Kinetics and Mechanistic Aspects of the Heck Reaction Promoted by a CN–Palladacycle

Consorti, Crestina S.; Flores, Fabrício R.; Dupont, Jaı̈rton

doi:10.1021/ja206194f

Cited by 3 publications

(2 citation statements)

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“…Usually the catalytic phase does not show significant loss in activity. However, general limitations for metal nanoparticle catalysis are (I) metal leaching during phase separation [105,106], (II) extraction of organic molecules into the IL-layer and vice-versa [107], and (III) slow mass transfer in the multiphase system due the relatively high viscosity, hence low hydrogen gas solubility [108].…”

Section: Ruthenium Nanoparticles As Recyclable Catalysts In Ionic Liqmentioning

confidence: 99%

Ruthenium Nanoparticles in Ionic Liquids – A Saga

Campbell

Prechtl²,

Santini³

et al. 2013

COC

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Ionic liquids (ILs) are excellent media for the generation and stabilisation of metallic nanoparticles (NPs). Their ionic character coupled with 3-D structural pre-organisation in the liquid state, serves to direct the growth of transition metal NPs generated in situ, and to subsequently protect and stabilise them. Until now, many different NPs have been successfully synthesised within these media, however much attention has been paid to Ru-NPs. These have been prepared with small sizes and narrow size distributions by reduction of organometallic compounds with molecular hydrogen as well as decomposition of transition-metal complexes in the zero-valent state. These stable Ru-NPs immobilised in the ILs have proven to be efficient green catalysts for several reactions in multiphase conditions, including important energy-related processes such as biomass refinement. Furthermore, they present potential novel materials for use in the production of smarter electronic devices. In this review, the synthesis, stabilisation and size-control of Ru-NPs via various methods in different ILs is discussed, followed by their varied application in catalysis and potential in new fields.

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Section: Ruthenium Nanoparticles As Recyclable Catalysts In Ionic Liqmentioning

confidence: 99%

Ruthenium Nanoparticles in Ionic Liquids – A Saga

Campbell

Prechtl²,

Santini³

et al. 2013

COC

View full text Add to dashboard Cite

show abstract

“…Mechanistic details concerning the role of Pd-NPs in C-C cross-coupling reactions, were investigated by Dupont and co-workers. (Cassol et al, 2005;Consorti et al, 2005) The palladacycle (see Scheme 3) was rapidly transformed into Pd-NPs by reaction with dimethylallene even at room-temperature. These Pd-NPs were suspended in BMI.PF 6 (BMI: 1-n-butyl-3-methylimidazolium; PF 6 : hexafluorophosphate).…”

Section: Mizoroki-heck Reactionmentioning

confidence: 99%