 2019
In this communication, we report rhodium DIMPhos complexes with an integrated DIM-receptor that can bind carboxylate containing effectors and their application in the rhodium catalyzed hydroformylation reaction.
Bai, S.-T., Reek, J.N.H., Kluwer, A.M.
core   +1 more source

Anionic T‐Shaped Platinum(0) Pincer Complexes and Platinum(I) Intermediates in Radical Reactions With Alkyl Halides

open access: yesAngewandte Chemie, Volume 138, Issue 30, 20 July 2026.
Two anionic, T‐shaped, d10 platinum(0) complexes containing a PNP pincer ligand have been isolated and characterized. These complexes react with aliphatic C‐Br bonds under formation of a platinum(II) bromide and an alkyl complex, as well as the homocoupled hydrocarbons.
Vincenz J. Kohler   +6 more
wiley   +2 more sources

P(V)-Promoted Rh-Catalyzed Highly Regioselective Hydroformylation of Styrenes under Mild Conditions

open access: yesMolecules
Hydroformylation of olefins is widely used in the chemical industry due to its versatility and the ability to produce valuable aldehydes with 100% atom economy.
Tong Ru   +5 more
doaj   +1 more source

Synthesis and Characterization of Rh/B–TNTs as a Recyclable Catalyst for Hydroformylation of Olefin Containing –CN Functional Group

open access: yesNanomaterials, 2018
The TiO2-based nanotubes (TNTs, B–TNTs) of different surface acidities and their supported Rh catalysts were designed and synthesized. The catalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission ...
Penghe Su   +6 more
doaj   +1 more source

Low-temperature hydroformylation of ethylene by phosphorous stabilized Rh sites in a one-pot synthesized Rh-(O)-P-MFI zeolite

open access: yesNature Communications, 2023
Zeolites containing Rh single sites stabilized by phosphorous were prepared through a one-pot synthesis method and are shown to have superior activity and selectivity for ethylene hydroformylation at low temperature (50 °C).
Minjie Zhao   +10 more
doaj   +1 more source

Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications

open access: yesAdvanced Science, Volume 13, Issue 50, 7 September 2026.
Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li   +6 more
wiley   +1 more source

New catalysts for branched selective hydroformylation of alkenes

open access: yes, 2019
Both products, n-butyraldehyde and iso-butyraldehyde from propene hydroformylation are key building blocks for the synthesis of many chemical intermediates, and although high linear selectivity has been achieved, any form of branched selectivity ...
Iu, Leo
core   +1 more source

Continuous Flow Photochemical Hydroacylation of Dialkyl Azodicarboxylates: Telescoped Synthesis of Moclobemide

open access: yesChemPhotoChem, Volume 10, Issue 9, September 2026.
A continuous flow photochemical hydroacylation of azodicarboxylates protocol was developed, applicable in a broad substrate scope in good to excellent yields. Application of the developed protocol to a telescoped continuous flow multistep synthesis of the antidepressant Moclobemide, in 55% overall yield is presented.
Elisavet A. Farakla   +4 more
wiley   +1 more source

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