An effective diphosphoramidite rhodium catalyst for selective hydroformylation of 1-octene

Drommi, Dario; Arena, Carmela Grazia

doi:10.1016/j.catcom.2018.07.004

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…A different kind of phosphoramidite ligand, based on the atropisomeric BINOL structure, was used in the preparation of a Rh(I) complex for the hydroformylation of 1-octene. The chiral compound displays the 1,2diaminobenzene moiety as the backbone and two (R)-1,1 -binaphtalene-2,2 -dioxy (BINO) groups linked to the nitrogen atoms [33] (Figure 1). Thus, the structure of this ligand seems to be ideal for hydroformylation reactions, due to the presence of a flat and stiff skeleton bearing two bulky moieties (the binaphthyl groups) with a defined configuration.…”

Section: Already Reported P-ligandsmentioning

confidence: 99%

Rh(I) Complexes in Catalysis: A Five-Year Trend

et al. 2021

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Rhodium is one of the most used metals in catalysis both in laboratory reactions and industrial processes. Despite the extensive exploration on “classical” ligands carried out during the past decades in the field of rhodium-catalyzed reactions, such as phosphines, and other common types of ligands including N-heterocyclic carbenes, ferrocenes, cyclopentadienyl anion and pentamethylcyclopentadienyl derivatives, etc., there is still lively research activity on this topic, with considerable efforts being made toward the synthesis of new preformed rhodium catalysts that can be both efficient and selective. Although the “golden age” of homogeneous catalysis might seem over, there is still plenty of room for improvement, especially from the point of view of a more sustainable chemistry. In this review, temporally restricted to the analysis of literature during the past five years (2015–2020), the latest findings and trends in the synthesis and applications of Rh(I) complexes to catalysis will be presented. From the analysis of the most recent literature, it seems clear that rhodium-catalyzed processes still represent a stimulating challenge for the metalloorganic chemist that is far from being over.

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Section: Already Reported P-ligandsmentioning

confidence: 99%

Rh(I) Complexes in Catalysis: A Five-Year Trend

et al. 2021

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“…Rh is regarded as an important active center, which is widely applied in various syntheses and their catalysis. − In numerous syntheses, it has been used as a catalyst for cyclopropanation, , hydroformylation, , and C–H bond activation; , what is more, it has also been used for manufacturing acetic acid and β2-amino acid . In particular, Shan et al reported a mononuclear rhodium species, which was anchored on a zeolite or titanium dioxide support suspended in an aqueous solution; they catalyzed the direct conversion of methane to methanol and acetic acid using oxygen and carbon monoxide under mild conditions.…”

Section: Introductionmentioning

confidence: 99%

Density Functional Theoretical Study on the Electronic Structure of Rh₂O₇⁺ with Low Oxidation States

Quan

Zhao

2020

ACS Omega

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Rh 2 O n + ( n = 2–10) species are prepared by the reaction of the laser-ablated rhodium atoms with oxygen; furthermore, they are characterized by employing time-of-flight mass spectroscopy. To reveal the stable electronic structure, in this study, we performed the density functional theory calculations for the possible isomers of Rh 2 O 7 + . A total of 29 geometries were obtained including cyclic Rh 2 O 3 , cyclic Rh 2 O 2 , and ring-opening structures with doublet, quartet, sextet, and octet states. It is noteworthy that no Rh–Rh bond was observed for all the optimized Rh 2 O 7 + isomers including oxides, peroxides, superoxides, and oxygen groups. The optimized geometries were also confirmed to exhibit minimum structural energies by employing harmonic frequency analysis at the same energy level. Generally, two types of oxygen-bridged geometries were discovered with cyclic and pseudo-linear Rh 2 O 7 + , which contained one or more than one O 2 groups. It is concluded that the cyclic structure comprises a lower energy than that observed in pseudo-linear structures. In addition, Rh 2 O 7 + tends to be unstable when the coordination groups change from O 2 to O 2 – unit. Finally, the localized orbital bonding analysis indicates that Rh has oxidation states of 1 or 2 in cyclic Rh 2 O 7 + structures; this is true even in the presence of O 2– , O 2 – , and O 2 2– groups.

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A Novel Strategy of Homogeneous Catalysis and Highly Efficient Recycling of Aqueous Catalyst for the Hydroformylation of Higher Olefins Based on a Simple Methanol/Water Mixed Solvent

Zhao

Yang

et al. 2020

Catal Lett

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An effective diphosphoramidite rhodium catalyst for selective hydroformylation of 1-octene

Cited by 6 publications

References 26 publications

Rh(I) Complexes in Catalysis: A Five-Year Trend

Rh(I) Complexes in Catalysis: A Five-Year Trend

Density Functional Theoretical Study on the Electronic Structure of Rh₂O₇⁺ with Low Oxidation States

A Novel Strategy of Homogeneous Catalysis and Highly Efficient Recycling of Aqueous Catalyst for the Hydroformylation of Higher Olefins Based on a Simple Methanol/Water Mixed Solvent

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An effective diphosphoramidite rhodium catalyst for selective hydroformylation of 1-octene

Cited by 6 publications

References 26 publications

Rh(I) Complexes in Catalysis: A Five-Year Trend

Rh(I) Complexes in Catalysis: A Five-Year Trend

Density Functional Theoretical Study on the Electronic Structure of Rh2O7+ with Low Oxidation States

A Novel Strategy of Homogeneous Catalysis and Highly Efficient Recycling of Aqueous Catalyst for the Hydroformylation of Higher Olefins Based on a Simple Methanol/Water Mixed Solvent

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Density Functional Theoretical Study on the Electronic Structure of Rh₂O₇⁺ with Low Oxidation States