Influence of the structure of higher alkenes on their oxidation in aqueous solutions of palladium(II) salts

Kolb, M.; Bratz, Ernst; Dialer, K.

doi:10.1016/0304-5102(77)80011-4

Cited by 22 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Meanwhile, the use of 3 or 12 mmol hydrogen peroxide did not have any positive effect (Table S1, entries 8–9, Supporting Information). Kolb et al and Horowitz confirmed that inorganic acids can contribute to the oxidation of olefins. Therefore, we tried to select other inorganic acids to explore the yield of the product.…”

Section: Resultsmentioning

confidence: 97%

Covalent Triazine Frameworks with Palladium Nanoclusters as Highly Efficient Heterogeneous Catalysts for Styrene Oxidation

Zhang

et al. 2022

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Catalytic oxidation of styrene has attracted extensive attention in industries and academia. Benzaldehyde, one of the derived valuable aromatic aldehyde oxidation products, has been extensively applied in the perfume, pharmacy, and dye industries. However, it is difficult to achieve a high yield by transforming styrene into benzaldehyde with a sustainable supply of active catalysts. Furthermore, conventional catalyst species inevitably suffer permanent catalytic failure, which largely limits the product yield. Covalent triazine frameworks (CTFs) have emerged as an excellent platform for heterogeneous catalysis due to their regular pore channels and large specific surface area. Herein, we report the use of a CTF loaded with Pd clusters (DCP-CTF@Pd-MC) with a heteropore structure to oxidize styrene into benzaldehyde. The obtained DCP-CTF@Pd-MC with high catalytic stability is easy to recycle and shows excellent catalytic activity. The striking catalytic performance, with a high product yield of 95%, can be attributed to the heteropore structure anchoring more exposed active sites. The strong coordination of the pyridine nitrogen atoms in the catalyst frameworks with Pd clusters enables better chemical stability, especially in catalytic reactions. Moreover, well-provided transport channels can accelerate mass transfer between the reactants and products.

show abstract

Section: Resultsmentioning

confidence: 97%

Covalent Triazine Frameworks with Palladium Nanoclusters as Highly Efficient Heterogeneous Catalysts for Styrene Oxidation

Zhang

et al. 2022

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

show abstract

“…In these systems, the reaction rate increases with increasing [Н + ] and also depends on the concentra tion and nature of quinone (Q) [167,168,170]. This behavior is significantly different from that observed in classical chloride catalytic Wacker oxidation systems (PdCl 2 -CuCl 2 and PdCl 2 -Q), in which the reaction rate either decreases with increasing [Н + ] [52,53] or is independent of [Н + ], e.g., in the case of cyclohexene oxidation by benzoquinone [177,178].…”

Section: Arylation Of Olefins Via the Heck (Heck-mizoroki) Reaction Imentioning

confidence: 98%

Kinetic models of multi-route reactions in homogeneous catalysis with metal complexes (A Review)

Темкин

2012

Kinet Catal

View full text Add to dashboard Cite

The state of the art in the theory of routes for multi route reactions in the homogeneous catalysis with metal complexes is reviewed. Key problems and the possible approaches to their solution based on the Horiuti-Temkin theory of steady state reactions, which are useful in constructing the kinetic algebraic mod els of multi route processes, are discussed. A classification of the mechanisms of real processes involved in the homogeneous catalysis with metal complexes is presented. The chain mechanisms of catalytic processes, conjugated and associated reactions, and critical phenomena in the dynamics of homogeneous reactions are considered.

show abstract

“…Außerdem begünstigt die Gegenwart von Säure die Isomerisierung und führt so zu einer schlechten Selektivität für die Bildung von Methylketonen. [52] Zur Lösung dieses Problems wurden daher große Anstrengungen unternommen, unter anderem durch die Verwendung von Tensiden, [53] Cyclodextrinen, [54] immobilisierten Katalysatoren [55] und nichtklassischen Lösungsmitteln wie Polyethylenglycolen, [56] fluorigen Phasen, [57] ionischen Flüssigkeiten [58] und überkritischem Kohlendioxid. [59] Das Palladiumacetat/Benzochinon-System wurde auch zusammen mit Wasserstoffperoxid als eigentlichem Oxidationsmittel verwendet.…”

Section: Palladiumkatalysierte Aerobe Oxidationen Mithilfe Von Etmsunclassified

Katalytische Oxidation von organischen Substraten durch molekularen Sauerstoff und Wasserstoffperoxid über einen mehrstufigen Elektronentransfer – ein biomimetischer Ansatz

2008

View full text Add to dashboard Cite

Oxidationsreaktionen sind sowohl in der Natur von grundlegender Bedeutung als auch entscheidende Umwandlungen in der organischen Synthese. Verfahren, die Übergangsmetalle als substratselektive Katalysatoren und umweltfreundliche stöchiometrische Oxidationsmittel wie molekularen Sauerstoff oder Wasserstoffperoxid nutzen, sind daher eines der wichtigsten Ziele in der Oxidationschemie. Die direkte Oxidation des Katalysators durch molekularen Sauerstoff oder Wasserstoffperoxid ist jedoch häufig kinetisch ungünstigt. Gekoppelte Katalysatorsysteme, d. h. solche, an denen Elektronentransfermediatoren (ETMs) beteiligt sind, können einen energiearmen Weg für die Übertragung der Elektronen vom Katalysator auf das Oxidationsmittel bereitstellen. Dies erhöht die Effizienz der Oxidation deutlich und erweitert den Anwendungsbereich direkter Oxidationsreaktionen erheblich. Wegen der Ähnlichkeit mit biologischen Systemen kann diese Herangehensweise als biomimetischer Ansatz bezeichnet werden.

show abstract

Influence of the structure of higher alkenes on their oxidation in aqueous solutions of palladium(II) salts

Cited by 22 publications

References 20 publications

Covalent Triazine Frameworks with Palladium Nanoclusters as Highly Efficient Heterogeneous Catalysts for Styrene Oxidation

Covalent Triazine Frameworks with Palladium Nanoclusters as Highly Efficient Heterogeneous Catalysts for Styrene Oxidation

Kinetic models of multi-route reactions in homogeneous catalysis with metal complexes (A Review)

Katalytische Oxidation von organischen Substraten durch molekularen Sauerstoff und Wasserstoffperoxid über einen mehrstufigen Elektronentransfer – ein biomimetischer Ansatz

Contact Info

Product

Resources

About