A Highly Selective Arene Hydrogenation Catalyst that Operates in Ionic Liquid

Boxwell, Clive J.; Dyson, Paul J.; Ellis, David J.; Welton, Tom

doi:10.1021/ja026361r

Cited by 83 publications

(44 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ [32,33] and so knowledge on hydrogen solubility in these media is necessary. Morrissey et al [34] have studied the selective hydrogenation of trans-cinnamaldehyde using two classical imidazolium [34] this could be due to a variation of the hydrogen solubility.…”

Section: à3mentioning

confidence: 99%

The Presence of Functional Groups Key for Biodegradation in Ionic Liquids: Effect on Gas Solubility

Deng¹,

Morrissey²,

Gathergood³

et al. 2010

ChemSusChem

View full text Add to dashboard Cite

The effect of the incorporation of either ester or ester and ether functions into the side chain of an 1-alkyl-3-methylimidazolium cation on the physico-chemical properties of ionic liquids containing bis(trifluoromethylsulfonyl)imide or octylsulfate anions is studied. It is believed that the introduction of an ester function into the cation of the ionic liquids greatly increases their biodegradability. The density of three such ionic liquids is measured as a function of temperature, and the solubility of four gases-carbon dioxide, ethane, methane, and hydrogen-is determined between 303 K and 343 K and at pressures close to atmospheric level. Carbon dioxide is the most soluble gas, followed by ethane and methane; the mole fraction solubilities vary from 1.8 x 10(-3) to 3.7 x 10(-2). These solubilities are of the same order of magnitude as those determined for alkylimidazolium-based ionic liquids. The chemical modification of the alkyl side chain does not result in a significant change of the solvation properties of the ionic liquid. All of the solubilities decrease with increasing temperature, corresponding to an exothermal solvation process. From the variation of this property with temperature, the thermodynamic functions of solvation (Gibbs energy, enthalpy, and entropy) are calculated and provide information about the solute-solvent interactions and the molecular structure of the solutions.

show abstract

Section: à3mentioning

confidence: 99%

The Presence of Functional Groups Key for Biodegradation in Ionic Liquids: Effect on Gas Solubility

Deng¹,

Morrissey²,

Gathergood³

et al. 2010

ChemSusChem

View full text Add to dashboard Cite

show abstract

“…In contrast, a truly homogeneous ruthenium catalyst for the hydrogenation of benzenes seems to be generated by the precursor [RuCl(g 2 -triphos)(g 6 -p-cymene)]PF 6 , recently described by Dyson and coworkers (Scheme 16.6) [19]. The catalytic activity of this complex was evaluated at 90 8C and 60 bar H 2 either in dichloromethane or in a biphasic system comprising the substrate and 1-butyl-3-methylimidazolium tetrafluoroborate.…”

Section: Molecular Catalysts In Different Phase-variation Systemsmentioning

confidence: 99%

Hydrogenation of Arenes and Heteroaromatics

Bianchini¹,

Meli²,

Vizza³

2006

The Handbook of Homogeneous Hydrogenation

View full text Add to dashboard Cite

“…[12] It would appear to act in a homogeneous fashion although no decomposition or loss of activity is observed in the ionic liquid and some decomposition takes place in dichloromethane. In this paper we show that closely related water-soluble ruthenium complexes can catalyse the hydrogenation of arenes in very different ways.…”

Section: Introductionmentioning

confidence: 99%