Hydroformylation

Cornils, B.; Börner, Armin; Franke, Robert; Zhang, Baoxin; Wiebus, Ernst; Schmid, K.

doi:10.1002/9783527651733.ch2

Cited by 14 publications

(7 citation statements)

References 244 publications

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“…A marked influence of the type of phosphine used on the rate and n -selectivity of the catalyst has been observed based on steric and electronic effects . This leads to the development of more complex phosphine ligand-modified cobalt , and rhodium ,− catalysts, the latter being superior to cobalt for short-chain olefins feedstocks. However, the intrinsic cost of rhodium and the degradation of the phosphine ligand must be considered for the overall economics and sustainability of the process .…”

Section: Introductionmentioning

confidence: 99%

“…Later, Wilkinson developed different phosphine-modified rhodium catalysts , that improved the chemoselectivity and regioselectivity of the reaction while operating at much lower pressures than the cobalt counterpart, improving the economy of the process. A marked influence of the type of phosphine used on the rate and n -selectivity of the catalyst has been observed based on steric and electronic effects . This leads to the development of more complex phosphine ligand-modified cobalt , and rhodium ,− catalysts, the latter being superior to cobalt for short-chain olefins feedstocks.…”

Section: Introductionmentioning

confidence: 99%

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Active and Regioselective Ru Single-Site Heterogeneous Catalysts for Alpha-Olefin Hydroformylation

et al. 2022

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A heterogeneous ruthenium catalyst consisting of isolated single atoms and disordered clusters stabilized in a N-doped carbon matrix has been synthesized with very good activity and remarkable regioselectivity in the hydroformylation of 1-hexene. The role of the nitrogen heteroatoms has been probed essential to increase the catalyst stability and activity, enabling the stabilization of Ru(II)–N sites according to X-ray photoelectron spectroscopy (XPS) and XANES. Intrinsic size-dependent activity of Ru species of different atomicity has been extracted, correlating the observed reaction rate and the particle size distribution determined by means of aberration-corrected high-angle annular dark-field scanning transmission electron microscopy, permitting the identification of single-atom sites as the most active ones. This catalyst appears as a promising alternative with respect to its heterogeneous counterparts, paving the way for designing improved Ru heterogeneous catalysts.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Active and Regioselective Ru Single-Site Heterogeneous Catalysts for Alpha-Olefin Hydroformylation

et al. 2022

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“…Hydroformylation of olefins is the most important process in the chemical industry to produce aliphatic aldehydes (global annual manufacture of around 10 million tons) for a range of applications. − Although the original cobalt-catalyzed process was discovered and commercialized more than 80 years ago, , there is still intense research both in industry and academia on this topic, especially regarding the development of new catalysts.…”

Section: Introductionmentioning

confidence: 99%

Cobalt-Catalyzed Hydroformylation under Mild Conditions in the Presence of Phosphine Oxides

Delolo

Yang

Neumann

et al. 2021

ACS Sustainable Chem. Eng.

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In the presence of phosphine oxides, specifically triphenylphosphine oxide (P14), the cobalt-catalyzed hydroformylation of olefins takes place under mild conditions compared to traditional processes. It is shown that the addition of P14 dramatically improves the preactivation of the classic cobalt precatalyst, thus saving time and energy. In addition, we show that anisole, a solvent with a high sustainability rank, can be used advantageously in such processes.

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“…Over the years, researchers have developed an increasingly efficient number of transition-metal catalysts and specialized ligands able to improve chemo-, regio-, and enantioselectivities . Several papers in the literature have recently highlighted that supramolecular interactions, such as hydrogen bonding between substrate and ligand, could give rise to a noncovalent substrate preorganization around the active catalytic site . Cyclodextrins and bidentate ligands cooperate with each other via supramolecular interactions promoting the regioselective formation of linear aldehydes .…”

Section: Mechanochemistry For Classical C–c Bond-forming Reactionsmentioning

confidence: 99%

Metal-Mediated and Metal-Catalyzed Reactions Under Mechanochemical Conditions

et al. 2020

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The extraordinary impact of metal-based complexes on synthetic methods is still recognized nowadays, and attempts are currently undertaken to further extend the use of metal-assisted chemistry to environmentally friendly processes within the strongly invoked green chemistry paradigm. In recent years, mechanochemistry seems to provide attractive responses with processing methods having origins lost in the mists of time. Focusing on the panorama of organic synthesis, this Review highlights some recently developed metal-assisted mechanochemical reactions to introduce the reader into the fascinating, quite unexplored world of mechanochemistry.

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Hydroformylation

Cited by 14 publications

References 244 publications

Active and Regioselective Ru Single-Site Heterogeneous Catalysts for Alpha-Olefin Hydroformylation

Active and Regioselective Ru Single-Site Heterogeneous Catalysts for Alpha-Olefin Hydroformylation

Cobalt-Catalyzed Hydroformylation under Mild Conditions in the Presence of Phosphine Oxides

Metal-Mediated and Metal-Catalyzed Reactions Under Mechanochemical Conditions

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