Linked Life Data

19040254

Source:http://linkedlifedata.com/resource/pubmed/id/19040254

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2008-12-22
pubmed:abstractText
The palladium-catalyzed hydrogenolysis of aromatic ketones to alkylbenzenes was studied in mixtures of ionic liquids to explore the promotional effect of these reaction media. Choline-based ionic liquids displayed complete miscibility with the aromatic ketone substrate at reaction temperature and a clear phase separation of the derived alkylbenzene product at room temperature. Selected ionic liquids were then assessed as reaction media in the hydrogenolysis of aromatic ketones over palladium catalysts. A binary mixture of choline and betainium bis(trifluoromethylsulfonyl)imide ionic liquids resulted in the highest conversion and selectivity values in the hydrogenolysis of acetophenone. At the end of the reaction, the immiscible alkylbenzene separates from the ionic liquid mixture and the pure product phase can be isolated by simple decantation. After optimization of the reaction conditions, high yields (>90 %) of alkylbenzene were obtained in all cases. The catalyst and the ionic liquid could be used at least three times without any loss of activity or selectivity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1864-564X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
997-1005
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Catalytic hydrogenolysis of aromatic ketones in mixed choline-betainium ionic liquids.
pubmed:affiliation
Department of Microbial and Molecular Systems, KU Leuven, Centre for Surface Chemistry and Catalysis, Kasteelpark Arenberg 23, 3001 Leuven, Belgium.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't